马春林 吴红彦 李海龙 陈杰 张宣 李红亮
摘要: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)。結论 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。
关键词:参芪抑瘤方;药物血清;胃癌细胞;细胞增殖;细胞周期
DOI:10.3969/j.issn.1005-5304.2017.03.013
中图分类号:R285.5 文献标识码:A 文章编号:1005-5304(2017)03-0053-04
Effects of Medicinal Serum of Shenqi Yiliu Formula on Proliferation of Gastric Cancer MGC-803 Cells MA Chun-lin1, WU Hong-yan1,2,3, LI Hai-long1,2, CHEN Jie1, ZHANG Xuan1, LI Hong-liang1 (1. Gansu University of Chinese Medicine, Lanzhou 730000, China; 2. State Key Laboratory of Traditional Chinese Medicine Excavation Innovation and Transformation of Gansu Province, Lanzhou 730000, China; 3. Laboratory for TCM New Products Development Engineering of Gansu Province, Lanzhou 730000, China)
Abstract: 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.
Key words: Shenqi Yiliu Formula; medicinal serum; gastric cancer cell; cell proliferation; cell cycle
基金项目:甘肃中医药大学研究生创新基金(2015CX11);兰州市人才创新创业扶持项目(2015-RC-24)
通讯作者:吴红彦,E-mail:wuhy@163.com
参芪抑瘤方临床用于肿瘤的治疗,具有益气扶正、养血活血、化痰散结、清热利湿、解毒散结、通络止痛等功效。本实验在前期研究的基础上[1-3],进一步探索优化后的组方——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。
1 实验材料
1.1 药物
参芪抑瘤方(苦参、黄芪、当归、贝母等),饮片由甘肃中医药大学附属医院提供,经甘肃中医药大学附属医院杨锡仓主任药师鉴定符合2015年版《中华人民共和国药典》规定。
1.2 细胞株
胃癌MGC-803细胞株受赠于甘肃省中医方药挖掘和创新转化重点实验室。
1.3 动物
SPF级SD雌性大鼠50只,6~8周龄,体质量(200±20)g,甘肃中医药大学实验动物中心,动物合格证号2001000000198。饲养于室温20~25 ℃、湿度45%~55%的清洁级实验动物房,喂标准饲料,自由饮水。
1.4 试剂
DMEM高糖培养基(Gibco),四季青胎牛血清(浙江天杭生物科技有限公司),胰蛋白酶(Gibco),噻唑蓝(Sigma),二甲基亚砜(DMSO,Sigma),反转录试剂盒(美国Roche),扩增试剂盒(韩国BIONEER),RIPA裂解液(北京普利莱基因技术有限公司),化学发光液(美国Thermo),一抗、二抗(艾菲生物技术有限公司)。……