Title : Nicotine stimulates the expression of cyclooxygenase-2 mRNA via NFkappaB activation in human gingival fibroblasts.

Pub. Date : 2009 Mar

PMID : 19147120






6 Functional Relationships(s)
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1 Nicotine stimulates the expression of cyclooxygenase-2 mRNA via NFkappaB activation in human gingival fibroblasts. Nicotine prostaglandin-endoperoxide synthase 2 Homo sapiens
2 We investigated the involvement of the transcription nuclear factor kappa B (NFkappaB) in the nicotine-induced expression of cyclooxygenase-2 (COX-2), a key enzyme for prostaglandin synthesis, in human gingival fibroblasts. Nicotine prostaglandin-endoperoxide synthase 2 Homo sapiens
3 We investigated the involvement of the transcription nuclear factor kappa B (NFkappaB) in the nicotine-induced expression of cyclooxygenase-2 (COX-2), a key enzyme for prostaglandin synthesis, in human gingival fibroblasts. Nicotine prostaglandin-endoperoxide synthase 2 Homo sapiens
4 Nicotine-stimulated release of prostaglandin E(2) and expression of COX-2 mRNA in a time- and dose-dependent manner. Nicotine prostaglandin-endoperoxide synthase 2 Homo sapiens
5 The nicotine-stimulated release of prostaglandin E(2) and expression of COX-2 mRNA and protein were inhibited by an NFkappaB inhibitor, pyrrolidine dithiocarbamate (PDTC), by approximately 50%. Nicotine prostaglandin-endoperoxide synthase 2 Homo sapiens
6 These results suggest that nicotine is taken up by human gingival fibroblasts and that it then stimulates COX-2 expression via the activation of NFkappaB and the subsequent release of prostaglandin E(2). Nicotine prostaglandin-endoperoxide synthase 2 Homo sapiens