Cellular Interleukin Enhancer-Binding Factor 2, ILF2, Inhibits Japanese Encephalitis Virus Replication In Vitro

Japanese encephalitis virus (JEV) is a zoonotic mosquito-borne flavivirus which is the leading causative agent of viral encephalitis in endemic regions. JEV NS3 is a component of the viral replicase complex and is a multifunctional protein. In this study, interleukin enhancer-binding factor 2 (ILF2)...

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Main Authors: Xiaofang Cui, Ping Qian, Tingting Rao, Yanming Wei, Fang Zhao, Huawei Zhang, Huanchun Chen, Xiangmin Li
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/11/6/559
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author Xiaofang Cui
Ping Qian
Tingting Rao
Yanming Wei
Fang Zhao
Huawei Zhang
Huanchun Chen
Xiangmin Li
author_facet Xiaofang Cui
Ping Qian
Tingting Rao
Yanming Wei
Fang Zhao
Huawei Zhang
Huanchun Chen
Xiangmin Li
author_sort Xiaofang Cui
collection DOAJ
description Japanese encephalitis virus (JEV) is a zoonotic mosquito-borne flavivirus which is the leading causative agent of viral encephalitis in endemic regions. JEV NS3 is a component of the viral replicase complex and is a multifunctional protein. In this study, interleukin enhancer-binding factor 2 (ILF2) is identified as a novel cellular protein interacting with NS3 through co-immunoprecipitation assay and LC-MS/MS. The expression of ILF2 is decreased in JEV-infected human embryonic kidney (293T) cells. The knockdown of endogenous ILF2 by special short hairpin RNA (shRNA) positively regulates JEV propagation, whereas the overexpression of ILF2 results in a significantly reduced JEV genome synthesis. Further analysis revealed that the knockdown of ILF2 positively regulates viral replication by JEV replicon system studies. These results suggest that ILF2 may act as a potential antiviral agent against JEV infection.
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spelling doaj.art-1a217c68d2344a26a8bca08e02019b122022-12-21T19:42:00ZengMDPI AGViruses1999-49152019-06-0111655910.3390/v11060559v11060559Cellular Interleukin Enhancer-Binding Factor 2, ILF2, Inhibits Japanese Encephalitis Virus Replication In VitroXiaofang Cui0Ping Qian1Tingting Rao2Yanming Wei3Fang Zhao4Huawei Zhang5Huanchun Chen6Xiangmin Li7State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, ChinaJapanese encephalitis virus (JEV) is a zoonotic mosquito-borne flavivirus which is the leading causative agent of viral encephalitis in endemic regions. JEV NS3 is a component of the viral replicase complex and is a multifunctional protein. In this study, interleukin enhancer-binding factor 2 (ILF2) is identified as a novel cellular protein interacting with NS3 through co-immunoprecipitation assay and LC-MS/MS. The expression of ILF2 is decreased in JEV-infected human embryonic kidney (293T) cells. The knockdown of endogenous ILF2 by special short hairpin RNA (shRNA) positively regulates JEV propagation, whereas the overexpression of ILF2 results in a significantly reduced JEV genome synthesis. Further analysis revealed that the knockdown of ILF2 positively regulates viral replication by JEV replicon system studies. These results suggest that ILF2 may act as a potential antiviral agent against JEV infection.https://www.mdpi.com/1999-4915/11/6/559Japanese encephalitis viruscellular interleukin enhancer-binding factor 2 (ILF2)antiviral activityviral RNA translation
spellingShingle Xiaofang Cui
Ping Qian
Tingting Rao
Yanming Wei
Fang Zhao
Huawei Zhang
Huanchun Chen
Xiangmin Li
Cellular Interleukin Enhancer-Binding Factor 2, ILF2, Inhibits Japanese Encephalitis Virus Replication In Vitro
Viruses
Japanese encephalitis virus
cellular interleukin enhancer-binding factor 2 (ILF2)
antiviral activity
viral RNA translation
title Cellular Interleukin Enhancer-Binding Factor 2, ILF2, Inhibits Japanese Encephalitis Virus Replication In Vitro
title_full Cellular Interleukin Enhancer-Binding Factor 2, ILF2, Inhibits Japanese Encephalitis Virus Replication In Vitro
title_fullStr Cellular Interleukin Enhancer-Binding Factor 2, ILF2, Inhibits Japanese Encephalitis Virus Replication In Vitro
title_full_unstemmed Cellular Interleukin Enhancer-Binding Factor 2, ILF2, Inhibits Japanese Encephalitis Virus Replication In Vitro
title_short Cellular Interleukin Enhancer-Binding Factor 2, ILF2, Inhibits Japanese Encephalitis Virus Replication In Vitro
title_sort cellular interleukin enhancer binding factor 2 ilf2 inhibits japanese encephalitis virus replication in vitro
topic Japanese encephalitis virus
cellular interleukin enhancer-binding factor 2 (ILF2)
antiviral activity
viral RNA translation
url https://www.mdpi.com/1999-4915/11/6/559
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