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The mitochondrial metabolic function of DJ‐1 is modulated by 14‐3‐3β
Author(s) -
Weinert Maria,
Millet Aurelie,
Jonas Elizabeth A.,
Alavian Kambiz N.
Publication year - 2019
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fj.201802754r
Subject(s) - microbiology and biotechnology , mitochondrion , neurodegeneration , oxidative phosphorylation , biology , cytosol , glycolysis , metabolism , biochemistry , disease , medicine , enzyme
Mitochondrial metabolic plasticity is a key adaptive mechanism in response to changes in cellular metabolic demand. Changes in mitochondrial metabolic efficiency have been linked to pathophysiological conditions, including cancer, neurodegeneration, and obesity. The ubiquitously expressed DJ‐1 (Parkinsonism‐associated deglycase) is known as a Parkinson's disease gene and an oncogene. The pleiotropic functions of DJ‐1 include reactive oxygen species scavenging, RNA binding, chaperone activity, endocytosis, and modulation of major signaling pathways involved in cell survival and metabolism. Nevertheless, how these functions are linked to the role of DJ‐1 in mitochondrial plasticity is not fully understood. In this study, we describe an interaction between DJ‐1 and 14‐3‐3β that regulates the localization of DJ‐1 , in a hypoxia‐dependent manner, either to the cytosol or to mitochondria. This interaction acts as a modulator of mitochondrial metabolic efficiency and a switch between glycolysis and oxidative phosphorylation. Modulation of this novel molecular mechanism of mitochondrial metabolic efficiency is potentially involved in the neuroprotective function of DJ‐1 as well as its role in proliferation of cancer cells.—Weinert, M., Millet, A., Jonas, E. A., Alavian, K. N. The mitochondrial metabolic function of DJ‐1 is modulated by 14‐3‐3β . FASEB J. 33, 8925–8934 (2019). www.fasebj.org .