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核磷蛋白在肝癌细胞多药耐药中的作用 被引量:1

The role and possible mechanisms of nucleophosmin in multidrug resistance of hepatoma cells
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摘要 目的探讨核磷蛋白(NPM)在肝癌细胞多药耐药中的作用及其机制。方法通过质粒转染建立稳定的高表达NPM的肝癌细胞株:HepG2/NPM和SMMC7721/NPM细胞株,通过细胞计数试剂盒(CCK-8)检测细胞对化疗药物的半数抑制浓度(IC50)值;划痕实验和Transwell实验检测细胞迁移及侵袭能力;Westernblot和实时定量聚合酶链反应(Real-timePCR)检测各基因的蛋白和mRNA表达。结果与亲本细胞比较,NPM高表达的细胞对化疗药物的耐药性增加,阿霉素(ADM:8.31±0.89比0.38±0.13,P=0.000;14.84±1.61比1.69±0.31,P=0.001),顺铂(DDP:4.23±1.18比1.33±0.29,P=0.047;8.42±0.85比3.03±0.55,P:0.000),5-氟尿嘧啶(5-Fu:20.75±1.02比7.97±0.97,P=0.001;16.28±1.64比5.85±1.04,P=0.000),细胞的迁移和侵袭能力增强,且多药耐药基因1(MDR-1:3.85±0.67比0.97±0.22,P=0.043;4.33±0.77比1.04±0.27,P=0.021),多药耐药相关蛋白1(MRP-1:3.76±1.04比1.01±0.21,P=0.033;4.75±0.88比1.01±0.17,P=0.028)及P.糖蛋白(P-gP:2.06±0.27比1.04±0.19,P=0.000;3.47±0.93比1.02±0.17,P=0.000)的表达均增加。结论NPM可以增强肝癌细胞对化疗药物的耐药性以及迁移和侵袭能力,其机制可能与上调MDR-1/P-gP信号通路的表达相关。 Objective To explore the mechanism of nucleophosmln (NPM) in HCC cells. Methods pEGFP/NPM was synthesized and transfected into HepG2 and SMMC7721 to stable high - expression NPM HCC cell lines. Cell counting kit - 8 ( CCK - 8) assay was applied to detect cell viability; Wound assay and Transwell assay were used to detecte cell migration and invasion ability; the protein and mRNA expression of related genes were detected by Western blotting and real - time quantitative polymerase chain reaction (Real-time PCR). Results Cell viability [adriamycin (ADM) : 8.31 ±0.89 vs. 0.38 s0. 13, P=0. O00; 14.84±1.61 vs. 1.69±0.31, P=0.001; cisplatin (DDP):4.23+1.18vs. 1.33±0.29, P=0.047; 8.42+0.85 vs. 3.03 ±0.55, P=0.000, 5 -fluorouracil (5 -Fu): 20. 75 ±1.02 vs. 7.97 ± 0. 97, P = 0. 1301 ; 16. 28 ± 1.64 vs. 5, 85 ± 1, 04, P = 0. 000 ] , invasion and migration were in- creased in high - expression NPM HCC cell lines, and the expression of multidrug resistance 1 gene (MDR1 -1.3.85 ±0.67 vs. 0,97 ±0.22, P=0.043; 4.33 ±0.77 vs. 1.04±0.27, P=0.021), mul- tidrug resistance - associated protein 1 ( MRP - 1 : 3.76 ± 1, 04 vs. 1.01 ± 0. 21, P = 0. 033 ; 4. 75 ± 0. 88 vs. 1.01 ± 0. 17, P ± 0. 028 ) and permeability glycoprotein ( P - gp : 2. 06 ± 0. 27 vs. 1.04 ± 0. 19, P = 0. 0130 ; 3.47 ± 0.93 vs. 1.02 ±: 0. 17, P = 0. 0130) were increased. Conclusion NPM HCC cell lines expressed increased resistance to chemotherapeutic drugs, enhanced migration and invasion ability, and increased expression of MDR - 1, MRP - 1 and P - gp.
作者 李辉宇 付西峰 贺杰峰 田彦璋 朱军军 赵浩亮 Li Huiyu;Fu Xifeng;He Jiefeng;Tian Yanzhang;Zhu Junjun;Zhao Haoliang(Department of General Surgery,Shanxi Academy of Medical Sciences,Shanxi Dayi Hospital,Taiyuan 030032,China)
出处 《中华实验外科杂志》 CAS CSCD 北大核心 2018年第10期1852-1854,共3页 Chinese Journal of Experimental Surgery
基金 山西省基础研究项目(青年科技研究基金)(2011021035.3) 山西省卫生厅科技攻关计划项目(200810)
关键词 肝癌 多药耐药 核磷蛋白 P-糖蛋白 Hepatocellular carcinoma Multidrug resistance Nucleophosmin Permeability glycoprotein
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