Title : Functional role of beta-adrenergic receptors in the mitogenic action of nicotine on gastric cancer cells.

Pub. Date : 2007 Mar

PMID : 17003101






4 Functional Relationships(s)
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1 In this connection, the ERK1/2 inhibitor U0126 abrogated the upregulation of AP-1 and COX-2 as well as cell proliferation induced by nicotine. Nicotine mitogen-activated protein kinase 3 Homo sapiens
2 Inhibition of PKC by staurosporine attenuated nicotine-induced ERK1/2 phosphorylation and COX-2 expression. Nicotine mitogen-activated protein kinase 3 Homo sapiens
3 Furthermore, atenolol and ICI 118,551, a beta1- and beta2-adrenoceptor antagonist, respectively, reversed the stimulatory action of nicotine on the expression of PKC, ERK1/2 phosphorylation, and COX-2 together with cell proliferation. Nicotine mitogen-activated protein kinase 3 Homo sapiens
4 Collectively, these results suggest that nicotine stimulates gastric cancer cell growth through the activation of beta-adrenoceptors and the downstream PKC-betaI/ERK1/2/COX-2 pathway. Nicotine mitogen-activated protein kinase 3 Homo sapiens