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时间:2020-06-04
《应用粒-巨噬细胞集落刺激因子治疗小鼠炎症性肠病的疗效研究.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、解剖科学进展ProgressofAnatomicalSciences2014Mar,20(2):123~126应用粒一巨噬细胞集落刺激因子治疗小鼠炎症性肠病的疗效研究林艳,崔月,金玉,谭悦,杨俊,郑长青(1.中国医科大学附属盛京医院消化内科;2.辽宁省人民医院内窥镜中心,辽宁沈阳110001)【摘要】目的探讨粒一巨噬细胞集落刺激因子(granulocytemacrophagecolony-stimulatingfact0r.GM—CSF)对于5%2、4、6一三硝基苯磺酸(TNBS)诱导的结肠炎BALB/c小鼠的治疗
2、作用。方法应用TNBS灌肠建立BALB/c/]~鼠结肠炎模型。结肠炎小鼠随机分为2组,在造模后3h,分别给予GM—CSF(100g/kg)或磷酸盐缓冲液(PBS)皮下注射进行治疗干预,连续6日。每13观察小鼠体重,腹泻及便血情况,记录第1,3,5日的疾病活动指数(diseaseactivityindex,DAI)评分。造模后第5天处死小鼠,获取结肠组织,根据粘连、溃疡及炎症情况计大体损伤评分。应用H—E染色判定结肠病理组织评分;获取结肠组织匀浆,应用ELISA方法检测炎症细胞因子TNF—O/.的表达。结果GM—CS
3、F的治疗明显提高了小鼠的生存率,与PBSX~照组相比,治疗组小鼠第3、5日的DAI评分、大体损伤评分及病理组织评分明显降低,GM—CSF组小鼠结肠组织中TNF一的表达水平下调。结论GM—CSF治疗减轻了小鼠的结肠炎症。【关键词】粒一巨噬细胞集落刺激因子;炎症性肠病;三硝基苯磺酸;肿瘤坏死因子一;BALB/c小鼠【中图分类号】R574.62【文献标志码】A【文章编号】1006—2947(2014)02—0123—04Granulocytemacrophagecolony——stimulatingfactorameli
4、oratesTNBS—inducedmurinecolitisLINYan,CUIYue,JINYu,TANYue,YANGJun,ZHENGChang—qing(1.DepartmentofGastroenterologyofShengjingHospitalofChinaMedicalUniversity;2.EndoscopyCenterofLiaoningProvincialPeople’sHospital,Shenyang110001,China)【Abstract】objectiveTostudythe
5、therapyeffectofgranulocytemacrophagecolony—stimulatingfactor(GM—CSF1onCrohn’Sdiseaseinducedby2,4,6一trinitr0benzenesulfonicacidsolution(TNBS)inmurine.MethodsBALB/cmicecolitiswasinducedbyrectaladministrationofTNBSthreehoursaftertheadministration,BALB/cmiceweregi
6、venGM—CSF(1O0pg/kg)orphosphate-bufferedsaline(PBS)subcutaneouslyonceadayfromday0today5.Themiceweight,stool、fecaloccultbloodwereobservedeverydayandDAI(Diseaseactivityindex,DAI)scoreswerecalculatedatday1,3,5.Thewholecolonswereobtainedandscoredforadhesion,ulcer,a
7、ndinflammation.TissuespecimensfromthedescendingcolonwereobtainedandstainedwithHEstaining.Theexpressionofpro—inflammatorycytokineproteinsTNF—O/-incolonwerefurtherexaminedbyELISA.ResultsGM—CSFtreatmentsignificantlyimprovedthesurvivalrateofcolitisBALB/cmiceanddow
8、nregulatedtheDAIscores.Thegeneraltissuescoresandhistologicalscoreswerelessseverely.thelevelsofTNF—inthecolontissuesweresignificantlylowerintheGM-CSFgroupthaninthePBSgroupfP<0.01orO
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