中国医学创新
中國醫學創新
중국의학창신
MEDICAL INNOVATION OF CHINA
2014年
21期
26-30
,共5页
骨髓间充质干细胞%肺气肿%移植
骨髓間充質榦細胞%肺氣腫%移植
골수간충질간세포%폐기종%이식
Mesenchymal stem cells%Pulmonary emphysema%Transplant
目的:观察骨髓间充质干细胞移植在肺气肿大鼠模型肺组织内的定植情况。方法:选择健康SD大鼠34只,按随机数字表法分为MSCs干预组(A组,10只,慢阻肺大鼠,尾静脉输注MSC 1×106个/mL),肺气肿模型组(B组,10只,慢阻肺大鼠,尾静脉输注等体积PBS)及MSC对照组(C组,10只,正常大鼠,尾静脉输注MSCs 1×106个/mL),正常对照组(D组,4只,正常大鼠,尾静脉输注等体积PBS),采用烟熏法复制大鼠肺气肿模型。全骨髓培养法体外培养扩增雄性SD大鼠来源的MSCs,经GFP标记细胞后将其经尾静脉注入肺气肿模型SD大鼠体内,24 h内处死大鼠,取肺组织迅速冰冻切片,共聚焦激光显微镜下观察观察转染GPF的间充质干细胞在大鼠肺内定植情况。结果:成功培养具有分化潜能的骨髓间充质干细胞,MSCs传至第4代时有99.5%表达CD44、99.6%表达CD29等间充质干细胞表面标志,仅有0.4%表达CD34、1.0%表达CD45单核细胞以及造血干细胞表型;成功复制大鼠肺气肿模型,香烟烟雾暴露组(A、B组)平均肺泡间隔为(119.0±26.2)μm,高于对照组(C、D组)的(89.8±17.3)μm,差异有统计学意义(P<0.05);平均肺泡数为(173.9±68.3)个/mm2低于对照组的(280.3±104.0)个/mm2,差异有统计学意义(P<0.05);显微共聚焦发现MSCs经尾静脉注入大鼠体内24 h后可见A组大鼠肺组织内转染绿色荧光蛋白质粒的MSCs,而B组、C组及D组均未见转染荧光。结论:骨髓间充质干细胞经尾静脉输注入后可在肺气肿模型大鼠肺内定植,为MSCs治疗慢阻肺可能提供理论依据。
目的:觀察骨髓間充質榦細胞移植在肺氣腫大鼠模型肺組織內的定植情況。方法:選擇健康SD大鼠34隻,按隨機數字錶法分為MSCs榦預組(A組,10隻,慢阻肺大鼠,尾靜脈輸註MSC 1×106箇/mL),肺氣腫模型組(B組,10隻,慢阻肺大鼠,尾靜脈輸註等體積PBS)及MSC對照組(C組,10隻,正常大鼠,尾靜脈輸註MSCs 1×106箇/mL),正常對照組(D組,4隻,正常大鼠,尾靜脈輸註等體積PBS),採用煙熏法複製大鼠肺氣腫模型。全骨髓培養法體外培養擴增雄性SD大鼠來源的MSCs,經GFP標記細胞後將其經尾靜脈註入肺氣腫模型SD大鼠體內,24 h內處死大鼠,取肺組織迅速冰凍切片,共聚焦激光顯微鏡下觀察觀察轉染GPF的間充質榦細胞在大鼠肺內定植情況。結果:成功培養具有分化潛能的骨髓間充質榦細胞,MSCs傳至第4代時有99.5%錶達CD44、99.6%錶達CD29等間充質榦細胞錶麵標誌,僅有0.4%錶達CD34、1.0%錶達CD45單覈細胞以及造血榦細胞錶型;成功複製大鼠肺氣腫模型,香煙煙霧暴露組(A、B組)平均肺泡間隔為(119.0±26.2)μm,高于對照組(C、D組)的(89.8±17.3)μm,差異有統計學意義(P<0.05);平均肺泡數為(173.9±68.3)箇/mm2低于對照組的(280.3±104.0)箇/mm2,差異有統計學意義(P<0.05);顯微共聚焦髮現MSCs經尾靜脈註入大鼠體內24 h後可見A組大鼠肺組織內轉染綠色熒光蛋白質粒的MSCs,而B組、C組及D組均未見轉染熒光。結論:骨髓間充質榦細胞經尾靜脈輸註入後可在肺氣腫模型大鼠肺內定植,為MSCs治療慢阻肺可能提供理論依據。
목적:관찰골수간충질간세포이식재폐기종대서모형폐조직내적정식정황。방법:선택건강SD대서34지,안수궤수자표법분위MSCs간예조(A조,10지,만조폐대서,미정맥수주MSC 1×106개/mL),폐기종모형조(B조,10지,만조폐대서,미정맥수주등체적PBS)급MSC대조조(C조,10지,정상대서,미정맥수주MSCs 1×106개/mL),정상대조조(D조,4지,정상대서,미정맥수주등체적PBS),채용연훈법복제대서폐기종모형。전골수배양법체외배양확증웅성SD대서래원적MSCs,경GFP표기세포후장기경미정맥주입폐기종모형SD대서체내,24 h내처사대서,취폐조직신속빙동절편,공취초격광현미경하관찰관찰전염GPF적간충질간세포재대서폐내정식정황。결과:성공배양구유분화잠능적골수간충질간세포,MSCs전지제4대시유99.5%표체CD44、99.6%표체CD29등간충질간세포표면표지,부유0.4%표체CD34、1.0%표체CD45단핵세포이급조혈간세포표형;성공복제대서폐기종모형,향연연무폭로조(A、B조)평균폐포간격위(119.0±26.2)μm,고우대조조(C、D조)적(89.8±17.3)μm,차이유통계학의의(P<0.05);평균폐포수위(173.9±68.3)개/mm2저우대조조적(280.3±104.0)개/mm2,차이유통계학의의(P<0.05);현미공취초발현MSCs경미정맥주입대서체내24 h후가견A조대서폐조직내전염록색형광단백질립적MSCs,이B조、C조급D조균미견전염형광。결론:골수간충질간세포경미정맥수주입후가재폐기종모형대서폐내정식,위MSCs치료만조폐가능제공이론의거。
