Evidence for hexagonal II phase lipid involvement in mitochondrial Ca2+ movements.

Evidence for hexagonal II phase lipid involvement in mitochondrial Ca2+ movements.
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六边形 II 相脂质参与线粒体 Ca2 运动的证据。

DOI:
10.1007/978-1-4757-0007-7_15
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发表时间:
1988
影响因子:
--
通讯作者:
P. Wolkowicz
P. Wolkowicz
中科院分区:
医学4区
文献类型:
--
作者:
P. Wolkowicz

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线粒体中基质钙离子的释放是由多种化合物引起的。棕榈酰辅酶A(P-CoA)(1)。将这些化合物加入含有钙离子的线粒体中,产生一段时间的线粒体钙释放和再积累,即钙循环,随后是大幅度肿胀、内膜去极化和净钙释放(2)。只有在反应介质(3)中有无机磷时,这些现象才会发生。这些观察结果是否与线粒体促进正常细胞内钙稳态的机制(S)有关仍有待确定。然而,在缺血等病理条件下,这种钙释放过程可能与基质钙含量和线粒体体积的变化有关(4)。
The release of matrix Ca2+ from mitochondria is induced by a variety of compounds, eg. palmitoyl-CoA (P-CoA) (1). Addition of these compounds to mitochondria which contain Ca2+ produces a period of mitochondrial Ca2+ release and reaccumulation, i.e. Ca2+ cycling, followed by large amplitude swelling, inner membrane depolarization and net Ca2+ release (2). These phenomena occur only if inorganic phosphate is in the reaction medium (3). Whether these observations are related to the mechanism(s) through which the mitochondrion contributes to Ca2+ homeostasis in the normal cell remains to be determined. However, under pathological conditions such as ischemia this process of Ca2+ release may relate to matrix Ca2+ content and mitochondrial volume changes observed (4).
Ca2 和 Mg2 在调节大鼠肝线粒体内源 K /H 交换器中的相对作用。
DOI: --
发表时间: 1982
期刊: The Journal of biological chemistry
影响因子: --
作者:
Nakashima,RA;Dordick,RS;Garlid,KD
通讯作者: Garlid,KD