|本期目录/Table of Contents|

[1]李旭艳,邵淑丽,张伟伟,等.质粒介导的RNAi沉默 mdr1基因增强白血病耐药细胞HT9对姜黄素的敏感性[J].江苏农业科学,2014,42(01):22-25.
 Li Xuyan,et al.Sensitivity enhancement of drug-resistant leukemia HT9 cells to curcumin by plasmid-mediated RNAi mdr1 gene[J].Jiangsu Agricultural Sciences,2014,42(01):22-25.
点击复制

质粒介导的RNAi沉默 mdr1基因增强白血病
耐药细胞HT9对姜黄素的敏感性
(PDF)
分享到:

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第42卷
期数:
2014年01期
页码:
22-25
栏目:
生物技术
出版日期:
2014-01-25

文章信息/Info

Title:
Sensitivity enhancement of drug-resistant leukemia HT9 cells to curcumin by plasmid-mediated RNAi mdr1 gene
作者:
李旭艳 邵淑丽 张伟伟 恽东泽 付博 张珍珠
齐齐哈尔大学,黑龙江齐齐哈尔 161006
Author(s):
Li Xuyanet al
关键词:
shRNApSilencer 2.1-U6 neo质粒多药耐药性HT9细胞姜黄素
Keywords:
-
分类号:
R961
DOI:
-
文献标志码:
A
摘要:
通过pSilencer 2.1质粒介导的RNAi技术沉默急性早幼粒白血病耐药HT9细胞的耐药基因mdr1表达,可提高耐药细胞对姜黄素的敏感性。通过设计合成靶向mdr1基因的shRNA干扰片段,定向克隆到pSilencer 2.1-U6 neo质粒中,成功构建沉默mdr1基因特异表达的shRNA表达载体,电转染HT9细胞后筛选阳性克隆扩大培养。采用实时荧光定量PCR、Western blot检测细胞mdr1基因表达情况,流式细胞术检测P-糖蛋白外排泵功能,MTT法和流式细胞技术检测细胞对药物敏感性和细胞周期分布。结果显示,构建的shRNA表达载体pU6/shRNA/mdr1转染HT9细胞后,HT9/pU6/shRNA细胞mdr1 mRNA表达降低了78.84%(P<0.01),P-糖蛋白的表达量降低了48.27%(P<0.05),细胞内Rho123相对荧光强度由10.8%±058%升高至73.56%±1.37%;转染细胞对姜黄素敏感性明显增强,IC50由(24.10±0. 83) μmol/L降至(5.10±014) μmol/L;耐药相对逆转率为84.74%±1.86%,与HT9细胞相比,经姜黄素处理的稳定转染细胞HT9/pU6/shRNA细胞周期阻滞在S、G2/M期。说明质粒介导的shRNA表达载体pU6/shRNA/mdr1能够稳定、持久地抑制mdr1基因表达,能有效增强HT9细胞对姜黄素的敏感性。
Abstract:
-

参考文献/References:

[1]Borst P,Elferink R O. Mammalian ABC transporters in health and disease[J]. Annual Review of Biochemistry,2002,71:537-592.
[2]McKenna S,Padua R A. Multidrug resistance in leukaemia[J]. British Journal of Haematology,1997,96(4):659-674.
[3]Nieth C,Priebsch A,Stege A,et al. Modulation of the classical multidrug resistance (MDR) phenotype by RNA interference (RNAi)[J]. FEBS Letters,2003,545(2-3):144-150.
[4]Borel F,van Logtenstein R,Koornneef A,et al. In vivo knock-down of multidrug resistance transporters ABCC1 and ABCC2 by AAV-delivered shRNAs and by artificial miRNAs[J]. Journal of RNAi and Gene Silencing,2011,7:434-442.
[5]Kim D W,Kim K O,Shin M J,et al. siRNA-based targeting of antiapoptotic genes can reverse chemoresistance in P-glycoprotein expressing chondrosarcoma cells[J]. Molecular Cancer,2009,8(1):28-38.
[6]Rumpold H,Wolf A M,Gruenewald K,et al. RNAi-mediated knockdown of P-glycoprotein using a transposon-based vector system durably restores imatinib sensitivity in imatinib-resistant CML cell lines[J]. Experimental Hematology,2005,33(7):767-775.
[7]Yagüe E,Higgins C F,Raguz S. Complete reversal of multidrug resistance by stable expression of small interfering RNAs targeting MDR1[J]. Gene Therapy,2004,11(14):1170-1174.
[8]Stege A,Priebsch A,Nieth C,et al. Stable and complete overcoming of MDR1/P-glycoprotein-mediated multidrug resistance in human gastric carcinoma cells by RNA interference[J]. Cancer Gene Therapy,2004,11(11):699-706.
[9]厉红元,车艺,汤为学. 姜黄素对人实体瘤细胞和白血病细胞作用的比较[J]. 第三军医大学学报,2004,26(9):770-773.
[10]Lu J J,Cai Y J,Ding J. The short-time treatment with curcumin sufficiently decreases cell viability,induces apoptosis and copper enhances these effects in multidrug-resistant K562/A02 cells[J]. Molecular and Cellular Biochemistry,2012,360(1/2):253-260.
[11]Pickford A S,Cogoni C. RNA-mediatedgene silencing[J]. Cellular and Molecular Life Sciences,2003,60(5):871-882.
[12]Lipardi C,Wei Q,Paterson B M. RNAi as random degradative PCR:siRNA primers convert mRNA into dsRNAs that are degraded generate new siRNA[J]. Cell,2001,107(3):297-307.
[13]Semizarov D,Frost L,Sarthy A,et al. Specificity of short interfering RNA determined through gene expression signatures[J]. Proceedings of the National Academy of Sciences of the United States of America,2003,100(11):6347-6352.
[14]K W K,Koike H,Sugaya K. RNA interference with small hairpin RNAs transcribed from a human U6 promotor-driven DNA vector[J]. Journal of Pharmacological Sciences,2003,93(2):214-217.
[15]Donzé O,Picard D. RNA interference in mammalian cells using siRNAs synthesized with T7 RNA polymerase[J]. Nucleic Acids Research,2002,30(10):e46.

相似文献/References:

备注/Memo

备注/Memo:
收稿日期:2013-06-06
基金项目:黑龙江省自然科学基金(编号:C200624);黑龙江省教育厅科技项目(编号:11511447、12511611)。
作者简介:李旭艳(1982—),女,山东阳谷人,硕士,讲师,从事分子生物学研究。Tel:(0452)2742695;E-mail:lxy0702@126.com。
通信作者:邵淑丽,博士,教授,从事分子生物学研究。Tel:(0452)2738219;E-mail:shshl32@163.com。
更新日期/Last Update: 2014-01-25