中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (6): 848-854.doi: 10.3969/j.issn.2095-4344.2016.06.013

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

脂肪间充质干细胞经肝动脉移植治疗晚期肝病

郭宪立1,刘 跃1,周利敏1,胡 玥2   

  1.  1河北医科大学第二医院感染科,河北省石家庄市 050000;2河北大学附属医院急诊科,河北省保定市 071000
  • 收稿日期:2015-01-09 出版日期:2016-02-05 发布日期:2016-02-05
  • 作者简介:郭宪立,男,1959年生,河北省大名县人,汉族,硕士,副主任医师,主要从事心血管系统、呼吸系统、消化系统急危重症的救治研究。

Adipose-derived mesenchymal stem cell transplantation via the hepatic artery for the treatment of advanced liver diseases

Guo Xian-li1, Liu Yue1, Zhou Li-min1, Hu Yue2   

  1. 1Department of Infection, Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China; 2Department of Emergency, Affiliated Hospital of Hebei University, Baoding 071000, Hebei Province, China)
  • Received:2015-01-09 Online:2016-02-05 Published:2016-02-05
  • About author:Guo Xian-li, Master, Associate chief physician, Department of Infection, Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China

摘要:

文章快速阅读:

文题释义:

晚期肝病:主要指晚期的肝硬化,肝硬化是由一种或多种病因长期或反复作用形成的弥漫性肝损害。诱导肝硬化发生的原因为病毒感染,肝组织病理组织学上有广泛的肝细胞坏死、残存肝细胞结节性再生、结缔组织增生与纤维隔形成,导致肝小叶结构破坏和假小叶形成,肝脏逐渐变形、变硬而发展为肝硬化。
干细胞移植的途径:干细胞移植的途径有肝动脉、门静脉、肝内、外周静脉等多种途径,其中外周静脉移植创伤小,操作简单,但此途径经过全身的血液循环使到达肝内的细胞数量减少;肝内途径移植是直接将细胞注射到肝脏内,使细胞在肝脏的定植率高,但容易损伤肝脏,导致肝破裂等;肝动脉移植通过介入的方法从股动脉穿刺插管经肝动脉进行细胞移植,该方法有利于细胞在肝内定植,增加定植量。

 

背景:干细胞移植是晚期肝病比较有前景的治疗方法,脂肪间充质干细胞是继骨髓间充质干细胞后的又一研究热点。

目的:探讨经肝动脉移植大鼠脂肪间充质干细胞对晚期肝病的影响。
方法:将45只SD大鼠随机分为3组,对照组、模型组和移植组各15只。模型组和移植组皮下注射四氯化碳诱导建立大鼠肝硬化模型,移植组大鼠经肝动脉注入1 mL CFSE 标记的脂肪间充质干细胞,模型组经肝动脉注入等量的生理盐水,对照组不予处理。移植治疗后4周,观察各组大鼠的肝脏病理组织学变化,肝功能及肝纤维化程度。
结果与结论:①在大鼠的肝脏内见到绿色荧光标记的脂肪间充质干细胞。②经苏木精-伊红染色和Masson染色后发现:模型组大鼠肝小叶结构不清,有假小叶形成,细胞浊肿疏松,部分变性坏死,见炎症细胞浸润;对照组大鼠肝组织未见异常。移植组大鼠的肝脏病理组织学改变介于模型组和对照组之间。③模型组大鼠的血清白蛋白水平低于对照组(P < 0.05),胆红素、转氨酶和Ⅳ型胶原水平明显高于对照组(P < 0.05);移植组大鼠的血清白蛋白水平高于模型组(P < 0.05),胆红素、转氨酶和Ⅳ型胶原低于模型组(P < 0.05)。④由此可见脂肪间充质干细胞移植治疗可以改善肝硬化大鼠的肝脏功能,减轻肝纤维化程度。 

关键词: 干细胞, 移植, 脂肪间充质干细胞, 晚期肝病, 细胞移植, 肝硬化, 肝功能

Abstract:

BACKGROUND: Stem cell transplantation is a promising treatment for advanced liver diseases, and adipose-derived mesenchymal stem cells are a hot topic following bone marrow mesenchymal stem cells.
OBJECTIVE: To explore the therapeutic effect of adipose-derived mesenchymal stem cells transplantation via the hepatic artery on advanced liver diseases in rats.
METHODS: Forty-five rats were randomized into three groups, 15 rats in each group: control group, model group and transplantation group. Rat models of liver cirrhosis were made in the latter two groups through subcutaneous injection of carbon tetrachloride. Then, 1 mL of CFSE-labeled adipose-derived mesenchymal stem cells was infused via the hepatic artery in the transplantation group, and the same volume of normal saline was infused in the model group. Control group had no treatment. Pathological changes, liver function and degree of hepatic fibrosis were observed in the three groups at 4 weeks after treatment.
RESULTS AND CONCLUSION: After transplantation, green fluorescence-labeled adipose-derived mesenchymal stem cells were seen in the liver of rats. Hematoxylin-eosin staining and Masson staining showed unclear hepatic lobule structure in the model group with the formation of false lobules, cell cloudy swelling and loose, some degeneration and necrosis, and inflammatory cell infiltration; in the control group, there was nothing abnormal in the liver tissues of rats in the control group; in the transplantation group, the pathological changes of the rat liver were better than those in the model group, but worse than those in the control group. Compared with the model group, the level of serum albumin was higher in the control and transplantation group (P < 0.05), and the levels of bilirubin, aminotransferase and type IV collagen were lower in the control and transplantation group (P < 0.05). Thus, it can be seen that adipose-derived mesenchymal stem cell transplantation can improve liver function and reduce liver fibrosis in cirrhotic rats.