Expression profiles of genes within a subregion of chicken major histocompatibility complex B in spleen after Marek's disease virus infection
文献类型: 外文期刊
作者: Lian, L.;Qu, L. J.;Zheng, J. X.;Chen, Y. M.;Xu, G. Y.;Yang, N.;Liu, C. J.;Zhang, Y. P.
作者机构:
关键词: chicken spleen;gene expression;Marek's disease;major histocompatibility complex
期刊名称: POULTRY SCIENCE
ISSN: 0032-5791
年卷期: 2010 年 89 卷 10 期
页码:
收录情况: SCI
摘要: Major histocompatibility complex has previously been shown to influence the resistance of chicken to Marek's disease virus (MDV). However, little is known about expression of other genes in the MHC-I and II pathway after MDV infection. This study aimed at investigating 8 immune-related genes in the MHC core region that affects host responses to MDV. Spleens of infected and age-matched uninfected chickens were removed at 4, 7, 14, 21, and 28 d postinfection for gene expression detection using real-time PCR. Different expression patterns of MHC-I and II pathway genes were observed in the spleen. In the MHC-I pathway, the expression of transporter of antigen protein 1 (TAP1), transporter of antigen protein 2 (TAP2), and transporter of antigen protein-binding protein (TAPBP) genes was significantly increased in the spleen of MDV-infected than that of uninfected chickens. It indicated that host antivirus responses were generated to enhance antigen presentation. However, MHC-II pathway genes showed contrary trends. Classical MHC-II beta chain major gene (BLB2) and nonclassical class II genes [DM alpha chain gene (DMA), DM beta chain gene-1 (DMB1), and DM beta chain gene-2 (DMB2)] had consistent lower transcripts in spleens of MDV-infected than that of uninfected chickens, which reflected that MDV interfered with multiple components of the MHC-II pathway. Overall, expression of most genes in the MHC core region was altered; moreover, the genes in endogenous and exogenous antigen presentation pathways had different expression patterns in the spleen after MDV infection.
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