Actin-myosin-based contraction is responsible for apoptotic nuclear disintegration.
Actin-myosin-based contraction is responsible for apoptotic nuclear disintegration.
复制标题
基于肌动蛋白肌球蛋白的收缩负责凋亡的核崩解。
DOI:
10.1083/jcb.200409049
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发表时间:
2005-01-17
影响因子:
7.8
通讯作者:
Olson, MF
中科院分区:
文献类型:
--
作者:
Croft, DR;Coleman, ML;Li, SX;Robertson, D;Sullivan, T;Stewart, CL;Olson, MF
Membrane blebbing during the apoptotic execution phase results from caspase-mediated cleavage and activation of ROCK I. Here, we show that ROCK activity, myosin light chain (MLC) phosphorylation, MLC ATPase activity, and an intact actin cytoskeleton, but not microtubular cytoskeleton, are required for disruption of nuclear integrity during apoptosis. Inhibition of ROCK or MLC ATPase activity, which protect apoptotic nuclear integrity, does not affect caspase-mediated degradation of nuclear proteins such as lamins A, B1, or C. The conditional activation of ROCK I was sufficient to tear apart nuclei in lamin A/C null fibroblasts, but not in wild-type fibroblasts. Thus, apoptotic nuclear disintegration requires actin-myosin contractile force and lamin proteolysis, making apoptosis analogous to, but distinct from, mitosis where nuclear disintegration results from microtubule-based forces and from lamin phosphorylation and depolymerization.
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影响因子:
4.8
作者:
Apel, ED;Lewis, RM;Sanes, JR
通讯作者:
Sanes, JR
影响因子:
4.4
作者:
Cocca, BA;Cline, AM;Radic, MZ
通讯作者:
Radic, MZ
影响因子:
11.2
作者:
Croft, DR;Sahai, E;Olson, MF
通讯作者:
Olson, MF
DOI:
10.1083/jcb.147.5.1023
发表时间:
1999-11-29
期刊:
The Journal of cell biology
影响因子:
--
作者:
Kawano Y;Fukata Y;Oshiro N;Amano M;Nakamura T;Ito M;Matsumura F;Inagaki M;Kaibuchi K
通讯作者:
Kaibuchi K
影响因子:
4.8
作者:
Ohashi, K;Nagata, K;Mizuno, K
通讯作者:
Mizuno, K