乳桿菌A-2代謝產(chǎn)物誘導(dǎo)人舌鱗癌CAL-27細(xì)胞凋亡的實(shí)驗(yàn)研究
[Abstract]:Aim: to investigate the inhibitory effect of Lactobacillus A-2 metabolite on proliferation and apoptosis of human tongue squamous cell carcinoma (CAL-27) cells. Methods: Lactobacillus A-2 was cultured on restoration whey medium and restored whey inulin medium respectively to prepare metabolite 1 (LSPM1) and metabolite 2 (LSPM2). Cell morphology was observed by acridine orange staining, and apoptosis was detected by flow cytometry and DNA agarose gel electrophoresis. Results: in the 3.0mg/mL~48mg/mL region of LSPM1 and LSPM2, with the increase of the concentration of metabolites, the inhibitory effect on CAL-27 cells was gradually enhanced. The half inhibitory concentrations (IC50) of LSPM1 and LSPM2 were 15.1mg/mL and 10.27 mg / mL, respectively. The apoptotic cells showed irregular nuclei, crumpled cells, crescent or horseshoe shape, and poor adhesion. The results of flow cytometry showed that the apoptotic rate of CAL-27 cells treated with LSPM1 and LSPM2 was higher than that of the control group. Agarose gel electrophoresis showed a typical DNA trapezoid. Conclusion: Lactobacillus A-2 metabolites can inhibit the growth of human tongue squamous cell carcinoma (CAL-27) cells and induce apoptosis of CAL-27 cells in vitro.
【學(xué)位授予單位】:佳木斯大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:R739.86
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