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Canine distemper virus increased the differentiation of CD4 + CD8 + T cells and mRNA expression of inflammatory cytokines in peripheral blood lymphocyte from canine.
Microbial Pathogenesis 2019 June
BACKGROUND: Canine distemper virus (CDV) can cause a highly contagious disease to canid. However, how CDV affects peripheral blood lymphocyte (PBL) remains unclear.
METHODS: In this study, CDV infected PBL was cultured to investigate the effect of CDV on the differentiation of lymphocytes and the mRNA expression of inflammatory cytokines in PBL.
RESULTS: The results showed that CDV changed the phenotype of lymphocytes and increased the percentage of CD4+ CD8+ T cells. To explore the effect of immune response of lymphocytes to CDV, the mRNA expression of pro- and anti-inflammatory cytokines was examined. Interleukin (IL-6, IL-12B), and tumor necrosis factor (TNF)-α mRNA expression was significantly increased at 12-48 h after CDV infection. IL-10 mRNA expression was dramatically enhanced at 12-36 h after CDV infection. However, IL-4 and transforming growth factor (TGF-β) were not response to CDV infection. These results indicated that PBL differentiated intoCD4+ CD8+ T cells and improved the inflammatory response to CDV infection.
CONCLUSIONS: After CDV infection, PBL differentiated into CD4+ CD8+ T cells and initiated inflammatory response.
METHODS: In this study, CDV infected PBL was cultured to investigate the effect of CDV on the differentiation of lymphocytes and the mRNA expression of inflammatory cytokines in PBL.
RESULTS: The results showed that CDV changed the phenotype of lymphocytes and increased the percentage of CD4+ CD8+ T cells. To explore the effect of immune response of lymphocytes to CDV, the mRNA expression of pro- and anti-inflammatory cytokines was examined. Interleukin (IL-6, IL-12B), and tumor necrosis factor (TNF)-α mRNA expression was significantly increased at 12-48 h after CDV infection. IL-10 mRNA expression was dramatically enhanced at 12-36 h after CDV infection. However, IL-4 and transforming growth factor (TGF-β) were not response to CDV infection. These results indicated that PBL differentiated intoCD4+ CD8+ T cells and improved the inflammatory response to CDV infection.
CONCLUSIONS: After CDV infection, PBL differentiated into CD4+ CD8+ T cells and initiated inflammatory response.
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