Development of a bioluminescent homogenous nanobody-based immunoassay for the detection of prostate-specific antigen (PSA)

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At present, the diagnosis and screening of prostate cancer rely on the essential biomarker known as prostate-specific antigen (PSA). The main purpose of this study was to develop a novel immunoassay for the detection of PSA based on a tri-part spl …"><meta name="keywords" content="pmid:38944901, doi:10.1016/j.enzmictec.2024.110474, Mahmoud Esraa Baghdadi, Rahman Emamzadeh, Elisa Michelini, Enzyme-Linked Immunosorbent Assay / methods, Humans, Immunoassay / methods, Limit of Detection, Luciferases / genetics, Luciferases / metabolism, Luminescent Measurements* / methods, Male, Prostate-Specific Antigen* / immunology, Prostatic Neoplasms* / diagnosis, Prostatic Neoplasms* / immunology, Single-Domain Antibodies* / immunology, PubMed Abstract, NIH, NLM, NCBI, National Institutes of Health, National Center for Biotechnology Information, National Library of Medicine, MEDLINE"><meta name="robots" content="index,nofollow,noarchive"><meta property="og:title" content="Development of a bioluminescent homogenous nanobody-based immunoassay for the detection of prostate-specific antigen (PSA) - PubMed"><meta property="og:url" content="https://pubmed.ncbi.nlm.nih.gov/38944901/"><meta property="og:description" content="Prostate cancer is the most prevalent cancer in men. 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At present, the diagnosis and screening of prostate cancer rely on the essential biomarker known as prostate-specific antigen (PSA). The main purpose of this study was to develop a novel immunoassay for the detection of PSA based on a tri-part spl …"><meta name="twitter:image" content="https://cdn.ncbi.nlm.nih.gov/pubmed/persistent/pubmed-meta-image-v2.jpg">  <link rel="search" type="application/opensearchdescription+xml" href="https://cdn.ncbi.nlm.nih.gov/pubmed/persistent/opensearch.xml" title="PubMed search">  <noscript> <link rel="stylesheet" type="text/css" href="https://cdn.ncbi.nlm.nih.gov/pubmed/ed1a5a1f-b279-475e-88e3-75f261729818/core/no-script.css"> </noscript> <meta name="citation_title" content="Development of a bioluminescent homogenous nanobody-based immunoassay for the detection of prostate-specific antigen (PSA)"> <meta name="citation_authors" content="Baghdadi ME;Emamzadeh R;Nazari M;Michelini E;"> <meta name="citation_date" content="2024 Oct"> <meta name="citation_publisher" content="Enzyme Microb Technol"> <meta name="citation_journal_title" content="Enzyme and microbial technology"> <meta name="citation_pmid" content="38944901"> <meta name="citation_abstract_html_url" content="https://pubmed.ncbi.nlm.nih.gov/38944901/"> <meta name="citation_volume" content="180"> <meta name="citation_doi" content="10.1016/j.enzmictec.2024.110474"> <meta name="citation_issn" content="1879-0909"> <link rel="canonical" href="https://pubmed.ncbi.nlm.nih.gov/38944901/" /> </head> <body > <noscript> <div class="no-script-banner" id="no-script-banner"> <div class="warning-message"> <div class="warning-message-text"> This site needs JavaScript to work properly. 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usa-input-error-message selection-validation-message"> Name must be less than 100 characters </div> </div> <div class="action-panel-control-wrap existing-collections-controls"> <label for="collections-action-panel-add-to-existing" class="action-panel-label"> Choose a collection: </label> <select id="collections-action-panel-add-to-existing" class="action-panel-selector collections-action-add-to-existing" data-ga-category="save_share" data-ga-action="select_collection" data-ga-label="($('#collections-action-add-to-existing').val() === 'Favorites') ? 