苦参素对胃癌细胞株MKN-54产生金属基质蛋白酶的抑制作用
Inhibitory effects of matrine on the production of matrix metallo - proteinases of human gastric carcinoma cell line MKN - 45
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摘要: 目的 :研究中药有效成分苦参素对胃癌细胞株MKN-45产生金属基质蛋白酶MMPs(matrix metallo- proteinases)的作用。 方法 :采用酶联免疫吸附试验检测MKN-45细胞产生金属机制蛋白酶MMP-2和 MMP-9。采用明胶酶谱法检测金属蛋白酶活性。 结果 :在5-20μmol／L的浓度范围内,苦参素能有效抑制 MKN-45细胞中MMP-2和MMP-9的表达,同时明胶酶谱结果显示,20μmoL／L的苦参素能够显著抑制 MMP-2和MMP-9的蛋白酶活性。 结论 :苦参素能够显著抑制胃癌细胞株MKN-45中金属基质蛋白酶的表达和活性,表明苦参素对胃癌转移具有一定的抑制作用。Abstract: Objective : To explore the mechanism of therapeutic effect of matrine on human gastric carcinoma by inhibiting the production of matrix metallo-proleinases of cell line MKN - 45 induced by it. Methods : The production of matrix metalloproteinases (MMP -2,MMP -9)of MKN -45 cells were measured by ELISA and gelatin zymogrmn. Results : In the dose of 5 -20μmol/L, matrine can significantly inhibit MMP-2 as well as MMP-9 expressions in MKN -45 cells. Especially, in the zymographic analysis of MMPs pxressions in conditional culture media, matrine 20μmol/L can greatly inhibit the MMP -2 and MMP -9 enzyme activity. Conclusion : Matrine could significantly inhibit the production and activity of MMPs in gastric carcinoma cell line MKN -45, which showed the inhibitory effect on the metastasis of gastric carcinoma cells.
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Key words:
- matrine /
- matrix melalloproteinases /
- gastric carcinoma /
- invasive
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