{"id":56149,"date":"2026-03-05T13:37:43","date_gmt":"2026-03-05T21:37:43","guid":{"rendered":"https:\/\/www.salk.edu\/?post_type=disclosure&#038;p=56149"},"modified":"2026-03-06T10:50:31","modified_gmt":"2026-03-06T18:50:31","slug":"how-do-glp-1-agonists-affect-gene-expression","status":"publish","type":"disclosure","link":"https:\/\/www.salk.edu\/zh\/news-release\/how-do-glp-1-agonists-affect-gene-expression\/","title":{"rendered":"GLP-1 \u6fc0\u52a8\u5242\u5982\u4f55\u5f71\u54cd\u57fa\u56e0\u8868\u8fbe\uff1f"},"content":{"rendered":"<ul>\n<li style=\"list-style: none; padding-left: -20px !important; margin-left: -20px !important;\"><strong>Highlights<\/strong><\/li>\n<li>GLP-1 drugs have come to be thought of as \u201cwonder drugs,\u201d yet the mechanisms behind their many new health benefits have remained unclear<\/li>\n<li>New research from the Salk Institute reveals the mechanism behind one of these benefits: promoting pancreatic beta cells\u2019 health and stress tolerance, long-term<\/li>\n<li>The findings show how GLP-1 drugs can trigger broad genomic responses<\/li>\n<\/ul>\n<p>\u52a0\u5dde\u62c9\u970d\u4e9a\u2014GLP-1 \u7c7b\u836f\u7269\u6b63\u56e0\u5176\u201c\u795e\u5947\u7597\u6548\u201d\u800c\u58f0\u540d\u9e4a\u8d77\u3002\u8fd9\u7c7b\u836f\u7269\u6700\u521d\u56e0\u80fd\u6539\u5584\u80f0\u5c9b\u7d20\u91ca\u653e\u548c\u6cbb\u7597\u7cd6\u5c3f\u75c5\u800c\u95fb\u540d\uff0c\u540e\u6765\u53c8\u88ab\u53d1\u73b0\u80fd\u4fc3\u8fdb\u51cf\u80a5\u548c\u6539\u5584\u5fc3\u8840\u7ba1\u5065\u5eb7\u3002\u9664\u4e86\u8fd9\u4e9b\u51fa\u4eba\u610f\u6599\u7684\u989d\u5916\u76ca\u5904\u5916\uff0cGLP-1 \u7c7b\u836f\u7269\u8fd8\u80fd\u6539\u5584\u80f0\u817a \u03b2 \u7ec6\u80de\u7684\u5065\u5eb7\u3002\u4f46\u5b83\u4eec\u7a76\u7adf\u662f\u5982\u4f55\u505a\u5230\u8fd9\u4e00\u70b9\u7684\u5462\uff1f<\/p>\n<figure id=\"attachment_56152\"  class=\"wp-caption alignright\"><a href=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"458\" height=\"137\" class=\"img-responsive wp-image-56152 size-col-md-5\" src=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors-458x137.jpg\" alt=\"Sam Van de Velde, PhD, (left), Marc Montminy, PhD, (center), and Reuben Shaw, PhD (right) discovered that GLP-1s interact with the multi-protein complex called Mediator to cause a broad genomic response.\" srcset=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors-458x137.jpg 458w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors-300x90.jpg 300w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors-1024x307.jpg 1024w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors-768x231.jpg 768w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors-147x44.jpg 147w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors-585x176.jpg 585w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors-553x166.jpg 553w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors-750x225.jpg 750w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors-767x230.jpg 767w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors-945x284.jpg 945w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors.jpg 1166w\" sizes=\"auto, (max-width: 458px) 100vw, 458px\" \/><\/a><figcaption class=\"wp-caption-text\">Sam Van de Velde, PhD, (left), Marc Montminy, PhD, (center), and Reuben Shaw, PhD (right) discovered that GLP-1s interact with the multi-protein complex called Mediator to cause a broad genomic response.<br \/><a href=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-authors.jpg\" target=\"_blank\" rel=\"noopener\">Click here<\/a> for a high-resolution image.<br \/>Credit: Salk Institute<\/figcaption><\/figure>\n<p>Salk Institute researchers are burrowing down into the mechanistic details behind how GLP-1 drugs promote viability and stress resistance in pancreatic beta cells. Since cellular performance adaptations arise from gene expression changes, the team screened for regulatory proteins that can flip \u201con\u201d advantageous gene programs during prolonged GLP-1 use. They identified a protein called Med14\u2014part of a larger protein complex called Mediator\u2014that was enabling the GLP-1-dependent changes in gene expression that lead to pancreatic health benefits.<\/p>\n<p>The study was published in <a href=\"https:\/\/www.pnas.org\/doi\/10.1073\/pnas.2536772123\" target=\"_blank\" rel=\"noopener\"><em>Proceedings of the National Academy of Sciences<\/em><\/a> on <span style=\"white-space: nowrap;\">March 4, 2026,<\/span> and was funded by federal research grants from the National Institutes of Health and private philanthropy.<\/p>\n<p>\u201cThe broad salutary effects of GLP-1 drugs in diabetes, cardiovascular disease, and obesity have sparked a wave of exciting scientific research at the mechanistic level. We\u2019re left wondering,\u00a0 \u2018How are GLP-1s causing these effects?