'Favorites' : 'non_favorites_collection'"> </select> <div class="collections-retry-load-on-error usa-input-error-message selection-validation-message"> Unable to load your collection due to an error<br> <a href="#">Please try again</a> </div> </div> </div> <div class="action-panel-actions"> <button class="action-panel-submit" type="submit" data-loading-label="Adding..." data-pinger-ignore data-ga-category="save_share" data-ga-action="collections" data-ga-label="add"> Add </button> <button class="action-panel-cancel" aria-label="Close 'Add to Collections' panel" ref="linksrc=close_collections_panel" aria-controls="collections-action-panel" aria-expanded="false" data-ga-category="save_share" data-ga-action="collections" data-ga-label="cancel"> Cancel </button> </div> </form> </div> </div> <div id="bibliography-action-panel" class="bibliography-action-panel action-panel in-progress-dots-panel" aria-hidden="true" data-bibliography-open-panel-enabled="false" data-bibliography-open-panel-url-hash="#open-bibliography-panel"> <div class="inner-wrap"> <h3 class="action-panel-heading"> Add to My Bibliography </h3> <form id="bibliography-action-panel-form" class="bibliography-action-panel-form action-panel-content action-form action-panel-smaller-selectors" data-add-to-bibliography-max-amount="100" data-add-to-bibliography-batch-size="10" data-bibliography-delegates-url="/list-bibliography-delegates/" data-add-to-bibliography-url="/add-to-bibliography/" data-get-article-ids-by-search-url="/get-article-ids-by-search/" data-mybib-root-url="https://www.ncbi.nlm.nih.gov/myncbi/collections/mybibliography/"> <input type="hidden" name="csrfmiddlewaretoken" value="iEZdIoIstWbpNyqs2erlvoJsnq6MeNDlqGNpI70vhoOrr6FjWn0oRu5AUE9J17Ux"> <div class="action-panel-control-wrap bibliographies-controls"> <div class="choice-group"> <ul class="bibliographies-action-add radio-group-items"> <li> <input name="bibliography" id="my-bibliography" class="my-bibliography" type="radio" checked/> <label for="my-bibliography">My Bibliography</label> </li> </ul> </div> </div> <div class="bibliographies-retry-load-on-error usa-input-error-message selection-validation-message"> Unable to load your delegates due to an error<br> <a href="#">Please try again</a> </div> <div class="action-panel-actions"> <button class="action-panel-submit" type="submit" data-loading-label="Adding..." data-pinger-ignore> Add </button> <button class="action-panel-cancel" aria-label="Close 'Add to bibliography' panel" ref="linksrc=close_bibliography_panel" aria-controls="bibliography-action-panel" aria-expanded="false" data-ga-category="save_share" data-ga-action="mybib" data-ga-label="cancel"> Cancel </button> </div> </form> </div> </div> <div id="saved-search-action-panel" class="saved-search-action-panel action-panel " aria-hidden="true" data-saved-search-open-panel-enabled="false" data-saved-search-open-panel-url-hash="#open-saved-search-panel"> <div class="inner-wrap"> <h2 class="action-panel-heading"> Your saved search </h2> <form id="saved-search-action-panel-form" class="saved-search-action-panel-form action-panel-content action-form" data-create-saved-search-url="/create-saved-search/" data-try-search-terms-url="/try-search-term/" data-saved-search-root-url="https://www.ncbi.nlm.nih.gov/myncbi/searches/"> <input type="hidden" name="csrfmiddlewaretoken" value="iEZdIoIstWbpNyqs2erlvoJsnq6MeNDlqGNpI70vhoOrr6FjWn0oRu5AUE9J17Ux"> <div class="action-panel-control-wrap"> <label for="saved-search-name" class="action-panel-label saved-search-name-label required-field-asterisk"> Name of saved search: </label> <input maxlength="200" type="text" name="saved-search-name" id="saved-search-name" class="saved-search-name" value="" required pattern="[^"&=<>\/]*" title="The following characters are not allowed in the Name field: "&=<>/"> </div> <div class="action-panel-control-wrap"> <label for="saved-search-term" class="action-panel-label required-field-asterisk"> Search terms: </label> <textarea name="saved-search-term" id="saved-search-term" class="saved-search-term" required></textarea> </div> <div class="test-search-term-wrap"> <a href="#" class="try-search-term">Test search terms</a> </div> <div class="choice-group action-panel-extra-margin-top"> <span class="action-panel-label" id="fieldset-label"> Would you like email updates of new search results? </span> <fieldset id="saved-search-alert" aria-describedby="fieldset-label"> <legend class="usa-sr-only">Saved Search Alert Radio Buttons</legend> <ul class="radio-group-items"> <li> <input type="radio" id="saved-search-alert-yes" class="saved-search-alert-yes" name="saved-search-alert" value="yes" checked> <label for="saved-search-alert-yes" class="action-panel-label">Yes</label> </li> <li> <input