RNA Sensing by Gut Piezo1 Is Essential for Systemic Serotonin Synthesis
Maruyama et al. provide evidence from mouse experiments that fecal single-stranded RNA (ssRNA) is sensed in the gut by the cation channel Piezo1. They show that ssRNA-stimulated Piezo1 is involved in peristalsis and gut serotonin synthesis and reduced bone mass. The ssRNA-Piezo1 axis reported could be a prophylactic target for treatment of bone and gut disorders, including the side effects of…