SR/ER-mitochondrial local communication: calcium and ROS.

SR/ER-mitochondrial local communication: calcium and ROS.
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DOI:
10.1016/j.bbabio.2009.06.004
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发表时间:
2009-11
影响因子:
4.3
通讯作者:
Hajnoczky, Gyoergy
Hajnoczky, Gyoergy
中科院分区:
生物学2区
文献类型:
--
作者:
Csordas, Gyoergy;Hajnoczky, Gyoergy

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线粒体与肌浆网/内质网(SR/ER)形成连接,其支持信号转导和生物合成途径并影响细胞器分布。最近,这些连接受到关注,因为它们在介导钙信号传播到线粒体中的关键作用,这对ATP产生和线粒体细胞死亡都很重要。许多SR/ER-线粒体钙转运蛋白和信号蛋白对氧化还原调节敏感,并直接暴露于线粒体和SR/ER中产生的活性氧(ROS)。虽然ROS已成为一种新的信号实体,SR/ER-线粒体界面的氧化还原信号尚未得到阐明。我们在这里描述了可能的机制之间的相互作用的本地Ca 2+和ROS信号在SR/ER线粒体功能的控制。
Mitochondria form junctions with the sarco/endoplasmic reticulum (SR/ER), which support signal transduction and biosynthetic pathways and affect organellar distribution. Recently, these junctions have received attention because of their pivotal role in mediating calcium signal propagation to the mitochondria, which is important for both ATP production and mitochondrial cell death. Many of the SR/ER-mitochondrial calcium transporters and signaling proteins are sensitive to redox regulation and are directly exposed to the reactive oxygen species (ROS) produced in the mitochondria and SR/ER. Although ROS has been emerging as a novel signaling entity, the redox signaling of the SR/ER-mitochondrial interface is yet to be elucidated. We describe here possible mechanisms of the mutual interaction between local Ca2+ and ROS signaling in the control of SR/ER-mitochondrial function.
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