NDLI: Influenza A Virus-induced expression of ISG20 inhibits viral replication by interacting with nucleoprotein

Content Provider	Springer Nature Link
Author	Qu, Hongren Li, Jing Yang, Limin Sun, Lei Liu, Wenjun He, Hongxuan
Copyright Year	2016
Abstract	Influenza A virus (IAV) is an important pathogen that has a wide range of hosts and represents a threat to the health of humans and several animal species. IAV infection can induce the transcription of many genes in the host. In the present study, we demonstrated for the first time that three different strains of H1N1 IAV induce the expression of an IFN-stimulated gene, ISG20. We determined the antiviral activity of ISG20 against IAV because ISG20 inhibited viral protein expression and reduced the progeny viral titer dependent upon its exonuclease activity. To elucidate the detailed mechanism of ISG20, we further demonstrated that ISG20 impairs the polymerase activity and inhibits both the replication and transcription levels of the M1 and NP genes. Notably, we identified that ISG20 colocalizes and interacts with NP during IAV infection, while exonuclease-inactive mutant ISG20 lacked association with NP, indicating that ISG20 inhibits IAV replication by interacting with NP. Together, these data provide a detailed explanation for the specific antiviral action of ISG20 and suggest that ISG20 may act as a promising antiviral drug candidate against IAV.
Starting Page	759
Ending Page	767
Page Count	9
File Format	PDF
ISSN	09208569
Journal	Virus Genes
Volume Number	52
Issue Number	6
e-ISSN	1572994X
Language	English
Publisher	Springer US
Publisher Date	2016-06-24
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	IFN-stimulated gene Polymerase activity Exonuclease Medical Microbiology Virology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Virology Genetics Medicine Molecular Biology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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