中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (13): 2049-2054.doi: 10.3969/j.issn.2095-4344.1644

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

白藜芦醇和胎肝干细胞移植联合治疗大鼠肝硬化

王宇翾   

  1. 天津市第四中心医院肝胆胃肠外科,天津市 300140
  • 修回日期:2018-12-15 出版日期:2019-05-08 发布日期:2019-05-08
  • 作者简介:王宇翾,男,1978年生,汉族,天津市人,2002年哈尔滨医科大学毕业,主治医师,主要从事肝胆胃肠外科学方面的研究。

Combination of resveratrol and fetal liver stem cell transplantation for treatment of liver cirrhosis in rats

Wang Yuxuan   

  1. Department of Hepatobiliary and Gastrointestinal Surgery, Tianjin 4th Center Hospital, Tianjin 300140, China
  • Revised:2018-12-15 Online:2019-05-08 Published:2019-05-08
  • About author:Wang Yuxuan, Attending physician, Department of Hepatobiliary and Gastrointestinal Surgery, Tianjin 4th Center Hospital, Tianjin 300140, China

摘要:

文章快速阅读:

文题释义:
肝干细胞:
是成体干细胞的一种,可分化为成熟肝细胞、胆管上皮细胞和胰腺上皮细胞。从理论上讲,与肝移植相比,胎肝干细胞移植具有明显优势。目前胎肝干细胞移植主要用于治疗爆发性肝功能衰竭、慢性肝病及代谢性肝病。胎肝干细胞不仅具有治疗潜能,而且为药理学及肝脏发育学的研究提供一个较好的平台。
白藜芦醇:是一种多酚类天然化合物,具有抑制炎症、抵抗癌症、缓解糖尿病和动脉硬化以及抗氧化等生物活性。在肝病治疗方面,白藜芦醇可以通过改善机体脂肪代谢和诱导细胞自噬缓解肝脏病变,还可以通过改善肝脏微循环并抑制炎症反应,从而保护肝脏细胞免受多种病理损伤,促进肝细胞的更新和再生。

 

摘要
背景:
研究发现,低剂量的白藜芦醇能够促进细胞增殖和分化,对胎肝干细胞移植治疗大鼠肝硬化有协同作用。
目的:探讨白藜芦醇与胎肝干细胞移植联合治疗大鼠肝硬化的作用及其机制。  
方法:选取84只SD成年大鼠(由北京维通利华动物实验技术有限公司提供),采用四氯化碳灌胃给药构建肝硬化模型,最终成功造模81只大鼠。造模成功后从中随机取80只大鼠随机分为4组,每组20只。对照组大鼠尾静脉注射0.5 mL的L-DMEM,胎肝干细胞组大鼠尾静脉注射0.5 mL胎肝干细胞悬液;白藜芦醇组大鼠灌胃120 mg/kg白藜芦醇,联合治疗组大鼠进行二者联合治疗,1次/d,连续治疗7 d。治疗3周后采用吲哚氰绿排泄实验测定吲哚氰绿15 min 潴留率,采用全自动生化分析仪检测血清和肝组织生化指标,苏木精-伊红染色观察肝组织形态学变化,RT-PCR、Western blot检测肝组织转化生长因子β1的表达。
结果与结论:①与对照组比较,胎肝干细胞组及白藜芦醇组大鼠血清丙氨酸氨基转移酶、天冬氨酸氨基转移酶、血清总胆红素以及肝组织丙二醛水平均显著降低(P < 0.05);血清白蛋白、总蛋白、白蛋白/球蛋白以及肝组织谷胱甘肽过氧化物酶及环磷酸鸟苷水平均显著升高(P < 0.05);联合治疗组上述生化指标水平均优于胎肝干细胞组及白藜芦醇组(P < 0.05);②胎肝干细胞组、白藜芦醇组大鼠肝细胞变性、坏死及纤维化程度均有明显减轻,联合治疗组减轻更明显;③与对照组比较,白藜芦醇干预治疗和胎肝干细胞移植治疗后吲哚氰绿15 min潴留率显著升高(P < 0.05),联合治疗组吲哚氰绿15 min潴留率进一步升高(P < 0.01);④与对照组比较,白藜芦醇组及胎肝干细胞组转化生长因子β1表达明显降低(P < 0.05),联合治疗组进一步降低(P < 0.01);⑤结果表明,白藜芦醇干预联合胎肝干细胞移植治疗能有效改善肝硬化大鼠生化指标水平,可以明显减轻大鼠肝硬化程度和肝脏病变,这可能与降低转化生长因子β1表达有关。


