The multiple functions of cytochrome c and their regulation in life and death decisions of the mammalian cell: From respiration to apoptosis.

The multiple functions of cytochrome c and their regulation in life and death decisions of the mammalian cell: From respiration to apoptosis.
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细胞色素 c 的多种功能及其对哺乳动物细胞生死决定的调节:从呼吸到细胞凋亡。

DOI:
10.1016/j.mito.2011.01.010
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发表时间:
2011-05
期刊:
影响因子:
4.4
通讯作者:
Lee, Icksoo
Lee, Icksoo
中科院分区:
生物学3区
文献类型:
--
作者:
Huettemann, Maik;Pecina, Petr;Rainbolt, Matthew;Sanderson, Thomas H.;Kagan, Valerian E.;Samavati, Lobelia;Doan, Jeffrey W.;Lee, Icksoo

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细胞色素c(Cytc)在线粒体电子传递和内源性II型细胞凋亡中是必不可少的。哺乳动物Cytc还在健康条件下清除活性氧(ROS),与辅因子p66Shc一起产生ROS,并在细胞凋亡期间氧化心磷脂。最近的发现,细胞色素在体内磷酸化的细胞色素调节在作出生死决定的关键作用的模型的基础。提出了一个凋亡事件序列,涉及Cytc磷酸化的变化,通过增加线粒体膜电位或p66Shc途径增加ROS,Cytc氧化心磷脂及其从线粒体释放。细胞色素调节呼吸和细胞死亡的人类疾病的背景下,包括神经退行性疾病和心血管疾病,癌症和败血症进行了讨论。
Cytochrome c (Cytc) is essential in mitochondrial electron transport and intrinsic type II apoptosis. Mammalian Cytc also scavenges reactive oxygen species (ROS) under healthy conditions, produces ROS with the co-factor p66Shc, and oxidizes cardiolipin during apoptosis. The recent finding that Cytc is phosphorylated in vivo underpins a model for the pivotal role of Cytc regulation in making life and death decisions. An apoptotic sequence of events is proposed involving changes in Cytc phosphorylation, increased ROS via increased mitochondrial membrane potentials or the p66Shc pathway, the oxidation of cardiolipin by Cytc, and its release from the mitochondria. Cytc regulation in respiration and cell death is discussed in a human disease context including neurodegenerative and cardiovascular diseases, cancer, and sepsis.
DOI: 10.1074/jbc.271.26.15498
发表时间: 1996-06-28
影响因子: 4.8
作者:
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