2013
DOI: 10.3724/sp.j.1206.2012.00306
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Protective Effects of Mesenchymal Stem Cells Against Radiation-induced Intestinal Injury

Abstract: 间充质干细胞移植对放射性肠 损伤修复作用的实验研究5Gy 60 Co 酌 射线单次照射,剂量率为 100cGy/min. 照射后 B 组小鼠经尾静脉注射生理盐水,C 组小鼠移植 MSCs. 于移植 后第 15 天取小鼠空肠标本,通过免疫荧光方法检测 MSCs 在受损肠道的定植和分化情况. 结果表明,治疗组小鼠的生存状 况明显好于模型组小鼠,病理切片显示小肠黏膜得到修复,免疫荧光结果显示 MSCs 可定植于辐射损伤的肠道,并表达波形 蛋白(vimentin)和 琢-SMA. MSCs 移植入肠损伤的小鼠体内后可在受损肠道定植,并向间质细胞分化,参与辐射损伤的修复.

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