Curvature-sensitive ERK activation (IMAGE) Kyoto University Caption ERK-mediated curvature feedback regulates lung epithelial branching morphogenesis in mice. Credit KyotoU Tobiyama / Tsuyoshi Hirashima Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.