Paneth cells in intestinal homeostasis and tissue injury.

Bibliographic Details
Title: Paneth cells in intestinal homeostasis and tissue injury.
Authors: Sabrina Roth, Patrick Franken, Andrea Sacchetti, Andreas Kremer, Kurt Anderson, Owen Sansom, Riccardo Fodde
Source: PLoS ONE, Vol 7, Iss 6, p e38965 (2012)
Publisher Information: Public Library of Science (PLoS), 2012.
Publication Year: 2012
Collection: LCC:Medicine
LCC:Science
Subject Terms: Medicine, Science
More Details: Adult stem cell niches are often co-inhabited by cycling and quiescent stem cells. In the intestine, lineage tracing has identified Lgr5(+) cells as frequently cycling stem cells, whereas Bmi1(+), mTert(+), Hopx(+) and Lrig1(+) cells appear to be more quiescent. Here, we have applied a non-mutagenic and cell cycle independent approach to isolate and characterize small intestinal label-retaining cells (LRCs) persisting in the lower third of the crypt of Lieberkühn for up to 100 days. LRCs do not express markers of proliferation and of enterocyte, goblet or enteroendocrine differentiation, but are positive for Paneth cell markers. While during homeostasis, LR/Paneth cells appear to play a supportive role for Lgr5(+) stem cells as previously shown, upon tissue injury they switch to a proliferating state and in the process activate Bmi1 expression while silencing Paneth-specific genes. Hence, they are likely to contribute to the regenerative process following tissue insults such as chronic inflammation.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1932-6203
Relation: http://europepmc.org/articles/PMC3380033?pdf=render; https://doaj.org/toc/1932-6203
DOI: 10.1371/journal.pone.0038965
Access URL: https://doaj.org/article/e67fd3c67cb14cf093871d4815ec7e29
Accession Number: edsdoj.67fd3c67cb14cf093871d4815ec7e29
Database: Directory of Open Access Journals
More Details
ISSN:19326203
DOI:10.1371/journal.pone.0038965
Published in:PLoS ONE
Language:English