Intestinal microbes direct CX3CR1+ cells to balance intestinal immunity

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Abstract

Intestinal damage driven by unrestricted immune responses against the intestinal microbiota can lead to the development of inflammatory diseases including inflammatory bowel disease. How such breakdown in tolerance occurs alongside the mechanisms to reinforce homeostasis with the microbiota are a focus of many studies. Our recent work demonstrates coordinated interactions between intact microbiota and CX3CR1 expressing intestinal antigen presenting cells (APCs) that limits T helper 1 cell responses and promotes differentiation of regulatory T cells (Treg) against intestinal antigens including pathogens, soluble proteins and the microbiota itself. We find a microbial attachment to intestinal epithelial cells is necessary to support these anti-inflammatory immune functions. In this addendum, we discuss how our findings enhance understanding of microbiota-directed homeostatic functions of the intestinal immune system and implications of modulating this interaction in ameliorating inflammatory disease.

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APA

Kim, M., Hill, A. A., Wu, W. J., & Diehl, G. E. (2019). Intestinal microbes direct CX3CR1+ cells to balance intestinal immunity. Gut Microbes, 10(4), 540–546. https://doi.org/10.1080/19490976.2018.1559683

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