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The role of NF-kB and C/EBP factors during pathogen-mediated activation of bovine interleukin 8 and beta-defensin in mammary epithelial cells ( Dissertationsschrift )

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Molecular mechanisms of pathogen-induced activation of the IL-8 and LAP genes were investigated in Mammary Epithelial Cells. Activity of the resting IL-8 promoter is inhibited by NF-kappaB p65, but activated quickly after pathogen contact by C/EBP factors. Conversely, NF-kappaB p65 drives LAP expression some time after pathogen induction, while C/EBP factors attenuate activity of this promoter. Hence, in the very same cell type NF-kappaB p65 and C/EBP factors antagonistically regulate both immune relevant genes before and after pathogen mediated stimulation.

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