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signaling</title> <meta name="description" content="Search results for: signaling"> <meta name="keywords" content="signaling"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="signaling"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 368</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: signaling</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">368</span> IPO Price Performance and Signaling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chih-Hsiang%20Chang">Chih-Hsiang Chang</a>, <a href="https://publications.waset.org/abstracts/search?q=I-Fan%20Ho"> I-Fan Ho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study examines the credibility of the signaling as explanation for IPO initial underpricing. Findings reveal the initial underpricing and the long-term underperformance of IPOs in Taiwan. However, we only find weak support for signaling as explanation of IPO underpricing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=signaling" title="signaling">signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=IPO%20initial%20underpricing" title=" IPO initial underpricing"> IPO initial underpricing</a>, <a href="https://publications.waset.org/abstracts/search?q=IPO%20long-term%20underperformance" title=" IPO long-term underperformance"> IPO long-term underperformance</a>, <a href="https://publications.waset.org/abstracts/search?q=Taiwan%E2%80%99s%20stock%20market" title=" Taiwan’s stock market"> Taiwan’s stock market</a> </p> <a href="https://publications.waset.org/abstracts/22348/ipo-price-performance-and-signaling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22348.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">461</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">367</span> Presentation of the Model of Reliability of the Signaling System with Emphasis on Determining Best Time Schedule for Repairments and Preventive Maintenance in the Iranian Railway</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maziar%20Yazdani">Maziar Yazdani</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20Khodaee"> Ahmad Khodaee</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatemeh%20Hajizadeh"> Fatemeh Hajizadeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this research was analysis of the reliability of the signaling system in the railway and planning repair and maintenance of its subsystems. For this purpose, it will be endeavored to introduce practical strategies for activities control and appropriate planning for repair and preventive maintenance by statistical modeling of reliability. Therefore, modeling, evaluation, and promotion of reliability of the signaling system appear very critical. Among the key goals of the railway is provision of quality service for passengers and this purpose is gained by increasing reliability, availability, maintainability and safety of (RAMS). In this research, data were analyzed, and the reliability of the subsystems and entire system was calculated and with emphasis on preservation of performance of each of the subsystems with a reliability of 80%, a plan for repair and preventive maintenance of the subsystems of the signaling system was introduced. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=reliability" title="reliability">reliability</a>, <a href="https://publications.waset.org/abstracts/search?q=modeling%20reliability" title=" modeling reliability"> modeling reliability</a>, <a href="https://publications.waset.org/abstracts/search?q=plan%20for%20repair%20and%20preventive%20maintenance" title=" plan for repair and preventive maintenance"> plan for repair and preventive maintenance</a>, <a href="https://publications.waset.org/abstracts/search?q=signaling%20system" title=" signaling system"> signaling system</a> </p> <a href="https://publications.waset.org/abstracts/90078/presentation-of-the-model-of-reliability-of-the-signaling-system-with-emphasis-on-determining-best-time-schedule-for-repairments-and-preventive-maintenance-in-the-iranian-railway" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90078.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">184</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">366</span> Investigating Role of Novel Molecular Players in Forebrain Roof-Plate Midline Invagination</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Ali%20Abbas%20Zaidi">Mohd Ali Abbas Zaidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Meenu%20Sachdeva"> Meenu Sachdeva</a>, <a href="https://publications.waset.org/abstracts/search?q=Jonaki%20Sen"> Jonaki Sen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the vertebrate embryo, the forebrain anlagen develops from the anterior-most region of the neural tube which is the precursor of the central nervous system (CNS). The roof plate located at the dorsal midline region of the forebrain anlagen, acts as a source of several secreted molecules involved in patterning and morphogenesis of the forebrain. One such key morphogenetic event is the invagination of the forebrain roof plate which results in separation of the single forebrain vesicle into two cerebral hemispheres. Retinoic acid (RA) signaling plays a key role in this process. Blocking RA signaling at the dorsal forebrain midline inhibits dorsal invagination and results in the absence of certain key features of this region, such as thinning of the neuroepithelium and a lowering of cell proliferation. At present we are investigating the possibility of other signaling pathways acting in concert with RA signaling to regulate this process. We have focused on BMP signaling, which we found to be active in a mutually exclusive domain to that of RA signaling within the roof plate. We have also observed that there is a change in BMP signaling activity on modulation of RA signaling indicating an antagonistic relationship between the two. Moreover, constitutive activation of BMP signaling seems to completely inhibit thinning and partially affect invagination, leaving the lowering of cell proliferation in the midline unaffected. We are employing in-silico modeling as well as molecular manipulations to investigate the relative contribution if any, of regional differences in rates of cell proliferation and thinning of the neuroepithelium towards the process of invagination. We have found expression of certain cell adhesion molecules in forebrain roof-plate whose mRNA localization across the thickness of neuroepithelium is influenced by Bmp and RA signaling, giving regional rigidity to roof plate and assisting invagination. We also found expression of certain cytoskeleton modifiers in a localized small domains in invaginating forebrain roof plate suggesting that midline invagination is under control of many factors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bone%20morphogenetic%20signaling" title="bone morphogenetic signaling">bone morphogenetic signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=cytoskeleton" title=" cytoskeleton"> cytoskeleton</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20adhesion%20molecules" title=" cell adhesion molecules"> cell adhesion molecules</a>, <a href="https://publications.waset.org/abstracts/search?q=forebrain%20roof%20plate" title=" forebrain roof plate"> forebrain roof plate</a>, <a href="https://publications.waset.org/abstracts/search?q=retinoic%20acid%20signaling" title=" retinoic acid signaling"> retinoic acid signaling</a> </p> <a href="https://publications.waset.org/abstracts/80622/investigating-role-of-novel-molecular-players-in-forebrain-roof-plate-midline-invagination" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80622.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">155</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">365</span> RACK1 Integrates Light and Brassinosteroid Signaling to Coordinate Cell Division During Root Soil Penetration</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Liang%20%20Jiansheng">Liang Jiansheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhu%20Wei"> Zhu Wei</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Light and brassinosteroids are essential external and internal cues for plant survival. Although the coordination of light with phytohormone signals is crucial for plant growth and development, the molecular connection between light and brassinosteroid signaling during root soil penetration remains elusive. Here, we reveal that light-stabilized RACK1 couples a brassinosteroid signaling cascade to drive cell division in root meristems. RACK1 family scaffold proteins positively regulate light-induced the promotion of root elongation during soil penetration. Under the light condition, RACK1A interacts with both phyB and SPA1, then reinforces the phyB-SPA1 association to accumulate its abundance in roots. In response to brassinosteroid signals, RACK1A competes with BKI1 to attenuate the BRI1-BKI1 interaction, thereby leading to activating BRI1 actions in root development. Furthermore, RACK1A binds to BES1 to repress its DNA binding activity toward the target gene CYCD3;1. This ultimately allows to release the inhibition of CYCD3;1 transcription, and promotes cell division during root growth. Our study illustrates a new mechanistic model of how plants engage scaffold proteins in transducing light information to facilitate brassinosteroid signaling for root growth in the soil. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=root%20growth" title="root growth">root growth</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20division" title=" cell division"> cell division</a>, <a href="https://publications.waset.org/abstracts/search?q=light%20signaling" title=" light signaling"> light signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=brassinosteroid%20signaling" title=" brassinosteroid signaling"> brassinosteroid signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20penetration" title=" soil penetration"> soil penetration</a>, <a href="https://publications.waset.org/abstracts/search?q=scaffold%20protein" title=" scaffold protein"> scaffold protein</a>, <a href="https://publications.waset.org/abstracts/search?q=RACK1" title=" RACK1"> RACK1</a> </p> <a href="https://publications.waset.org/abstracts/171045/rack1-integrates-light-and-brassinosteroid-signaling-to-coordinate-cell-division-during-root-soil-penetration" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/171045.