五龙消癥丸抑制人胃癌BGC-823细胞侵袭与迁移作用及机制研究

Inhibition of Wulong Xiaozheng Pill on migration and invasion of gastric cancer BGC-823 cells and its mechanism

目的探究五龙消癥丸对胃癌BGC-823细胞侵袭与迁移能力的影响及其作用机制。方法分别用五龙消癥丸、PI3K激动剂胰岛素样生长因子1(IGF-1)及PI3K特异性抑制剂LY294002作用于BGC-823细胞,采用MTT法检测不同质量浓度五龙消癥丸对BGC-823细胞增殖的影响;Transwell小室模型研究五龙消癥丸对BGC-823细胞垂直侵袭和迁移能力的影响;采用ELISA法检测五龙消癥丸对血管内皮生长因子(VEGF)、基质金属蛋白酶2(MMP-2)和MMP-9表达的影响;采用Western blotting及RT-PCR法检测脂酰肌醇3-激酶(PI3K)/蛋白激酶B(Akt)/核转录因子-κB(NF-κB)信号通路中相关蛋白及m RNA的表达。结果五龙消癥丸可显著抑制BGC-823细胞的增殖、黏附、侵袭和迁移能力,显著抑制BGC-823细胞中VEGF、MMP-2和MMP-9蛋白的表达,显著抑制p-PI3K、p-Akt、磷酸化Ik B激酶-α(p-IKK-α)、p-NF-κB p65Ser 276蛋白及PI3K、Akt、IKKα、NF-κB m RNA的表达,并且呈现一定的时效和量效关系。结论五龙消癥丸通过抑制PI3K/Akt/NF-κB信号通路相关蛋白及m RNA表达,从而达到抑制BGC-823细胞的增殖、迁移、侵袭作用。

Objective To investigate the effect of Wulong Xiaozheng Pill（WXP） on the migration and invasion of human gastric cancer cell-line BGC-823 and its mechanism. Methods WXP, IGF-1, and LY294002 were added on BGC-823 cells. Then the inhibitory effect of WXP was detected by MTT assay. Transwell assay was performed to determine the migration and invasion capacity of on BGC-823 cells. Expressions of VEGF, MMP-2, and MMP-9 were detected by ELISA, while the expressions of related proteins and m RNA in PI3 K/NF-κB signaling pathway were detected by Western blotting and RT-PCR. Results WXP can inhibit the proliferation, adhesion, invasion, and migration of BGC-823 cells. In addition, WXP inhibited the expression of VEGF, MMP-2 and MMP-9 protein in BGC-823 cells. WXP significantly inhibited the expression of p-PI3 K, p-Akt, p-IKK-a, and p-NF-κB p65 Ser 276 proteins, PI3 K, Akt, IKKa, and NF-κB m RNA, which showed a time-dependent and dose-dependent manner. Conclusion WXP inhibit the capacity, migration and invasion of BGC-823 cells by blocking PI3 K/NF-κB signaling pathway.