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《环氧化酶2抑制剂塞来昔布诱导 NB4细胞凋亡的研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、·1676·国际检验医学杂志2014年7月第35卷第13期IntJLabMed,July2014,Vo1.35,No.13·基础实验研究论著·环氧化酶2抑制剂塞来昔布诱导NB4细胞凋亡的研究梅序桥,吴阿阳,郑源海,柯靖兰。,郑意,赵志坚(1.福建医科大学附属漳州市医院检验科,福建漳州363000;2.福建省漳州市血液中心,福建漳州363000)摘要:目的研究环氧化酶2(COX一2)选择性抑制剂塞来昔布对髓性白血病细胞株Nt34凋亡的影响,探讨塞来昔布诱导细胞凋亡的机制。方法RT-PCR检测不同细胞系中c0X一2mRNA表达,MTT法检测NB4细胞增殖抑
2、制,DNALadder试验分析NB4细胞DNA片段化,流式细胞术检测NB4细胞Bcl-2蛋白的表达。结果与未加药处理组相比,不同浓度塞来昔布作用后DNALadder片段随浓度的增加而更为明显。不同用药组25mol/I、50mol/L、100mol/L塞来昔布组Bcl一2蛋白表达率分别为(71.69±1.65)、(34.51±2.53)和(29.28±2.38),与空白对照组Bcl一2蛋白表达率为85.34±2.89相比,50gmol/L、100/~mol/L塞来昔布组Bcl-2蛋白明显下降(P3、B4细胞Bcl-2蛋白表达致诱导其凋亡。关键词:环氧水解酶类;细胞凋亡;逆转录聚合酶链反应DoI:10.3969/j.issn.1673-4130.2014.13.005文献标识码:A文章编号:1673—4130(2O14)13-1676-03StudyoneffectofCOX-2selectiveinhibitoreelecoxiboninducingapoptosisofNB4MeiXuqiao,WuAyang,ZhengYuanhai,KeJinglan,Zheng,ZhaoZhijian。1.DepartmentofClinicalLabor4、atory,Af{iliatedZhangzhouMunicipalHospital,FujianMedicalUniversity,Zhangzhou,Fujian363000,China;2.ZhangzhouBloodCenter,Zhangzhou,Fujianprovince363000,China)Abstract:0bjectiveTostudytheeffectsofC0X一2selectiveinhibitorcelecoxibontheapoptosisofacutepromyelocyticleuke—miaNB4cellline5、,andtoinvestigateitsapoptosismechanisms.MethodsTheexpressionofCOX-2mRNAindifferentcelllineswasdetectedbyreversetranscriptpolymerasechainreaction(Rr_PCR).AftertreatmentofNB4withdifferentdosesofcelecoxib,thein—hibitionofNB4growthwasassayedbyMTT,andtheDNAfragmentationwasexaminedbyt6、heDNAladdertest.ThelevelofBcl一2proteinexpressionwasassayedbytheflowcytometry.ResultsAscomparedwiththeno-medicationtreatmentgroup,theDNAladderfragmentsbecamemoreandmoreobviousafterthetreatmentbydifferentdosesofcelecoxib.TheexpressionratesofBcl一2proteininthedifferentdosesofcelecox7、ibgroups(25,50,100~tmol/L)were(71.69±1.65),(34.51士2.53)and(29.28±2.38)respectively,comparedwiththeBcl一2proteinexpressionrate(85.34±2.89)intheblankcontrolgroup,theexpressionrateofBcl一2proteinindifferentdosesofcelecoxibgroups(50,100/lmol/L)wassignificantlydecreased(P<0.05).Conclus8、ionCelecoxibasCOX-2selectiveinhibitorcouldevide
3、B4细胞Bcl-2蛋白表达致诱导其凋亡。关键词:环氧水解酶类;细胞凋亡;逆转录聚合酶链反应DoI:10.3969/j.issn.1673-4130.2014.13.005文献标识码:A文章编号:1673—4130(2O14)13-1676-03StudyoneffectofCOX-2selectiveinhibitoreelecoxiboninducingapoptosisofNB4MeiXuqiao,WuAyang,ZhengYuanhai,KeJinglan,Zheng,ZhaoZhijian。1.DepartmentofClinicalLabor
4、atory,Af{iliatedZhangzhouMunicipalHospital,FujianMedicalUniversity,Zhangzhou,Fujian363000,China;2.ZhangzhouBloodCenter,Zhangzhou,Fujianprovince363000,China)Abstract:0bjectiveTostudytheeffectsofC0X一2selectiveinhibitorcelecoxibontheapoptosisofacutepromyelocyticleuke—miaNB4cellline
5、,andtoinvestigateitsapoptosismechanisms.MethodsTheexpressionofCOX-2mRNAindifferentcelllineswasdetectedbyreversetranscriptpolymerasechainreaction(Rr_PCR).AftertreatmentofNB4withdifferentdosesofcelecoxib,thein—hibitionofNB4growthwasassayedbyMTT,andtheDNAfragmentationwasexaminedbyt
6、heDNAladdertest.ThelevelofBcl一2proteinexpressionwasassayedbytheflowcytometry.ResultsAscomparedwiththeno-medicationtreatmentgroup,theDNAladderfragmentsbecamemoreandmoreobviousafterthetreatmentbydifferentdosesofcelecoxib.TheexpressionratesofBcl一2proteininthedifferentdosesofcelecox
7、ibgroups(25,50,100~tmol/L)were(71.69±1.65),(34.51士2.53)and(29.28±2.38)respectively,comparedwiththeBcl一2proteinexpressionrate(85.34±2.89)intheblankcontrolgroup,theexpressionrateofBcl一2proteinindifferentdosesofcelecoxibgroups(50,100/lmol/L)wassignificantlydecreased(P<0.05).Conclus
8、ionCelecoxibasCOX-2selectiveinhibitorcouldevide
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