Porcine alpha interferon inhibit Japanese encephalitis virus replication by different ISGs in vitro. 2013

Ke Liu, and Xuewen Liao, and Bin Zhou, and Huijuan Yao, and Shengchao Fan, and Puyan Chen, and Denian Miao
Key Laboratory of Animal Disease Diagnosis and Immunology, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, No. 518, Ziyue Road, Shanghai 200241, PR China. Electronic address: keliu1982@aliyun.com.

Japanese encephalitis virus (JEV) causes serious zoonosis in South Asia, Southeast Asia and other areas. Pigs are an important reservoir for this virus in nature. The treatment of JEV infection in pigs is important for controlling the prevalence of JEV in humans and economic losses in pig farming. In this study, we selected a high activity porcine alpha-interferon to inhibit JEV replication in porcine kidney cell lines (PK-15). Alpha interferon exhibited high antiviral activity against JEV; the expression of three interferon-stimulated genes (ISGs), ISG15, Mx2 and OAS L, increased significantly after interferon treatment. Furthermore, we verified the anti-JEV effect of these ISGs by RNAi and overexpression. Mx2 and OAS L exhibited strong anti-JEV effects in PK-15 cells. Based on these novel results, alpha interferon (IFN-α) should be considered to be a potential drug against JEV in pigs.

UI MeSH Term Description Entries
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D004664 Encephalitis Virus, Japanese A species of FLAVIVIRUS, one of the Japanese encephalitis virus group (ENCEPHALITIS VIRUSES, JAPANESE), which is the etiological agent of Japanese encephalitis found in Asia, southeast Asia, and the Indian subcontinent. Japanese B Encephalitis Virus,Japanese Encephalitis Virus,Virus, Japanese Encephalitis
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013552 Swine Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA). Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog
D014779 Virus Replication The process of intracellular viral multiplication, consisting of the synthesis of PROTEINS; NUCLEIC ACIDS; and sometimes LIPIDS, and their assembly into a new infectious particle. Viral Replication,Replication, Viral,Replication, Virus,Replications, Viral,Replications, Virus,Viral Replications,Virus Replications
D016898 Interferon-alpha One of the type I interferons produced by peripheral blood leukocytes or lymphoblastoid cells. In addition to antiviral activity, it activates NATURAL KILLER CELLS and B-LYMPHOCYTES, and down-regulates VASCULAR ENDOTHELIAL GROWTH FACTOR expression through PI-3 KINASE and MAPK KINASES signaling pathways. Interferon Alfa,Interferon, Leukocyte,Interferon, Lymphoblast,alpha-Interferon,IFN-alpha D,IFN-alpha5,Interferon alpha-1,Interferon alpha-17,Interferon alpha-4,Interferon alpha-5,Interferon alpha-7,Interferon alpha-88,Interferon alpha-J,Interferon alpha-T,Interferon alpha4,Interferon alpha5,Interferon, Lymphoblastoid,Interferon, alpha,LeIF I,LeIF J,Leif D,IFN alpha D,IFN alpha5,Interferon alpha,Interferon alpha 1,Interferon alpha 17,Interferon alpha 4,Interferon alpha 5,Interferon alpha 7,Interferon alpha 88,Interferon alpha J,Interferon alpha T,Leukocyte Interferon,Lymphoblast Interferon,Lymphoblastoid Interferon,alpha Interferon
D050835 Interferon Regulatory Factors A family of transcription factors that share an N-terminal HELIX-TURN-HELIX MOTIF and bind INTERFERON-inducible promoters to control GENE expression. IRF proteins bind specific DNA sequences such as interferon-stimulated response elements, interferon regulatory elements, and the interferon consensus sequence. Interferon Regulatory Factor,IRF Transcription Factors,Factor, Interferon Regulatory,Regulatory Factor, Interferon,Transcription Factors, IRF
D060888 Real-Time Polymerase Chain Reaction Methods used for detecting the amplified DNA products from the polymerase chain reaction as they accumulate instead of at the end of the reaction. Kinetic Polymerase Chain Reaction,Quantitative Real-Time PCR,Quantitative Real-Time Polymerase Chain Reaction,Real-Time PCR,PCR, Quantitative Real-Time,PCR, Real-Time,PCRs, Quantitative Real-Time,PCRs, Real-Time,Quantitative Real Time PCR,Quantitative Real Time Polymerase Chain Reaction,Quantitative Real-Time PCRs,Real Time PCR,Real Time Polymerase Chain Reaction,Real-Time PCR, Quantitative,Real-Time PCRs,Real-Time PCRs, Quantitative

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