酿酒酵母中的线粒体自噬与线粒体动力学

Mitophagy and mitochondrial dynamics in Saccharomyces cerevisiae.

作者信息

Müller Matthias, Lu Kaihui, Reichert Andreas S

机构信息

Mitochondrial Biology, Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt am Main, Germany; Mitochondrial Biology, Medical School, Goethe University Frankfurt am Main, Germany.

Institute of Biochemistry and Molecular Biology I, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany.

出版信息

Biochim Biophys Acta. 2015 Oct;1853(10 Pt B):2766-74. doi: 10.1016/j.bbamcr.2015.02.024. Epub 2015 Mar 6.

Abstract

Mitochondria fulfill central cellular functions including energy metabolism, iron-sulfur biogenesis, and regulation of apoptosis and calcium homeostasis. Accumulation of dysfunctional mitochondria is observed in ageing and many human diseases such as cancer and various neurodegenerative disorders. Appropriate quality control of mitochondria is important for cell survival in most eukaryotic cells. One important pathway in this respect is mitophagy, a selective form of autophagy which removes excess and dysfunctional mitochondria. In the past decades a series of essential factors for mitophagy have been identified and characterized. However, little is known about the molecular mechanisms regulating mitophagy. The role of mitochondrial dynamics in mitophagy is controversially discussed. Here we will review recent advances in this context promoting our understanding on the molecular regulation of mitophagy in Saccharomyces cerevisiae and on the role of mitochondrial dynamics in mitochondrial quality control.

摘要

线粒体履行着核心的细胞功能,包括能量代谢、铁硫生物合成以及细胞凋亡和钙稳态的调节。在衰老以及许多人类疾病(如癌症和各种神经退行性疾病)中,都观察到功能失调的线粒体的积累。对大多数真核细胞而言,适当的线粒体质量控制对细胞存活很重要。在这方面,一个重要的途径是线粒体自噬,这是一种选择性自噬形式,可清除多余和功能失调的线粒体。在过去几十年中,已经鉴定并表征了一系列线粒体自噬的关键因子。然而,关于调节线粒体自噬的分子机制却知之甚少。线粒体动力学在线粒体自噬中的作用存在争议。在此,我们将综述这方面的最新进展,以增进我们对酿酒酵母中线粒体自噬分子调控以及线粒体动力学在线粒体质量控制中的作用的理解。

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