参芪抑瘤方药物血清对胃癌MGC-803细胞增殖的影响

摘要

Objective To investigate the inhibitory effects of medicinal serum of Shenqi Yiliu Formula on cell proliferation of gastric cancer MGC-803 cells;To discuss relevant mechanism. Methods After treated with different concentrations of medicinal serum of Shenqi Yiliu Formula, gastric cancer MGC-803 cells were tested by the following methods: MTT was employed to test the proliferation of gastric cancer MGC-803 cells; Flow cytometry was used to detect cell cycle; qRT-PCR was used to detect the genetic expressions of CDKN1B and CDKN1C;Western blot was employed to test the protein expressions of p27 and p57. Results When 3%, 5%and 10%medicinal serum of Shenqi Yiliu Formula was treated to MGC-803 cells for 24 h, 48 h and 72 h, proliferation of cells decreased significantly (P<0.01), with time- and dosage-dependent relationship. When 3%, 5% and 10% medicinal serum of Shenqi Yiliu Formula was treated to MGC-803 cells for 24 h, cells in G0/G1 increased, decreased in S. qRT-PCR results showed that compared with the blank control group and the negative control group, mRNA expressions of CDKN1B and CDKN1C of MGC-803 cells in medicinal serum all dose group increased significantly (P<0.01). Western blot results showed that compared with the blank control group, protein expressions of p27 and p57 of MGC-803 cells in medicinal serum all dose group increased significantly (P<0.01). Conclusion Medicinal serum of Shenqi Yiliu Formula can inhibit MGC-803 cells proliferation and the mechanism may be through adjusting CDKN1B, CDKN1C mRNA and proteins expression to intervene in the cell cycle.%目的：观察参芪抑瘤方药物血清对胃癌MGC-803细胞增殖的影响，探讨其相关机制。方法以参芪抑瘤方不同浓度药物血清干预胃癌 MGC-803细胞后，MTT 法检测细胞增殖，流式细胞仪检测细胞周期， qRT-PCR检测CDKN1B、CDKN1C基因表达，Western blot检测p27、p57蛋白表达。结果3%、5%、10%药物血清作用于MGC-803细胞24、48、72 h，细胞增殖水平显著降低（P＜0.01），且与时间和剂量呈依赖关系；3%、5%、10%药物血清作用于MGC-803细胞24 h后，G0/G1期细胞增多，S期细胞减少；qRT-PCR检测结果显示，与对照组和空白血清组比较，药物血清各剂量组MGC-803细胞CDKN1B、CDKN1C mRNA表达显著上调（P＜0.01）；Western blot检测结果显示，与对照组比较，药物血清各剂量组MGC-803细胞p27、p57蛋白表达显著上调（P＜0.01）。结论参芪抑瘤方药物血清可抑制胃癌MGC-803细胞的增殖，其机制可能是通过调节CDKN1B、CDKN1C mRNA和蛋白表达，进而干预细胞周期。