Cytochrome c maintains mitochondrial transmembrane potential and ATP generation after outer mitochondrial membrane permeabilization during the apoptotic process.
Cytochrome c maintains mitochondrial transmembrane potential and ATP generation after outer mitochondrial membrane permeabilization during the apoptotic process.
复制标题
细胞色素 c 在细胞凋亡过程中线粒体外膜透化后维持线粒体跨膜电位和 ATP 生成。
DOI:
10.1083/jcb.153.2.319
复制
发表时间:
2001-04-16
影响因子:
7.8
通讯作者:
Green, DR
中科院分区:
文献类型:
--
作者:
Waterhouse, NJ;Goldstein, JC;von Ahsen, O;Schuler, M;Newmeyer, DD;Green, DR
During apoptosis, cytochrome c is released into the cytosol as the outer membrane of mitochondria becomes permeable, and this acts to trigger caspase activation. The consequences of this release for mitochondrial metabolism are unclear. Using single-cell analysis, we found that when caspase activity is inhibited, mitochondrial outer membrane permeabilization causes a rapid depolarization of mitochondrial transmembrane potential, which recovers to original levels over the next 30–60 min and is then maintained. After outer membrane permeabilization, mitochondria can use cytoplasmic cytochrome c to maintain mitochondrial transmembrane potential and ATP production. Furthermore, both cytochrome c release and apoptosis proceed normally in cells in which mitochondria have been uncoupled. These studies demonstrate that cytochrome c release does not affect the integrity of the mitochondrial inner membrane and that, in the absence of caspase activation, mitochondrial functions can be maintained after the release of cytochrome c.
登录
查看更多内容
影响因子:
64.5
作者:
Du, CY;Fang, M;Wang, XD
通讯作者:
Wang, XD
影响因子:
64.5
作者:
Ichas, F;Jouaville, LS;Mazat, JP
通讯作者:
Mazat, JP
影响因子:
3.5
作者:
Köhler, C;Gahm, A;Zhivotovsky, B
通讯作者:
Zhivotovsky, B
影响因子:
3.4
作者:
FARKAS, DL;WEI, MD;LOEW, LM
通讯作者:
LOEW, LM
影响因子:
3.4
作者:
Fink, C;Morgan, F;Loew, LM
通讯作者:
Loew, LM