LATS1-Beclin1 mediates a non-canonical connection between the Hippo pathway and autophagy

Understanding the mechanisms of evasive resistance in cancer is of great importance to develop efficient therapies. Analyzing the molecular mechanisms underlying therapy resistance of hepatocellular carcinoma (HCC), we have discovered a kinase-activity independent role of LATS1 (large tumor suppress...

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Bibliographic Details
Main Authors: Fengyuan Tang, Gerhard Christofori
Format: Article
Language:English
Published: Taylor & Francis Group 2020-07-01
Series:Molecular & Cellular Oncology
Subjects:
Online Access:http://dx.doi.org/10.1080/23723556.2020.1757378
Description
Summary:Understanding the mechanisms of evasive resistance in cancer is of great importance to develop efficient therapies. Analyzing the molecular mechanisms underlying therapy resistance of hepatocellular carcinoma (HCC), we have discovered a kinase-activity independent role of LATS1 (large tumor suppressor) but not LATS2 in regulating sorafenib-induced lethal autophagy in HCC. We have found that the autophagy regulatory role of LATS1 is a general phenomenon in response to various stimuli of autophagy induction which relies on a LATS1-specific protein domain. Mechanistically, the autophagy regulatory role of LATS1 is coupled with Beclin-1 (BECN1) K27-linked ubiquitination and BECN1 self-dimerization. Our study highlights a LATS1-mediated non-classical interaction between the Hippo signaling pathway and autophagy in therapy response and carcinogenesis.
ISSN:2372-3556