Japanese encephalitis virus activates autophagy as a viral immune evasion strategy.
Japanese encephalitis virus activates autophagy as a viral immune evasion strategy.
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日本脑炎病毒激活自噬作为病毒免疫逃避策略
DOI:
10.1371/journal.pone.0052909
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Xiao G
中科院分区:
文献类型:
--
作者:
Jin R;Zhu W;Cao S;Chen R;Jin H;Liu Y;Wang S;Wang W;Xiao G
In addition to manipulating cellular homeostasis and survivability, autophagy also plays a crucial role in numerous viral infections. In this study, we discover that Japanese encephalitis virus (JEV) infection results in the accumulation of microtubule-associated protein 1 light chain 3-II (LC3-II) protein and GFP-LC3 puncta in vitro and an increase in autophagosomes/autolysosomes in vivo. The fusion between autophagosomes and lysosomes is essential for virus replication. Knockdown of autophagy-related genes reduced JEV replication in vitro, as indicated by viral RNA and protein levels. We also note that JEV infection in autophagy-impaired cells displayed active caspases cleavage and cell death. Moreover, we find that JEV induces higher type I interferon (IFN) activation in cells deficient in autophagy-related genes as the cells exhibited increased phosphorylation and dimerization of interferon regulatory factor 3 (IRF3) and mitochondrial antiviral signaling protein (MAVS) aggregation. Finally, we find that autophagy is indispensable for efficient JEV replication even in an IFN-defective background. Overall, our studies provide the first description of the mechanism of the autophagic innate immune signaling pathway during JEV infection.
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影响因子:
3.1
作者:
Li, Yaoming;Hou, Lidan;Cao, Shengbo
通讯作者:
Cao, Shengbo
影响因子:
13.3
作者:
Chen, Rui;Jin, Rui;Xiao, Gengfu
通讯作者:
Xiao, Gengfu
DOI:
10.1073/pnas.95.17.9837
发表时间:
1998-08-18
影响因子:
11.1
作者:
Juang, YT;Lowther, W;Pitha, PM
通讯作者:
Pitha, PM
DOI:
10.1073/pnas.96.10.5752
发表时间:
1999-05-11
影响因子:
11.1
作者:
Krajewski, S;Krajewska, M;Reed, JC
通讯作者:
Reed, JC
影响因子:
5.4
作者:
Li, Jianhua;Liu, Yinghui;Yuan, Zhenghong
通讯作者:
Yuan, Zhenghong