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时间:2020-05-09
《白介素13受体α2在哮喘小鼠肺组织细胞内表达与气道重塑的关系.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、·30·2315年2月第8卷第1期ChinJhlngDis(H~tronicFMifion),February:·论著·白介素13受体2在哮喘小鼠肺组织细胞内表达与气道重塑的关系王正东姚汉清闵凌峰徐兴祥【摘要】目的探讨白介素13受体(IL一13Rot2)与气道重塑的的关系。方法用OVA腹腔注射致敏SPF级BALB/c小鼠,雾化吸人激发制作哮喘模型,同时予地塞米松腹腔注射干预,最后一次致敏后24h处死小鼠,观察并测量肺组织形态学改变,用RT—PCR和免疫组化法分别检测小鼠肺组织中IL一13Rc~2mRNA和蛋白的表达及TGF.B1
2、mRNA表达。结果哮喘小鼠与对照组、地塞米松组小鼠比较,支气管管壁(17.584-0.78)vs.(12.61±0.87)vs.(13.89±0.94)、平滑肌面积(6.714-0.83)125.(4.614-0.46)vs.(5.624-0.53)均明显增加,P<0.叭,RT—PCR发现肺组织中IL一13Ra2mRNA(0.670-4-0.183)1)s.(0.0754-0.058)vs.(0.2624-0.138)和TGF一131mRNA(0.7044-0.168)vs.(0.317±0.140)vs.(0.3584-0.0
3、98)明显增高,P<0.01,免疫组化发现IL.13RoL2蛋白表达(52.11±6.30)vs.(17.804-4.09)vs.(22.87±3.76)明显增高,P<0.01。结论IL一13Ro.2在哮喘小鼠肺组织表达增加,与气道重塑密切相关。【关键词】支气管哮喘;气道重塑;白细胞介素13;受体中图法分类号:R563文献标识码:ARelationshipbetweeninterleukin-13receptora2expressionandairwayremodelinginasthmaticmiceWangZhengdong
4、,YaoHanqing,MinLingfeng,Xingxiang(DepartmentofRespiratoryMedicine,NorthernJiangsuPeoplesHospital,Yangzhou225001,China)Correspondingauthor:XuXingxiang,Email:xuxx63@sina.corn【Abstract】ObjectiveToinvestigatetherelationshipbetweeninterleukin一13receptora2(IL一13Ra2)andairw
5、ayremodeling.MethodsSPFlevelBALB/cmicewereinjectedwithOVAintraperitonealbysensitization,andinhalationstimulation,anddexamethasoneinterventionbyintraperitonealiniection.Miceweresacrificed24hafterthelastsensitization.Itwasobservedthatmorphologicalchangesinmicelungtissu
6、e.IL一13R0【2mRNA.TGF一131mRNAandIL一13Rtx2proteinexpressioninmicelungtissuesweredetectedbyreversetranscription—polymerasechainreaction(RT—PCR)andimmunohistochemistyrespectively.ResultsComparedwiththecontrolgroup,dexamethasonegroup,thebronchialwallofasthmaticmicebecameth
7、icker(17.584-0.78)vs.(12.614-0.87)眦(13.89±0.94),P<0.01.andtheirsmoothmuscleareawasmuchthickertoo(6.71±0.83)vs.(4.614-0.46)vs.(5.624-0.53),P<0.01.RT.PCRfoundthatIL.13Rd2mRNA(0.6704-0.183)us.(0.0754-0.058)vs.(0.2624-0.138)andTGF.131mRNA(0.7044-0.168)(0.317±0.140)vs.(0.
8、3584-0.098)significantlyincreasedinlungtissue,P<0.O1,andimmunohistochemistryshowedthatIL一13Ra2proteinexpression(52.114_-6.30)us.(17
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