TY - JOUR T1 - Inflammatory Response of Peripheral Blood Mononuclear Cells Post Intramammary Challenge with Staphylococcus aureus in Dairy Cows AU - Xu, Shangzhong AU - Liu, Li AU - Yuan, Zhengrong AU - Chen, Cui AU - Zhang, Limin AU - Chen, Xiaojie AU - Liu, Xidong AU - Gao, Xue AU - Li, Junya AU - Gao, Huijiang AU - Zhang, Lupei JO - Journal of Animal and Veterinary Advances VL - 11 IS - 14 SP - 2588 EP - 2593 PY - 2012 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2012.2588.2593 UR - https://makhillpublications.co/view-article.php?doi=javaa.2012.2588.2593 KW - Dairy cow KW -mastitis KW -S. aureus KW -gene expression KW -PBMCs KW -China AB - To study the inflammatory response of Peripheral Blood Mononuclear Cells (PBMCs) to actue phases of Staphylococcus aureus (S. aureus) mastitis in dairy cows using gene expression data, the mRNA expression levels of six genes (Iinterleukin (IL)-8, Differentiation (CD) 14, Macrophage Colony Stimulating Factor Receptor (M-CSFR), Toll-Like Receptor 2 (TLR2), Chemokine Receptor 2 (CCR2) and CX3C Chemokine Receptor 1 (CX3CR1) in Peripheral Blood Mononuclear Cells (PBMCs) in infected cows (n = 3) with S. aureus relative to uninfected controls (n = 3) were measured at 0 day before inoculation and 1-3 days post inoculation (dpi) by the real-time quantitative PCR. Results indicated the expression of IL-8, CD14 and CCR2 gene were exhibited significantly (p<0.05) up-regulated within 2 dpi while there was no significant difference in the expression of M-CSFR, TLR2 and CX3CR1 genes at 1-3 dpi. Additionally, concentrations of plasma lipopolysaccharide Binding Protein (LBP) and Somatic Cell Counts (SCCs) were evaluated. Together these data reveal that the upregulation of gene expression is probably related to the recruitment and activation of PBMCs. ER -