Title : Green tea catechins reduce invasive potential of human melanoma cells by targeting COX-2, PGE2 receptors and epithelial-to-mesenchymal transition.

Pub. Date : 2011

PMID : 22022384






4 Functional Relationships(s)
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1 Treatment of A375 and Hs294t cells with EGCG resulted in a dose-dependent inhibition of cell migration or invasion of these cells, which was associated with a reduction in the levels of cyclooxygenase (COX)-2, prostaglandin (PG) E(2) and PGE(2) receptors (EP2 and EP4). epigallocatechin gallate mitochondrially encoded cytochrome c oxidase II Homo sapiens
2 EGCG inhibits 12-O-tetradecanoylphorbol-13-acetate-, an inducer of COX-2, and PGE(2)-induced cell migration of cells. epigallocatechin gallate mitochondrially encoded cytochrome c oxidase II Homo sapiens
3 Moreover, EGCG inhibited the activation of NF-kappaB/p65, an upstream regulator of COX-2, in A375 melanoma cells, and treatment of cells with caffeic acid phenethyl ester, an inhibitor of NF-kappaB, also inhibited cell migration. epigallocatechin gallate mitochondrially encoded cytochrome c oxidase II Homo sapiens
4 Together, these results indicate that EGCG, a major green tea catechin, has the ability to inhibit melanoma cell invasion/migration, an essential step of metastasis, by targeting the endogenous expression of COX-2, PGE(2) receptors and epithelial-to-mesenchymal transition. epigallocatechin gallate mitochondrially encoded cytochrome c oxidase II Homo sapiens