Abstract
Saururus chinensis is a perennial plants, its flavonoid compound is known to exhibit anti-oxidative activity. This study was aimed to investigate the effect of Water Extract and Solvent Fractions of Saururus chinensis on antioxidant, anti-inflammatory and anti-invasive of Phorbol 12-myristate 13-acetate (PMA)-induced matrix metalloproteinase (MMP-2) and MMP-9 activities. Plant samples were fractionated into hexane, CHCl₃, ethyl acetate, butanol, and water fractions, and each of these was assayed individually. The water fraction showed the highest extraction yield at 9.25%(w/w). Anti-oxidative activity was analyzed by DPPH assay. Cell viability was detected by the MTS assay. Anti-inflammatory activity was assayed by the nitric oxide (NO) production in mouse macrophage Raw 264.7 cells. The activity and mRNA expression of MMP-2 and MMP-9 in human oral squamous carcinoma YD-10B cells were examined by zymography and RT-PCR. As results, MMP-2/-9 activation was increased in PMA induced YD-10B cells. In PMA-treated YD-10B cells, the increased mRNA expression and protein activation of MMP-2/-9 were significantly inhibited in the ethyl acetate fraction. The ethyl acetate fraction showed the highest anti-oxidative activity at 73.38%. The ethyl acetate fraction at non-cytotoxic concentrations significantly exhibited the anti-inflammatory activity of Raw 264.7 cells in dose-dependent manner. In conclusion, these findings demonstrate that the ethyl acetate fraction obtained from a chinensis water extract potentiates a promising therapeutic anti-invasive agent and, therefore, as an anti-cancer drug for cancer prevention and therapy in oral cancer.
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