Rebalancing of actomyosin contractility enables mammary tumor formation upon loss of E-cadherin

Abstract

E-cadherin is a well-known tumor suppressor albeit loss of E-cadherin alone is insufficient to induce mammary tumorigenesis. Here the authors report that epithelial cells that have lost E-cadherin can survive by extruding to the basal lamina but require rebalancing of actomyosin contractility to drive tumor development.