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投稿时间:2018-11-17
投稿时间:2018-11-17
中文摘要: 对数种中药提取物进行筛选后发现,白扁豆提取物对人胃黏膜上皮(human gastric epithelial cell line,GES-1)细胞增殖具有良好的促进作用,在500.00 μg/mL 浓度作用下GES-1 细胞存活率可提高到125.80%。同时,白扁豆提取物可明显抑制幽门螺杆菌(Helicobacter pylori,Hp)生长。以15.62 μg/mL 白扁豆提取物作用24 h 后,对Hp 抑制率达62.61%。白扁豆提取物对脲酶活性也有明显的抑制作用,其IC50值为397.14 μg/mL。以Hp 侵染GES-1 细胞24 h建立GES-1 细胞损伤模型,经500 μg/mL 白扁豆提取物作用12 h 后,GES-1 细胞存活率可达到95%以上。因此,白扁豆可能通过促进GES-1 细胞增殖的同时抑制Hp 及脲酶活性,从而对Hp 损伤GES-1 细胞起到修复的作用。
中文关键词: 幽门螺杆菌 白扁豆提取物 脲酶 胃黏膜上皮细胞(GES-1) 细胞损伤模型
Abstract:Effects of several traditional Chinese herbs extracts on human gastric epithelial cells (GES-1)were analyzed.The Dolichos bean seed (DBS)extract demonstrated promotive effects on the proliferation of GES-1 cells.The survival rate of GES-1 cells reached 125.80%at a concentration of 500.00 μg/mL.In the meantime,DBS extract could significantly inhibit Helicobacter pylori (Hp)growth.The inhibition rate of Hp reached 62.61 % after treatment with 15.62 μg/mL DBS extract for 24 h.Moreover,DBS extract showed significant inhibitory effect on urease activity,with IC50value of 397.14 μg/mL.The GES-1 cell injury model was established by infecting GES-1 cells with Hp for 24 h.The survival rate of GES-1 cells was over 95 % after treatment with 500 μg/mL DBS extract for 12 h.Therefore,DBS extract might repair Hp-injured GES-1 cells by promoting the proliferation of GES-1 cells and inhibiting Hp and urease activity.
keywords: Helicobacter pylori (Hp) Dolichos bean seed extracts urease human gastric epithelial cells(GES-1) cell injury model
文章编号:201913001 中图分类号: 文献标志码:
基金项目:国家自然科学基金项目(31671804);广东省科技计划项目(2017B090901063);广州市产学研协同创新重大专项(201604020047);中央高校基本科研业务费项目(2017ZD079);高等学校学科创新引智计划资助(B17018)
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