Abstract
To discuss the effect of Kansui Radix prepared by different processes on cell cycle and apoptosis of normal human liver cell lines LO2. With normal human liver cell lines LO2 as the study object, the MTT method was adopted to study the effect of Kansui Radix prepared by different processes, including Kansui Radix, stir-baking Kansui Radix, Kansui Radix moistening with vinegar and Kansui prepared by different processes, on LO2 cell activity. The cellular morphological changes were observed by inverted microscope. The effect of Kansui Radix stir-baked with vinegar on LO2 cell cycle and apoptosis was observed by flow cytometry. Compared with the negative control group, Kansui could obviously inhibit the activity of human normal liver cell lines LO2 (P <0.01) , and significantly increase the percentage of LO2 cells in S phase (P <0.05) , notably decrease the percentage of LO2 cells in G2/M phase (P <0.01) , significantly increase the early apoptosis rate, late apoptosis rate and necrosis rate and total apoptosis rate of human normal liver cell lines LO2 (P <0.01). Compared with the Kansui group, all of the other processed Kansui samples could significantly decrease the cell proliferation inhibition (P <0.01) , and the trend of morphological degradation. Besides, they could significantly increase the percentage of LO2 cells in G2/M phase (P <0.05, P <0.05, P <0. 01) , significantly decrease the early apoptosis rate, late apoptosis rate and necrosis rate, and total apoptosis rate of human normal liver cell lines LO2 (P < 0.01). The order of the increase in the percentage of cells in G2/M phase and the decrease in apoptosis rate was Kansui Radix stirbaked with vinegar > Kansui Radix moistening with vinegar > stir-baking Kansui Radix. The toxicity of processed Kansui could be reduced by affecting LO2 cell cycle and apoptosis. The processes of stir-baking and moistening with vinegar can play a synergistic effect in the detoxication of human normal liver cell lines LO2, which provides a basis for unveiling the rationality of stirbaking with vinegar of Kansui in the detoxication, as well as the optimizing the process.
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