AMBRA1 is involved in T cell receptor-mediated metabolic reprogramming through an ATG7-independent pathway

AMBRA1 is involved in T cell receptor-mediated metabolic reprogramming through an... Metabolic reprogramming contributes to dynamic alteration of cell functions and characteristics. In T cells, TCR-mediated signaling evokes metabolic reprogramming and autophagy. AMBRA1 is known to serve in the facilitation of autophagy and quality control of mitochondria, but the role of AMBRA1 in T cell metabolic alteration is unknown. Here, we show that AMBRA1, but not ATG7, plays a role in TCR-mediated control of glycolytic factors and mitochondrial mass, while both AMBRA1 and ATG7 are required for autolysosome formation. Our results suggested that AMBRA1 is a core factor that controls both autophagy and metabolic regulation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biochemical and Biophysical Research Communications Elsevier

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier Inc.
ISSN
0006-291x
D.O.I.
10.1016/j.bbrc.2017.08.019
Publisher site
See Article on Publisher Site

Abstract

Metabolic reprogramming contributes to dynamic alteration of cell functions and characteristics. In T cells, TCR-mediated signaling evokes metabolic reprogramming and autophagy. AMBRA1 is known to serve in the facilitation of autophagy and quality control of mitochondria, but the role of AMBRA1 in T cell metabolic alteration is unknown. Here, we show that AMBRA1, but not ATG7, plays a role in TCR-mediated control of glycolytic factors and mitochondrial mass, while both AMBRA1 and ATG7 are required for autolysosome formation. Our results suggested that AMBRA1 is a core factor that controls both autophagy and metabolic regulation.

Journal

Biochemical and Biophysical Research CommunicationsElsevier

Published: Sep 30, 2017

References

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