Stem Cell Res Ther:MSC可以改善HS患者的肝再生以及增加可用于移植的供体器官的数量

2020-03-18 MedSci原创 MedSci原创

肝脏具有明显的再生能力,可以补偿丧失或受损的肝组织。但是,先前存在的病理异常(例如肝脂肪变性(HS))会抑制内源性再生过程,成为肝脏手术和活体供体移植的障碍。

肝脏具有明显的再生能力,可以补偿丧失或受损的肝组织。但是,先前存在的病理异常(例如肝脂肪变性(HS))会抑制内源性再生过程,成为肝脏手术和活体供体移植的障碍。

 

最近的证据表明,多能间质基质细胞(MSCs)的使用可以改善肝功能,并增加患有肝损伤的患者的肝再生潜力。由于HS是慢性肝病的最常见形式,因此在这项研究中,我们评估了严重HS伴肝再生受损的动物模型中MSC在肝再生中的作用。

 

C57BL/6小鼠接受常规饮食(正常小鼠)或高脂饮食(肥胖小鼠)诱导HS。饮食暴露30周后,进行70%肝切除术(Hpx),将正常和肥胖小鼠分为两组,在Hpx后立即通过尾静脉接受5××105个MSCs或载体。

 

结果证实存在肝脂肪变性时,肝再生具有明显的抑制作用,而通过注入MSCs可以促进肝再生反应。具体而言,MSC给药改善了肝细胞的增殖反应,PCNA标记指数,DNA合成,肝功能,还减少了凋亡性肝细胞的数量。这些作用可能与MSC分泌营养因子的旁分泌以及与细胞增殖有关的关键细胞因子和生长因子的肝上调有关,最终提高了小鼠的存活率。

 

总之,该研究结果表明,MSC代表了一种有希望的治疗策略,可以改善HS患者的肝再生以及增加可用于移植的供体器官的数量。

 

原始出处:

 

Fernando EzquerJaviera Bahamonde, et al., Administration of multipotent mesenchymal stromal cells restores liver regeneration and improves liver function in obese mice with hepatic steatosis after partial hepatectomy. Stem Cell Res Ther. 2017; 8: 20. doi: 10.1186/s13287-016-0469-y

 

 

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    2021-02-12 feather85
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    2020-08-15 docwu2019
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    2020-03-20 huanbaofeng
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