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Researchers led by Penn vet uncover the delicate protein balance behind the immune system response
Date:12/10/2007

ytokines IL-27 and IL-6 inducing production Th1 , Th2 and Th17 T cells and concludes that cytokines like IL-27 can promote the ability of these cells to produce IL-10. The effect was dependent on the transcription factors STAT1 and STAT3 for IL-27 and on STAT3 for IL-6.

Researchers tested this hypothesis by removing the IL-27 receptor from genetically engineered mice. Once infected with disease, the mice were unable to generate T cells producing IL-10.

In prior studies, Penn researchers learned that Interluekin-27 was involved in the immune-system response by limiting the duration and intensity of white blood activation, an "off switch" to the cascade of messenger proteins that serve to further activate the immune system. Prior to their research, the general assumption among scientists was that IL-27 promoted inflammation.


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Contact: Jordan Reese
jreese@upenn.edu
215-573-6604
University of Pennsylvania
Source:Eurekalert

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