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Review
. 2017 Aug;1858(8):633-640.
doi: 10.1016/j.bbabio.2016.12.008. Epub 2016 Dec 23.

Dysregulation of mitophagy in carcinogenesis and tumor progression

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Free article
Review

Dysregulation of mitophagy in carcinogenesis and tumor progression

Joon Young Chang et al. Biochim Biophys Acta Bioenerg. 2017 Aug.
Free article

Abstract

The mitochondrial role in carcinogenesis and cancer progression is an area of active research, with many unresolved questions. Various aspects of altered mitochondrial function have been implicated in tumorigenesis and tumor progression, including mitochondrial dysfunction, a metabolic switch to aerobic glycolysis, and dysregulation of mitophagy. Mitophagy is a highly specific quality control process which eliminates dysfunctional mitochondria and promotes mitochondrial turnover, and is involved in the adaptation to nutrient stress by controlling mitochondrial mass. The dysregulation of mitochondrial turnover has both a positive and negative role in cancer. This review will begin with a basic overview of the molecular mechanisms of mitophagy, and highlight recent trends in mitophagy from cancer studies. We will conclude this review by discussing areas of research in normal mitophagy that have yet to be explored in the context of cancer such as mitochondrial proteases, the mitochondrial unfolded protein response, and mitokine action. This article is part of a Special Issue entitled Mitochondria in Cancer, edited by Giuseppe Gasparre, Rodrigue Rossignol and Pierre Sonveaux.

Keywords: Cancer; Mitochondrial unfolded protein response; Mitokine; Mitophagy.

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