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">80</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">364</span> Network Based Molecular Profiling of Intracranial Ependymoma over Spinal Ependymoma</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyeon%20Su%20Kim">Hyeon Su Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Sungjin%20Park"> Sungjin Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Hae%20Ryung%20Chang"> Hae Ryung Chang</a>, <a href="https://publications.waset.org/abstracts/search?q=Hae%20Rim%20Jung"> Hae Rim Jung</a>, <a href="https://publications.waset.org/abstracts/search?q=Young%20Zoo%20Ahn"> Young Zoo Ahn</a>, <a href="https://publications.waset.org/abstracts/search?q=Yon%20Hui%20Kim"> Yon Hui Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Seungyoon%20Nam"> Seungyoon Nam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ependymoma, one of the most common parenchymal spinal cord tumor, represents 3-6% of all CNS tumor. Especially intracranial ependymomas, which are more frequent in childhood, have a more poor prognosis and more malignant than spinal ependymomas. Although there are growing needs to understand pathogenesis, detailed molecular understanding of pathogenesis remains to be explored. A cancer cell is composed of complex signaling pathway networks, and identifying interaction between genes and/or proteins are crucial for understanding these pathways. Therefore, we explored each ependymoma in terms of differential expressed genes and signaling networks. We used Microsoft Excel™ to manipulate microarray data gathered from NCBI’s GEO Database. To analyze and visualize signaling network, we used web-based PATHOME algorithm and Cytoscape. We show HOX family and NEFL are down-regulated but SCL family is up-regulated in cerebrum and posterior fossa cancers over a spinal cancer, and JAK/STAT signaling pathway and Chemokine signaling pathway are significantly different in the both intracranial ependymoma comparing to spinal ependymoma. We are considering there may be an age-dependent mechanism under different histological pathogenesis. We annotated mutation data of each gene subsequently in order to find potential target genes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=systems%20biology" title="systems biology">systems biology</a>, <a href="https://publications.waset.org/abstracts/search?q=ependymoma" title=" ependymoma"> ependymoma</a>, <a href="https://publications.waset.org/abstracts/search?q=deg" title=" deg"> deg</a>, <a href="https://publications.waset.org/abstracts/search?q=network%20analysis" title=" network analysis"> network analysis</a> </p> <a href="https://publications.waset.org/abstracts/50168/network-based-molecular-profiling-of-intracranial-ependymoma-over-spinal-ependymoma" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50168.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">298</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">363</span> A Cooperative Signaling Scheme for Global Navigation Satellite Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Keunhong%20Chae">Keunhong Chae</a>, <a href="https://publications.waset.org/abstracts/search?q=Seokho%20Yoon"> Seokho Yoon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, the global navigation satellite system (GNSS) such as Galileo and GPS is employing more satellites to provide a higher degree of accuracy for the location service, thus calling for a more efficient signaling scheme among the satellites used in the overall GNSS network. In that the network throughput is improved, the spatial diversity can be one of the efficient signaling schemes; however, it requires multiple antenna that could cause a significant increase in the complexity of the GNSS. Thus, a diversity scheme called the cooperative signaling was proposed, where the virtual multiple-input multiple-output (MIMO) signaling is realized with using only a single antenna in the transmit satellite of interest and with modeling the neighboring satellites as relay nodes. The main drawback of the cooperative signaling is that the relay nodes receive the transmitted signal at different time instants, i.e., they operate in an asynchronous way, and thus, the overall performance of the GNSS network could degrade severely. To tackle the problem, several modified cooperative signaling schemes were proposed; however, all of them are difficult to implement due to a signal decoding at the relay nodes. Although the implementation at the relay nodes could be simpler to some degree by employing the time-reversal and conjugation operations instead of the signal decoding, it would be more efficient if we could implement the operations of the relay nodes at the source node having more resources than the relay nodes. So, in this paper, we propose a novel cooperative signaling scheme, where the data signals are combined in a unique way at the source node, thus obviating the need of the complex operations such as signal decoding, time-reversal and conjugation at the relay nodes. The numerical results confirm that the proposed scheme provides the same performance in the cooperative diversity and the bit error rate (BER) as the conventional scheme, while reducing the complexity at the relay nodes significantly. Acknowledgment: This work was supported by the National GNSS Research Center program of Defense Acquisition Program Administration and Agency for Defense Development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=global%20navigation%20satellite%20network" title="global navigation satellite network">global navigation satellite network</a>, <a href="https://publications.waset.org/abstracts/search?q=cooperative%20signaling" title=" cooperative signaling"> cooperative signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=data%20combining" title=" data combining"> data combining</a>, <a href="https://publications.waset.org/abstracts/search?q=nodes" title=" nodes"> nodes</a> </p> <a href="https://publications.waset.org/abstracts/54855/a-cooperative-signaling-scheme-for-global-navigation-satellite-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54855.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">280</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">362</span> Intensive Crosstalk between Autophagy and Intracellular Signaling Regulates Osteosarcoma Cell Survival Response under Cisplatin Stress</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jyothi%20Nagraj">Jyothi Nagraj</a>, <a href="https://publications.waset.org/abstracts/search?q=Sudeshna%20Mukherjee"> Sudeshna Mukherjee</a>, <a href="https://publications.waset.org/abstracts/search?q=Rajdeep%20Chowdhury"> Rajdeep Chowdhury</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Autophagy has recently been linked with cancer cell survival post drug insult contributing to acquisition of resistance. However, the molecular signaling governing autophagic survival response is poorly explored. In our study, in osteosarcoma (OS) cells cisplatin shock was found to activate both MAPK and autophagy signaling. An activation of JNK and autophagy acted as pro-survival strategy, while ERK1/2 triggered apoptotic signals upon cisplatin stress. An increased sensitivity of the cells to cisplatin was obtained with simultaneous inhibition of both autophagy and JNK pathway. Furthermore, we observed that the autophagic stimulation upon drug stress regulates other developmentally active signaling pathways like the Hippo pathway in OS cells. Cisplatin resistant cells were thereafter developed by repetitive drug exposure followed by clonal selection. Basal levels of autophagy were found to be high in resistant cells to. However, the signaling mechanism leading to autophagic up-regulation and its regulatory effect differed in OS cells upon attaining drug resistance. Our results provide valuable clues to regulatory dynamics of autophagy that can be considered for development of improved therapeutic strategy against resistant type cancers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=JNK" title="JNK">JNK</a>, <a href="https://publications.waset.org/abstracts/search?q=autophagy" title=" autophagy"> autophagy</a>, <a href="https://publications.waset.org/abstracts/search?q=drug%20resistance" title=" drug resistance"> drug resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=cancer" title=" cancer"> cancer</a> </p> <a href="https://publications.waset.org/abstracts/63712/intensive-crosstalk-between-autophagy-and-intracellular-signaling-regulates-osteosarcoma-cell-survival-response-under-cisplatin-stress" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63712.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">290</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">361</span> Non-Signaling Chemokine Receptor CCRL1 and Its Active Counterpart CCR7 in Prostate Cancer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yiding%20Qu">Yiding Qu</a>, <a href="https://publications.waset.org/abstracts/search?q=Svetlana%20V.%20Komarova"> Svetlana V. Komarova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Chemokines acting through their cognate chemokine receptors guide the directional migration of the cell along the chemokine gradient. Several chemokine receptors were recently identified as non-signaling (decoy), based on their ability to bind the chemokine but produce no measurable signal in the cell. The function of these decoy receptors is not well understood. We examined the expression of a decoy receptor CCRL1 and a signaling receptor that binds to the same ligands, CCR7, in prostate cancer using publically available microarray data (www.oncomine.org). The expression of both CCRL1 and CCR7 increased in an approximately half of prostate carcinoma samples and the majority of metastatic cancer samples compared to normal prostate. Moreover, the expression of CCRL1 positively correlated with the expression of CCR7. These data suggest that CCR7 and CCRL1 can be used as clinical markers for the early detection of transformation from carcinoma to metastatic cancer. In addition, these data support our hypothesis that the non-signaling chemokine receptors actively stimulate cell migration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioinformatics" title="bioinformatics">bioinformatics</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20migration" title=" cell migration"> cell migration</a>, <a href="https://publications.waset.org/abstracts/search?q=decoy%20receptor" title=" decoy receptor"> decoy receptor</a>, <a href="https://publications.waset.org/abstracts/search?q=meta-analysis" title=" meta-analysis"> meta-analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=prostate%20cancer" title=" prostate cancer"> prostate cancer</a> </p> <a href="https://publications.waset.org/abstracts/23226/non-signaling-chemokine-receptor-ccrl1-and-its-active-counterpart-ccr7-in-prostate-cancer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23226.