(Journal Article): Recapitulation of embryonic neuroendocrine differentiation in adult human pancreatic duct cells expressing neurogenin 3.
Heremans Y, Van den Casteele M, Veld P, Gradwohl G, Serup P, Madsen O, Pipeleers D, Heimberg H (Diabetes Research Center, Brussels Free University (VUB), Laarbeeklaan 103, B-1090 Brussels, Belgium.)
J Cell Biol
Impact Factor(s) of J Cell Biol: 11.602 (2004), 12.023 (2003), 12.915 (2001)
ABSTRACT: Regulatory proteins have been identified in embryonic development of the endocrine pancreas. It is unknown whether these factors can also play a role in the formation of pancreatic endocrine cells from postnatal nonendocrine cells. The present study demonstrates that adult human pancreatic duct cells can be converted into insulin-expressing cells after ectopic, adenovirus-mediated expression of the class B basic helix-loop-helix factor neurogenin 3 (ngn3), which is a critical factor in embryogenesis of the mouse endocrine pancreas. Infection with adenovirus ngn3 (Adngn3) induced gene and/or protein expression of NeuroD/beta2, Pax4, Nkx2.2, Pax6, and Nkx6.1, all known to be essential for beta-cell differentiation in mouse embryos. Expression of ngn3 in adult human duct cells induced Notch ligands Dll1 and Dll4 and neuroendocrine- and beta-cell-specific markers: it increased the percentage of synaptophysin- and insulin-positive cells 15-fold in ngn3-infected versus control cells. Infection with NeuroD/beta2 (a downstream target of ngn3) induced similar effects. These data indicate that the Delta-Notch pathway, which controls embryonic development of the mouse endocrine pancreas, can also operate in adult human duct cells driving them to a neuroendocrine phenotype with the formation of insulin-expressing cells.
TYPE OF PUBLICATION: Original article
Articles citing this article:
- Hao E, Tyrberg B, Itkin-Ansari P, Lakey JR, Geron I, Monosov EZ, Barcova M, Mercola M, Levine F.
Beta-cell differentiation from nonendocrine epithelial cells of the adult human pancreas.
» Diabetes OD » Regeneration of Islets » Stem Cells » Other Cell Sources » Progenitors » Pancreatic Epithelial Cells » Journal Article
- Street CN, Lakey JR, Rajotte RV, Shapiro AM, Kieffer TJ, Lyon JG, Kin T, Korbutt GS.
Enriched Human Pancreatic Ductal Cultures Obtained from Selective Death of Acinar Cells Express Pancreatic and Duodenal Homeobox Gene-1 Age-Dependently.
Rev Diabetic Stud
» Diabetes OD » Regeneration of Islets » Stem Cells » Adult Stem Cells » Transcription Factors » PDX-1 » Journal Article
on this Journal Article!
Hint: Your Response should directly apply to Recapitulation of embryonic neuroendocrine differentiation in adult human pancreatic duct cells expressing neurogenin 3..
Please check, if this context applies best to your contribution. Otherwise click HERE to change to the appropriate
subject area. The actual subject area is Endocrine Differentiation.