{"id":233189,"date":"2026-03-12T23:28:11","date_gmt":"2026-03-13T04:28:11","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/03\/setd4-expressing-cells-drive-regenerative-recovery-in-chronic-liver-injury"},"modified":"2026-03-12T23:28:11","modified_gmt":"2026-03-13T04:28:11","slug":"setd4-expressing-cells-drive-regenerative-recovery-in-chronic-liver-injury","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/03\/setd4-expressing-cells-drive-regenerative-recovery-in-chronic-liver-injury","title":{"rendered":"Setd4-expressing cells drive regenerative recovery in chronic liver injury"},"content":{"rendered":"<p><a class=\"blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/setd4-expressing-cells-drive-regenerative-recovery-in-chronic-liver-injury2.jpg\"><\/a><\/p>\n<p>Liver regeneration in chronic disease is incompletely understood. In this issue, Jia and coworkers identify a distinct population of hepatocytes expressing Setd4 as key contributors to liver regeneration after chronic injury. Using lineage-tracing and ablation strategies in mouse models of chronic liver damage due to thioacetamide or 3,5-diethoxycarbonyl-1,4-dihydrocollidine diet, the authors show that Setd4+ cells are a long-lasting, dormant, injury-resistant hepatocyte population that survives chronic insults and get activated to support <i>de novo<\/i> regeneration. Quiescent Setd4+ cells show suppressed metabolic activity maintained by a chromatin state that promotes cellular dormancy and survival (H4K20me3-enriched heterochromatin). After chronic injury, chromatin accessibility remodelling occurs, leading to activation of the cells and initiating regeneration. Selective ablation of Setd4+ cells markedly impaired regenerative recovery, leading to increased fibrosis, higher transaminases, and shorter survival. Interestingly, Setd4+ cells appeared to be essential to initiate <i>de novo<\/i> regeneration under chronic but not acute conditions. Given the presented data, this newly identified dormant Setd4+ hepatocyte population might hold therapeutic potential to restore regeneration in chronic liver disease.<\/p>\n<p>Full text here: <a href=\"https:\/\/www.journal-of-hepatology.eu\/article\/S0168-8278(25)02564-4\/fulltext\">https:\/\/www.journal-of-hepatology.eu\/article\/S0168-8278(\u20264\/fulltext<\/a>.<\/p>\n<p>EASL \u2014 the home of hepatology.<\/p>\n<hr>\n<p>Chronic liver injury and its progression to disease often extend beyond exposure to toxic metabolites or xenobiotics. Recovery from chronic injury, when achieved, depends on <i>de novo<\/i> regeneration, the underlying mechanisms of which remain poorly understood. Herein, we investigate a specific cell population proposed to be fundamental for <i>de novo<\/i> regeneration and recovery following chronic injury, aiming to elucidate its regulatory mechanisms.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Liver regeneration in chronic disease is incompletely understood. In this issue, Jia and coworkers identify a distinct population of hepatocytes expressing Setd4 as key contributors to liver regeneration after chronic injury. Using lineage-tracing and ablation strategies in mouse models of chronic liver damage due to thioacetamide or 3,5-diethoxycarbonyl-1,4-dihydrocollidine diet, the authors show that Setd4+ cells [\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],"tags":[],"class_list":["post-233189","post","type-post","status-publish","format-standard","hentry","category-biotech-medical"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/233189","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=233189"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/233189\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=233189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=233189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=233189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}