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Role of mitochondrial ion channels in cell death

机译:线粒体离子通道在细胞死亡中的作用

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Ion channels located in the outer and inner mitochondria(membranes are key regulators of cellular signaling for life and death. Permeabilization of mitochondrial membranes is one of the most critical steps in the progression of several cell death pathways. The mitochondria(apoptosis-induced channel (MAC) and the mitochondrial permeability transition pore (mPTP) play major roles in these processes. Here, the most recent progress and current perspectives about the roles of MAC and mPTP in mitochondrial membrane permeabilization during cell death are presented. The crosstalk signaling of MAC and mPTP formation/activation mediated by cytosolic Ca2+ signaling, Bcl-2 family proteins, and other mitochondrial ion channels is also discussed. Understanding the mechanisms that regulate opening and closing of MAC and mPTP has revealed new therapeutic targets that potentially could control cell death in pathologies such as cancer, ischemia/reperfusion injuries, and neurodegenerative diseases. (C) 2010 International Union of Biochemistry and Molecular Biology, Inc. Volume 36, Number 4, July/August 2010, Pages 255-263 . E-mail: kclu@nyu.edu
机译:位于外部和内部线粒体中的离子通道(膜是生命和死亡的细胞信号传导的关键调节剂。线粒体膜的透化作用是几种细胞死亡途径进展中最关键的步骤之一。线粒体(凋亡诱导的通道( MAC)和线粒体通透性过渡孔(mPTP)在这些过程中起着主要作用,在此,对MAC和mPTP在细胞死亡过程中在线粒体膜通透性中的作用的最新进展和当前观点进行了阐述,MAC和还讨论了由胞质Ca2 +信号传导,Bcl-2家族蛋白和其他线粒体离子通道介导的mPTP形成/激活,了解调控MAC和mPTP开启和关闭的机制揭示了新的治疗靶标,该靶标可能在病理学中控制细胞死亡。例如癌症,缺血/再灌注损伤和神经退行性疾病(C)2 010国际生物化学与分子生物学联合会,第36卷,第4期,2010年7月/ 8月,第255-263页。电子邮件:kclu@nyu.edu

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