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">470</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">360</span> Virtual Science Laboratory (ViSLab): The Effects of Visual Signalling Principles towards Students with Different Spatial Ability</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ai%20Chin%20Wong">Ai Chin Wong</a>, <a href="https://publications.waset.org/abstracts/search?q=Wan%20Ahmad%20Jaafar%20Wan%20Yahaya"> Wan Ahmad Jaafar Wan Yahaya</a>, <a href="https://publications.waset.org/abstracts/search?q=Balakrishnan%20Muniandy"> Balakrishnan Muniandy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to explore the impact of Virtual Reality (VR) using visual signaling principles in learning about the science laboratory safety guide; this study involves students with different spatial ability. There are two types of science laboratory safety lessons, which are Virtual Reality with Signaling (VRS) and Virtual Reality Non Signaling (VRNS). This research has adopted a 2 x 2 quasi-experimental factorial design. There are two types of variables involved in this research. The two modes of courseware form the independent variables with the spatial ability as the moderator variable. The dependent variable is the students’ performance. This study sample consisted of 141 students. Descriptive and inferential statistics were conducted to analyze the collected data. The major effects and the interaction effects of the independent variables on the independent variable were explored using the Analyses of Covariance (ANCOVA). Based on the findings of this research, the results exhibited low spatial ability students in VRS outperformed their counterparts in VRNS. However, there was no significant difference in students with high spatial ability using VRS and VRNS. Effective learning in students with different spatial ability can be boosted by implementing the Virtual Reality with Signaling (VRS) in the design as well as the development of Virtual Science Laboratory (ViSLab). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=spatial%20ability" title="spatial ability">spatial ability</a>, <a href="https://publications.waset.org/abstracts/search?q=science%20laboratory%20safety" title=" science laboratory safety"> science laboratory safety</a>, <a href="https://publications.waset.org/abstracts/search?q=visual%20signaling%20principles" title=" visual signaling principles"> visual signaling principles</a>, <a href="https://publications.waset.org/abstracts/search?q=virtual%20reality" title=" virtual reality"> virtual reality</a> </p> <a href="https://publications.waset.org/abstracts/78848/virtual-science-laboratory-vislab-the-effects-of-visual-signalling-principles-towards-students-with-different-spatial-ability" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78848.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">257</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">359</span> Developing Curricula for Signaling and Communication Course at Malaysia Railway Academy (MyRA) through Industrial Collaboration Program </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Fairus%20Humar">Mohd Fairus Humar</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20Sulaiman"> Ibrahim Sulaiman</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Cruz"> Pedro Cruz</a>, <a href="https://publications.waset.org/abstracts/search?q=Hasry%20Harun"> Hasry Harun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the propose knowledge transfer program on railway signaling and communication by Original Equipment Manufacturer (OEM) Thales Portugal. The fundamental issue is that there is no rail related course offered by local universities and colleges in Malaysia which could be an option to pursue student career path. Currently, dedicated trainings related to the rail technology are provided by in-house training academies established by the respective rail operators such as Malaysia Railway Academy (MyRA) and Rapid Rail Training Centre. In this matter, the content of training and facilities need to be strengthened to keep up-to-date with the dynamic evolvement of the rail technology. This is because rail products have evolved to be more sophisticated and embedded with high technology components which no longer exist in the mechanical form alone but combined with electronics, information technology and others. These demand for a workforce imbued with knowledge, multi-skills and competency to deal with specialized technical areas. Talent is needed to support sustainability in Southeast Asia. Keeping the above factors in mind, an Industrial Collaboration Program (ICP) was carried out to transfer knowledge on curricula of railway signaling and communication to a selected railway operators and tertiary educational institution in Malaysia. In order to achieve the aim, a partnership was formed between Technical Depository Agency (TDA), Thales Portugal and MyRA for two years with three main stages of program implementation comprising of: i) training on basic railway signaling and communication for 1 month with Thales in Malaysia; ii) training on advance railway signaling and communication for 4 months with Thales in Portugal and; iii) a series of workshop. Two workshops were convened to develop and harmonize curricula of railway signaling and communication course and were followed by one training for installation equipment of railway signaling and Controlled Train Centre (CTC) system from Thales Portugal. With active involvement from Technical Depository Agency (TDA), railway operators, universities, and colleges, in planning, executing, monitoring, control and closure, the program module of railway signaling and communication course with a lab railway signaling field equipment and CTC simulator were developed. Through this program, contributions from various parties help to build committed societies to engage important issues in relation to railway signaling and communication towards creating a sustainable future. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=knowledge%20transfer%20program" title="knowledge transfer program">knowledge transfer program</a>, <a href="https://publications.waset.org/abstracts/search?q=railway%20signaling%20and%20communication" title=" railway signaling and communication"> railway signaling and communication</a>, <a href="https://publications.waset.org/abstracts/search?q=curricula" title=" curricula"> curricula</a>, <a href="https://publications.waset.org/abstracts/search?q=module%20and%20teaching%20aid%20simulator" title=" module and teaching aid simulator"> module and teaching aid simulator</a> </p> <a href="https://publications.waset.org/abstracts/89833/developing-curricula-for-signaling-and-communication-course-at-malaysia-railway-academy-myra-through-industrial-collaboration-program" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/89833.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">192</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">358</span> Homeostatic Analysis of the Integrated Insulin and Glucagon Signaling Network: Demonstration of Bistable Response in Catabolic and Anabolic States</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pramod%20Somvanshi">Pramod Somvanshi</a>, <a href="https://publications.waset.org/abstracts/search?q=Manu%20Tomar"> Manu Tomar</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20V.%20Venkatesh"> K. V. Venkatesh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Insulin and glucagon are responsible for homeostasis of key plasma metabolites like glucose, amino acids and fatty acids in the blood plasma. These hormones act antagonistically to each other during the secretion and signaling stages. In the present work, we analyze the effect of macronutrients on the response from integrated insulin and glucagon signaling pathways. The insulin and glucagon pathways are connected by DAG (a calcium signaling component which is part of the glucagon signaling module) which activates PKC and inhibits IRS (insulin signaling component) constituting a crosstalk. AKT (insulin signaling component) inhibits cAMP (glucagon signaling component) through PDE3 forming the other crosstalk between the two signaling pathways. Physiological level of anabolism and catabolism is captured through a metric quantified by the activity levels of AKT and PKA in their phosphorylated states, which represent the insulin and glucagon signaling endpoints, respectively. Under resting and starving conditions, the phosphorylation metric represents homeostasis indicating a balance between the anabolic and catabolic activities in the tissues. The steady state analysis of the integrated network demonstrates the presence of a bistable response in the phosphorylation metric with respect to input plasma glucose levels. This indicates that two steady state conditions (one in the homeostatic zone and other in the anabolic zone) are possible for a given glucose concentration depending on the ON or OFF path. When glucose levels rise above normal, during post-meal conditions, the bistability is observed in the anabolic space denoting the dominance of the glycogenesis in liver. For glucose concentrations lower than the physiological levels, while exercising, metabolic response lies in the catabolic space denoting the prevalence of glycogenolysis in liver. The non-linear positive feedback of AKT on IRS in insulin signaling module of the network is the main cause of the bistable response. The span of bistability in the phosphorylation metric increases as plasma fatty acid and amino acid levels rise and eventually the response turns monostable and catabolic representing diabetic conditions. In the case of high fat or protein diet, fatty acids and amino acids have an inhibitory effect on the insulin signaling pathway by increasing the serine phosphorylation of IRS protein via the activation of PKC and S6K, respectively. Similar analysis was also performed with respect to input amino acid and fatty acid levels. This emergent property of bistability in the integrated network helps us understand why it becomes extremely difficult to treat obesity and diabetes when blood glucose level rises beyond a certain value. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bistability" title="bistability">bistability</a>, <a href="https://publications.waset.org/abstracts/search?q=diabetes" title=" diabetes"> diabetes</a>, <a href="https://publications.waset.org/abstracts/search?q=feedback%20and%20crosstalk" title=" feedback and crosstalk"> feedback and crosstalk</a>, <a href="https://publications.waset.org/abstracts/search?q=obesity" title=" obesity"> obesity</a> </p> <a href="https://publications.waset.org/abstracts/62958/homeostatic-analysis-of-the-integrated-insulin-and-glucagon-signaling-network-demonstration-of-bistable-response-in-catabolic-and-anabolic-states" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62958.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">275</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">357</span> ROCK Signaling and Radio Resistance: The Association and the Effect</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=P.