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程
ORCID: 0000-0002-6648-0874(王宇翾)

关键词: 肝硬化, 胎肝干细胞, 干细胞移植, 白藜芦醇, 转化生长因子β1, 肝脏病变, 血清总胆红素, 肝组织形态

Abstract:

BACKGROUND: Low-dose resveratrol can promote cell activation and show synergy with fetal liver stem cell transplantation for liver cirrhosis in rats.
OBJECTIVE: To observe and investigate the effects of resveratrol and fetal liver stem cell transplantation on the rat with liver cirrhosis. 
METHODS: Eighty-four Sprague-Dawley adult rats were intragastrically administered with carbon tetrachloride to induce liver cirrhosis, and the animal model of liver cirrhosis was successfully made in 81 rats. After the successful modeling, 80 of the 81 model rats were randomly divided into four groups (n=20/group): the rats in the control group were injected with 0.5 mL of low-dose Dulbecco’s modified Eagle’s medium into the tail vein; the rats in the fetal liver stem cell group were injected with 0.5 mL of fetal liver stem cell suspensions into the tail vein; the rats in the resveratrol group was intragastrically administered with 120 mg/kg resveratrol; and the rats in the combination group were given injection of fetal liver stem cell suspension and administration of resveratrol. All treatments were given once daily for 7 consecutive days. After 3 weeks of treatment, the indocyanine green excretion test was used to determine the 15-minute retention rate of indocyanine green. The biochemical indicators of the serum and liver tissues were detected by an automatic biochemical analyzer. Morphological changes of the liver tissue were observed by hematoxylin-eosin staining. Transforming growth factor β1 gene and protein expression in the liver tissue was detected by RT-PCR and western blot, respectively.
RESULTS AND CONCLUSION: (1) Compared with the control group, the levels of serum alanine aminotransferase, serum aspartate aminotransferase, serum total bilirubin and malondialdehyde in the liver tissue were significantly reduced in the fetal liver stem cell group and resveratrol group (P < 0.01), while serum albumin level, total protein level, albumin/globulin, and glutathione peroxidase level and cyclic guanosine monophosphate level in the liver tissue were significantly increased in these two groups (P < 0.05). These aforementioned biochemical indicators in the combination group were significantly improved as compared with the fetal liver stem cells group and resveratrol group (P < 0.05). (2) Hepatocyte degeneration, necrosis and fibrosis were significantly reduced in the three treatment groups, especially in the combination group. (3) Compared with the control group, the 15-minute retention rate of indocyanine green was significantly increased after resveratrol intervention and fetal liver stem cell transplantation (P < 0.05), and further increased after combination treatment (P < 0.01). (4) Compared with the control group, the expression of transforming growth factor β1 was significantly decreased in the resveratrol group and fetal liver stem cell group (P < 0.05), and further decreased in the combination group (P < 0.01). To conclude, resveratrol treatment combined with fetal liver stem cell transplantation can effectively improve the levels of blood biochemical markers and significantly reduce the degree of liver cirrhosis and hepatic histopathological changes in the rats with liver cirrhosis. This may be related to the decreased expression of transforming growth factor β1 gene and protein.

Key words: Liver Cirrhosis, Liver, Stem Cell Transplantation, Transforming Growth Factor beta1, Tissue Engineering

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