中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (6): 841-847.doi: 10.3969/j.issn.2095-4344.2016.06.012

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

骨髓间充质干细胞经尾静脉移植治疗肝纤维化

王长武1,房新辉2   

  1. 1郑州大学第五附属医院消化内科,河南省郑州市 450052;2河南省人民医院消化科,河南省郑州市 450003
  • 收稿日期:2016-01-04 出版日期:2016-02-05 发布日期:2016-02-05
  • 作者简介:王长武,男,1971年生,河南省郑州市人,汉族,1992年郑州大学医学院毕业,副主任医师,主要从事消化内科临床肝硬化方面的研究。

Bone marrow mesenchymal stem cell transplantation via the tail vein for liver fibrosis

Wang Chang-wu1, Fang Xin-hui2   

  1. 1Department of Digestion, Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China; 2Department of Digestion, Hebei Provincial People’s Hospital, Zhengzhou 450003, Henan Province, China
  • Received:2016-01-04 Online:2016-02-05 Published:2016-02-05
  • About author:Wang Chang-wu, Associate chief physician, Department of Digestion, Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China

摘要:

文章快速阅读:

文题释义:

骨髓间充质干细胞:骨髓内存在的一类非造血干细胞,也称骨髓基质干细胞。移植到体内可分布于多种组织和器官,并具有多向分化潜能,能够向成骨系细胞、肝细胞、网状细胞、脂肪细胞和内皮细胞等分化。骨髓间充质干细胞具有针对多种疾病发挥治疗作用的潜能,目前有研究发现,骨髓间充质干细胞能够显著性改善肝病的发展过程,延长生存时间1年以上。
肝纤维化:是肝脏纤维结缔组织的过度沉积,各种病因所致反复或持续的慢性肝实质炎症、坏死可导致肝脏持续不断的纤维增生而形成肝纤维化。从许多慢性肝病,特别是慢性病毒性肝炎的临床及病理演变来看,肝纤维化是慢性肝病发展到肝硬化必经之阶段。动物研究中多采用四氯化碳致肝脏纤维化的模型,该模型相对稳定,相关病理生理指标均与临床症状相似。

 

背景:肝纤维化是终末肝病的早期阶段,对肝纤维化进行有效治疗可以防止终末肝病的发生,骨髓间充质干细胞是治疗肝纤维化的一种比较有前景的治疗方法。
目的:探讨骨髓间充质干细胞对大鼠肝纤维化的治疗作用。
方法:将18只SD大鼠随机分为3组,对照组、模型组和移植组。模型组和移植组应用四氯化碳诱导建立大鼠肝纤维化模型,造模后移植组大鼠经尾静脉缓慢注入1 mL骨髓间充质干细胞(5×105个),模型组经尾静脉注入等量的生理盐水;对照组大鼠不予任何处理。移植治疗后4周,检测各组大鼠肝纤维化、肝功能指标,观察大鼠肝脏病理组织学变化。

结果与结论:①对照组肝脏组织结构正常;模型组肝脏组织内门管区见纤维组织增生,有炎症细胞浸润,肝细胞空泡变性,排列紊乱,组织结构破坏;移植组肝脏组织破坏介于正常组和模型组之间。②移植组肝纤维化指标血清透明质酸酶、血清Ⅳ型胶原、血清Ⅲ型前胶原水平均明显低于模型组(P < 0.05);移植组肝功能指标血清谷丙转氨酶、血清白蛋白、谷草转氨酶水平均明显低于模型组(P < 0.05)。③结果表明四氯化碳可以诱导大鼠肝纤维化,骨髓间充质干细胞移植可以减轻肝脏纤维化程度,改善肝脏功能。 

ORCID: 0000-0001-6087-0671 (王长武)

关键词: 干细胞, 移植, 肝纤维化, 骨髓间充质干细胞, 细胞移植, 肝功能, 四氯化碳

Abstract:

BACKGROUND: Liver fibrosis is the early stage of terminal liver diseases. Effective treatment for liver fibrosis can prevent the occurrence of terminal liver diseases. Bone marrow mesenchymal stem cell transplantation is a promising method to treat liver fibrosis.
OBJECTIVE: To study the therapeutic effect of bone marrow mesenchymal stem cells on liver fibrosis in rats.
METHODS: Eighteen Sprague-Dawely rats were randomized into three groups: control, model and cell transplantation groups. Animal models of carbon tetrachloride-induced liver fibrosis were made in the latter two groups. After modeling, 1 mL bone marrow mesenchymal stem cells (5×105) or the same volume of normal saline was injected via the tail vein into the rats in the cell transplantation and model groups, respectively. Rats in the control group were given no treatment. Degree of liver fibrosis, liver function, histological changes of the liver were detected and observed in the three groups at 4 weeks after treatment.
RESULTS AND CONCLUSION: In the control group, the liver tissues had normal structure with no fibrosis; in the model group, proliferation of fibrous tissues in the portal area of the liver, inflammatory cell infiltration, vacuolar degeneration and irregular arrangement of liver cells, and tissue structure damage were observed; in the transplantation group, liver tissue damage was severer than the control group but milder than the model group. Levels of serum hyaluronidase, type IV collagen and procollagen III were significantly lower in the cell transplantation group than the model group (P < 0.05). These findings indicate that bone marrow mesenchymal stem cell transplantation can alleviate liver fibrosis and improve liver function in rats with carbon tetrachloride-induced liver fibrosis.