PPARγ激动剂抗呼吸道合胞病毒感染作用的体外研究  

PPARγagonists against respiratory syncytial virus infection in vitro study

作　　者：万春杰[1] 董琳[1] 林洁[1] 陈小芳[1] 

机构地区：[1]温州医学院附属育英儿童医院呼吸科,325027

出　　处：《中华实验和临床病毒学杂志》2011年第6期480-482,共3页Chinese Journal of Experimental and Clinical Virology

基　　金：基金项目：浙江省自然基金资助（Y2090932）;温州市科技计划对外合作基金资助（H20080054）

摘　　要：目的 探讨过氧化物酶体增殖物活化受体γ（PPARγ）激动剂的体外抗呼吸道合胞病毒（RSv）感染作用.方法 以细胞存活率和病毒抑制率为指标,应用细胞病变效应（CPE）法,观察不同浓度PPARγ激动剂对人肺腺癌（A549）细胞的CPE及RSV感染后CPE的抑制作用.采用四甲基偶氮唑蓝（MTT）比色法检测PPARγ激动剂对A549细胞的毒性作用和RSV感染后细胞存活率和病毒抑制率的影响.结果 5～25μ mol/L15-脱氧前列腺素J2（ 15 d-PGJ2）和10～50μmol/L罗格列酮干预的A549细胞未显示明显CPE,MTT比色法也显示以上浓度范围15 d-PCJ2和罗格列酮的A值明显高于RSV感染组（P＜0.01）,但两种药物相比差异无统计学意义.15d-PGJ2和罗格列酮最适浓度分别为5μmol/L和10 μmol/L.结论 PPARγ激动剂既可减轻RSV感染后A549细胞的CPE,又可提高细胞存活率,具有体外抗RSV感染作用.Objective To search the effect of PPARγ agonists for infection of RSV in vitro.Methods The CPE of Hep-2 and A549 cells induced by RSV infection were observed.The effects of 15d-PGJ2 and rosiglitazone on change of CPE of A549 cells induced by RSV infection for 48 h were observed,too.MTT assay was used to detect the rate of viral suppression,and the protective effects of 15d-PGJ2 and rosiglitazone on A549 cells induced by RSV infection for 48 h.Results A549 cells interfered by 15d-PGJ2 （5 -25 μmol/L） and rosiglitazone （10 -50 μmol/L） did not show obvious CPE,MTT assay also showed that the survival rate of A549 cells induced by RSV infection with PPARγ agonists added,was significantly higher than that of RSV infection without PPARγ agonists added,the difference was statistically significant （P 〈 0.01 ）,but comparision between the two drugs showed no statistical significance.The optimal concentrations of 15d-PGJ2 and rosiglitazone were 5 μmol/L and 10 μ mol/L respectively.Conclusions PPARγ agonist can reduce the CPE of A549 cells after RSV infection and improve the survival rate of A549 cells.PPARγ agonist can counteract the infection of RSV in A549 cells.

关 键 词：呼吸道合胞病毒 人 感染 

分 类 号：R5[医药卫生—内科学]