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时间:2020-05-19
《米诺环素对PC12细胞缺氧缺糖损伤后神经突生长的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、重庆医学2015年2月第44卷第5期6O5论著·基础研究doi:10.3969/j.issn.1671—8348.2015.05.009米诺环素对PC12细胞缺氧缺糖损伤后神经突生长的影响陶涛,秦新月,冯金洲,罗华。,李小刚(1.重庆医科大学附属第一医院神经内科400016;2.泸州医学院附属医院神经内科,四川泸州646000)摘要:目的探讨米诺环素对大鼠嗜铬细胞瘤细胞(PC12)缺氧缺糖(OGD)损伤后细胞存活率及神经突生长的影响。方法分别缺氧缺糖2、4、6h及8h建立PC12细胞oGD损伤模型,将细胞分为正常对照组
2、,OGD组和不同浓度的(0.1、1.0/,M和10.0M)米诺环素治疗组,在缺氧缺糖/复氧24h后,用CCK一8法检测细胞存活率,免疫荧光法标记MAP一2并在荧光显微镜下观察神经突的生长,Westernblot法检测各组GAP一43蛋白的表达水平。结果与0GD组比较,米诺环素能显著提0GD后PC12细胞的存活率[(46.1±2.9)vs.(77.0士2.5),P<0.oi],促进PC12细胞OGD损伤后神经突的生长,同时上调轴突再生蛋白GA43的表达[(0.344-0.04)vs.(2.11士0.10),P3、。结论米诺环素能减轻0GD损伤所致PC12细胞的死亡,并促进细胞神经突的生长。关键词:米诺环素;神经突生长;氧糖剥夺;PC12细胞中图分类号:R743.31文献标识码:A文章编号:1671-8348(2015)05—0605—03EffectsofminocyclineonneuriteoutgrowthofPC12cellsfollowingoxygenglucosedeprivationTaoTao,QinXinyue,FengJinzhou,LuoHua,LiXiaogang(1.Department0_,Neu4、rology,theFirstAffiliatedHospitalofChongqingMedicalUniversity,Chongqing400016,China;2.DepartmentofNeurology,theAffiliatedHospitalofLuzhouMedicalCollege,Luzhou,Sichuan646000,China)Abstract:0bjectiveToinvestigatetheeffectsofminocyclineoncellviabilityandneuriteoutg5、rowthofpheochromocytomacells(PC12)afteroxygen—glucosedeprivation(OGD)injury.MethodsPC12cellswereexposedtoOGDinsultfor2,4,6,8htoestab—lishacerebralischemiamode1invitro.High—differentiatedPC12cellswerecultivatedandrandomlydividedintothreegroups:con—trolgroup,OGDgr6、oupandvariousdosesofminocycline(0.1,1.0,10.0“M)treatedgroup.24hafterOGD-reperfusion,PC12cellsviabilitywasassessedbvCCK-8assay,theneuritewaslabeledwithMAP一2byimmunofluoresceneeandneuritelengthwasmeas—uredbytheImage—ProPlus7.0software,GAP_43proteinexpressionwasdet7、erminedbyWesternblotting.ResultsComparedtotheOGDgroups,minocyclineinducedaconcentration-dependentincreaseincellsviability[-(46.1士2.9)vs.(77.0士2.5),P<0.o1-1,improvedneuriteoutgrowthandincreasedtheexpressionofGAP一43proteininPC12ceilsafterOGDinjury(E(o.34±o.04)vs.(8、2.114-0.10),P<0.01].ConclusionMinocyclinecouldprotectagainstoxygenglucosedeprivationi~uryandpromoteneuriteoutgrowth.Thisfindingsuggestsminocyclinemaybeanove1therapyfo
3、。结论米诺环素能减轻0GD损伤所致PC12细胞的死亡,并促进细胞神经突的生长。关键词:米诺环素;神经突生长;氧糖剥夺;PC12细胞中图分类号:R743.31文献标识码:A文章编号:1671-8348(2015)05—0605—03EffectsofminocyclineonneuriteoutgrowthofPC12cellsfollowingoxygenglucosedeprivationTaoTao,QinXinyue,FengJinzhou,LuoHua,LiXiaogang(1.Department0_,Neu
4、rology,theFirstAffiliatedHospitalofChongqingMedicalUniversity,Chongqing400016,China;2.DepartmentofNeurology,theAffiliatedHospitalofLuzhouMedicalCollege,Luzhou,Sichuan646000,China)Abstract:0bjectiveToinvestigatetheeffectsofminocyclineoncellviabilityandneuriteoutg
5、rowthofpheochromocytomacells(PC12)afteroxygen—glucosedeprivation(OGD)injury.MethodsPC12cellswereexposedtoOGDinsultfor2,4,6,8htoestab—lishacerebralischemiamode1invitro.High—differentiatedPC12cellswerecultivatedandrandomlydividedintothreegroups:con—trolgroup,OGDgr
6、oupandvariousdosesofminocycline(0.1,1.0,10.0“M)treatedgroup.24hafterOGD-reperfusion,PC12cellsviabilitywasassessedbvCCK-8assay,theneuritewaslabeledwithMAP一2byimmunofluoresceneeandneuritelengthwasmeas—uredbytheImage—ProPlus7.0software,GAP_43proteinexpressionwasdet
7、erminedbyWesternblotting.ResultsComparedtotheOGDgroups,minocyclineinducedaconcentration-dependentincreaseincellsviability[-(46.1士2.9)vs.(77.0士2.5),P<0.o1-1,improvedneuriteoutgrowthandincreasedtheexpressionofGAP一43proteininPC12ceilsafterOGDinjury(E(o.34±o.04)vs.(
8、2.114-0.10),P<0.01].ConclusionMinocyclinecouldprotectagainstoxygenglucosedeprivationi~uryandpromoteneuriteoutgrowth.Thisfindingsuggestsminocyclinemaybeanove1therapyfo
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