{"id":234861,"date":"2026-04-09T02:39:52","date_gmt":"2026-04-09T07:39:52","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/04\/a-stemness-checkpoint-helps-control-stem-cell-identity"},"modified":"2026-04-09T02:39:52","modified_gmt":"2026-04-09T07:39:52","slug":"a-stemness-checkpoint-helps-control-stem-cell-identity","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/04\/a-stemness-checkpoint-helps-control-stem-cell-identity","title":{"rendered":"A \u2018stemness checkpoint\u2019 helps control stem cell identity"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/a-stemness-checkpoint-helps-control-stem-cell-identity.jpg\"><\/a><\/p>\n<p>A study <a href=\"https:\/\/doi.org\/10.1038\/s41422-026-01245-5\" target=\"_blank\">published<\/a> in <i>Cell Research<\/i> advances a central idea in stem cell biology by identifying a checkpoint that controls the identity of many different types of stem cells across developmental stages. For nearly two decades, scientists have understood that stem cell self-renewal depends on blocking differentiation signals\u2014a concept described in earlier work, including Qi-Long Ying and Austin Smith\u2019s <a href=\"https:\/\/www.nature.com\/articles\/nature06968\" target=\"_blank\">2008 <i>Nature<\/i> paper<\/a> titled \u201cThe ground state of embryonic stem cell self-renewal.\u201d<\/p>\n<p>Now, researchers from the labs of Ying at USC and Guang Hu at the National Institute of Environmental Health Sciences (NIEHS), one of the National Institutes of Health (NIH), have identified the protein <a href=\"https:\/\/phys.org\/news\/2026-04-stem-cell-descendants-flexibility-distinct.html?utm_source=embeddings&utm_medium=related&utm_campaign=internal\" rel=\"related\">GSK3\u03b1<\/a> as a \u201cstemness checkpoint\u201d that drives differentiation and that can be inhibited to maintain stem cell identity.<\/p>\n<p>This discovery introduces a new conceptual framework: Rather than viewing stem cell maintenance as the result of many unrelated signaling conditions, distinct stem cell types share common checkpoints.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A study published in Cell Research advances a central idea in stem cell biology by identifying a checkpoint that controls the identity of many different types of stem cells across developmental stages. For nearly two decades, scientists have understood that stem cell self-renewal depends on blocking differentiation signals\u2014a concept described in earlier work, including Qi-Long [\u2026]<\/p>\n","protected":false},"author":662,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,1495],"tags":[],"class_list":["post-234861","post","type-post","status-publish","format-standard","hentry","category-biotech-medical","category-health"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/234861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/662"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=234861"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/234861\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=234861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=234861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=234861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}