Brazilin Inhibits of TPA-induced MMP-9 Expression Via the Suppression of NF-${\kappa}B$ Activation in MCF-7 Human Breast Carcinoma Cells

  • Kim, Byeong-Soo (Department of Companion and Laboratory Animal Science, Kongju National University)
  • Received : 2010.06.24
  • Accepted : 2010.07.11
  • Published : 2010.09.30


Metastasis is the primary cause of from breast cancer mortality. Cell migration and invasion play important roles in neoplastic metastasis. Matrix metalloproteinase-9 (MMP-9), which degrades the extracellular matrix (ECM), plays an important role in cancer cell invasion. NF-${\kappa}B$ is transcription factor important in the regulation of MMP-9, as the promoter of MMP-9 gene contains binding sites for NF-${\kappa}B$. Brazilin, an active component of sappan wood (Caesalpinia sappan), decreases TPA-induced MMP-9 expression and invasion in MCF-7 cells. Also, brazilin suppressed NF-${\kappa}B$ activation in TPA-treated MCF-7 cells. Taken together, we demonstrated that the inhibition of TPA-induced MMP-9 expression and cell invasion by brazilin is mediated by the suppression of the NF-${\kappa}B$ pathway in MCF-7 cells. This result suggest brazilin provide a potential therapeutic app roach for the treatment of breast cancer.


Supported by : National Research Foundation of Korea (NRF)


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