Mechanosensory Control of Pregnancy and Parturition

Mechanical forces may help the body coordinate pregnancy and labor. Yunxiao Zhang, Ph.D., of Scripps Research Institute, examines how PIEZO1 and PIEZO2, proteins that open in response to stretch, contribute to uterine contractions and the timing of birth. Zhang finds PIEZO1 in uterine smooth muscle and PIEZO2 in sensory nerve fibers around the cervix. In mouse models, removing both channels weakens labor contractions, delays the start of delivery and increases the time between pups. The findings suggest that PIEZO1 helps prepare uterine muscle for stronger contractions, while PIEZO2 helps sensory nerves detect cervical stretch. Zhang also discusses how fats in cell membranes may change PIEZO1 sensitivity and why uterine cells and sensory nerves have connected roles. This research offers a new way to study how physical forces help regulate labor. Series: "Motherhood Channel" [Health and Medicine] [Show ID: 41642]