%20Annapurna">P. Annapurna</a>, <a href="https://publications.waset.org/abstracts/search?q=Cecil%20Ross"> Cecil Ross</a>, <a href="https://publications.waset.org/abstracts/search?q=Sudhir%20Krishna"> Sudhir Krishna</a>, <a href="https://publications.waset.org/abstracts/search?q=Sweta%20Srivastava"> Sweta Srivastava </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Irradiation plays a pivotal role in cervical cancer treatment, however some tumors exhibit resistance to therapy while some exhibit relapse, due to better repair and enhanced resistance mechanisms operational in their cells. The present study aims to understand the signaling mechanism operational in resistance phenotype and in the present study we report the role of Rho GTPase associated protein kinase (ROCK) signaling in cervical carcinoma radio-resistance. ROCK signaling has been implicated in several tumor progressions and is important for DNA repair. Irradiation of spheroid cultures of SiHa cervical carcinoma derived cell line at 6Gy resulted in generation of resistant cells in vitro which had better clonogenic abilities and formed larger and more colonies, in soft agar colony formation assay, as compared to the non-irradiated cells. These cells also exhibited an enhanced motility phenotype. Cell cycle profiling showed the cells to be blocked in G2M phase with enhanced pCDC2 levels indicating onset of possible DNA repair mechanism. Notably, 3 days post-irradiation, irradiated cells showed increased ROCK2 translocation to the nucleus with enhanced protein expression as compared to the non-irradiated cells. Radio-sensitization of the resistant cells was enhanced using Y27632, an inhibitor to ROCK signaling. The treatment of resistant cells with Y27632 resulted in increased cell death upon further irradiation. This observation has been confirmed using inhibitory antibodies to ROCK1/2. Result show that both ROCK1/2 have a functional contribution in radiation resistance of cervical cancer cells derived from cell lines. Interestingly enrichment of stem like cells (Hoechst negative cells) was also observed upon irradiation and these cells were markedly sensitive to Y27632 treatment. Our results thus suggest the role of ROCK signaling in radio-resistance in cervical carcinoma. Further studies with human biopsies, mice models and mechanistic of ROCK signaling in the context of radio-resistance will clarify the role of this molecule further and allow for therapeutics development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cervical%20carcinoma" title="cervical carcinoma">cervical carcinoma</a>, <a href="https://publications.waset.org/abstracts/search?q=radio-resistance" title=" radio-resistance"> radio-resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=ROCK%20signaling" title=" ROCK signaling"> ROCK signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=cancer%20treatment" title=" cancer treatment"> cancer treatment</a> </p> <a href="https://publications.waset.org/abstracts/22602/rock-signaling-and-radio-resistance-the-association-and-the-effect" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22602.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">331</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">356</span> Stem Cell Differentiation Toward Secretory Progenitors after Intestinal Ischemia-Reperfusion in a Rat is Accompanied by Inhibited Notch Signaling Cascade</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Igor%20Sukhotnik">Igor Sukhotnik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objectives: Notch signaling is thought to act to drive cell versification in the lining of the small intestine. When Notch signaling is blocked, proliferation ceases, and epithelial cells become secretory. The purpose of the present study was to evaluate the role of Notch signaling pathway in stem cell differentiation in a rat model of intestinal ischemia-reperfusion (IR). Methods: Male Sprague-Dawley rats were randomly divided into four experimental groups: Sham-24 and Sham-48 rats underwent laparotomy and were killed 24 or 48 h later, respectively; IR-24 and IR-48 rats underwent occlusion of SMA and portal vein for 30 min followed by 24 or 48 h of reperfusion, respectively. Notch-related gene and protein expression were determined using Real Time PCR, Western blotting and immunohistochemistry. Wax histology and immunohistochemistry was used to determine cell differentiation toward absorptive (enterocytes) or secretory progenitors (goblet cells, enteroendocrine cells or Paneth cells). Results: IR-48 rats exhibited a significant decrease in Notch-1 protein expression (Western blot) that was coincided with a significant decrease in the number of Notch-1 positive cells (immunohistochemistry) in jejunum and ileum as well as Hes-1 positive cells in jejunum and ileum compared to Sham-48 rats. A significant down-regulation of Notch signaling related genes and proteins in IR animals was accompanied by a significant increase in the number of goblet and Paneth cells and decreased number of absorptive cells compared to control rats. Conclusions: Forty-eight hours following intestinal IR in rats, inhibited Notch signaling pathway was accompanied by intestinal stem cells differentiation toward secretory progenitors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Intestine" title="Intestine">Intestine</a>, <a href="https://publications.waset.org/abstracts/search?q=notch" title=" notch"> notch</a>, <a href="https://publications.waset.org/abstracts/search?q=ischemia-reperfusion" title=" ischemia-reperfusion"> ischemia-reperfusion</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20differentiation" title=" cell differentiation"> cell differentiation</a>, <a href="https://publications.waset.org/abstracts/search?q=secretory" title=" secretory"> secretory</a> </p> <a href="https://publications.waset.org/abstracts/170973/stem-cell-differentiation-toward-secretory-progenitors-after-intestinal-ischemia-reperfusion-in-a-rat-is-accompanied-by-inhibited-notch-signaling-cascade" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170973.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">58</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">355</span> Transcriptomine: The Nuclear Receptor Signaling Transcriptome Database</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Scott%20A.%20Ochsner">Scott A. Ochsner</a>, <a href="https://publications.waset.org/abstracts/search?q=Christopher%20M.%20Watkins"> Christopher M. Watkins</a>, <a href="https://publications.waset.org/abstracts/search?q=Apollo%20McOwiti"> Apollo McOwiti</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20L.%20Steffen%20Lauren%20B.%20Becnel"> David L. Steffen Lauren B. Becnel</a>, <a href="https://publications.waset.org/abstracts/search?q=Neil%20J.%20McKenna"> Neil J. McKenna</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Understanding signaling by nuclear receptors (NRs) requires an appreciation of their cognate ligand- and tissue-specific transcriptomes. While target gene regulation data are abundant in this field, they reside in hundreds of discrete publications in formats refractory to routine query and analysis and, accordingly, their full value to the NR signaling community has not been realized. One of the mandates of the Nuclear Receptor Signaling Atlas (NURSA) is to facilitate access of the community to existing public datasets. Pursuant to this mandate we are developing a freely-accessible community web resource, Transcriptomine, to bring together the sum total of available expression array and RNA-Seq data points generated by the field in a single location. Transcriptomine currently contains over 25,000,000 gene fold change datapoints from over 1200 contrasts relevant to over 100 NRs, ligands and coregulators in over 200 tissues and cell lines. Transcriptomine is designed to accommodate a spectrum of end users ranging from the bench researcher to those with advanced bioinformatic training. Visualization tools allow users to build custom charts to compare and contrast patterns of gene regulation across different tissues and in response to different ligands. Our resource affords an entirely new paradigm for leveraging gene expression data in the NR signaling field, empowering users to query gene fold changes across diverse regulatory molecules, tissues and cell lines, target genes, biological functions and disease associations, and that would otherwise be prohibitive in terms of time and effort. Transcriptomine will be regularly updated with gene lists from future genome-wide expression array and expression-sequencing datasets in the NR signaling field. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=target%20gene%20database" title="target gene database">target gene database</a>, <a href="https://publications.waset.org/abstracts/search?q=informatics" title=" informatics"> informatics</a>, <a href="https://publications.waset.org/abstracts/search?q=gene%20expression" title=" gene expression"> gene expression</a>, <a href="https://publications.waset.org/abstracts/search?q=transcriptomics" title=" transcriptomics"> transcriptomics</a> </p> <a href="https://publications.waset.org/abstracts/6275/transcriptomine-the-nuclear-receptor-signaling-transcriptome-database" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6275.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">273</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">354</span> Sulforaphane Attenuates Fibrosis of Dystrophic Muscle in Mdx Mice via Nrf2-Mediated Inhibition of TGF-β/Smad Signaling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chengcao%20Sun">Chengcao Sun</a>, <a href="https://publications.waset.org/abstracts/search?q=Cuili%20Yang"> Cuili Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Shujun%20Li"> Shujun Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Ruilin%20Xue"> Ruilin Xue</a>, <a href="https://publications.waset.org/abstracts/search?q=Yongyong%20Xi"> Yongyong Xi</a>, <a href="https://publications.waset.org/abstracts/search?q=Liang%20Wang"> Liang Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Dejia%20Li"> Dejia Li</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Backgrounds: A few lines of evidence show that Sulforaphane (SFN) has anti-fibrosis effect in liver tissue via Nrf2-mediated inhibition of TGF-β/Smad signaling. However, its effects on muscular dystrophic fibrosis remain unknown. This work was undertaken to evaluate the effects of SFN on fibrosis in dystrophic muscle. Methods: 3-month-old male mdx mice were treated with SFN by gavage (2 mg/kg body weight per day) for 3 months. Gastrocnemius, tibial anterior and triceps brachii muscles were collected for related analysis. Fibrosis in skeletal muscles was analyzed by Sirius red staining. Histology and morphology of skeletal muscles were investigated by H&E staining. Moreover, the expressions of Nrf2, NQO1, HO-1, and TGF-β/Smad signaling pathway were detected by western blot, qRT-PCR, immunohistochemistry and immunofluorescence assays. Results: Our results demonstrated that SFN treatment significantly decreased and improved morphological features in mdx muscles. Moreover, SFN increased the expression of muscle phase II enzymes NQO1 and HO-1 and significantly decreased the expression of TGF-β1，p-smad2, p-smad3, α-SMA, fibronectin, collagen I, PAI-1, and TIMP-1 in Nrf2 dependent manner. Additionally, SFN significantly decreased the expression of CD45 and TNF-α. Conclusions: Collectively, these results show that SFN can ameliorate muscle fibrosis in mdx mice by Nrf2-induced inhibition of TGF-β/Smad signaling pathway, which indicate Nrf2 may be useful for the treatment of muscular dystrophy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sulforaphane" title="sulforaphane">sulforaphane</a>, <a href="https://publications.waset.org/abstracts/search?q=Nrf2" title=" Nrf2"> Nrf2</a>, <a href="https://publications.waset.org/abstracts/search?q=TGF-%CE%B2%2Fsmad%20signaling" title=" TGF-β/smad signaling"> TGF-β/smad signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=duchenne%20muscular%20dystrophy" title=" duchenne muscular dystrophy"> duchenne muscular dystrophy</a>, <a href="https://publications.waset.org/abstracts/search?q=fibrosis" title=" fibrosis"> fibrosis</a> </p> <a href="https://publications.waset.org/abstracts/19674/sulforaphane-attenuates-fibrosis-of-dystrophic-muscle-in-mdx-mice-via-nrf2-mediated-inhibition-of-tgf-vsmad-signaling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19674.