Title : Histamine H1 receptor antagonist blocks histamine-induced proinflammatory cytokine production through inhibition of Ca2+-dependent protein kinase C, Raf/MEK/ERK and IKK/I kappa B/NF-kappa B signal cascades.

Pub. Date : 2005 Feb 1

PMID : 15652235






5 Functional Relationships(s)
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1 Histamine H1 receptor antagonist blocks histamine-induced proinflammatory cytokine production through inhibition of Ca2+-dependent protein kinase C, Raf/MEK/ERK and IKK/I kappa B/NF-kappa B signal cascades. Histamine mitogen-activated protein kinase 1 Homo sapiens
2 Histamine activated the phosphorylation of protein kinase C (PKC), c-Raf, mitogen-activated protein/extracellular signal-regulated kinase kinase (MEK), extracellular signal-regulated kinase (ERK), I kappa B kinase (IKK), inhibitory kappa B (I kappa B)-alpha and nuclear factor-KB (NF-kappa B) p65, which was inhibited by Ro-31-8220, a PKC inhibitor. Histamine mitogen-activated protein kinase 1 Homo sapiens
3 Histamine activated the phosphorylation of protein kinase C (PKC), c-Raf, mitogen-activated protein/extracellular signal-regulated kinase kinase (MEK), extracellular signal-regulated kinase (ERK), I kappa B kinase (IKK), inhibitory kappa B (I kappa B)-alpha and nuclear factor-KB (NF-kappa B) p65, which was inhibited by Ro-31-8220, a PKC inhibitor. Histamine mitogen-activated protein kinase 1 Homo sapiens
4 Furthermore, in addition to the above cytokines, histamine stimulated the biosynthesis and/or release of numerous keratinocyte-derived mediators, which are probably regulated by the ERK or NF-kappa B cascades. Histamine mitogen-activated protein kinase 1 Homo sapiens
5 Our study suggests that histamine activates Ca(2+)-dependent PKC isoforms that play crucial roles in the activation of Raf/MEK/ERK and IKK/I kappa B/NF-kappa B cascades, leading to up-regulation of cytokine expression. Histamine mitogen-activated protein kinase 1 Homo sapiens