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. 1995 Aug 1;14(15):3731-40.
doi: 10.1002/j.1460-2075.1995.tb00043.x.

IL-2 gene expression and NF-kappa B activation through CD28 requires reactive oxygen production by 5-lipoxygenase

M Los  1 , H Schenk, K Hexel, P A Baeuerle, W Dröge, K Schulze-Osthoff
Affiliations

"VSports注册入口" IL-2 gene expression and NF-kappa B activation through CD28 requires reactive oxygen production by 5-lipoxygenase

M Los et al. EMBO J. .

Abstract

Activation of the CD28 surface receptor provides a major costimulatory signal for T cell activation resulting in enhanced production of interleukin-2 (IL-2) and cell proliferation. In primary T lymphocytes we show that CD28 ligation leads to the rapid intracellular formation of reactive oxygen intermediates (ROIs) which are required for CD28-mediated activation of the NF-kappa B/CD28-responsive complex and IL-2 expression. Delineation of the CD28 signaling cascade was found to involve protein tyrosine kinase activity, followed by the activation of phospholipase A2 and 5-lipoxygenase. Our data suggest that lipoxygenase metabolites activate ROI formation which then induce IL-2 expression via NF-kappa B activation VSports手机版. These findings should be useful for therapeutic strategies and the development of immunosuppressants targeting the CD28 costimulatory pathway. .

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V体育平台登录 - References

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