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页数:5页
时间:2019-05-24
《骨髓间充质干细胞治疗小鼠自身免疫性肝炎》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、万方数据主堡趟丝苤查;!!i生!旦筮!i鲞笠!塑£!i!』垡g!』!业!型!!!!!y!!:!;!丛!:!骨髓间充质干细胞治疗小鼠自身免疫性肝炎陈楠刘应莉刘文天王邦茂孙朝侠王玫韩明哲【摘要】目的探讨骨髓问充质干细胞(MSC)移植对小鼠自身免疫性肝炎(AIH)的治疗作用及机制。方法采用C57BL/6小鼠肝特异性抗原S-100与弗氏完全佐剂诱导同种系44只小鼠建立AIH模型。造模后取6只小鼠验证AIH模型,余38只分为3组,MSC移植组(A组)14只进行MSC尾静脉注射治疗,地塞米松(DXM)治疗组(B组)12只予DXM
2、腹腔注射治疗,PBS对照组(c组)12只予腹腔注射PBS。健康对照组(D组)18只未造模未予任何处理。于实验第5、9周测小鼠体质量,测血清ALT水平,处死各组小鼠取肝组织进行病理学检查并行肝脏炎症活动度Knodell评分,分离小鼠脾脏T淋巴细胞行增殖抑制实验。统计学分析采用秩和检验、方差分析和t检验。结果A、B组小鼠治疗后体质量均呈上升趋势(F=15.678,P%0.01;F一3.730,P一0.037),C组治疗前后变化差异无统计学意义(P>o.05)。实验第5、9周,A、B组小鼠血清ALT水平逐渐下降,各时间点比
3、较差异有统计学意义(F一20.267,P<0.01;F=4.277,P一0.034);C组小鼠血清ALT水平治疗前后变化差异无统计学意义(P>0.05)。实验第5、9周,A组小鼠血清ALT降低程度大于B组,差异均有统计学意义(£一3.566、3.218,P均<0.05)。实验第5、9周,A、B组小鼠Knodell评分逐渐下降,各时间点比较差异有统计学意义(F一8.070,P一0.003;F一6.547,P一0.009);C组小鼠Knodell评分治疗前后变化差异无统计学意义(P>0.05)。实验第9周时,A、B、C三
4、组小鼠Knodell评分间差异有统计学意义(F一4.477,P=0.029)。体外脾淋巴细胞增殖抑制实验显示,MSC培养上清液能显著抑制S-100抗原和刀豆蛋白A刺激的T淋巴细胞增殖,吸光度值分别为0.267±0.167比0.217±0.128和0.165±0.187比0.082±0.051,差异均有统计学意义(£一7.187、4.602,P均5、eautoimmunehepatitistreatedbybonemarrowmesenchymalstemcellCHENNan。LjUYing—li,L,UWen—tian,WANGBang—mao,SUNChao—xia,WANGMei,HANMing—zhe.DepartmentofGastroenterology,TianjinUniversityGeneralHospital,Tianjin300052,ChinaCorrespondingauthor:LI【,Wen—tian,Email:wentian6、liul60@gmail.com【Abstract]0bjectiveToexplorethetherapeuticeffectsandmechanismofbonemarrowmesenchymalstemcells(MSC)transplantationinmiceautoimmunehepatitis(AIH).MethodsAIHmodelwasestablishedin44C57BL/6mice,whichwereinducedbyhomologousseriesliver-specificantigenS7、-100andFreund’scompleteadjuvant.Aftermodeling,sixmicewerecollectedforAIHmodelconfirming.Theother38miceweredividedintothreegroups.FourteenmiceofMSCtransplantationgroup(groupA)weretreatedbyMSCtailveininjection,12miceofdexamethasone(DXM)group(groupB)weretreatedbyD8、XMintraperitonealinjection,and12miceofPBScontrolgroup(groupC)receivedphosphatebuffersaline(PBS)intraperitonealinjection.EighteenmiceofhealthycontrolDOI:10.3760/cma.j.issn.02
5、eautoimmunehepatitistreatedbybonemarrowmesenchymalstemcellCHENNan。LjUYing—li,L,UWen—tian,WANGBang—mao,SUNChao—xia,WANGMei,HANMing—zhe.DepartmentofGastroenterology,TianjinUniversityGeneralHospital,Tianjin300052,ChinaCorrespondingauthor:LI【,Wen—tian,Email:wentian
6、liul60@gmail.com【Abstract]0bjectiveToexplorethetherapeuticeffectsandmechanismofbonemarrowmesenchymalstemcells(MSC)transplantationinmiceautoimmunehepatitis(AIH).MethodsAIHmodelwasestablishedin44C57BL/6mice,whichwereinducedbyhomologousseriesliver-specificantigenS
7、-100andFreund’scompleteadjuvant.Aftermodeling,sixmicewerecollectedforAIHmodelconfirming.Theother38miceweredividedintothreegroups.FourteenmiceofMSCtransplantationgroup(groupA)weretreatedbyMSCtailveininjection,12miceofdexamethasone(DXM)group(groupB)weretreatedbyD
8、XMintraperitonealinjection,and12miceofPBScontrolgroup(groupC)receivedphosphatebuffersaline(PBS)intraperitonealinjection.EighteenmiceofhealthycontrolDOI:10.3760/cma.j.issn.02
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