Involvement of Noxa in mediating cellular ER stress responses to lytic virus infection.
Involvement of Noxa in mediating cellular ER stress responses to lytic virus infection.
复制标题
DOI:
10.1016/j.virol.2011.06.010
复制
发表时间:
2011-09-01
期刊:
影响因子:
3.7
通讯作者:
Leaman DW
中科院分区:
文献类型:
--
作者:
Rosebeck S;Sudini K;Chen T;Leaman DW
Noxa is a Bcl-2 homology domain-containing pro-apoptotic mitochondrial protein. Noxa mRNA and protein expression are upregulated by dsRNA or virus, and ectopic Noxa expression enhances cellular sensitivity to virus or dsRNA-induced apoptosis. Here we demonstrate that Noxa null baby mouse kidney (BMK) cells are deficient in normal cytopathic response to lytic viruses, and that reconstitution of the knockout cells with wild type Noxa restored normal cytopathic responses. Noxa regulation by virus mirrored its regulation by proteasome inhibitors or ER stress inducers and the ER stress response inhibitor salubrinal protected cells against viral cytopathic effects. Noxa mRNA and protein were synergistically upregulated by IFN or dsRNA when combined with ER stress inducers, leading to Noxa/Mcl-1 interaction, activation of Bax and pro-apoptotic caspases, degradation of Mcl-1, loss of mitochondrial membrane potential and initiation of apoptosis. These data highlight the importance of ER stress in augmenting the expression of Noxa following viral infection.
登录
查看更多内容
影响因子:
7.2
作者:
Jüllig, M;Zhang, WV;Stott, NS
通讯作者:
Stott, NS
影响因子:
3.9
作者:
Haller, Otto;Staeheli, Peter;Kochs, Georg
通讯作者:
Kochs, Georg
影响因子:
5.7
作者:
Kim J;Guan J;Chang I;Chen X;Han D;Wang CY
通讯作者:
Wang CY
影响因子:
8
作者:
Hassan, M.;Alaoui, A.;Hengge, U. R.
通讯作者:
Hengge, U. R.
影响因子:
4.8
作者:
BANDYOPADHYAY, SK;LEONARD, GT;SEN, GC
通讯作者:
SEN, GC