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">441</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">353</span> Signaling of Leucine-Rich-Repeat Receptor-Like Kinases in Higher Plants</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Man-Ho%20Oh">Man-Ho Oh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Membrane localized Leucine-Rich-Repeat Receptor-Like Kinases (LRR-RLKs) play crucial roles in plant growth and abiotic/biotic stress responses in higher plants including Arabidopsis and Brassica species. Among several Receptor-Like Kinases (RLKs), Leucine-Rich-Repeat Receptor-Like-Kinases (LRR-RLKs) are the major group of genes that play crucial roles related to growth, development and stress conditions in plant system. Since it is involved in several functional roles, it seems to be very important to investigate their roles in higher plants. We are particularly interested in brassinosteroid (BR) signaling, which is mediated by the BRASSINOSTEROID INSENSITIVE 1 (BRI1) receptor kinase and its co-receptor, BRI1-ASSOCIATED KINASE 1 (BAK1). Autophosphorylation of receptor kinases is recognized to be an important process in activation of signaling in higher plants. Although the plant receptors are generally classified as Ser/Thr protein kinases, many other receptor kinases including BRI1 and BAK1 are shown to autophosphorylate on Tyr residues in addition to Ser/Thr. As an interesting result, we determined that several 14-3-3 regulatory proteins bind to BRI1-CD and are phosphorylated by several receptor kinases in vitro, suggesting that BRI1 is critical for diverse signaling. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=autophosphorylation" title="autophosphorylation">autophosphorylation</a>, <a href="https://publications.waset.org/abstracts/search?q=brassinosteroid" title=" brassinosteroid"> brassinosteroid</a>, <a href="https://publications.waset.org/abstracts/search?q=BRASSINOSTEROID%20INSENSITIVE%201" title=" BRASSINOSTEROID INSENSITIVE 1"> BRASSINOSTEROID INSENSITIVE 1</a>, <a href="https://publications.waset.org/abstracts/search?q=BRI1-ASSOCIATED%20KINASE%201" title=" BRI1-ASSOCIATED KINASE 1"> BRI1-ASSOCIATED KINASE 1</a>, <a href="https://publications.waset.org/abstracts/search?q=Leucine-Rich-Repeat%20Receptor-Like%20Kinases%20%28LRR-RLKs%29" title=" Leucine-Rich-Repeat Receptor-Like Kinases (LRR-RLKs)"> Leucine-Rich-Repeat Receptor-Like Kinases (LRR-RLKs)</a> </p> <a href="https://publications.waset.org/abstracts/76545/signaling-of-leucine-rich-repeat-receptor-like-kinases-in-higher-plants" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/76545.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">224</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">352</span> Hepatocyte-Intrinsic NF-κB Signaling Is Essential to Control a Systemic Viral Infection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sukumar%20Namineni">Sukumar Namineni</a>, <a href="https://publications.waset.org/abstracts/search?q=Tracy%20O%27Connor"> Tracy O'Connor</a>, <a href="https://publications.waset.org/abstracts/search?q=Ulrich%20Kalinke"> Ulrich Kalinke</a>, <a href="https://publications.waset.org/abstracts/search?q=Percy%20Knolle"> Percy Knolle</a>, <a href="https://publications.waset.org/abstracts/search?q=Mathias%20Heikenwaelder"> Mathias Heikenwaelder</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The liver is one of the pivotal organs in vertebrate animals, serving a multitude of functions such as metabolism, detoxification and protein synthesis and including a predominant role in innate immunity. The innate immune mechanisms pertaining to liver in controlling viral infections have largely been attributed to the Kupffer cells, the locally resident macrophages. However, all the cells of liver are equipped with innate immune functions including, in particular, the hepatocytes. Hence, our aim in this study was to elucidate the innate immune contribution of hepatocytes in viral clearance using mice lacking Ikkβ specifically in the hepatocytes, termed IkkβΔᴴᵉᵖ mice. Blockade of Ikkβ activation in IkkβΔᴴᵉᵖ mice affects the downstream signaling of canonical NF-κB signaling by preventing the nuclear translocation of NF-κB, an important step required for the initiation of innate immune responses. Interestingly, infection of IkkβΔᴴᵉᵖ mice with lymphocytic choriomeningitis virus (LCMV) led to strongly increased hepatic viral titers – mainly confined in clusters of infected hepatocytes. This was due to reduced interferon stimulated gene (ISG) expression during the onset of infection and a reduced CD8+ T-cell-mediated response. Decreased ISG production correlated with increased liver LCMV protein and LCMV in isolated hepatocytes from IkkβΔᴴᵉᵖ mice. A similar phenotype was found in LCMV-infected mice lacking interferon signaling in hepatocytes (IFNARΔᴴᵉᵖ) suggesting a link between NFkB and interferon signaling in hepatocytes. We also observed a failure of interferon-mediated inhibition of HBV replication in HepaRG cells treated with NF-kB inhibitors corroborating our initial findings with LCMV infections. Collectively, these results clearly highlight a previously unknown and influential role of hepatocytes in the induction of innate immune responses leading to viral clearance during a systemic viral infection with LCMV-WE. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CD8%2B%20T%20cell%20responses" title="CD8+ T cell responses">CD8+ T cell responses</a>, <a href="https://publications.waset.org/abstracts/search?q=innate%20immune%20mechanisms%20in%20the%20liver" title=" innate immune mechanisms in the liver"> innate immune mechanisms in the liver</a>, <a href="https://publications.waset.org/abstracts/search?q=interferon%20signaling" title=" interferon signaling"> interferon signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=interferon%20stimulated%20genes" title=" interferon stimulated genes"> interferon stimulated genes</a>, <a href="https://publications.waset.org/abstracts/search?q=NF-kB%20signaling" title=" NF-kB signaling"> NF-kB signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=viral%20clearance" title=" viral clearance"> viral clearance</a> </p> <a href="https://publications.waset.org/abstracts/85132/hepatocyte-intrinsic-nf-kb-signaling-is-essential-to-control-a-systemic-viral-infection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85132.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">191</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">351</span> TNF Receptor-Associated Factor 6 (TRAF6) Mediating the Angiotensin-Induced Non-Canonical TGFβ Pathway Activation and Differentiation of c-kit+ Cardiac Stem Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Qing%20Cao">Qing Cao</a>, <a href="https://publications.waset.org/abstracts/search?q=Fei%20Wang"> Fei Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu-Qiang%20Wang"> Yu-Qiang Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Li-Ya%20Huang"> Li-Ya Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Tian-Tian%20Sang"> Tian-Tian Sang</a>, <a href="https://publications.waset.org/abstracts/search?q=Shu-Yan%20Chen"> Shu-Yan Chen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Aims: TNF Receptor-Associated Factor 6 (TRAF6) acts as a multifunctional regulator of the Transforming Growth Factor (TGF)-β signaling pathway, and mediates Smad-independent JNK and p38 activation via TGF-β. This study was performed to test the hypothesis that TGF-β/TRAF6 is essential for angiotensin-II (Ang II)-induced differentiation of rat c-kit+ Cardiac Stem Cells (CSCs). Methods and Results: c-kit+ CSCs were isolated from neonatal Sprague Dawley (SD) rats, and their c-kit status was confirmed with immunofluorescence staining. A TGF-β type I receptor inhibitor (SB431542) or the small interfering RNA (siRNA)-mediated knockdown of TRAF6 were used to investigate the role of TRAF6 in TGF-β signaling. Rescue of TRAF6 siRNA transfected cells with a 3'UTR deleted siRNA insensitive construct was conducted to rule out the off target effects of the siRNA. TRAF6 dominant negative (TRAF6DN) vector was constructed and used to infect c-kit+ CSCs, and western blotting was used to assess the expression of TRAF6, JNK, p38, cardiac-specific proteins, and Wnt signaling proteins. Physical interactions between TRAF6 and TGFβ receptors were studied by coimmunoprecipitation. Cardiac differentiation was suppressed in the absence of TRAF6. Forced expression of TRAF6 enhanced the expression of TGF-β-activated kinase1 (TAK1), and inhibited Wnt signaling. Furthermore, TRAF6 increased the expression of cardiac-specific proteins (cTnT and Cx-43) but inhibited the expression of Wnt3a. Conclusions: Our data suggest that TRAF6 plays an important role in Ang II induced differentiation of c-kit+ CSCs via the non-canonical signaling pathway. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cardiac%20stem%20cells" title="cardiac stem cells">cardiac stem cells</a>, <a href="https://publications.waset.org/abstracts/search?q=differentiation" title=" differentiation"> differentiation</a>, <a href="https://publications.waset.org/abstracts/search?q=TGF-%CE%B2" title=" TGF-β"> TGF-β</a>, <a href="https://publications.waset.org/abstracts/search?q=TRAF6" title=" TRAF6"> TRAF6</a>, <a href="https://publications.waset.org/abstracts/search?q=ubiquitination" title=" ubiquitination"> ubiquitination</a>, <a href="https://publications.waset.org/abstracts/search?q=Wnt" title=" Wnt"> Wnt</a> </p> <a href="https://publications.waset.org/abstracts/10048/tnf-receptor-associated-factor-6-traf6-mediating-the-angiotensin-induced-non-canonical-tgfv-pathway-activation-and-differentiation-of-c-kit-cardiac-stem-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10048.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">401</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">350</span> Metabolomics Profile Recognition for Cancer Diagnostics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Valentina%20L.%20Kouznetsova">Valentina L. Kouznetsova</a>, <a href="https://publications.waset.org/abstracts/search?q=Jonathan%20W.%20Wang"> Jonathan W. Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Igor%20F.