To observe the situation of bone marrow mesenchymal stem cell transplantation in rats lung tissue with emphysema.Method:34 healthy rats were randomly divided into the MSCs intervention group(the group A,10 COPD rats,tail intravenous MSC 1×106cells/mL),the emphysema model group(the group B,10 COPD rats, tail intravenous the same volume PBS),the MSC control group(the group C,10 normal rats,tail intravenous MSCs 1×106cells/mL)and the normal control group(the group D,10 normal rats,tail intravenous the same volume PBS). Copy the rats emphysema model used smoke,proliferated the male SD rats MSCs by whole bone marrow culture method in vitro. The cells with GFP labeled were injected into SD emphysema rats serum,killed the rats within 24 h,got the lung tissue to rapid frozen section. The homing capacity of mesenchymal stem cells with GPF transfection in rat lung was analyzed by observing pathological section.Result:The differentiation potential of bone marrow mesenchymal stem cells were successfully developed. 99.5%marrow mesenchymal stem cells expressed CD44,99.6%expressed CD29,0.4%expressed CD34 and 1.0%expressed CD45 when MSCs to the fourth generation. The model of rat emphysema was made successfully. The average alveolar interval in the cigarette smoke exposure group(the group A,B)was(119.0±26.2)μm higher than the control group(the group C,D),and the average number of alveolar was(173.9±68.3)/mm2 lower than the control group. The MSCs with transfection in the rats after 24 h green fluorescent protein were observed in the group A,but not in the group B,C and D. Conclusion:The bone marrow mesenchymal stem cells can colonize in pulmonary emphysema model rats by tail intravenous injection. This may provide theoretical basis for MSCs in the treatment of COPD.