目的:间充质干细胞移植作为具有发展前景的脊髓损伤治疗方法之一,目前大多集中于小动物模型相关研究,大动物实验开展较少,并且对干细胞的种类选择与治疗效果仍存在争议。文章通过Meta分析间充质干细胞对大动物模型脊髓损伤相关指标的影...目的:间充质干细胞移植作为具有发展前景的脊髓损伤治疗方法之一,目前大多集中于小动物模型相关研究,大动物实验开展较少,并且对干细胞的种类选择与治疗效果仍存在争议。文章通过Meta分析间充质干细胞对大动物模型脊髓损伤相关指标的影响,评价其对脊髓损伤修复的作用。方法:计算机检索PubMed、Cochrane、OVID、Web of Science和中国知网,检索时限从建库起至2019年12月,收集关于间充质干细胞治疗大动物脊髓损伤的系列研究。由2位研究者按照纳入标准独立完成文献筛选、资料提取及方法学质量评价,采用Stata16.0进行Meta分析。结果:最终10篇文献纳入研究,Meta分析结果显示:①间充质干细胞可显著改善脊髓损伤后运动功能[I2=97.73%,MD=3.94,95%CI(2.15,5.72),P<0.01],并根据细胞来源、观察时间、移植时机、移植方式和移植类型分不同进行亚组分析:骨髓间充质干细胞组、非骨髓间充质干细胞组、短时间观察组(<2个月)、长时间观察组(≥2个月)、急性期移植组、非急性期移植组、单纯细胞移植组、异种移植组的运动评分明显高于对照组(P<0.01);而支架复合移植组运动评分相较对照组,差异无显著性意义(P>0.05);②间充质干细胞治疗组的损伤面积明显小于对照组[I2=98.05%,MD=-1.00,95%CI(-1.95,-0.04),P=0.04];③间充质干细胞治疗组与对照组之间胶质纤维酸性蛋白相对表达量差异无显著性意义[I2=99.48%,MD=80.61,95%CI(-27.48,188.70),P=0.14]。结论:间充质干细胞移植治疗对大动物脊髓损伤的运动功能和损伤修复有明显改善作用,且安全性较高。受纳入文献质量的限制,以上结论需更高质量、更大样本的随机对照实验加以验证。展开更多
Spinal cord injury(SCI)is a common disease that results in motor and sensory disorders and even lifelong paralysis..The transplantation of stem cells,such as embryonic stem cells(ESCs),induced pluripotent stem cells(i...Spinal cord injury(SCI)is a common disease that results in motor and sensory disorders and even lifelong paralysis..The transplantation of stem cells,such as embryonic stem cells(ESCs),induced pluripotent stem cells(iPSCs),mesenchymal stem cells(MSCs),or subsequently generated stem/progenitor cells,was predicted to be a promising treatment for SCI.In this study,we aimed to investigate effect of human iPSC-derived neural stem cells(hiPSC-NSCs)and umbilical cord-derived MSCs(huMSCs)in a mouse model of acute SCI.Acute SCI mice model was established and were randomly treated as phosphate-buffered saline(PBS)(control group),repaired with 1×10^(5)hiPSC-NSCs(NSC group),and 1×10^(5)huMSCs(MSC group),respectively,in a total of 54 mice.Hind limb motor function was evaluated in open-field tests using the Basso Mouse Scale(BMS)at days post operation(dpo)1,3,5,and 7 after spinal cord injury,and weekly thereafter.Spinal cord and serum samples were harvested at dpo 7,14,and 21.展开更多
文摘目的:间充质干细胞移植作为具有发展前景的脊髓损伤治疗方法之一,目前大多集中于小动物模型相关研究,大动物实验开展较少,并且对干细胞的种类选择与治疗效果仍存在争议。文章通过Meta分析间充质干细胞对大动物模型脊髓损伤相关指标的影响,评价其对脊髓损伤修复的作用。方法:计算机检索PubMed、Cochrane、OVID、Web of Science和中国知网,检索时限从建库起至2019年12月,收集关于间充质干细胞治疗大动物脊髓损伤的系列研究。由2位研究者按照纳入标准独立完成文献筛选、资料提取及方法学质量评价,采用Stata16.0进行Meta分析。结果:最终10篇文献纳入研究,Meta分析结果显示:①间充质干细胞可显著改善脊髓损伤后运动功能[I2=97.73%,MD=3.94,95%CI(2.15,5.72),P<0.01],并根据细胞来源、观察时间、移植时机、移植方式和移植类型分不同进行亚组分析:骨髓间充质干细胞组、非骨髓间充质干细胞组、短时间观察组(<2个月)、长时间观察组(≥2个月)、急性期移植组、非急性期移植组、单纯细胞移植组、异种移植组的运动评分明显高于对照组(P<0.01);而支架复合移植组运动评分相较对照组,差异无显著性意义(P>0.05);②间充质干细胞治疗组的损伤面积明显小于对照组[I2=98.05%,MD=-1.00,95%CI(-1.95,-0.04),P=0.04];③间充质干细胞治疗组与对照组之间胶质纤维酸性蛋白相对表达量差异无显著性意义[I2=99.48%,MD=80.61,95%CI(-27.48,188.70),P=0.14]。结论:间充质干细胞移植治疗对大动物脊髓损伤的运动功能和损伤修复有明显改善作用,且安全性较高。受纳入文献质量的限制,以上结论需更高质量、更大样本的随机对照实验加以验证。
文摘Spinal cord injury(SCI)is a common disease that results in motor and sensory disorders and even lifelong paralysis..The transplantation of stem cells,such as embryonic stem cells(ESCs),induced pluripotent stem cells(iPSCs),mesenchymal stem cells(MSCs),or subsequently generated stem/progenitor cells,was predicted to be a promising treatment for SCI.In this study,we aimed to investigate effect of human iPSC-derived neural stem cells(hiPSC-NSCs)and umbilical cord-derived MSCs(huMSCs)in a mouse model of acute SCI.Acute SCI mice model was established and were randomly treated as phosphate-buffered saline(PBS)(control group),repaired with 1×10^(5)hiPSC-NSCs(NSC group),and 1×10^(5)huMSCs(MSC group),respectively,in a total of 54 mice.Hind limb motor function was evaluated in open-field tests using the Basso Mouse Scale(BMS)at days post operation(dpo)1,3,5,and 7 after spinal cord injury,and weekly thereafter.Spinal cord and serum samples were harvested at dpo 7,14,and 21.
