PLoS ONE (Jan 2014)

Wogonin suppresses melanoma cell B16-F10 invasion and migration by inhibiting Ras-medicated pathways.

  • Kai Zhao,
  • Libin Wei,
  • Hui Hui,
  • Qinsheng Dai,
  • Qi-Dong You,
  • Qing-Long Guo,
  • Na Lu

DOI
https://doi.org/10.1371/journal.pone.0106458
Journal volume & issue
Vol. 9, no. 9
p. e106458

Abstract

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The patients diagnosed with melanoma have a bad prognosis for early regional invasion and distant metastases. Wogonin (5,7-dihydroxy-8-methoxyflavone) is one of the active components of flavonoids that extracts from Scutellariae radix. Several previous studies reported that wogonin possesses antitumor effect against leukemia, gastrointestinal cancer and breast cancer. In this study, we used melanoma cell B16-F10 to further investigate the anti-invasive and anti-migratory activity of wogonin. Our date showed that wogonin caused suppression of cell migration, adhesion, invasion and actin remodeling by inhibiting the expression of matrix metalloproteinase-2 and Rac1 in vitro. Wogonin also reduced the number of the tumor nodules on the whole surface of the lung in vivo. Furthermore, the examination of mechanism revealed that wogonin inhibited Extracellular Regulated protein Kinases and Protein Kinase B pathways, which are both medicated by Ras. Insulin-like growth factor-1-induced or tumor necrosis factor-α-induced invasion was also inhibited by wogonin. Therefore, the inhibitory mechanism of melanoma cell invasion by wogonin might be elucidated.