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1、·30·2315年2月第8卷第1期ChinJhlngDis(H~tronicFMifion),F(xiàn)ebruary:·論著·白介素13受體2在哮喘小鼠肺組織細胞內(nèi)表達與氣道重塑的關(guān)系王正東姚漢清閔凌峰徐興祥【摘要】目的探討白介素13受體(IL一13Rot2)與氣道重塑的的關(guān)系。方法用OVA腹腔注射致敏SPF級BALB/c小鼠,霧化吸人激發(fā)制作哮喘模型,同時予地塞米松腹腔注射干預(yù),最后一次致敏后24h處死小鼠,觀察并測量肺組織形態(tài)學(xué)改變,用RT—PCR和免疫組化法分別檢測小鼠肺組織中IL一13Rc~2mRNA和蛋白的表達及TGF.B1
2、mRNA表達。結(jié)果哮喘小鼠與對照組、地塞米松組小鼠比較,支氣管管壁(17.584-0.78)vs.(12.61±0.87)vs.(13.89±0.94)、平滑肌面積(6.714-0.83)125.(4.614-0.46)vs.(5.624-0.53)均明顯增加,P<0.叭,RT—PCR發(fā)現(xiàn)肺組織中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)明顯增高,P<0.01,免疫組化發(fā)現(xiàn)IL.13RoL2蛋白表達(52.11±6.30)vs.(17.804-4.09)vs.(22.87±3.76)明顯增高,P<0.01。結(jié)論IL一13Ro.2在哮喘小鼠肺組織表達增加,與氣道重塑密切相關(guān)?!娟P(guān)鍵詞】支氣管哮喘;氣道重塑;白細胞介素13;受體中圖法分類號:R563文獻標識碼: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)眥(13.89±0.94),P<0.01.a(chǎn)ndtheirsmoothmuscleareawasmuchthickertoo(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