Abstract:
:A comparative analysis of mouse and human pancreatic development may reveal common mechanisms that control key steps as organ morphogenesis and cell proliferation and differentiation. More specifically, understanding beta cell development remains an issue, despite recent progress related to their generation from human embryonic and induced pluripotent stem cells. In this study, we use an integrated approach, including prospective isolation, organ culture, and characterization of intermediate stages, and report that cells from human and mouse fetal pancreas can be expanded in the long term and give rise to hollow duct-like structures in 3D cultures. The expanded cells express a combination of markers (E-cadherin, PDX1, NKX6-1, SOX9, and HNF1β) that reveals pancreatic progenitor identity. Proliferation of embryonic progenitors was stimulated by the Wnt agonist R-spondin1 (RSPO1), FGF10, and EGF. This combination of growth factors allowed maintaining human fetal pancreatic progenitors in culture for many passages, a finding not reported previously. Importantly, in the absence of EGF, proliferation was reduced, while endocrine differentiation was significantly enhanced. We conclude that modulation of EGF signaling affects in vitro expansion and differentiation of progenitors from embryonic pancreas of both mice and man.
journal_name
Stem Cells Devjournal_title
Stem cells and developmentauthors
Bonfanti P,Nobecourt E,Oshima M,Albagli-Curiel O,Laurysens V,Stangé G,Sojoodi M,Heremans Y,Heimberg H,Scharfmann Rdoi
10.1089/scd.2014.0550subject
Has Abstractpub_date
2015-08-01 00:00:00pages
1766-78issue
15eissn
1547-3287issn
1557-8534journal_volume
24pub_type
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