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时间:2020-04-25
《即早基因c-Jun在顺铂诱发豚鼠耳蜗Corti器细胞凋亡中的作用-论文.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、听力学及言语疾病杂志2013年第21卷第2期151·实验研究·即早基因c—Jun在顺铂诱发豚鼠耳蜗Corti器细胞凋亡中的作用△邢奋丽邓毅王林娥曹克利。【摘要】目的探讨即早基因C—Jun在耳蜗细胞凋亡中的作用。方法2O只豚鼠随机分为实验组和对照组,每组1O只,实验组豚鼠腹腔注射顺铂4mg·kg_1·d~,连续4天,制备感音神经性聋动物模型,对照组每天腹腔注射等量生理盐水。两组动物耳蜗组织切片后,用HE染色、末端转移酶介导的原位缺口末端标记染色(TuNEI)技术及电镜等观察耳蜗Corti器细胞凋亡状况,用免疫组化染色方法检测正
2、常和凋亡耳蜗Corti器细胞的c—Jun表达情况。结果实验组豚鼠腹腔顺铂注射4天后,耳蜗Corti器的TuNEI阳性细胞数较对照组明显增多(P3、.1006—7299.2013.02.017网络出版时间:2012一l1—615:28网络出版地址:http://www.cnki.net/kcms/detail/42.1391.R.20121106.1528.015.html【中图分类号】R764.5【文献标识码】A【文章编号】1006—7299(2013)02—0151一O4TheRoleofC—JunAssociatedwithinOisplatin(CDDP)ApoptosisinGuineaPigCochleaXingFenli,DengYi,WangLin’e,4、CaoKeli(DepartmentofOtOIaryngOlOgy;1。‘HospitalAffiliatedtoNanjingMedicalUniversity·Nanjing,210006,China)[Abstract]ObjectiveTostudytheroleofC—Junincisplatin(CDDP)inducedapoptosisincochlearceils.MethodsTwentyguineapigswererandomlydividedintotWOgroupswith10guineapigsi5、neachgroup.ThetestgroupanimalswereinjectedCDDPinaccordancewiththedosing4mg·kg·d一intraperitonea1ly,andthecontrolgroupanimalsreceivedaninjectionofsameamountofsaline.TheapoptosisstatesintheCortiScelldeterminedbye—leetronmicroscopeandTUNEImethodandtheimmunohistochemica6、lmethodswereappliedtOexplorethediffer—encesoftheexpressionofc—JunafterCDDPwereusedfor4days.ResultsComparedwiththecontrolgroup,theTUNEI一positivecellsintheCDDPgroupsignificantlyincreased(P<0.05).TheexpressionofC—JuninCDDPgroupweresignificantlyhigherthanthatinthenorma7、lgroup(P%0.05).ConclusionTheresultspresentedadirectmorphologicalevidencefortheexpressionofC-Junwhenapoptosisoccurredinguineapigcochlea.Theexpressionofc—Junparticipatedintheregulatoryprocedureofapoptosisandmaybeapossiblefactoroftheetiologiesofsenso—rineuralhearinglo8、ss.[Keywords]C-Jun;Haircells;Apoptosis;CDDP;Hearingloss,sensorineural(SNHI)即早基因c—Jun是丝裂素活化蛋白激酶信号负责凋亡早期触发阶段的信号放大及传递,其表达转导通路(mitogen—activatedprote
3、.1006—7299.2013.02.017网络出版时间:2012一l1—615:28网络出版地址:http://www.cnki.net/kcms/detail/42.1391.R.20121106.1528.015.html【中图分类号】R764.5【文献标识码】A【文章编号】1006—7299(2013)02—0151一O4TheRoleofC—JunAssociatedwithinOisplatin(CDDP)ApoptosisinGuineaPigCochleaXingFenli,DengYi,WangLin’e,
4、CaoKeli(DepartmentofOtOIaryngOlOgy;1。‘HospitalAffiliatedtoNanjingMedicalUniversity·Nanjing,210006,China)[Abstract]ObjectiveTostudytheroleofC—Junincisplatin(CDDP)inducedapoptosisincochlearceils.MethodsTwentyguineapigswererandomlydividedintotWOgroupswith10guineapigsi
5、neachgroup.ThetestgroupanimalswereinjectedCDDPinaccordancewiththedosing4mg·kg·d一intraperitonea1ly,andthecontrolgroupanimalsreceivedaninjectionofsameamountofsaline.TheapoptosisstatesintheCortiScelldeterminedbye—leetronmicroscopeandTUNEImethodandtheimmunohistochemica
6、lmethodswereappliedtOexplorethediffer—encesoftheexpressionofc—JunafterCDDPwereusedfor4days.ResultsComparedwiththecontrolgroup,theTUNEI一positivecellsintheCDDPgroupsignificantlyincreased(P<0.05).TheexpressionofC—JuninCDDPgroupweresignificantlyhigherthanthatinthenorma
7、lgroup(P%0.05).ConclusionTheresultspresentedadirectmorphologicalevidencefortheexpressionofC-Junwhenapoptosisoccurredinguineapigcochlea.Theexpressionofc—Junparticipatedintheregulatoryprocedureofapoptosisandmaybeapossiblefactoroftheetiologiesofsenso—rineuralhearinglo
8、ss.[Keywords]C-Jun;Haircells;Apoptosis;CDDP;Hearingloss,sensorineural(SNHI)即早基因c—Jun是丝裂素活化蛋白激酶信号负责凋亡早期触发阶段的信号放大及传递,其表达转导通路(mitogen—activatedprote
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