Synergistic inhibition of pseudorabies virus replication by porcine alpha/beta interferon and gamma interferon in vitro. 2007

Qingxia Yao, and Ping Qian, and Yi Cao, and Yannan He, and Youhui Si, and Zhuofei Xu, and Huanchun Chen
Laboratory of Animal Virology, College of Veterinary Medicine, Unit of Animal Infectious Diseases, National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, People's Republic of China.

Interferon (IFN) is crucial for initiating the innate immune response and for the generation of the adaptive response. IFN, in most species, comprises IFN-alpha (IFN-alpha), IFN-beta (IFN-beta) and IFN-gamma (IFN-gamma). In this study, we compared the capacity of porcine IFN-alpha, -beta and -gamma, or a combination of them, to protect IBRS-2 cells (porcine kidney cells) from infection with pseudorabies virus (PRV). The results demonstrated that porcine IFN-beta (PoIFN-beta) was the most efficient of the three IFNs in conferring resistance PRV infection; 100 U/mL PoIFN-beta inhibited PRV plaque formation 5.3-fold. Compared with PoIFN-beta, porcine IFN-gamma (PoIFN-gamma) was less capable of inhibiting PRV plaque formation (3.3-fold inhibition). Porcine IFN-alpha (PoIFN-alpha) had the least capability of the three PoIFNs, and inhibited PRV plaque formation only 1.26-fold. The inhibitory capacity increased to only 2.3-fold with a treatment of 12,800 U/mL PoIFN-alpha. A combination of PoIFN-gamma and PoIFN-alpha or PoIFN-beta inhibited PRV plaque formation 12.8-fold or 100-fold, respectively. Treatment of IBRS-2 cells with PoIFN-alpha/beta and PoIFN-gamma inhibited PRV replication 29- or 146-fold. Additionally, real-time PCR analyses of the PRV immediate early (IE) gene revealed that IE mRNA expression was profoundly decreased in cells stimulated with PoIFN-alpha/beta and PoIFN-gamma (23.8-133.0-fold) compared with vehicle-treated cells. All the findings indicate that PoIFN-gamma acts synergistically with other PoIFNs (PoIFN-alpha and -beta) to potently inhibit PRV replication in vitro.

UI MeSH Term Description Entries
D007371 Interferon-gamma The major interferon produced by mitogenically or antigenically stimulated LYMPHOCYTES. It is structurally different from TYPE I INTERFERON and its major activity is immunoregulation. It has been implicated in the expression of CLASS II HISTOCOMPATIBILITY ANTIGENS in cells that do not normally produce them, leading to AUTOIMMUNE DISEASES. Interferon Type II,Interferon, Immune,gamma-Interferon,Interferon, gamma,Type II Interferon,Immune Interferon,Interferon, Type II
D011557 Pseudorabies A highly contagious herpesvirus infection affecting the central nervous system of swine, cattle, dogs, cats, rats, and other animals. Aujeszky's Disease,Aujeszky Disease,Aujeszkys Disease
D011558 Herpesvirus 1, Suid A species of VARICELLOVIRUS producing a respiratory infection (PSEUDORABIES) in swine, its natural host. It also produces an usually fatal ENCEPHALOMYELITIS in cattle, sheep, dogs, cats, foxes, and mink. Aujeszky's Disease Virus,Swine Herpesvirus 1,Aujeszky Disease Virus,Herpesvirus 1 (alpha), Suid,Herpesvirus Suis,Pseudorabies Virus,Suid Herpesvirus 1,Aujeszkys Disease Virus,Herpesvirus 1, Swine,Pseudorabies Viruses,Virus, Pseudorabies,Viruses, Pseudorabies
D002417 Cattle Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor. Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D000327 Adsorption The adhesion of gases, liquids, or dissolved solids onto a surface. It includes adsorptive phenomena of bacteria and viruses onto surfaces as well. ABSORPTION into the substance may follow but not necessarily. Adsorptions
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
D000998 Antiviral Agents Agents used in the prophylaxis or therapy of VIRUS DISEASES. Some of the ways they may act include preventing viral replication by inhibiting viral DNA polymerase; binding to specific cell-surface receptors and inhibiting viral penetration or uncoating; inhibiting viral protein synthesis; or blocking late stages of virus assembly. Antiviral,Antiviral Agent,Antiviral Drug,Antivirals,Antiviral Drugs,Agent, Antiviral,Agents, Antiviral,Drug, Antiviral,Drugs, Antiviral
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated
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

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