aria-label="No radio input" type="radio" id="saved-search-alert-no" class="saved-search-alert-no" name="saved-search-alert" value="no"> <label for="saved-search-alert-no" class="action-panel-label">No</label> </li> </ul> </fieldset> </div> <div class="alert-schedule-wrap"> <div class="action-panel-control-wrap"> <label class="action-panel-label"> Email: </label> <span aria-label="Email address" id="saved-search-email" class="action-panel-label"><span class="action-panel-label-bold"></span> (<a class="myncbi-account-settings" href="https://www.ncbi.nlm.nih.gov/account/settings/">change</a>)</span> </div> <div class="action-panel-control-wrap action-panel-extra-margin-top"> <label for="saved-search-frequency" class="action-panel-label"> Frequency: </label> <select id="saved-search-frequency" class="no-border-panel-selector saved-search-frequency"> <option value="monthly">Monthly</option> <option value="weekly">Weekly</option> <option value="daily">Daily</option> </select> </div> <div class="action-panel-control-wrap saved-search-monthly-additional"> <label for="saved-search-monthly-on-day" class="action-panel-label"> Which day? </label> <select id="saved-search-monthly-on-day" class="no-border-panel-selector"> <option value="Sunday">The first Sunday</option> <option value="Monday">The first Monday</option> <option value="Tuesday">The first Tuesday</option> <option value="Wednesday">The first Wednesday</option> <option value="Thursday">The first Thursday</option> <option value="Friday">The first Friday</option> <option value="Saturday">The first Saturday</option> <option value="day">The first day</option> <option value="weekday">The first weekday</option> </select> </div> <div class="action-panel-control-wrap saved-search-weekly-additional"> <label for="saved-search-weekly-on-day" class="action-panel-label"> Which day? </label> <select id="saved-search-weekly-on-day" class="no-border-panel-selector saved-search-weekly-on-day"> <option value="Sunday">Sunday</option> <option value="Monday">Monday</option> <option value="Tuesday">Tuesday</option> <option value="Wednesday">Wednesday</option> <option value="Thursday">Thursday</option> <option value="Friday">Friday</option> <option value="Saturday">Saturday</option> </select> </div> <div class="action-panel-control-wrap"> <label for="saved-search-report" class="action-panel-label"> Report format: </label> <select id="saved-search-report" class="no-border-panel-selector saved-search-report"> <option value="DocSum">Summary</option> <option value="DocSumText">Summary (text)</option> <option value="Abstract">Abstract</option> <option value="AbstractText">Abstract (text)</option> <option value="MEDLINE">PubMed</option> </select> </div> <div class="action-panel-control-wrap"> <label for="saved-search-amount" class="action-panel-label"> Send at most: </label> <select id="saved-search-amount" class="no-border-panel-selector saved-search-amount"> <option value="1">1 item</option> <option value="5" selected>5 items</option> <option value="10">10 items</option> <option value="20">20 items</option> <option value="50">50 items</option> <option value="100">100 items</option> <option value="200">200 items</option> </select> </div> <div> <input type="checkbox" id="saved-search-send-if-no-result" class="saved-search-send-if-no-result" name="saved-search-send-if-no-result"> <label for="saved-search-send-if-no-result" class="action-panel-label smaller-checkbox"> Send even when there aren't any new results </label> </div> <div class="action-panel-control-wrap option-text-in-email-wrap"> <label for="saved-search-email-text" class="action-panel-label"> Optional text in email: </label> <textarea name="saved-search-email-text" id="saved-search-email-text" class="saved-search-email-text"></textarea> </div> </div> <div class="action-panel-actions"> <button class="action-panel-submit" type="submit" data-loading-label="Saving..." data-ga-category="save_share" data-ga-action="alert" data-ga-label="save"> Save </button> <button class="action-panel-cancel" aria-label="Close 'Your saved search' panel" ref="linksrc=close_saved_search_panel" aria-controls="saved-search-action-panel" aria-expanded="false" data-ga-category="save_share" data-ga-action="alert" data-ga-label="cancel"> Cancel </button> </div> </form> </div> </div> <div id="citation-manager-action-panel" class="citation-manager-action-panel action-panel" aria-hidden="true"> <div class="inner-wrap"> <h2 class="action-panel-heading"> Create a file for external citation management software </h2> <form id="citation-manager-action-panel-form" class="action-panel-content action-form" action="/results-export-ids/" data-by-search-action="/results-export-search-data/" data-by-ids-action="/results-export-ids/" method="post" data-by-search-method="post" data-by-ids-method="post"> <input type="hidden" name="csrfmiddlewaretoken" value="iEZdIoIstWbpNyqs2erlvoJsnq6MeNDlqGNpI70vhoOrr6FjWn0oRu5AUE9J17Ux"> <input name="results-format" type="hidden" value="pubmed"/> <div class="action-panel-actions"> <button class="action-panel-submit" type="submit" data-loading-label="Sending..." data-ga-category="save_share" data-ga-action="citation_manager" data-ga-label="save"> Create file </button> <button class="action-panel-cancel" aria-label="Close 'Send citations to citation manager' panel" ref="linksrc=close_citation_manager_panel" aria-controls="citation-manager-action-panel" aria-expanded="false" data-ga-category="save_share" data-ga-action="citation_manager" data-ga-label="cancel"> Cancel </button> </div> </form> </div> </div> <div id="rss-action-panel" class="rss-action-panel action-panel " aria-hidden="true"> <div class="inner-wrap"> <h2 class="action-panel-heading"> Your RSS Feed </h2> <form id="rss-action-panel-form" class="rss-action-panel-form action-panel-content action-form" data-create-rss-feed-url="/create-rss-feed-url/" data-search-form-term-value=""> <input type="hidden" name="csrfmiddlewaretoken" value="iEZdIoIstWbpNyqs2erlvoJsnq6MeNDlqGNpI70vhoOrr6FjWn0oRu5AUE9J17Ux"> <div class="action-panel-control-wrap"> <label for="rss-name" class="action-panel-label required-field-asterisk"> Name of RSS Feed: </label> <input maxlength="200" placeholder="Name" type="text" name="rss-name" id="rss-name" class="rss-name" value='' required pattern="[^"&=<>\/]*" title="The following characters are not allowed in the Name field: "&=<>/"> </div> <div class="rss-limit-wrap"> <div class="action-panel-control-wrap action-panel-extra-margin-top"> <label for="rss-limit" class="action-panel-label"> Number of items displayed: </label> <select id="rss-limit" class="no-border-panel-selector rss-limit"> <option value="5">5</option> <option value="10">10</option> <option value="15" selected="selected">15</option> <option value="20">20</option> <option value="50">50</option> <option value="100">100</option> </select> </div> </div> <div class="action-panel-actions"> <button class="action-panel-submit" type="submit" data-loading-label="Creating..." data-ga-category="save_share" data-ga-action="alert" data-ga-label="save"> Create RSS </button> <button class="action-panel-cancel" aria-label="Close 'Your RSS' panel" ref="linksrc=close_rss_panel" aria-controls="rss-action-panel" aria-expanded="false" data-ga-category="save_share" data-ga-action="alert" data-ga-label="cancel"> Cancel </button> </div> <div class="action-panel-control-wrap rss-link-copy-wrap"> <label for="rss-link" class="usa-sr-only">RSS Link</label> <input placeholder="Your RSS Feed Link" type="text" name="rss-link" id="rss-link" class="rss-link" title="RSS Link"> <button type="button" disabled class="rss-link-copy-button disabled" data-ga-category="save_share" data-ga-action="rss" data-ga-label="copy"> Copy </button> </div> </form> </div> </div> </div> </div> <div class="article-page" id="article-page" data-article-pmid="38944901"> <aside class="page-sidebar"> <div class="inner-wrap"> <div class="full-text-links"> <div class="full-view"> <h3 class="title"> Full text links </h3> <div class="full-text-links-list"> <a class="link-item dialog-focus" href="https://linkinghub.elsevier.com/retrieve/pii/S0141-0229(24)00081-4" target="_blank" rel="noopener" ref="linksrc=fulltextorjournal_fulltext&is_pmc=False&PrId=3048&itool=Abstract-def&log$=linkouticon&uid=38944901&db=pubmed&nlmid=8003761" title="See full text options at Elsevier Science" data-ga-category="full_text" data-ga-action="Elsevier Science" data-ga-label="38944901" ><img