Angiomotin-like 2 interacts with and negatively regulates AKT

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Abstract

Angiomotin-like 2 (AMOTL2) is a member of Angiomotin family proteins, which are potent inhibitors for the Hippo pathway effector YAP. However, additional cellular functions of AMOTL2 besides YAP inhibition are largely unknown. Here, we reported that AMOTL2 associates with and negatively regulates AKT. Mechanistically, AMOTL2 binds to AKT pleckstrin homology domain and interrupts AKT's membrane localization. Liver-specific depletion of AMOTL2 enlarged mouse liver and activated both YAP and AKT. Downregulation of AMOTL2 is found in human liver cancers, correlating with the concomitant activation of YAP and AKT. Together, our results provide novel insights into a dual tumor suppressive function of AMOTL2 by targeting both YAP and AKT in liver size control and cancer prevention.

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