Gene expression analysis of host spleen responses to Marek's disease virus infection in susceptible and resistant chickens
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ABSTRACT: To investigate gene expression profiles in susceptible spleens (SS) and resistant spleens (RS) from MDV-infected chickens and non-infected spleens (NS) from controls. Twelve spleens were chosen from three groups (four samples per group) to be used in chicken genome microarray to examine differential gene expression. In total, there were 4317 and 2593 differentially expressed (DE) genes in SS vs. NS and in SS vs. RS, respectively. However, no DE genes were found in RS vs. NS. The expression of twenty-four genes was verified by qPCR. In this study, we found weak, but detectable host immune response still existed in the late neoplastic transformation phase of MDV infection. Toll-like receptor pathway was affected in susceptible spleens compared to non-infected and resistant spleens. IL10 seemed to be exploited by virus to facilitate tumorigenesis. The expression of many members in insulin growth factor system was altered. IGFBP4 and IGFBP7 might be associated with MD lymphoma transformation. The expression profiles in resistant spleens were similar to those in non-infected spleens, which indicated most genes returned to baseline expression levels. Although latent MDV infection persists in resistant chicken for the whole life, it won’t interfere with normal function of genes.
ORGANISM(S): Gallus gallus
PROVIDER: GSE29805 | GEO | 2012/06/01
SECONDARY ACCESSION(S): PRJNA140915
REPOSITORIES: GEO
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