亚砷酸钠诱导人膀胱上皮细胞环氧化酶2和前列腺素E2表达的实验观察  被引量:1

Experimental observation of sodium arsenite induced cyciooxygenase 2 and prostaglandin E2 expression in non-tumorigenic human urothelial cells

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作  者:王惠惠[1] 席淑华[1] 王菲[1] 郑怡[1] 张强[1] 王达[1] 刘博莹[1] 刘盛男[1] 孙贵范[1] 

机构地区:[1]中国医科大学公共卫生学院劳动卫生教研室,沈阳110001

出  处:《中华地方病学杂志》2013年第1期21-23,共3页Chinese Journal of Endemiology

基  金:国家自然科学基金(30771865、81072244);辽宁省教育厅课题(2009A756)

摘  要:目的观察不同浓度亚砷酸钠(NaAs02)对人膀胱上皮细胞(sV—HUC—1)环氧化酶2(COX-2)和前列腺素E2(PGE2)表达的诱导作用。方法不同浓度NaAs02[0(对照)、1、2、4、8、10μmol/L]作用于SV—HUC-1细胞24h后,应用实时定量(RT)-PCR法检测SV—HUC-1细胞内COX-2mRNA表达水平,酶联免疫吸附试验(ELISA)测定细胞培养液中PGE2含量。结果与对照组(1100±0.00)比较,2、4、8、10μmol/LNaAs02组SV—HUC-1细胞内COX-2mRNA表达(1.73±0.25、2.45±0.23、1.94±0.71、1.75±0.43)明显升高(P均〈0.05),并且4p,mol/LNaAs02组SV—HUC—l细胞内COX-2mRNA表达达到最高;随NaAs02浓度的增高,细胞培养液中PGE2含量呈升高趋势,表现为剂量反应关系,其中4、8、10μmol/LNaAs02组细胞培养液中PGE2含量[(9.59±1.27)、(10.40±2.19)、(12.93±1.33)ng/g]明显高于对照组[(6.64±1.46)ng/g,P均〈0.05]。结论NaAs02能够诱导SV—HUC-1细胞COX-2mRNA表达和PGE2分泌。Objective To study the expression of cyclooxygenase-2(COX-2) and prostaglandin E2(PGE2) induced by sodium arsenite(NaAsO2) in non-tumorigenic human urothelial cells (SV-HUC-1). Methods SV-HUC-1 cells were treated with different dose of NaAsO2[O(control), 1, 2, 4, 8, 10 μmol/L] and cultured for 24 h. The mRNA level of COX-2 in SV-HUC-1 cells was detected by RT-PCR. The PGE2 concentrations in cell-culture medium were analyzed by enzyme-linked immunosorbent assay(ELISA) kit. Results Compared with control group (1.00 + 0.00), COX-2 mRNA levels significantly increased in SV-HUC-1 cells in 2, 4, 8, 10 μmol/L NaAsO2 exposed groups(1.73 ± 0.25, 2.45 ± 0.23, 1.94 ± 0.71, 1.75 ± 0.43, all P 〈 0.05). With NaAsO2 concentration increased, the level of PGE2 in the cell culture medium tended to increase, and it showed a significant dose- response relationship. Compared with the control group[ (6.64 ± 1.46)ng/g], PGE2 levels in culture medium of SV- HUC-1 cells significantly increased in 4, 8, 10 μmol/L NaAsO2 exposed groups[(9.59 ± 1.27), (10.40 ± 2.19), (12.93 ±: 1.33)ng/g, all P 〈 0.05]. Conclusions NaAsO2 can induce COX-2 mRNA expression and PGE2 secretion in SV-HUC-1 cells.

关 键 词:亚砷酸盐类 环氧化酶2 地诺前列酮 

分 类 号:R114[医药卫生—卫生毒理学]

 

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