Resident Macrophages in the Healthy and Inflamed Intestinal Muscularis Externa

Overview

Journal Pflugers Arch

Specialty Physiology

Date 2017 Feb 26

PMID 28236119

Citations 12

Authors

Sven Wehner

Daniel Robert Engel

Affiliations

Soon will be listed here.

Abstract

Macrophages reside in a dense cellular network in the intestinal muscularis externa, and there is emerging evidence that the functionality of these cells determines the local microenvironment. Inflammatory responses during intestinal diseases change the homeostatic functionality of these cells causing inflammation and intestinal dysmotility. Such disturbances are not only induced by a change in the cellular composition in the intestinal muscularis but also by an altered crosstalk with the peripheral and central nervous system. In this review, we summarize the role of muscularis macrophages in the intestine in homeostasis and inflammation. We compare the functionality, the phenotype, and the origin of muscularis macrophages to their neighboring counterparts within the different layers of the intestine. We outline the cellular crosstalk with the enteric and the peripheral nervous system and summarize the current therapeutic approaches to modulate the functionality of these phagocytes.

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