期刊
BMB REPORTS
卷 46, 期 4, 页码 201-206出版社
KOREAN SOCIETY BIOCHEMISTRY & MOLECULAR BIOLOGY
DOI: 10.5483/BMBRep.2013.46.4.160
关键词
Invasion; MCF-7; MMP-9; NF-kappa B; Sulforaphane
资金
- fund of Chonbuk National University
- National Research Foundation of Korea (NRF)
- Korea Government (MEST) [2011-0004671]
- Ministry of Science & Technology (MoST)/Korea Science & Engineering Foundation (KOSEF), Republic of Korea. [M10528010003-05N2801-00310]
Sulforaphane [1-isothiocyanato-4-(methylsulfinyl)-butane] is an isothiocyanate found in some cruciferous vegetables, especially broccoli. Sulforaphane has been shown to display anti-cancer properties against various cancer cell lines. Matrix metalloproteinase-9 (MMP-9), which degrades the extracellular matrix (ECM), plays an important role in cancer cell invasion. In this study, we investigated the effect of sulforaphane on 12-O-tetradecanoyl phorbol-13-acetate (TPA)-induced MMP-9 expression and cell invasion in MCF-7 cells. TPA-induced MMP-9 expression and cell invasion were decreased by sulforaphane treatment. TPA substantially increased NF-kappa B and AP-1 DNA binding activity. Pre-treatment with sulforaphane inhibited TPA-stimulated NF-kappa B binding activity, but not AP-1 binding activity. In addition, we found that sulforaphane suppressed NF-kappa B activation, by inhibiting phosphorylation of I.B in TPA-treated MCF-7 cells. In this study, we demonstrated that the inhibition of TPA-induced MMP-9 expression and cell invasion by sulforaphane was mediated by the suppression of the NF-kappa B pathway in MCF-7 cells.
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