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Tian, Jin-Ze; Xing, Sheng; Feng, Jing-Yi; Yang, Shu-Hua; Ding, Yan-Fu; Huang, Xue-Ting; Yang, Jin-Shu; Yang, Wei-Jun
Scientific reports, 06/2021, Letnik: 11, Številka: 1Journal Article
Abstract In the adult pancreas, the presence of progenitor or stem cells and their potential involvement in homeostasis and regeneration remains unclear. Here, we identify that SET domain-containing protein 4 (SETD4), a histone lysine methyltransferase, is expressed in a small cell population in the adult mouse pancreas. Genetic lineage tracing shows that during pancreatic development, descendants of SETD4 + cells make up over 70% of pancreatic cells and then contribute to each pancreatic lineage during pancreatic homeostasis. SETD4 + cells generate newborn acinar cells in response to cerulein-induced pancreatitis in acinar compartments. Ablation of SETD4 + cells compromises regeneration of acinar cells, in contrast to controls. Our findings provide a new cellular narrative for pancreatic development, homeostasis and response to injury via a small SETD4 + cell population. Potential applications may act to preserve pancreatic function in case of pancreatic disease and/or damage.
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