上海口腔医学 ›› 2019, Vol. 28 ›› Issue (6): 605-609.doi: 10.19439/j.sjos.2019.06.010

• 论著 • 上一篇    下一篇

乳酸菌E6-1对人口腔癌细胞Cal-27体外增殖的抑制作用及机制探讨

高磊1, 孙智辉2, 于浩1, 井建鑫1, 徐仲秋2, 李潇1, 张楠1   

  1. 1.齐齐哈尔市第一医院 口腔颌面外科,黑龙江 齐齐哈尔 161000;
    2.遵义医科大学第五附属(珠海)医院 口腔颌面外科,广东 珠海 519100
  • 收稿日期:2019-05-21 出版日期:2019-12-25 发布日期:2020-01-14
  • 通讯作者: 高磊,E-mail:116138690@qq.com
  • 作者简介:高磊(1982-),男,硕士研究生

Inhibiting effect and mechanism of Lactobacillus E6-1 on oral cancer cell line Cal-27

GAO Lei1, SUN Zhi-hui2, YU Hao1, JING Jian-xin1, XU Zhong-qiu2, LI Xiao1, ZHANG Nan1   

  1. 1.Department of Oral and Maxillofacial Surgery, The First Hospital of Qiqihar City. Qiqihar 161000, Heilongjiang Province;
    2.Department of Oral and Maxillofacial Surgery, The Fifth Affiliated Hospital of Zunyi Medical University. Zhuhai 519100, Guangdong Province, China
  • Received:2019-05-21 Online:2019-12-25 Published:2020-01-14

摘要: 目的 探讨乳杆菌E6-1在体外对人口腔癌细胞Cal-27增殖抑制及凋亡的影响。方法 选择不同浓度(0、10、20、40 mg/mL)的乳杆菌E6-1,作用于人口腔癌细胞Cal-27后,采用MTT实验检测E6-1对Cal-27肿瘤细胞增殖的抑制作用;利用DNA琼脂糖凝胶电泳法检测对凋亡细胞核DNA的影响;利用免疫印迹法检测各组细胞色素c、caspase-9及caspase-3蛋白表达水平。采用SPSS 21.0软件包对数据进行统计学分析。结果 MTT实验结果表明,E6-1对Cal-27有明显的抑制作用,且呈剂量依赖性;不同浓度的E6-1(10、20、40 mg/mL)及原液可诱导细胞核DNA形成 “梯状”条带(梯带);免疫印迹结果显示,与空白对照组相比,细胞色素c、caspase-9及caspase-3蛋白水平显著升高(P<0.05)。结论 在体外实验条件下,一定浓度的E6-1可抑制Cal-27细胞增殖,有效诱导细胞凋亡。

关键词: 口腔癌, 乳杆菌, 细胞凋亡

Abstract: PURPOSE: To study the effect of Lactobacillus E6-1 on proliferation and apoptosis of human oral cancer cell line Cal-27 in vitro. METHODS: MTT assay was carried out by different concentrations of Lactobacillus E6-1 on Cal-27 to detect the inhibitory effect on cell proliferation, and the effect on DNA was detected by agarose gel electrophoresis. The expression levels of cyt-c, caspase-9 and caspase-3 in each group was detected by Western blot. The data were analyzed with SPSS 21.0 software package. RESULTS: The results of MTT assay showed that E6-1 had obvious inhibitory effect on Cal-27 in a dose-dependent manner. DNA ladder in Cal-27 cells was induced by different concentrations of E6-1 (10, 20, 40 mg/mL). Compared with blank control group, Western blot results showed that the expression of cyt-c, caspase-9 and caspase-3 increased significantly(P<0.05). CONCLUSIONS: Lactobacillus E6-1 can inhibit the proliferation of Cal-27 and effectively induce apoptosis of tumor cells In vitro.

Key words: Oral cancer, Lactobacillus, Apoptosis

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