%20Tsigelny"> Igor F. Tsigelny</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Metabolomics has become a rising field of research for various diseases, particularly cancer. Increases or decreases in metabolite concentrations in the human body are indicative of various cancers. Further elucidation of metabolic pathways and their significance in cancer research may greatly spur medicinal discovery. We analyzed the metabolomics profiles of lung cancer. Thirty-three metabolites were selected as significant. These metabolites are involved in 37 metabolic pathways delivered by MetaboAnalyst software. The top pathways are glyoxylate and dicarboxylate pathway (its hubs are formic acid and glyoxylic acid) along with Citrate cycle pathway followed by Taurine and hypotaurine pathway (the hubs in the latter are taurine and sulfoacetaldehyde) and Glycine, serine, and threonine pathway (the hubs are glycine and L-serine). We studied interactions of the metabolites with the proteins involved in cancer-related signaling networks, and developed an approach to metabolomics biomarker use in cancer diagnostics. Our analysis showed that a significant part of lung-cancer-related metabolites interacts with main cancer-related signaling pathways present in this network: PI3K–mTOR–AKT pathway, RAS–RAF–ERK1/2 pathway, and NFKB pathway. These results can be employed for use of metabolomics profiles in elucidation of the related cancer proteins signaling networks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cancer" title="cancer">cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolites" title=" metabolites"> metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolic%20pathway" title=" metabolic pathway"> metabolic pathway</a>, <a href="https://publications.waset.org/abstracts/search?q=signaling%20pathway" title=" signaling pathway"> signaling pathway</a> </p> <a href="https://publications.waset.org/abstracts/54096/metabolomics-profile-recognition-for-cancer-diagnostics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54096.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">401</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">349</span> Analysis of Osmotin as Transcription Factor/Cell Signaling Modulator Using Bioinformatic Tools</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Usha%20Kiran">Usha Kiran</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Z.%20Abdin"> M. Z. Abdin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Osmotin is an abundant cationic multifunctional protein discovered in cells of tobacco (Nicotiana tabacum L. var Wisconsin 38) adapted to an environment of low osmotic potential. It provides plants protection from pathogens, hence placed in the PRP family of proteins. The osmotin induced proline accumulation has been reported in plants including transgenic tomato and strawberry conferring tolerance against both biotic and abiotic stresses. The exact mechanism of induction of proline by osmotin is however, not known till date. These observations have led us to hypothesize that osmotin induced proline accumulation could be due to its involvement as transcription factor and/or cell signal pathway modulator in proline biosynthesis. The present investigation was therefore, undertaken to analyze the osmotin protein as transcription factor /cell signalling modulator using bioinformatics tools. The results of available online DNA binding motif search programs revealed that osmotin does not contain DNA-binding motifs. The alignment results of osmotin protein with the protein sequence from DATF showed the homology in the range of 0-20%, suggesting that it might not contain a DNA binding motif. Further to find unique DNA-binding domain, the superimposition of osmotin 3D structure on modeled Arabidopsis transcription factors using Chimera also suggested absence of the same. We, however, found evidence implicating osmotin in cell signaling. With these results, we concluded that osmotin is not a transcription factor but regulating proline biosynthesis and accumulation through cell signaling during abiotic stresses. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=osmotin" title="osmotin">osmotin</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20signaling%20modulator" title=" cell signaling modulator"> cell signaling modulator</a>, <a href="https://publications.waset.org/abstracts/search?q=bioinformatic%20tools" title=" bioinformatic tools"> bioinformatic tools</a>, <a href="https://publications.waset.org/abstracts/search?q=protein" title=" protein "> protein </a> </p> <a href="https://publications.waset.org/abstracts/8485/analysis-of-osmotin-as-transcription-factorcell-signaling-modulator-using-bioinformatic-tools" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8485.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">272</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">348</span> Differential Signaling Spread-Spectrum Modulation of the In-Door LED Visible Light Wireless Communications using Mobile-Phone Camera</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shih-Hao%20Chen">Shih-Hao Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Chi-Wai%20Chow"> Chi-Wai Chow</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Visible light communication combined with spread spectrum modulation is demonstrated in this study. Differential signaling method also ensures the proposed system that can support high immunity to ambient light interference. Experiment result shows the proposed system has 6 dB gain comparing with the original On-Off Keying modulation scheme. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Visible%20Light%20Communication%20%28VLC%29" title="Visible Light Communication (VLC)">Visible Light Communication (VLC)</a>, <a href="https://publications.waset.org/abstracts/search?q=Spread%20Spectrum%20Modulation%20%28SSM%29" title=" Spread Spectrum Modulation (SSM)"> Spread Spectrum Modulation (SSM)</a>, <a href="https://publications.waset.org/abstracts/search?q=On-Off%20Keying" title=" On-Off Keying"> On-Off Keying</a>, <a href="https://publications.waset.org/abstracts/search?q=visible%20light%20communication" title=" visible light communication "> visible light communication </a> </p> <a href="https://publications.waset.org/abstracts/15447/differential-signaling-spread-spectrum-modulation-of-the-in-door-led-visible-light-wireless-communications-using-mobile-phone-camera" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15447.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">522</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">347</span> Characterization of Molecular Targets to Mediate Skin Itch and Inflammation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anita%20J%C3%A4ger">Anita Jäger</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrew%20Salazar"> Andrew Salazar</a>, <a href="https://publications.waset.org/abstracts/search?q=J%C3%B6rg%20von%20Hagen"> Jörg von Hagen</a>, <a href="https://publications.waset.org/abstracts/search?q=Harald%20Kolmar"> Harald Kolmar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the treatment of individuals with sensitive and psoriatic skin, several inflammation and itch-related molecular and cellular targets have been identified, but many of these have yet to be characterized. In this study, we present two potential targets in the skin that can be linked to the inflammation and itch cycle. 11ßHSD1 is the enzyme responsible for converting inactive cortisone to active cortisol used to transmit signals downstream. The activation of the receptor NK1R correlates with promoting inflammation and the perception of itch and pain in the skin. In this study, both targets have been investigated based on their involvement in inflammation. The role of both identified targets was characterized based on the secretion of inflammation cytokine- IL6, IL-8, and CCL2, as well as phosphorylation and signaling pathways. It was found that treating skin cells with molecules able to inhibit inflammatory pathways results in the reduction of inflammatory signaling molecules secreted by skin cells and increases their proliferative capacity. Therefore, these molecular targets and their associated pathways show therapeutic potential and can be mitigated via small molecules. This research can be used for further studies in inflammation and itch pathways and can help to treat pathological symptoms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=inflammation" title="inflammation">inflammation</a>, <a href="https://publications.waset.org/abstracts/search?q=itch" title=" itch"> itch</a>, <a href="https://publications.waset.org/abstracts/search?q=signaling%20pathway" title=" signaling pathway"> signaling pathway</a>, <a href="https://publications.waset.org/abstracts/search?q=skin" title=" skin"> skin</a> </p> <a href="https://publications.waset.org/abstracts/148393/characterization-of-molecular-targets-to-mediate-skin-itch-and-inflammation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148393.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">123</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">346</span> Computational Identification of Signalling Pathways in Protein Interaction Networks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Angela%20U.%20Makolo">Angela U. Makolo</a>, <a href="https://publications.waset.org/abstracts/search?q=Temitayo%20A.%20Olagunju"> Temitayo A. Olagunju</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The knowledge of signaling pathways is central to understanding the biological mechanisms of organisms since it has been identified that in eukaryotic organisms, the number of signaling pathways determines the number of ways the organism will react to external stimuli. Signaling pathways are studied using protein interaction networks constructed from protein-protein interaction data obtained using high throughput experimental procedures. However, these high throughput methods are known to produce very high rates of false positive and negative interactions. In order to construct a useful protein interaction network from this noisy data, computational methods are applied to validate the protein-protein interactions. In this study, a computational technique to identify signaling pathways from a protein interaction network constructed using validated protein-protein interaction data was designed. A weighted interaction graph of the Saccharomyces cerevisiae (Baker’s Yeast) organism using the proteins as the nodes and interactions between them as edges was constructed. The weights were obtained using Bayesian probabilistic network to estimate the posterior probability of interaction between two proteins given the gene expression measurement as biological evidence. Only interactions above a threshold were accepted for the network model. A pathway was formalized as a simple path in the interaction network from a starting protein and an ending protein of interest. We were able to identify some pathway segments, one of which is a segment of the pathway that signals the start of the process of meiosis in S. cerevisiae. