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Title: TRIMs and Galectins Globally Cooperate and TRIM16 and Galectin-3 Co-direct Autophagy in Endomembrane Damage Homeostasis
Authors: Santosh Chauhan
Suresh Kumar
Ashish Jain
Marisa Ponpuak
Michal H. Mudd
Tomonori Kimura
Seong Won Choi
Ryan Peters
Michael Mandell
Jack Ansgar Bruun
Terje Johansen
Vojo Deretic
University of New Mexico Health Sciences Center
UiT The Arctic University of Norway
Mahidol University
Keywords: Biochemistry, Genetics and Molecular Biology
Issue Date: 10-Oct-2016
Citation: Developmental Cell. Vol.39, No.1 (2016), 13-27
Abstract: © 2016 Elsevier Inc. Selective autophagy performs an array of tasks to maintain intracellular homeostasis, sterility, and organellar and cellular functionality. The fidelity of these processes depends on precise target recognition and limited activation of the autophagy apparatus in a localized fashion. Here we describe cooperation in such processes between the TRIM family and Galectin family of proteins. TRIMs, which are E3 ubiquitin ligases, displayed propensity to associate with Galectins. One specific TRIM, TRIM16, interacted with Galectin-3 in a ULK1-dependent manner. TRIM16, through integration of Galectin- and ubiquitin-based processes, coordinated recognition of membrane damage with mobilization of the core autophagy regulators ATG16L1, ULK1, and Beclin 1 in response to damaged endomembranes. TRIM16 affected mTOR, interacted with TFEB, and influenced TFEB's nuclear translocation. The cooperation between TRIM16 and Galectin-3 in targeting and activation of selective autophagy protects cells from lysosomal damage and Mycobacterium tuberculosis invasion.
ISSN: 18781551
Appears in Collections:Scopus 2016-2017

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