中国癌症杂志 ›› 2013, Vol. 23 ›› Issue (7): 493-498.doi: 10.3969/j.issn.1007-3969.2013.07.003

• 论著 • 上一篇    下一篇

人胃癌耐药细胞株中锌指蛋白139和多药耐药基因表达的关系及意义

李勇,赵群,檀碧波,范立侨,刘庆伟,焦志凯,赵雪峰,郝英杰   

  1. 河北医科大学第四医院外三科,河北 石家庄 050011
  • 出版日期:2013-07-25 发布日期:2014-03-03
  • 通信作者: 李勇 E-mail:li_yong_hbth@126.com
  • 基金资助:
    国家自然科学基金(No:81072033);
    河北省自然科学基金(No:C2010000619);
    河北省普通高校强势特色学科资助项目(No:冀教高[2005]52);
    河北省卫生厅科研基金资助项目(No:20110460)

Relationship between ZNF139 and multidrug resistance(MDR) related genes in SGC7901 and SGC7901/ADR cell lines

LI Yong,ZHAO Qun,TAN Bi-bo,FAN Li-qiao,LIU Qing-wei,JIAO Zhi-kai,ZHAO Xue-feng,HAO Ying-jie   

  1. Department of Gastrointestinal Surgery, the Fourth Affiliated Hospital, Hebei Medical University, Shijiazhuang Hebei 050011, China
  • Published:2013-07-25 Online:2014-03-03
  • Contact: LI Yong E-mail: li_yong_hbth@126.com

摘要:

背景与目的:研究发现锌指蛋白139(ZNF139)在胃癌中表达异常,但ZNF139与胃癌的多药耐药性(multidrugresistanceMDR)关系尚不明确。本研究检测了人胃癌细胞株SGC7901和耐药细胞株SGC7901/ADRZNF139MRP-1MDR1/P-gpGST-π的mRNA和蛋白表达情况,并对其表达关系和意义进行分析。方法:体外培养SGC7901SGC7901/ADR,逆转录-聚合酶连反应(reverse transcription-polymerase chain reactionRT-PCR)检测两种细胞ZNF139MRP-1MDR1/P-gpGST-π mRNA表达情况,采用蛋白质印迹法(Western blot)法检测各基因蛋白表达变化情况。合成针对ZNF139的小干扰RNA(siRNA-ZNF139)重组质粒并转染SGC7901/ADR,检测转染前后SGC7901/ADRMRP-1MDR1/P-gpGST-π表达的变化。结果:SGC7901SGC7901/ADR两种细胞中均有ZNF139MRP-1MDR1/P-gpGST-π mRNA和蛋白阳性表达,SGC7901/ADR细胞中ZNF139MRP-1MDR1/P-gpGST-π mRNA和蛋白表达均明显高于SGC7901细胞(P<0.05)。转染siRNA-ZNF139SGC7901/ADR细胞中ZNF139表达明显受到抑制,MRP-1MDR1/P-gpGST-π表达也明显降低(P<0.05)结论:ZNF139通过上调MRP-1MDR1/P-gpGST-π基因表达而参与胃癌多药耐药形成。

关键词: 锌指蛋白139, 胃癌, 多药耐药性

Abstract:

Background and purpose: It was reported that zinc finger protein 139 (ZNF139) was expressed aberrantly in gastric cancer. But the relationship between ZNF139 and multidrug resistance (MDR) of gastric cancer is still not clear. The purpose of this research was to investigate the expressions and significance of ZNF139, MRP-1, MDR1/P-gp, GST-π in human gastric carcinoma cell lines SGC7901 and SGC7901/ADR. Methods: The expressions of ZNF139, MRP-1, MDR1/P-gp, GST-π were determined with RT-PCR and Western blot in SGC7901 and SGC7901/ADR cell lines. Then siRNA recombinant plasmid of targeting ZNF139 gene was constructed and imported into gastric cancer cell line SGC7901/ADR, and the expressions of MRP-1, MDR1/P-gp, GST-π were tested simultaneously. Results: The expressions of ZNF139, MRP-1, MDR1/P-gp, GST-π were higher in SGC7901/ADR than in SGC7901(P<0.05). ZNF139 was inhibited obviously after siRNA-ZNF139 was transfected into SGC7901/ADR,and expression of MRP-1, MDR1/P-gp, GST-πdecreased(P<0.05). Conclusion: ZNF139 may be invovled in multidrug resistance (MDR) of gastric cancer by up-regulating MRP-1, MDR1/P-gp and GST-π.

Key words: Zinc finger protein 139, Gastric cancer, Multidrug resistance