IL1 and TNF alpha induce cGMP formation in C6 astrocytoma cells via the nitridergic pathway.

Brain Res

Institut de Pharmacologie Moléculaire et Cellulaire, CNRS UPR 411, Université de Nice, Sophia Antipolis, Valbonne, France.

Published: March 1993

Inflammatory cytokines (interleukin 1 alpha, 1 beta and tumor necrosis factor-alpha) induce the formation of nitrite by C6 astrocytoma cells in a manner that was blocked by inhibitors of NO synthase such as NG-monomethylarginine. They increase the formation of cGMP. This action was potentiated by isobutylmethylxanthine and was inhibited by NG-monomethylarginine. Interleukin-6 and interferon-gamma were inactive. It is concluded that the nitridergic signalling pathway is active in C6 cells and is a major target for inflammatory cytokines.

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http://dx.doi.org/10.1016/0006-8993(93)91003-bDOI Listing

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