\u2019\u201d asks senior author <a href=\"https:\/\/www.salk.edu\/zh\/scientist\/marc-montminy\/\" target=\"_blank\" rel=\"noopener\">Marc Montminy, MD, PhD,<\/a> a biochemist, physiologist, and distinguished professor emeritus at Salk. \u201cWe were able to single out a protein, Med14, whose activation downstream of GLP-1 helps reprogram pancreatic beta cell gene expression to improve the cells\u2019 viability and insulin production.\u201d<\/p>\n<h2 style=\"font-size: 20px; margin-top: 40px;\"><strong>What are GLP-1 drugs?<\/strong><\/h2>\n<p>Often simply called \u201cGLP-1 drugs\u201d or \u201cGLPs,\u201d <em>glucagon-like peptide-1 receptor<\/em> <em>agonists <\/em>work by mimicking a hormone our bodies naturally make. The hormone, called glucagon-like peptide-1, helps regulate blood sugar.by promoting the secretion of insulin. They do so by attaching to corresponding GLP-1 receptors on pancreatic beta cells, which then produce and release insulin into the body.<\/p>\n<p>But GLP-1 drugs differ in one significant way from their natural counterpart: Unlike human-made GLP-1 hormones that appear and disappear quickly around mealtimes, artificial GLP-1 receptor agonists can stick around much longer. The Salk researchers suspect this longer-term presence may explain some of the \u201cwonder drug\u201d benefits of GLP-1 drugs. But what, exactly, on the molecular level, are GLP-1 drugs doing when they stick around? And how does their staying power turn into effects like lower risk of stroke or improved osteoarthritis?<\/p>\n<p>&#8220;The fact that these drugs based off our hormones are stable seems to be important to the longer-term effects we\u2019re witnessing in pancreatic beta cells and other tissues,\u201d says first author Sam Van de Velde, PhD, a staff scientist in Montminy\u2019s lab. \u201cTo understand how we are getting these longer-term effects, we need to study these drugs on a longer time scale\u2014and that\u2019s exactly what we did.\u201d<\/p>\n<h2 style=\"font-size: 20px; margin-top: 40px;\"><strong>How do GLP-1 drugs influence pancreatic health?<\/strong><\/h2>\n<p>When the hormone GLP-1 finds a pancreatic beta cell, the ensuing chain of signals, proteins, and gene expression changes that lead to insulin secretion is very well documented. On the other hand, the mechanisms and changes on the longer-term GLP-1 drug scale are poorly understood.<\/p>\n<p>So, the researchers set out on a molecular fishing expedition in a pancreatic beta cell line. The team was hoping to hook a protein (or proteins) that, post-GLP-1 activation, had a particular chemical modification called phosphorylation. And that\u2019s exactly what they found in Med14.<\/p>\n<figure id=\"attachment_56155\"  class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"466\" class=\"img-responsive wp-image-56155 size-large\" src=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-1024x466.jpg\" alt=\"Small (left) and large (right) condensates of the mediator complex inside nuclei of a pancreatic beta cell-derived cell line. Salk researchers discovered that GLP-1s interact with the multi-protein complex called Mediator to cause a broad genomic response. \" srcset=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-1024x466.jpg 1024w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-300x137.jpg 300w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-768x350.jpg 768w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-1536x700.jpg 1536w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-147x67.jpg 147w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-458x209.jpg 458w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-585x266.jpg 585w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-553x252.jpg 553w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-750x342.jpg 750w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-767x349.jpg 767w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy-945x430.jpg 945w, https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy.jpg 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-caption-text\">Small (left) and large (right) condensates of the Mediator complex inside nuclei of a pancreatic beta cell-derived cell line. Salk researchers discovered that GLP-1s interact with the multi-protein complex called Mediator to cause a broad genomic response.<br \/><a href=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2026\/03\/2603-pr-Montminy-microscopy.jpg\" target=\"_blank\" rel=\"noopener\">Click here<\/a> for a high-resolution image.