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bayesian%20networks" title="Bayesian networks">Bayesian networks</a>, <a href="https://publications.waset.org/abstracts/search?q=protein%20interaction%20networks" title=" protein interaction networks"> protein interaction networks</a>, <a href="https://publications.waset.org/abstracts/search?q=Saccharomyces%20cerevisiae" title=" Saccharomyces cerevisiae"> Saccharomyces cerevisiae</a>, <a href="https://publications.waset.org/abstracts/search?q=signalling%20pathways" title=" signalling pathways"> signalling pathways</a> </p> <a href="https://publications.waset.org/abstracts/22095/computational-identification-of-signalling-pathways-in-protein-interaction-networks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22095.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">544</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">345</span> Photobiomodulation Activates WNT/β-catenin Signaling for Wound Healing in an in Vitro Diabetic Wound Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dimakatso%20B.%20Gumede">Dimakatso B. Gumede</a>, <a href="https://publications.waset.org/abstracts/search?q=Nicolette%20N.%20Houreld"> Nicolette N. Houreld</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Diabetic foot ulcers (DFUs) are a complication of diabetes mellitus (DM), a metabolic disease caused by insulin resistance or insufficiency, resulting in hyperglycaemia and low-grade chronic inflammation. Current therapies for treating DFUs include wound debridement, glycaemic control, and wound dressing. However, these therapies are moderately effective as there is a recurrence of these ulcers and an increased risk of lower limb amputations. Photobiomodulation (PBM), which is the application of non-invasive low-level light for wound healing at the spectrum of 660-1000 nm, has shown great promise in accelerating the healing of chronic wounds. However, its underlying mechanisms are not clearly defined. Studies have indicated that PBM induces wound healing via the activation of signaling pathways that are involved in tissue repair, such as the transforming growth factor-β (TGF-β). However, other signaling pathways, such as the WNT/β-catenin pathway, which is also critical for wound repair, have not been investigated. This study aimed to elucidate if PBM at 660 nm and a fluence of 5 J/cm² activates the WNT/β-catenin signaling pathway for wound healing in a diabetic cellular model. Human dermal fibroblasts (WS1) were continuously cultured high-glucose (26.5 mM D-glucose) environment to create a diabetic cellular model. A central scratch was created in the diabetic model to ‘wound’ the cells. The diabetic wounded (DW) cells were thereafter irradiated at 660 nm and a fluence of 5 J/cm². Cell migration, gene expression and protein assays were conducted at 24- and 48-h post-PBM. The results showed that PBM at 660 nm and a fluence of 5 J/cm² significantly increased cell migration in diabetic wounded cells at 24-h post-PBM. The expression of CTNNB1, ACTA2, COL1A1 and COL3A1 genes was also increased in DW cells post-PBM. Furthermore, there was increased cytoplasmic accumulation and nuclear localization of β-catenin at 24 h post-PBM. The findings in this study demonstrate that PBM activates the WNT/β-catenin signaling pathway by inducing the accumulation of β-catenin in diabetic wounded cells, leading to increased cell migration and expression of wound repair markers. These results thus indicate that PBM has the potential to improve wound healing in diabetic ulcers via activation of the WNT/β-catenin signaling pathway. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wound%20healing" title="wound healing">wound healing</a>, <a href="https://publications.waset.org/abstracts/search?q=diabetic%20ulcers" title=" diabetic ulcers"> diabetic ulcers</a>, <a href="https://publications.waset.org/abstracts/search?q=photobiomodulation" title=" photobiomodulation"> photobiomodulation</a>, <a href="https://publications.waset.org/abstracts/search?q=WNT%2F%CE%B2-catenin" title=" WNT/β-catenin"> WNT/β-catenin</a>, <a href="https://publications.waset.org/abstracts/search?q=signalling%20pathway" title=" signalling pathway"> signalling pathway</a> </p> <a href="https://publications.waset.org/abstracts/188444/photobiomodulation-activates-wntv-catenin-signaling-for-wound-healing-in-an-in-vitro-diabetic-wound-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/188444.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">40</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">344</span> Effect of Oat-Protein Peptide in Cognitive Impairment Mice via Mediating Gut-Brain Axis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamad%20Rafique">Hamad Rafique</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The bioactive peptide RDFPITWPW (RW-9) identified from oat protein has been reported to be positive in memory deficits. However, no clarity on the mechanisms responsible for the neuroprotective effects of RW-9 peptide against AD-like symptoms. Herein, it found that RW-9 intervention showed various improving effects in cognitive-behavioral tests and alleviated oxidative stress and inflammation in the scopolamine-induced mice model. The hippocampus proteomics analysis revealed the upregulation of memory-related proteins, including Grin3a, Ppp2r1b, Stat6, Pik3cd, Slc5a7, Chrm2, mainly involved in cAMP signaling, PI3K-Akt signaling, and JAK-STAT signaling pathways. The administration of RW-9 significantly upregulated the neurotransmitters, including 5-HT, DA, and Arg, in mice brains. Moreover, it regulated the serum metabolic profile and increased the expression levels of ABC transporters, biosynthesis of amino acids, and Amino acyl-tRNA biosynthesis, among others. The 16s-rRNA results illustrated that the RW-9 restored the abundance of Muribaculaceae, Lachnospiraceae, Lactobacillus, Clostridia and Bactericides. Taken together, our results suggest that the RW-9 may prevent the AD-like symptoms via modulation of the gut-serum-brain axis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=oat%20protein" title="oat protein">oat protein</a>, <a href="https://publications.waset.org/abstracts/search?q=active%20peptide" title=" active peptide"> active peptide</a>, <a href="https://publications.waset.org/abstracts/search?q=neuroprotective" title=" neuroprotective"> neuroprotective</a>, <a href="https://publications.waset.org/abstracts/search?q=gut-brain%20axis" title=" gut-brain axis"> gut-brain axis</a> </p> <a href="https://publications.waset.org/abstracts/189320/effect-of-oat-protein-peptide-in-cognitive-impairment-mice-via-mediating-gut-brain-axis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/189320.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">27</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">343</span> Signaling Theory: An Investigation on the Informativeness of Dividends and Earnings Announcements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Faustina%20Masocha">Faustina Masocha</a>, <a href="https://publications.waset.org/abstracts/search?q=Vusani%20Moyo"> Vusani Moyo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> For decades, dividend announcements have been presumed to contain important signals about the future prospects of companies. Similarly, the same has been presumed about management earnings announcements. Despite both dividend and earnings announcements being considered informative, a number of researchers questioned their credibility and found both to contain short-term signals. Pertaining to dividend announcements, some authors argued that although they might contain important information that can result in changes in share prices, which consequently results in the accumulation of abnormal returns, their degree of informativeness is less compared to other signaling tools such as earnings announcements. Yet, this claim in favor has been refuted by other researchers who found the effect of earnings to be transitory and of little value to shareholders as indicated by the little abnormal returns earned during the period surrounding earnings announcements. Considering the above, it is apparent that both dividends and earnings have been hypothesized to have a signaling impact. This prompts one to question which between these two signaling tools is more informative. To answer this question, two follow-up questions were asked. The first question sought to determine the event which results in the most effect on share prices, while the second question focused on the event that influenced trading volume the most. To answer the first question and evaluate the effect that each of these events had on share prices, an event study methodology was employed on a sample made up of the top 10 JSE-listed companies for data collected from 2012 to 2019 to determine if shareholders gained abnormal returns (ARs) during announcement dates. The event that resulted in the most persistent and highest amount of ARs was considered to be more informative. Looking at the second follow-up question, an investigation was conducted to determine if either dividends or earnings announcements influenced trading patterns, resulting in abnormal trading volumes (ATV) around announcement time. The event that resulted in the most ATV was considered more informative. Using an estimation period of 20 days and an event window of 21 days, and hypothesis testing, it was found that announcements pertaining to the increase of earnings resulted in the most ARs, Cumulative Abnormal Returns (CARs) and had a lasting effect in comparison to dividend announcements whose effect lasted until day +3. This solidifies some empirical arguments that the signaling effect of dividends has become diminishing. It was also found that when reported earnings declined in comparison to the previous period, there was an increase in trading volume, resulting in ATV. Although dividend announcements did result in abnormal returns, they were lesser than those acquired during earnings announcements which refutes a number of theoretical and empirical arguments that found dividends to be more informative than earnings announcements. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dividend%20signaling" title="dividend signaling">dividend signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=event%20study%20methodology" title=" event study methodology"> event study methodology</a>, <a href="https://publications.waset.org/abstracts/search?q=information%20content%20of%20earnings" title=" information content of earnings"> information content of earnings</a>, <a href="https://publications.waset.org/abstracts/search?q=signaling%20theory" title=" signaling theory"> signaling theory</a> </p> <a href="https://publications.waset.org/abstracts/134548/signaling-theory-an-investigation-on-the-informativeness-of-dividends-and-earnings-announcements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/134548.