src="https://cdn.ncbi.nlm.nih.gov/corehtml/query/egifs/https:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif" alt="full text provider logo"><span class="text"> Elsevier Science </span></a> </div> </div> <div class="short-view"> <a href="#" class="full-text-links-button full-text-links-dialog-trigger"> Full text links </a> </div> </div> <div class="actions-buttons sidebar"><h3 class="title">Actions</h3><div class="inner-wrap"><button class="citation-button citation-dialog-trigger" aria-label="Open dialog with citation text in different styles" data-ga-category="save_share" data-ga-action="cite" data-ga-label="open" data-all-citations-url="/38944901/citations/" data-citation-style="nlm" data-pubmed-format-link="/38944901/export/"><span class="button-label">Cite</span></button><link type="text/css" href="ncbi-overlay-block/src/overlay-block.css"><div class="collections-button-container" data-article-id="38944901" data-article-db="pubmed"><button class="collections-button collections-dialog-trigger" aria-label="Save article in MyNCBI collections." data-ga-category="collections_button" data-ga-action="click" data-ga-label="collections_button" data-collections-open-dialog-enabled="false" data-collections-open-dialog-url="https://account.ncbi.nlm.nih.gov/?back_url=https%3A%2F%2Fpubmed.ncbi.nlm.nih.gov%2F38944901%2F%23open-collections-dialog" data-in-collections="false"><span class="button-label">Collections</span></button><div class="overlay" role="dialog"><div id="collections-action-dialog" class="dialog collections-dialog" aria-hidden="true"><div class="title">Add to Collections</div><div class="collections-action-panel action-panel"><form id="collections-action-dialog-form" class="collections-action-panel-form action-panel-content action-form action-panel-smaller-selectors" data-existing-collections-url="/list-existing-collections/" data-add-to-existing-collection-url="/add-to-existing-collection/" data-create-and-add-to-new-collection-url="/create-and-add-to-new-collection/" data-myncbi-max-collection-name-length="100" data-collections-root-url="https://www.ncbi.nlm.nih.gov/myncbi/collections/"><input type="hidden" name="csrfmiddlewaretoken" value="iEZdIoIstWbpNyqs2erlvoJsnq6MeNDlqGNpI70vhoOrr6FjWn0oRu5AUE9J17Ux"><div class="choice-group" role="radiogroup"><ul class="radio-group-items"><li><input type="radio" id="collections-action-dialog-new" class="collections-new" name="collections" value="new" data-ga-category="collections_button" data-ga-action="click" data-ga-label="collections_radio_new"><label for="collections-action-dialog-new">Create a new collection</label></li><li><input type="radio" id="collections-action-dialog-existing" class="collections-existing" name="collections" value="existing" checked="true" data-ga-category="collections_button" data-ga-action="click" data-ga-label="collections_radio_existing"><label for="collections-action-dialog-existing">Add to an existing collection</label></li></ul></div><div class="controls-wrapper"><div class="action-panel-control-wrap new-collections-controls"><label for="collections-action-dialog-add-to-new" class="action-panel-label required-field-asterisk"> Name your collection: </label><input type="text" name="add-to-new-collection" id="collections-action-dialog-add-to-new" class="collections-action-add-to-new" pattern="[^"&=<>\/]*" title="The following characters are not allowed in the Name field: "&=<>/" maxlength="100" data-ga-category="collections_button" data-ga-action="create_collection" data-ga-label="non_favorties_collection"><div class="collections-new-name-too-long 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Electronic address: r.emamzadeh@sci.ui.ac.ir." href="#full-view-affiliation-2" ref="linksrc=author_aff"> 2 </a></sup><span class="comma">, </span></span><span class="authors-list-item "><a class="full-name" href="/?term=Nazari+M&cauthor_id=38944901" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Mahboobeh Nazari">Mahboobeh Nazari</a><sup class="affiliation-links"><span class="author-sup-separator"> </span><a class="affiliation-link" title="Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran." href="#full-view-affiliation-3" ref="linksrc=author_aff"> 3 </a></sup><span class="comma">, </span></span><span class="authors-list-item "><a class="full-name" href="/?term=Michelini+E&cauthor_id=38944901" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Elisa Michelini">Elisa Michelini</a><sup class="affiliation-links"><span class="author-sup-separator"> </span><a class="affiliation-link" title="Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Selmi 2, Bologna 40126, Italy." href="#full-view-affiliation-4" ref="linksrc=author_aff"> 4 </a></sup></span> </div> </div> </div> <div class="short-article-details"> Affiliations <button class="more-details" id="toggle-authors" data-alt-text="Collapse" aria-controls="expanded-authors" aria-expanded="false" data-pinger-ignore data-fetch-url="/38944901/long-authors/" data-id-prefix=""> <span class="title"> Expand </span> </button> </div> <div class="extended-article-details" id="expanded-authors" aria-hidden="true"> <div class="expanded-authors" id="full-view-expanded-authors"> <div class="affiliations"> <h3 class="title"> Affiliations </h3> <ul class="item-list"> <li data-affiliation-id="full-view-affiliation-1" id="full-view-affiliation-1" ><sup class="key">1</sup> Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.</li> <li data-affiliation-id="full-view-affiliation-2" id="full-view-affiliation-2" ><sup class="key">2</sup> Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran. Electronic address: r.emamzadeh@sci.ui.ac.ir.</li> <li data-affiliation-id="full-view-affiliation-3" id="full-view-affiliation-3" ><sup class="key">3</sup> Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.</li> <li data-affiliation-id="full-view-affiliation-4" id="full-view-affiliation-4" ><sup class="key">4</sup> Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Selmi 2, Bologna 40126, Italy.</li> </ul> </div> </div> </div> <ul class="identifiers" id="full-view-identifiers"> <li> <span class="identifier pubmed"> <span class="id-label"> PMID: </span> <strong class="current-id" title="PubMed ID">38944901</strong> </span> </li> <li> <span class="identifier doi"> <span class="id-label"> DOI: </span> <a class="id-link" target="_blank" rel="noopener" ref="linksrc=article_id_link&article_id=10.1016/j.enzmictec.2024.110474&id_type=DOI" href="https://doi.org/10.1016/j.enzmictec.2024.110474" data-ga-category="full_text" data-ga-action="DOI" > 10.1016/j.enzmictec.2024.110474 </a> </span> </li> </ul> <div class="in-clipboard-label " hidden> Item in Clipboard </div> </div> <div class="short-view" id="short-view-heading"> <h1 class="heading-title"> Development of a bioluminescent homogenous nanobody-based immunoassay for the detection of prostate-specific antigen (PSA) </h1> <div class="short-citation"> <span class="authors-list"> <span class="authors-list-item "><span class="full-name">Mahmoud Esraa Baghdadi</span><span class="citation-separator"> et al.</span></span> </span> <span class="citation-journal"> Enzyme Microb Technol<span class="citation-separator">.</span> </span> <span class="date"> <span class="citation-year">2024 Oct</span><span class="citation-separator">.</span> </span> </div> <div class="more-article-details-section with-display-settings"> <button class="more-article-details" id="toggle-article-details" data-alt-text="Hide details" 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data-href="/?term=%22Enzyme+Microb+Technol%22%5Bjour%5D&sort=date&sort_order=desc" ref="linksrc=search_in_pubmed_journal_name_link&journal_abbrev=Enzyme Microb Technol" data-ga-category="search" data-ga-action="journal_link" data-ga-label="Enzyme Microb Technol"> Search in PubMed </a></li><li><a class="search-in-nlm-catalog-link dropdown-block-link" ref ="linksrc=search_in_nlm_catalog_link" href="https://www.ncbi.nlm.nih.gov/nlmcatalog?term=%22Enzyme+Microb+Technol%22%5BTitle+Abbreviation%5D" data-ga-category="search_catalog" data-ga-action="journal_link" data-ga-label="Enzyme Microb Technol"> Search in NLM Catalog </a></li><li><a class="add-to-search-link dropdown-block-link" ref ="linksrc=add_to_search_link" role="button" data-search-term='"Enzyme Microb Technol"[jour]' data-ga-category="search" data-ga-action="add_to_search" data-ga-label='"Enzyme Microb Technol"[jour]' href="#"> Add to Search </a></li></ul></div></div></div><span class="period">. </span><span class="cit">2024 Oct:180:110474.