The Drosophila hindgut lacks constitutively active adult stem cells but proliferates in response to tissue damage.

Published

Journal Article

The adult Drosophila hindgut was recently reported to contain active, tissue-replenishing stem cells, like those of the midgut, but located within an anterior ring so as to comprise a single giant crypt. In contrast to this view, we observed no active stem cells and little cell turnover in adult hindgut tissue based on clonal marking and BrdU incorporation studies. Again contradicting the previous proposal, we showed that the adult hindgut is not generated by anterior stem cells during larval/pupal development. However, severe tissue damage within the hindgut elicits cell proliferation within a ring of putative quiescent stem cells at the anterior of the pylorus. Thus, the hindgut does not provide a model of tissue maintenance by constitutively active stem cells, but has great potential to illuminate mechanisms of stress-induced tissue repair.

Full Text

Duke Authors

Cited Authors

  • Fox, DT; Spradling, AC

Published Date

  • September 4, 2009

Published In

Volume / Issue

  • 5 / 3

Start / End Page

  • 290 - 297

PubMed ID

  • 19699165

Pubmed Central ID

  • 19699165

Electronic International Standard Serial Number (EISSN)

  • 1875-9777

Digital Object Identifier (DOI)

  • 10.1016/j.stem.2009.06.003

Language

  • eng

Conference Location

  • United States