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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Effects of antigen and recombinant porcine cytokines on pig dendritic cell cytokine expression in vitro.

To evaluate variables influencing in vitro immune response induction, pig monocyte-derived DCs (moDCs) were treated with putative type-1 and type-2 antigens (Ags, killed Mycobacterium tuberculosis (Mtb) and hen egg white lysozyme (HEWL)) and recombinant porcine cytokines (IL-6, IL-10, IL-12, IFN-gamma and TNF-alpha). Responses were measured as moDC cytokine mRNA expression. Treatment of moDCs with HEWL increased IL-13 but not IL-12, IFN-gamma or IL-10 mRNA, suggesting a DC2 phenotype. Addition of TNF-alpha, IFN-gamma or IL-12 to HEWL-treated moDCs increased IL-12p35 and reduced IL-13 mRNA; suggesting a DC1 phenotype. Mtb increased moDC IL-12p35, IFN-gamma and to a lesser extent IL-13 mRNA. This DC1 bias was enhanced by TNF-alpha, IFN-gamma or IL-12, which increased IL-12p35 and to a lesser extent IL-10 mRNA but reduced IL-13 mRNA. Addition of IL-10 to Mtb-pulsed moDCs reduced IL-12p35, IFN-gamma and IL-13, but increased IL-10 mRNA, suggesting diversion from DC1 to DC2. Thus porcine moDCs treated with Ag and/or cytokines alter moDC cytokine expression confirming their likely ability to initiate and steer acquired immune response.[1]

References

  1. Effects of antigen and recombinant porcine cytokines on pig dendritic cell cytokine expression in vitro. Raymond, C.R., Sidahmed, A.M., Wilkie, B.N. Vet. Immunol. Immunopathol. (2006) [Pubmed]
 
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