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">172</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">342</span> Control of IL-23 Release in Dendritic Cells Protects Mice from Imiquimod-Induced Psoriasis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xingxin%20Wu">Xingxin Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Fenli%20Shao"> Fenli Shao</a>, <a href="https://publications.waset.org/abstracts/search?q=Tao%20Tan"> Tao Tan</a>, <a href="https://publications.waset.org/abstracts/search?q=Yang%20Tan"> Yang Tan</a>, <a href="https://publications.waset.org/abstracts/search?q=Yang%20Sun"> Yang Sun</a>, <a href="https://publications.waset.org/abstracts/search?q=Qiang%20Xu"> Qiang Xu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Psoriasis is a chronic inflammatory skin disease that affects about 2% of the world's population. IL-23 signaling plays a key role in the pathogenesis of psoriasis. Control of IL-23 release by small molecule compounds during developing psoriasis has not been well established. Here, we show that compound 1, a small molecule nature product, protected mice from imiquimod-induced psoriasis with improved skin lesions, reduced skin thickness, and reduced IL-23 mRNA expression in the skin tissue. FACS results showed compound 1 reduced the number of dendritic cells in the skin. Interestingly, compound 1 was not able to ameliorate IL-23-induced psoriasis-like skin inflammation in mice. Further, compound 1 inhibited MyD88-dependent IL-23 mRNA expression induced by LPS, CpG and imiquimod in BMDC cells, but not MyD88-independent CD80 and CD86 expression induced by LPS. The methods included real-time PCR, western blot, H & E staining, FACS and ELISA et al. In conclusion, compound 1 regulates MyD88-dependent signaling to control IL-23 release in dendritic cells, which improves imiquimod-induced psoriasis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dendritic%20cells" title="dendritic cells">dendritic cells</a>, <a href="https://publications.waset.org/abstracts/search?q=IL-23" title=" IL-23"> IL-23</a>, <a href="https://publications.waset.org/abstracts/search?q=toll-like%20receptor%20signaling" title=" toll-like receptor signaling"> toll-like receptor signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=psoriasis" title=" psoriasis"> psoriasis</a> </p> <a href="https://publications.waset.org/abstracts/29061/control-of-il-23-release-in-dendritic-cells-protects-mice-from-imiquimod-induced-psoriasis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29061.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">645</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">341</span> Analog Input Output Buffer Information Specification Modelling Techniques for Single Ended Inter-Integrated Circuit and Differential Low Voltage Differential Signaling I/O Interfaces</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Monika%20Rawat">Monika Rawat</a>, <a href="https://publications.waset.org/abstracts/search?q=Rahul%20Kumar"> Rahul Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Input output Buffer Information Specification (IBIS) models are used for describing the analog behavior of the Input Output (I/O) buffers of a digital device. They are widely used to perform signal integrity analysis. Advantages of using IBIS models include simple structure, IP protection and fast simulation time with reasonable accuracy. As design complexity of driver and receiver increases, capturing exact behavior from transistor level model into IBIS model becomes an essential task to achieve better accuracy. In this paper, an improvement in existing methodology of generating IBIS model for complex I/O interfaces such as Inter-Integrated Circuit (I2C) and Low Voltage Differential Signaling (LVDS) is proposed. Furthermore, the accuracy and computational performance of standard method and proposed approach with respect to SPICE are presented. The investigations will be useful to further improve the accuracy of IBIS models and to enhance their wider acceptance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=IBIS" title="IBIS">IBIS</a>, <a href="https://publications.waset.org/abstracts/search?q=signal%20integrity" title=" signal integrity"> signal integrity</a>, <a href="https://publications.waset.org/abstracts/search?q=open-drain%20buffer" title=" open-drain buffer"> open-drain buffer</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20voltage%20differential%20signaling" title=" low voltage differential signaling"> low voltage differential signaling</a>, <a href="https://publications.waset.org/abstracts/search?q=behavior%20modelling" title=" behavior modelling"> behavior modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=transient%20simulation" title=" transient simulation"> transient simulation</a> </p> <a href="https://publications.waset.org/abstracts/82740/analog-input-output-buffer-information-specification-modelling-techniques-for-single-ended-inter-integrated-circuit-and-differential-low-voltage-differential-signaling-io-interfaces" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82740.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">196</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">340</span> Evaluation of Important Transcription Factors and Kinases in Regulating the Signaling Pathways of Cancer Stem Cells With Low and High Proliferation Rate Derived From Colorectal Cancer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Hossein%20Habibi">Mohammad Hossein Habibi</a>, <a href="https://publications.waset.org/abstracts/search?q=Atena%20Sadat%20Hosseini"> Atena Sadat Hosseini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Colorectal cancer is the third leading cause of cancer-related death in the world. Colorectal cancer screening, early detection, and treatment programs could benefit from the most up-to-date information on the disease's burden, given the present worldwide trend of increasing colorectal cancer incidence. Tumor recurrence and resistance are exacerbated by the presence of chemotherapy-resistant cancer stem cells that can generate rapidly proliferating tumor cells. In addition, tumor cells can evolve chemoresistance through adaptation mechanisms. In this work, we used in silico analysis to select suitable GEO datasets. In this study, we compared slow-growing cancer stem cells with high-growth colorectal cancer-derived cancer stem cells. We then evaluated the signal pathways, transcription factors, and kinases associated with these two types of cancer stem cells. A total of 980 upregulated genes and 870 downregulated genes were clustered. MAPK signaling pathway, AGE-RAGE signaling pathway in diabetic complications, Fc gamma R-mediated phagocytosis, and Steroid biosynthesis signaling pathways were observed in upregulated genes. Also, caffeine metabolism, amino sugar and nucleotide sugar metabolism, TNF signaling pathway, and cytosolic DNA-sensing pathway were involved in downregulated genes. In the next step, we evaluated the best transcription factors and kinases in two types of cancer stem cells. In this regard, NR2F2, ZEB2, HEY1, and HDGF as transcription factors and PRDM5, SMAD, CBP, and KDM2B as critical kinases in upregulated genes. On the other hand, IRF1, SPDEF, NCOA1, and STAT1 transcription factors and CTNNB1 and CDH7 kinases were regulated low expression genes. Using bioinformatics analysis in the present study, we conducted an in-depth study of colorectal cancer stem cells at low and high growth rates so that we could take further steps to detect and even target these cells. Naturally, more additional tests are needed in this direction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=colorectal%20cancer" title="colorectal cancer">colorectal cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=bioinformatics%20analysis" title=" bioinformatics analysis"> bioinformatics analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=transcription%20factor" title=" transcription factor"> transcription factor</a>, <a href="https://publications.waset.org/abstracts/search?q=kinases" title=" kinases"> kinases</a>, <a href="https://publications.waset.org/abstracts/search?q=cancer%20stem%20cells" title=" cancer stem cells"> cancer stem cells</a> </p> <a href="https://publications.waset.org/abstracts/149949/evaluation-of-important-transcription-factors-and-kinases-in-regulating-the-signaling-pathways-of-cancer-stem-cells-with-low-and-high-proliferation-rate-derived-from-colorectal-cancer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149949.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">126</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">339</span> Inhibitory Effects of PPARγ Ligand, KR-62980, on Collagen-Stimulated Platelet Activation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Su%20Bin%20Wang">Su Bin Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jin%20Hee%20Ahn"> Jin Hee Ahn</a>, <a href="https://publications.waset.org/abstracts/search?q=Tong-Shin%20Chang"> Tong-Shin Chang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The peroxisome proliferator-activated receptors (PPARs) are member of nuclear receptor superfamily that act as a ligand-activated transcription factors. Although platelets lack a nucleus, previous studies have shown that PPARγ agonists, rosiglitazone, inhibited platelet activation induced by collagen. In this study, we investigated the inhibitory effects of KR-62980, a newly synthesized PPARγ agonist, on collagen receptor-stimulated platelet activation. The specific tyrosine phosphorylations of key components (Syk, Vav1, Btk and PLCγ2) for collagen receptor signaling pathways were suppressed by KR-62980. KR-62980 also attenuated downstream responses including cytosolic calcium elevation, P-selectin surface exposure, and integrin αIIbβ3 activation. PPARγ was found to associate with multiple proteins within the LAT signaling complex in collagen-stimulated platelets. This association was prevented by KR-62980, indicating a potential mechanism for PPARγ function in collagen-stimulated platelet activation. Furthermore, KR-62980 inhibited platelet aggregation and adhesion in response to collagen in vitro and prolonged in vivo thrombotic response in carotid arteries of mice. Collectively, these data suggest that KR-62980 inhibits collagen-stimulated platelet activation and thrombus formation through modulating the collagen receptor signaling pathways. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=KR-62980" title="KR-62980">KR-62980</a>, <a href="https://publications.waset.org/abstracts/search?q=PPAR%CE%B3" title=" PPARγ"> PPARγ</a>, <a href="https://publications.waset.org/abstracts/search?q=antiplatelet" title=" antiplatelet"> antiplatelet</a>, <a href="https://publications.waset.org/abstracts/search?q=thrombosis" title=" thrombosis"> thrombosis</a> </p> <a href="https://publications.waset.org/abstracts/47842/inhibitory-effects-of-ppargh-ligand-kr-62980-on-collagen-stimulated-platelet-activation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47842.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">334</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=signaling&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=signaling&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=signaling&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=signaling&page=5">5</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=signaling&page=6">6</a></li> <li class="page-item"><a class="page-link" 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