Inhibitional effect of small hairpin RNA on expression of MRPI gene in K562/AS2 cell line resistant to As2O3
10.3760/cma.j.issn.1009-9921.2009.07.002
- VernacularTitle:短发夹RNA抑制三氧化二砷耐药的白血病K562/AS2细胞MRPI基因表达的实验研究
- Author:
Xiaoxing SU
;
Jiacai ZHUO
;
Qingli GU
;
Wenjie XIONG
;
Xiaomei TAO
;
Ming LI
;
Qiongli ZHANG
;
Ruihong HUANG
;
Huanxun LIU
;
Lisheng CAI
;
Xin DU
- Publication Type:Journal Article
- Keywords:
RNA;
Arsenicals;
Drug resistance,neoplasm;
Genes,MRP1;
K562 cells
- From:
Journal of Leukemia & Lymphoma
2009;18(7):388-391
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the inhibitional effect of MRPI-shRNA on expression of MRP1gene in K56.2/AS2 cells resistant to arsenic trioxide. Methods Three pieces of MRPI-shRNA were designed,synthesized and transfected into K562/AS2 cells with lipesome. Expression level of MRPI mRNA were determined by real time fluorescent quantitative PCR. MRPI protein expression and intracellular accumulation of DNR were assayed with flow cytometry. Results After treated with MRPI-shRNA, the expression level of MRPI mRNA and MRPI protein in K562/AS2 cells decreased significantly(79.1±0.07) % and (62.48±0.86) %,respectively (P <0.05). The intracellular accumulation of DNR increased significantly(P < 0.05). Conclusion MRPI-shRNA can down-regulate the expression of MRPI gene in K562/AS2 cell line.
