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Abstract Title:

Curcumin suppresses phorbol ester-induced matrix metalloproteinase-9 expression by inhibiting the PKC to MAPK signaling pathways in human astroglioma cells.

Abstract Source:

Biochem Biophys Res Commun. 2005 Oct 7;335(4):1017-25. PMID: 16102725

Abstract Author(s):

Moon-Sook Woo, Soo-Hyun Jung, So-Young Kim, Jin-Won Hyun, Kwang-Ho Ko, Won-Ki Kim, Hee-Sun Kim

Abstract:

The aberrant expression of matrix metalloproteinase-9 (MMP-9) is implicated in the invasion and angiogenesis process of brain tumor. This study has investigated the effects of curcumin on MMP-9 expression in human astroglioma cell lines. Curcumin significantly inhibited the MMP-9 enzymatic activity and protein expression that was induced by PMA. The inhibitory effect of curcumin on MMP-9 expression correlates with the decreased MMP-9 mRNA level and the suppression of MMP-9 promoter activity. The curcumin-mediated inhibition of MMP-9 gene expression appears to occur via NF-kappaB and AP-1 because their DNA binding activities were suppressed by curcumin. Furthermore, curcumin strongly repressed the PMA-induced phosphorylation of ERK, JNK, and p38 MAP kinase, which were dependent on the PKC pathway. Therefore, the inhibition of MMP-9 expression by curcumin might have therapeutic potential for controlling the growth and invasiveness of brain tumor.

Study Type : In Vitro Study

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Sayer Ji
Founder of GreenMedInfo.com

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