TY - JOUR
T1 - Epithelial tension controls intestinal cell extrusion
AU - Krueger, Daniel
AU - Spoelstra, Willem Kasper
AU - Mastebroek, Dirk Jan
AU - Kok, Rutger N.U.
AU - Wu, Shanie
AU - Nikolaev, Mike
AU - Bannier-Hélaouët, Marie
AU - Gjorevski, Nikolche
AU - Lutolf, Matthias
AU - van Es, Johan
AU - van Zon, Jeroen
AU - Tans, Sander J.
AU - Clevers, Hans
N1 - Publisher Copyright:
© 2025 American Association for the Advancement of Science. All rights reserved.
PY - 2025/9/4
Y1 - 2025/9/4
N2 - Cell extrusion is essential for homeostatic self-renewal of the intestinal epithelium. extrusion is thought to be triggered by crowding-induced compression of cells at the intestinal villus tip. In this study, we found instead that a local “tug-of-war” competition between contractile cells regulated extrusion in the intestinal epithelium. We combined quantitative live microscopy, optogenetic induction of tissue tension, genetic perturbation of myosin II activity, and local disruption of the basal cortex in mouse intestines and intestinal organoids. these approaches revealed that a dynamic actomyosin network generates tension throughout the intestinal villi, including the villus tip region. mechanically weak cells unable to maintain this tension underwent extrusion. thus, epithelial barrier integrity depends on intercellular mechanics.
AB - Cell extrusion is essential for homeostatic self-renewal of the intestinal epithelium. extrusion is thought to be triggered by crowding-induced compression of cells at the intestinal villus tip. In this study, we found instead that a local “tug-of-war” competition between contractile cells regulated extrusion in the intestinal epithelium. We combined quantitative live microscopy, optogenetic induction of tissue tension, genetic perturbation of myosin II activity, and local disruption of the basal cortex in mouse intestines and intestinal organoids. these approaches revealed that a dynamic actomyosin network generates tension throughout the intestinal villi, including the villus tip region. mechanically weak cells unable to maintain this tension underwent extrusion. thus, epithelial barrier integrity depends on intercellular mechanics.
UR - https://www.scopus.com/pages/publications/105015182032
U2 - 10.1126/science.adr8753
DO - 10.1126/science.adr8753
M3 - Article
AN - SCOPUS:105015182032
SN - 0036-8075
VL - 389
JO - Science
JF - Science
IS - 6764
M1 - eadr8753
ER -