Crosstalk between muscularis macrophages and enteric neurons regulates gastrointestinal motility.

Abstract:

:Intestinal peristalsis is a dynamic physiologic process influenced by dietary and microbial changes. It is tightly regulated by complex cellular interactions; however, our understanding of these controls is incomplete. A distinct population of macrophages is distributed in the intestinal muscularis externa. We demonstrate that, in the steady state, muscularis macrophages regulate peristaltic activity of the colon. They change the pattern of smooth muscle contractions by secreting bone morphogenetic protein 2 (BMP2), which activates BMP receptor (BMPR) expressed by enteric neurons. Enteric neurons, in turn, secrete colony stimulatory factor 1 (CSF1), a growth factor required for macrophage development. Finally, stimuli from microbial commensals regulate BMP2 expression by macrophages and CSF1 expression by enteric neurons. Our findings identify a plastic, microbiota-driven crosstalk between muscularis macrophages and enteric neurons that controls gastrointestinal motility. PAPERFLICK:

journal_name

Cell

journal_title

Cell

authors

Muller PA,Koscsó B,Rajani GM,Stevanovic K,Berres ML,Hashimoto D,Mortha A,Leboeuf M,Li XM,Mucida D,Stanley ER,Dahan S,Margolis KG,Gershon MD,Merad M,Bogunovic M

doi

10.1016/j.cell.2014.04.050

subject

Has Abstract

pub_date

2014-07-17 00:00:00

pages

300-313

issue

2

eissn

0092-8674

issn

1097-4172

pii

S0092-8674(14)00735-1

journal_volume

158

pub_type

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