Title |
Crosstalk between Muscularis Macrophages and Enteric Neurons Regulates Gastrointestinal Motility
|
---|---|
Published in |
Cell, July 2014
|
DOI | 10.1016/j.cell.2014.04.050 |
Pubmed ID | |
Authors |
Paul Andrew Muller, Balázs Koscsó, Gaurav Manohar Rajani, Korey Stevanovic, Marie-Luise Berres, Daigo Hashimoto, Arthur Mortha, Marylene Leboeuf, Xiu-Min Li, Daniel Mucida, E. Richard Stanley, Stephanie Dahan, Kara Gross Margolis, Michael David Gershon, Miriam Merad, Milena Bogunovic |
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: |
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