</span> </div> <span class="citation-doi"> doi: 10.1016/j.enzmictec.2024.110474. </span> <span class="secondary-date"> Epub 2024 Jun 25. </span> </div> <div class="expanded-authors" id="short-view-expanded-authors"> <div class="authors"> <h3 class="title"> Authors </h3> <div class="authors-list"> <span class="authors-list-item "><a class="full-name" href="/?term=Baghdadi+ME&cauthor_id=38944901" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Mahmoud Esraa Baghdadi">Mahmoud Esraa Baghdadi</a><sup class="affiliation-links"><span class="author-sup-separator"> </span><a class="affiliation-link" title="Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran." href="#short-view-affiliation-1" ref="linksrc=author_aff"> 1 </a></sup><span class="comma">, </span></span><span class="authors-list-item "><a class="full-name" href="/?term=Emamzadeh+R&cauthor_id=38944901" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Rahman Emamzadeh">Rahman Emamzadeh</a><sup class="affiliation-links"><span class="author-sup-separator"> </span><a class="affiliation-link" title="Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran. Electronic address: r.emamzadeh@sci.ui.ac.ir." href="#short-view-affiliation-2" ref="linksrc=author_aff"> 2 </a></sup><span class="comma">, </span></span><span class="authors-list-item "><a class="full-name" href="/?term=Nazari+M&cauthor_id=38944901" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Mahboobeh Nazari">Mahboobeh Nazari</a><sup class="affiliation-links"><span class="author-sup-separator"> </span><a class="affiliation-link" title="Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran." href="#short-view-affiliation-3" ref="linksrc=author_aff"> 3 </a></sup><span class="comma">, </span></span><span class="authors-list-item "><a class="full-name" href="/?term=Michelini+E&cauthor_id=38944901" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Elisa Michelini">Elisa Michelini</a><sup class="affiliation-links"><span class="author-sup-separator"> </span><a class="affiliation-link" title="Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Selmi 2, Bologna 40126, Italy." href="#short-view-affiliation-4" ref="linksrc=author_aff"> 4 </a></sup></span> </div> </div> <div class="affiliations"> <h3 class="title"> Affiliations </h3> <ul class="item-list"> <li data-affiliation-id="short-view-affiliation-1" id="short-view-affiliation-1" ><sup class="key">1</sup> Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.</li> <li data-affiliation-id="short-view-affiliation-2" id="short-view-affiliation-2" ><sup class="key">2</sup> Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran. Electronic address: r.emamzadeh@sci.ui.ac.ir.</li> <li data-affiliation-id="short-view-affiliation-3" id="short-view-affiliation-3" ><sup class="key">3</sup> Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.</li> <li data-affiliation-id="short-view-affiliation-4" id="short-view-affiliation-4" ><sup class="key">4</sup> Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Selmi 2, Bologna 40126, Italy.</li> </ul> </div> </div> <ul class="identifiers" id="short-view-identifiers"> <li> <span class="identifier pubmed"> <span class="id-label"> PMID: </span> <strong class="current-id" title="PubMed ID">38944901</strong> </span> </li> <li> <span class="identifier doi"> <span class="id-label"> DOI: </span> <a class="id-link" target="_blank" rel="noopener" ref="linksrc=article_id_link&article_id=10.1016/j.enzmictec.2024.110474&id_type=DOI" href="https://doi.org/10.1016/j.enzmictec.2024.110474" data-ga-category="full_text" data-ga-action="DOI" > 10.1016/j.enzmictec.2024.110474 </a> </span> </li> </ul> <div class="in-clipboard-label " hidden> Item in Clipboard </div> </div> </div> </header> <div class="actions-buttons inline"><div class="inner-wrap"><button class="full-text-links-button full-text-links-dialog-trigger" title="Open dialog with full text links" ref="linksrc=full_text_links"> Full text links </button><button class="citation-button citation-dialog-trigger" aria-label="Open dialog with citation text in different styles" data-ga-category="save_share" data-ga-action="cite" data-ga-label="open" data-all-citations-url="/38944901/citations/" data-citation-style="nlm" data-pubmed-format-link="/38944901/export/"><span