Mitochondrial Ca2+ uptake: tortoise or hare?

Mitochondrial Ca2+ uptake: tortoise or hare?
复制标题

线粒体Ca2+摄取:乌龟还是野兔?

DOI:
10.1016/j.yjmcc.2008.12.011
复制
发表时间:
2009-06
影响因子:
5
通讯作者:
Blatter, Lothar A.
Blatter, Lothar A.
中科院分区:
医学2区
文献类型:
--
作者:
O'Rourke, Brian;Blatter, Lothar A.

文献摘要

参考文献

被引文献

相似文献

线粒体配备有高效的 Ca2+ 吸收和挤出机制,并且能够储存大量的 Ca2+ 离子。此外,线粒体代谢(ATP 产生)的关键步骤是 Ca2+ 依赖性的。在心脏生理学和病理生理学领域,两个主要问题主导了关于心脏线粒体功能的思考:1)线粒体 Ca2+ 缓冲如何影响细胞质 Ca2+ 水平并影响兴奋-收缩耦合,特别是逐搏基础上的 Ca2+ 瞬态;2)线粒体 Ca2+ 稳态如何影响心脏能量代谢。为了回答这些问题,需要彻底了解线粒体 Ca2+ 转运和缓冲能力的动力学。在这里,我们总结了线粒体 Ca2+ 信号传导在心脏中的作用,讨论了支持或反对 Ca2+ 在兴奋-收缩耦合过程中可以被线粒体快速吸收这一观点的证据,并强调了一些值得进一步研究的有趣新领域。
Mitochondria are equipped with an efficient machinery for Ca2+ uptake and extrusion and are capable of storing large amounts of Ca2+ ions. Furthermore, key steps of mitochondrial metabolism (ATP production) are Ca2+-dependent. In the field of cardiac physiology and pathophysiology, two main questions have dominated the thinking about mitochondrial function in the heart: 1) how does mitochondrial Ca2+ buffering shape cytosolic Ca2+ levels and affect excitation-contraction coupling, particularly the Ca2+ transient, on a beat-to-beat basis, and 2) how does mitochondrial Ca2+ homeostasis influence cardiac energy metabolism. To answer these questions a thorough understanding of the kinetics of mitochondrial Ca2+ transport and buffer capacity is required. Here, we summarize the role of mitochondrial Ca2+ signaling in the heart, discuss the evidence either supporting or arguing against the idea that Ca2+ can be taken up rapidly by mitochondria during excitation-contraction coupling and highlight some interesting new areas for further investigation.
DOI: 10.1038/176250a0
发表时间: 1955-01-01
期刊: NATURE
影响因子: 64.8
作者:
CHANCE, B;WILLIAMS, GR
通讯作者: WILLIAMS, GR
DOI: 10.1152/ajpheart.1993.264.2.h433
发表时间: 1993-02-01
影响因子: --
作者:
HEINEMAN, FW;BALABAN, RS
通讯作者: BALABAN, RS
DOI: 10.1098/rspb.1984.0091
发表时间: 1984-01-01
期刊: PROCEEDINGS OF THE ROYAL SOCIETY SERIES B-BIOLOGICAL SCIENCES
影响因子: --
作者:
FRY, CH;POWELL, T;WARD, JPT
通讯作者: WARD, JPT
DOI: 10.1113/jphysiol.2007.149294
发表时间: 2008-03-01
影响因子: 5.5
作者:
Belmonte, Stephen;Morad, Martin
通讯作者: Morad, Martin
DOI: 10.1083/jcb.142.4.975
发表时间: 1998-08-24
期刊: The Journal of cell biology
影响因子: --
作者:
Duchen MR;Leyssens A;Crompton M
通讯作者: Crompton M