Caspase-3 activation via mitochondria is required for long-term depression and AMPA receptor internalization.
Caspase-3 activation via mitochondria is required for long-term depression and AMPA receptor internalization.
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DOI:
10.1016/j.cell.2010.03.053
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发表时间:
2010-05-28
期刊:
影响因子:
64.5
通讯作者:
Sheng M
中科院分区:
文献类型:
--
作者:
Li Z;Jo J;Jia JM;Lo SC;Whitcomb DJ;Jiao S;Cho K;Sheng M
NMDA receptor-dependent synaptic modifications, such as long-term potentiation (LTP) and long-term depression (LTD), are essential for brain development and function. LTD occurs mainly by the removal of AMPA receptors from the postsynaptic membrane, but the underlying molecular mechanisms remain unclear. Here we show that activation of caspase-3 via mitochondria is required for LTD and AMPA receptor internalization in hippocampal neurons. LTD and AMPA receptor internalization are blocked by peptide inhibitors of caspase-3 and -9. In hippocampal slices from caspase-3 knockout mice, LTD is abolished whereas LTP remains normal. LTD is also prevented by overexpression of the anti-apoptotic proteins XIAP or Bcl-xL, and by a mutant Akt1 protein that is resistant to caspase-3 proteolysis. NMDA receptor stimulation that induces LTD transiently activates caspase-3 in dendrites, without causing cell death. These data indicate an unexpected causal link between the molecular mechanisms of apoptosis and LTD.
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影响因子:
4.8
作者:
Garcia-Calvo, M;Peterson, EP;Thornberry, NA
通讯作者:
Thornberry, NA
DOI:
10.1073/pnas.0711647105
发表时间:
2008-02-12
影响因子:
11.1
作者:
Li, Hongmei;Chen, Yingbei;Jonas, Elizabeth A.
通讯作者:
Jonas, Elizabeth A.
影响因子:
11.4
作者:
Pacher, P;Hajnóczky, G
通讯作者:
Hajnóczky, G
影响因子:
64.5
作者:
Li, Z;Okamoto, K;Sheng, M
通讯作者:
Sheng, M
影响因子:
11.4
作者:
Deveraux, QL;Roy, N;Reed, JC
通讯作者:
Reed, JC