class="button-label">Cite</span></button><button class="more-actions-button more-actions-dialog-trigger" title="Open dialog with more actions to take" ref="linksrc=more_actions_btn"></button><div class="display-options" data-format-key="format" data-default-format-value="abstract" data-current-format-value="abstract" role="region"><button class="trigger usa-button" title="Change format" data-ga-category="display_options" data-ga-action="display_options_dialog"><span class="button-label">Display options</span></button><div class="dropdown" hidden><div class="title"> Display options </div><div class="content"><div class="format-container"><span class="option-label"> Format </span><select name="format" data-initial-value="abstract" aria-label="Display format" id="inline-actions-display-format"><option value="abstract">Abstract</option><option value="pubmed">PubMed</option><option value="pmid">PMID</option></select></div></div></div></div></div></div> <div class="abstract" id="abstract"> <h2 class="title"> Abstract </h2> <div class="abstract-content selected" id="eng-abstract"> <p> Prostate cancer is the most prevalent cancer in men. At present, the diagnosis and screening of prostate cancer rely on the essential biomarker known as prostate-specific antigen (PSA). The main purpose of this study was to develop a novel immunoassay for the detection of PSA based on a tri-part split-nanoluciferase system and a nanobody targeting PSA. In our approach, two small components of the split-nanoluciferase, referred to as β9 and β10, were individually fused to two anti-PSA nanobodies, N7 and N23. When these proteins bind to PSA and in the presence of the third nanoluciferase component, called Δ11S, the split-nanoluciferase components are brought into close proximity, facilitating the reassembly of the active nanoluciferase and activation of luminescence. These proteins were expressed in a bacterial expression system, purified, and employed for the intended immunoassay. The developed immunoassay demonstrated the capability to sensitively detect PSA within a linear range from 1.0 to 20.0 ng/mL with LOD of 0.4 ng/mL, and the results obtained through this immunoassay agreed with those derived from the ELISA. Our study indicates that the homogeneous immunoassay developed with nanobodies exhibits remarkable specificity for PSA and can serve as a reliable, fast, and user-friendly test for detecting PSA. </p> </div> <p> <strong class="sub-title"> Keywords: </strong> Immunoassay; Nanobody; Prostate cancer; Prostate-specific antigen; Split nanoluciferase. </p> </div> <p class="copyright" id="copyright"> Copyright © 2024 Elsevier Inc. All rights reserved. </p> <p class="disclaimer" id="disclaimer"> <a href="/disclaimer/" target="_blank" ga_category="literature_resources" ga_action="disclaimer_link" ga_label="under_abstract">PubMed Disclaimer</a> </p> <div class="conflict-of-interest" id="conflict-of-interest"> <h2 class="title"> Conflict of interest statement </h2> <div class="statement"> <p xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:p1="http://pubmed.gov/pub-one">Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.</p> </div> </div> <div class="similar-articles" id="similar"> <h2 class="title"> Similar articles </h2> <ul class="articles-list" id="similar-articles-list"> <li class="full-docsum"> <div class="docsum-content" style="display:inline;"> <a class="docsum-title" href="/29935325/" ref="article_id=29935325&linksrc=similar_articles_link&ordinalpos=1" data-ga-category="similar_article" data-ga-action="29935325" data-ga-label=""> Sandwich pair nanobodies, a potential tool for electrochemical immunosensing serum prostate-specific antigen with preferable specificity. </a> <div class="docsum-citation full-citation"> <span class="docsum-authors full-authors">Liu X, Wang D, Chu J, Xu Y, Wang W.</span> <span class="docsum-authors short-authors">Liu X, et al.</span> <span class="docsum-journal-citation full-journal-citation">J Pharm Biomed Anal. 2018 Sep 5;158:361-369. doi: 10.1016/j.jpba.2018.06.021. 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Development of a bioluminescent homogenous nanobody-based immunoassay for the detection of prostate-specific antigen (PSA) - PubMed