Microbial RNAs Pressure Piezo1 to Respond.

Matute, Juan D; Duan, Jinzhi; Blumberg, Richard S · Cell · 2020

editorial · Level V

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Abstract

Serotonin production by enterochromaffin cells (ECs) is microbiota-dependent, but the mechanism of this is unknown. In this issue of Cell, Sugisawa et al. demonstrate that Piezo1 in ECs senses single-strand RNA (ssRNA) from intestinal microbiota to promote serotonin production. Deletion of Piezo1 in intestinal epithelium promotes bone formation, decreases peristalsis, and protects from colitis because of decreased serotonin.

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