<br \/>Credit: Salk Institute<\/figcaption><\/figure>\n<p>Med14 is a subunit in a multi-protein complex called Mediator, which is a well-described general regulator of gene expression throughout the genome. To confirm whether Med14 was an integral link between GLP-1 drugs and ultimate changes in gene expression and pancreatic beta cell behavior, the researchers decided to mutate Med14, making the protein resistant to phosphorylation.<\/p>\n<p>The gene expression patterns associated with prolonged GLP-1 drug exposure disappeared in a Med14 mutant pancreatic beta cell line and in beta cells of a Med14 mutant mouse model. With working Med14, the helpful gene programs were activated\u2014supercharging pancreatic beta cells to grow and better handle sugar-rich environments after meals.<\/p>\n<h2 style=\"font-size: 20px; margin-top: 40px;\"><strong>How else might GLP-1 drugs affect the body?<\/strong><\/h2>\n<p>None of the Salk team\u2019s experiments were conducted in humans, yet the relevance remains. For example, some of the genes regulated by Med14 phosphorylation are known to be linked to type 2 diabetes susceptibility in humans.<\/p>\n<p>\u201cOur findings unexpectedly reveal that phosphorylation of just a small part of the Med14 protein plays a significant role in the response to GLP-1 drugs\u2014and in the metabolic response to hormones more broadly,\u201d says <a href=\"https:\/\/www.salk.edu\/zh\/scientist\/reuben-shaw\/\" target=\"_blank\" rel=\"noopener\">Reuben Shaw, PhD,<\/a> a professor and holder of the William R. Brody Chair at Salk, and director of the National Cancer Institute-Designated Salk Cancer Center. \u201cNow there are many new questions to answer, from validating our findings in human tissues to seeing whether Med14 has a similar role in other cells and organs.\u201d<\/p>\n<p>The team is especially curious about the effects of prolonged GLP-1 exposure beyond pancreatic beta cells. One of the messenger molecules between GLP-1 and Med14, called cAMP, is a commonly used messenger molecule in many other situations that don\u2019t include GLP-1. With that in mind, could other drugs or hormones activate genetic programs similar to GLP-1? And what\u2019s going on in other metabolically intensive tissues, like fat?<\/p>\n<p>The questions keep coming for the so-called \u201cwonder drug,\u201d and Salk scientists are enthusiastically working to answer them.<\/p>\n<h2 style=\"font-size: 20px; margin-top: 40px;\"><strong>Other authors and funding<\/strong><\/h2>\n<p>Other authors include Jungting Yu, K. Garrett Evensen, Edmund Pakhlevanyan, and April Williams of Salk.<\/p>\n<p>The work was supported by the National Institutes of Health (5R01 DK083834, R35 CA220538), Breakthrough T1D (INO-2022-1125-A-N), Paul F. Glenn Foundation for Biology of Ageing Research, Clayton Foundation for Medical Research, and Leona M. and Harry B. Helmsley Charitable Trust.<\/p>","protected":false},"featured_media":56160,"template":"","faculty":[100],"disease-research":[173,165,123,166],"class_list":["post-56149","disclosure","type-disclosure","status-publish","has-post-thumbnail","hentry","faculty-marc-montminy","disease-research-diabetes-type-1","disease-research-diabetes-type-2","disease-research-metabolism-and-diabetes","disease-research-obesity"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How do GLP-1 agonists affect gene expression? - Salk Institute for Biological Studies<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.salk.edu\/zh\/news-release\/how-do-glp-1-agonists-affect-gene-expression\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How do GLP-1 agonists affect gene expression? - Salk Institute for Biological Studies\" \/>\n<meta property=\"og:description\" content=\"Highlights GLP-1 drugs have come to be thought of as \u201cwonder drugs,\u201d yet the mechanisms behind their many new health benefits have remained unclear New research from the Salk Institute reveals the mechanism behind one of these benefits: promoting pancreatic beta cells\u2019 health and stress tolerance, long-term The findings show how GLP-1 drugs can trigger broad genomic responses LA JOLLA\u2014GLP-1s are building a reputation as \u201cwonder drugs.\u201d First characterized for their ability to improve insulin release and treat diabetes, the drugs were later found to promote weight loss and improve cardiovascular health. In addition to these surprising bonus benefits is the ability of GLP-1 drugs to improve pancreatic beta cell health. 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In addition to these surprising bonus benefits is the ability of GLP-1 drugs to improve pancreatic beta cell health. 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