Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Mariño, G; Pietrocola, F; Eisenberg, T; Kong, Y; Malik, SA; Andryushkova, A; Schroeder, S; Pendl, T; Harger, A; Niso-Santano, M; Zamzami, N; Scoazec, M; Durand, S; Enot, DP; Fernández, ÁF; Martins, I; Kepp, O; Senovilla, L; Bauvy, C; Morselli, E; Vacchelli, E; Bennetzen, M; Magnes, C; Sinner, F; Pieber, T; López-Otín, C; Maiuri, MC; Codogno, P; Andersen, JS; Hill, JA; Madeo, F; Kroemer, G.
Regulation of autophagy by cytosolic acetyl-coenzyme A.
Mol Cell. 2014; 53(5):710-725
Doi: 10.1016/j.molcel.2014.01.016
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- Co-Autor*innen der Med Uni Graz
- Fuchs Aleksandra
- Harger Alexandra
- Pieber Thomas
- Sinner Frank Michael
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- Abstract:
- Acetyl-coenzyme A (AcCoA) is a major integrator of the nutritional status at the crossroads of fat, sugar, and protein catabolism. Here we show that nutrient starvation causes rapid depletion of AcCoA. AcCoA depletion entailed the commensurate reduction in the overall acetylation of cytoplasmic proteins, as well as the induction of autophagy, a homeostatic process of self-digestion. Multiple distinct manipulations designed to increase or reduce cytosolic AcCoA led to the suppression or induction of autophagy, respectively, both in cultured human cells and in mice. Moreover, maintenance of high AcCoA levels inhibited maladaptive autophagy in a model of cardiac pressure overload. Depletion of AcCoA reduced the activity of the acetyltransferase EP300, and EP300 was required for the suppression of autophagy by high AcCoA levels. Altogether, our results indicate that cytosolic AcCoA functions as a central metabolic regulator of autophagy, thus delineating AcCoA-centered pharmacological strategies that allow for the therapeutic manipulation of autophagy. Copyright © 2014 Elsevier Inc. All rights reserved.
- Find related publications in this database (using NLM MeSH Indexing)
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