松口蘑菌丝体蛋白对HeLa细胞凋亡的影响

EFFECTS OF PROTEIN FROM TRICHOLOMA MATSUTAKE MYCELIUM ON APOPTOSIS OF HeLa CELLS

目的 : 研究松口蘑发酵菌丝体水提液中菌丝体蛋白质 (TMP- B)的体外抗癌作用。方法 : 体外培养 He La细胞 ,培养时添加不同浓度的 TMP- B,绘制细胞生长曲线。利用扫描电镜、流式细胞术及 DNA凝胶电泳等进行体外抗人子宫颈癌 He La细胞增殖和诱导细胞凋亡机制的研究。结果 : TMP- B在体外具有抑制肿瘤细胞增殖的作用。扫描电镜观察到 TMP- B处理细胞产生明显的凋亡小体 ;TMP- B对细胞周期的影响是通过抑制细胞从 S到 G2 /M期的转化来抑制He La细胞增殖 ,诱导细胞发生凋亡的 ;流式细胞仪分析图上出现凋亡峰 ;DNA电泳出现以 2 0 0 bp左右为单位的 DNA碎片。结论 : 采用液体培养方法生产的松口蘑菌丝体蛋白质 ,具有显著的抑制细胞增殖和诱导细胞凋亡作用。

Objective: To study the antitumor effect of the protein from Tricholoma matsutake against HeLa cells in vitro. Methods: Active protein was separated from the mycelium after sub-merged fermentation, and the antitumor effect against HeLa cells was studied in vitro by cell growth inhibition, scanning electron microscope, flow cytometry and DNA electrophoresis. Results: The mycelium protein-TMP-B had strong antitumor effect and induced apoptosis in vitro. TMP-B inhibited cell proliferation and induced cell apoptosis by arresting cell conversion from S to G 2/M state. HeLa cells exposed to TMP-B showed apoptotic peaks. Agarose gel electrophoresis of DNA from cells treated with TMP-B revealed 'DNA ladder'. Conclusion: The mycelium protein from Tricholoma matsutake can inhibit cervix cancer cells--HeLa cell proliferation and induce apoptosis.