Calcium and apoptosis: ER-mitochondria Ca2+ transfer in the control of apoptosis.

Calcium and apoptosis: ER-mitochondria Ca2+ transfer in the control of apoptosis.
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DOI:
10.1038/onc.2008.308
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发表时间:
2008-10-27
期刊:
影响因子:
8
通讯作者:
Rizzuto, R.
Rizzuto, R.
中科院分区:
医学1区
文献类型:
--
作者:
Pinton, P.;Giorgi, C.;Siviero, R.;Zecchini, E.;Rizzuto, R.

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There is a growing consensus that the various forms of cell death (necrosis, apoptosis and autophagy) are not separated by strict boundaries, but rather share molecular effectors and signaling routes. Among the latter, a clear role is played by calcium (Ca2+), the ubiquitous second messenger involved in the control of a broad variety of physiological events. Fine tuning of intracellular Ca2+ homeostasis by anti- and proapoptotic proteins shapes the Ca2+ signal to which mitochondria and other cellular effectors are exposed, and hence the efficiency of various cell death inducers. Here, we will review: (i) the evidence linking calcium homeostasis to the regulation of apoptotic, and more recently autophagic cell death, (ii) the discussion of mitochondria as a critical, although not unique checkpoint and (iii) the molecular and functional elucidation of ER/mitochondria contacts, corresponding to the mitochondria-associated membrane (MAM) subfraction and proposed to be a specialized signaling microdomain.
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