The origin of intestinal stem cells in Drosophila

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Abstract

Renewing tissues in the adult organism such as the gastrointestinal (GI) epithelium depend on stem cells for epithelial maintenance and repair. Yet, little is known about the developmental origins of adult stem cells and their niches. Studies of Drosophila adult midgut precursors (AMPs), a population of endodermal progenitors, demonstrate that adult intestinal stem cells (ISCs) arise from the AMP lineage and provide insight into the stepwise process by which the adult midgut epithelium is established during development. Here, I review the current literature on AMPs, where local, inductive and long-range humoral signals have been found to control progenitor cell behavior. Future studies will be necessary to determine the precise mechanism by which adult intestinal stem cells are established in the endodermal lineage.

Original languageEnglish
Pages (from-to)85-91
Number of pages7
JournalDevelopmental Dynamics
Volume241
Issue number1
DOIs
StatePublished - Jan 2012

Keywords

  • AMPs
  • Drosophila
  • Intestinal stem cells

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