骨髓间充质干细胞移植修复高原大鼠股骨缺损王鲲1,2,伏小平1,杨志华2,郑英2,高瞻2,高彩艳2,买超平2,哈小琴21甘肃农业大学动物医学院,甘肃省兰州市730070;2解放军兰州军区兰州总医院检验科,甘肃省干细胞与基因药物重点实验室,甘肃省兰州市730050BonemarrowmesenchymalstemcelltransplantationforrepairofratfemoraldefectsathighaltitudeWangKun1,2,FuXiao-ping1,YangZhi-hua2,ZhengYing2,GaoZhan2,GaoCai-yan2,MaiChao-ping2,HaXiao-qin21CollegeofVeterinaryMedicine,GansuAgriculturalUniversity,Lanzhou730070,GansuProvince,China;2DepartmentofClinicalLaboratory,LanzhouGeneralHospitalofLanzhouCommand,Lanzhou730050,GansuProvince,China摘要背景:对于高原地区受到环境负面影响的组织创伤,例如高原骨缺损,干细胞的特点可以提供一个良好的加速创伤修复的方法。目的:研究骨髓间充质干细胞治疗大鼠高原股骨缺损的创伤恢复效果。方法:分离提取雄性Wistar大鼠原代骨髓间充质干细胞,取第3代细胞进行细胞表型鉴定。雌性Wistar大鼠80只,制备实验性股骨圆形缺损后随机均分为平原对照组、平原骨髓间充质干细胞移植组、高原对照组、高原骨髓间充质干细胞移植组(n=20)。治疗后第30天拍X射线片观察股骨缺损区的修复情况,并于第10,20,30天分别采集股骨缺损区组织,检测其中碱性磷酸酶的含量。结果与结论:高原骨髓间充质干细胞移植组大鼠股骨缺损区愈合速度较高原对照组快,且碱性磷酸酶的含量较高原对照组高(P<0.05);平原骨髓间充质干细胞移植组的缺损区愈合速度也比平原对照组快,且碱性磷酸酶的含量也较平原对照组高(P<0.05)。平原骨髓间充质干细胞移植组的缺损区愈合速度较高原骨髓间充质干细胞移植组快,且碱性磷酸酶的含量较高原骨髓间充质干细胞移植组高(P<0.05)。说明骨髓间充质干细胞的局部移植可提高高原股骨缺损区局部的碱性磷酸酶含量,加速缺损区的创伤修复速度,但高原股骨缺损区的愈合修复较平原组慢。中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程全文链接:关键词:干细胞;骨髓干细胞;骨髓间充质干细胞;间充质干细胞;高原;股骨缺损;碱性磷酸酶;Abstract:BACKGROUND:Stemcelltransplantationcanprovideagoodwaytoacceleratewoundhealingfortissuedefectsundernegativeenvironmentalimpactsathighaltitude,suchasplateaubonedefects.OBJECTIVE:Toresearchthetherapeuticeffectsofbonemarrowmesenchymalstemcelltreatmentonratfemoraldefectsinhighaltitude.METHODS:ThebonemarrowmesenchymalstemcellswereseparatedfromthefemurandtibiaofmaleWistarrats,andthepassage3cellswereidentifiedbydetectingtheirsurfaceantigen.EightyfemaleWistarratswereoperatedforexperimentalfemoraldefectsandrandomlyallocatedintofoursequalgroups,namely,plaincontrolgroup,plaintransplantationgroup,plateaucontrolgroup,andplateautransplantationgroup.Thirtydaysaftertreatment,ratswereunderX-raytoobservetherepairmentoffemoraldefects,andtissuesfromfemoraldefectareaweresampledtodetectthelevelsofalkalinephosphataseat10,20,30days,respectively.RESULTSANDCONCLUSION:TheratsintheplateautransplantationgroupBshowedsignificantlyfasterrepairoffemoraldefectandhigherlevelofalkalinephosphatasethanthoseintheplateaucontrolgroup(P<0.05).Theratsintheplaincontrolgroupalsohadbetterhealingoffemoraldefectandhigherlevelofalkalinephosphatasethanthoseintheplaincontrolgroup(P<0.05).Furthermore,thehealingoffemoraldefectandlevelofalkalinephosphatasewerebetterintheplaintransplantationgroupthantheplateautransplantationgroup.Thesefindingsindicatethatintramusculartransplantationofbonemarrowmesenchymalstemcellscansignificantlyincreasetheregionalcontentofalkalinephosphatase,promotetheheal...