Title : Curcumin inhibits phorbol ester-induced up-regulation of cyclooxygenase-2 and matrix metalloproteinase-9 by blocking ERK1/2 phosphorylation and NF-kappaB transcriptional activity in MCF10A human breast epithelial cells.

Pub. Date : 2005 Nov-Dec

PMID : 16356124






6 Functional Relationships(s)
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1 In the present study, we investigated the possible inhibitory effects of curcumin on the expression of COX-2 and MMP-9 induced by the tumor promoter 12-O-tetradecanoylphorbol 13-acetate (TPA) in MCF10A human breast epithelial (MCF10A) cells and the underlying mechanisms. Tetradecanoylphorbol Acetate prostaglandin-endoperoxide synthase 2 Homo sapiens
2 In the present study, we investigated the possible inhibitory effects of curcumin on the expression of COX-2 and MMP-9 induced by the tumor promoter 12-O-tetradecanoylphorbol 13-acetate (TPA) in MCF10A human breast epithelial (MCF10A) cells and the underlying mechanisms. Tetradecanoylphorbol Acetate prostaglandin-endoperoxide synthase 2 Homo sapiens
3 Curcumin inhibited the TPA-induced COX-2 expression at both transcriptional and post-transcriptional levels, and reduced the synthesis of prostaglandin E(2), one of the major products of COX-2. Tetradecanoylphorbol Acetate prostaglandin-endoperoxide synthase 2 Homo sapiens
4 Curcumin inhibited the TPA-induced COX-2 expression at both transcriptional and post-transcriptional levels, and reduced the synthesis of prostaglandin E(2), one of the major products of COX-2. Tetradecanoylphorbol Acetate prostaglandin-endoperoxide synthase 2 Homo sapiens
5 Treatment of MCF10A cells with U0126, which is a pharmacological inhibitor of ERK1/2, reduced TPA-induced up-regulation of COX-2 and MMP-9. Tetradecanoylphorbol Acetate prostaglandin-endoperoxide synthase 2 Homo sapiens
6 Taken together, these findings suggest that curcumin inhibits the TPA-induced up-regulation of COX-2 and MMP-9 by suppressing ERK1/2 phosphorylation and NF-kappaB trans-activation in human breast epithelial cells, which may contribute to its chemopreventive potential. Tetradecanoylphorbol Acetate prostaglandin-endoperoxide synthase 2 Homo sapiens