The SARS-Coronavirus Membrane protein induces apoptosis through modulating the Akt survival pathway.

The SARS-Coronavirus Membrane protein induces apoptosis through modulating the Akt survival pathway.
复制标题

SARS-核纳病毒膜蛋白通过调节Akt存活途径诱导凋亡。

DOI:
10.1016/j.abb.2007.01.012
复制
发表时间:
2007-03-15
影响因子:
3.9
通讯作者:
Chan HY
Chan HY
中科院分区:
生物学3区
文献类型:
--
作者:
Chan CM;Ma CW;Chan WY;Chan HY

文献摘要

参考文献

被引文献

相似文献

许多病毒基因产物能够通过干扰细胞信号级联(包括Akt激酶途径)触发凋亡性细胞死亡。在这项研究中,SARS-CoV膜(M)结构蛋白的促凋亡作用进行了描述。我们发现SARS-CoV M蛋白在HEK 293 T细胞和转基因果蝇中均诱导凋亡。我们进一步表明,M蛋白诱导的细胞凋亡涉及线粒体释放细胞色素c蛋白,并可以抑制半胱天冬酶抑制剂。M的过度表达导致了一个显性粗糙的眼睛表型在成年果蝇。通过进行正向遗传修饰筛选,我们确定了磷酸肌醇依赖性激酶-1(PDK-1)作为M诱导的凋亡细胞死亡的主要抑制因子。PDK-1和Akt激酶都在细胞存活信号通路中发挥重要作用。总之,我们的数据表明,SARS冠状病毒M蛋白诱导细胞凋亡,通过调节细胞Akt促生存途径和线粒体细胞色素c的释放。
A number of viral gene products are capable of triggering apoptotic cell death through interfering with cellular signaling cascades, including the Akt kinase pathway. In this study, the pro-apoptotic role of the SARS-CoV Membrane (M) structural protein is described. We found that the SARS-CoV M protein induced apoptosis in both HEK293T cells and transgenic Drosophila. We further showed that M protein-induced apoptosis involved mitochondrial release of cytochrome c protein, and could be suppressed by caspase inhibitors. Over-expression of M caused a dominant rough-eye phenotype in adult Drosophila. By performing a forward genetic modifier screen, we identified phosphoinositide-dependent kinase-1 (PDK-1) as a dominant suppressor of M-induced apoptotic cell death. Both PDK-1 and Akt kinases play essential roles in the cell survival signaling pathway. Altogether, our data show that SARS-CoV M protein induces apoptosis through the modulation of the cellular Akt pro-survival pathway and mitochondrial cytochrome c release.
DOI: 10.1099/vir.0.80813-0
发表时间: 2005-07-01
影响因子: 3.8
作者:
Law, PTW;Wong, CH;Tsui, SKW
通讯作者: Tsui, SKW
DOI: 10.1007/s00705-005-0632-8
发表时间: 2006-03
影响因子: 2.7
作者:
Bordi L;Castilletti C;Falasca L;Ciccosanti F;Calcaterra S;Rozera G;Di Caro A;Zaniratti S;Rinaldi A;Ippolito G;Piacentini M;Capobianchi MR
通讯作者: Capobianchi MR
DOI: 10.1002/cm.20070
发表时间: 2005-07-01
影响因子: --
作者:
Battaglia, PA;Ponti, D;Gigliani, F
通讯作者: Gigliani, F
DOI: 10.1073/pnas.101596998
发表时间: 2001-05-22
影响因子: 11.1
作者:
Cho, KS;Lee, JH;Chung, J
通讯作者: Chung, J
DOI: 10.1534/genetics.105.042572
发表时间: 2005-11-01
期刊: GENETICS
影响因子: 3.3
作者:
Adamson, AL;Wright, N;LaJeunesse, DR
通讯作者: LaJeunesse, DR