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Peyer\u27s patch M cells derived from Lgr5\u3csup\u3e+\u3c/sup\u3e stem cells require SpiB and are induced by RankL in cultured miniguts
Authors
Nick Barker
Hans Clevers
+10 more
Wim de Lau
Rodney P. DeKoter
Frans Hofhuis
Pekka Kujala
Vivian S.W. Li
Anton Martens
Sabine Middendorp
Edward Nieuwenhuis
Peter J. Peters
Kerstin Schneeberger
Publication date
1 September 2012
Publisher
Scholarship@Western
Abstract
Peyer\u27s patches consist of domains of specialized intestinal epithelium overlying gut-associated lymphoid tissue (GALT). Luminal antigens reach the GALT by translocation through epithelial gatekeeper cells, the so-calledMcells. We recently demonstrated that all epithelial cells required for the digestive functions of the intestine are generated from Lgr5-expressing stem cells. Here, we show thatMcells also derive from these crypt-based Lgr5 stem cells. The Ets family transcription factor SpiB, known to control effector functions of bone marrow-derived immune cells, is specifically expressed inMcells. In SpiB-/-mice, Mcells are entirely absent, which occurs in a cell-autonomous fashion. It has been shown that Tnfsf11 (RankL) can induceMcell development in vivo. We show that in intestinal organoid ( minigut ) cultures, stimulation with RankL induces SpiB expression within 24 h and expression of otherMcell markers subsequently. We conclude that RankL-induced expression of SpiB is essential for Lgr5 stem cell-derived epithelial precursors to develop intoMcells. © 2012, American Society for Microbiology
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oai:ir.lib.uwo.ca:paedpub-2109
Last time updated on 08/10/2022