中国组织工程研究 ›› 2020, Vol. 24 ›› Issue (26): 4176-4182.doi: 10.3969/j.issn.2095-4344.2732

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

大环内酯类抗生素对大鼠肝移植后缺血再灌注损伤的保护作用

 1,常利普2,黄长山3,宫晓光4,常顺伍4   

  1. 郑州卫生健康职业学院,1实验用品中心,2基础教学系,河南省郑州市  4500053河南省肿瘤医院肝胆外科,河南省郑州市  4500084海南省人民医院普通外科,海南省海口市  570311

  • 收稿日期:2019-09-05 修回日期:2019-09-07 接受日期:2019-11-07 出版日期:2020-09-18 发布日期:2020-09-02
  • 通讯作者: 常顺伍,博士,副主任医师,海南省人民医院普通外科,海南省海口市 570311
  • 作者简介:杨峰,男,1975年生,汉族,河南省郑州市人,新乡医学院毕业,硕士,高级讲师,主治医师,主要从事肝移植研究。
  • 基金资助:
    海南省自然科学基金资助项目(SQ2015ZRJJ0364)

Macrolide antibiotics protects against ischemia-reperfusion injury after liver transplantation in rats

Yang Feng1, Chang Lipu2, Huang Changshan3, Gong Xiaoguang4, Chang Shunwu4    

  1. 1Laboratory Supplies Center, 2Department of Basic Education, Zhengzhou Health Vocational College, Zhengzhou 450005, Henan Province, China; 3Department of Hepatobiliary Surgery, Henan Cancer Hospital, Zhengzhou 450008, Henan Province, China; 4Department of General Surgery, Hainan General Hospital, Haikou 570311, Hainan Province, China

  • Received:2019-09-05 Revised:2019-09-07 Accepted:2019-11-07 Online:2020-09-18 Published:2020-09-02
  • Contact: Chang Shunwu, MD, Associate chief physician, Department of General Surgery, Hainan General Hospital, Haikou 570311, Hainan Province, China
  • About author:Yang Feng, Master, Senior lecturer, Attending physician, Laboratory Supplies Center, Zhengzhou Health Vocational College, Zhengzhou 450005, Henan Province, China
  • Supported by:

    the Natural Science Foundation of Hainan Province, No. SQ2015ZRJJ0364

摘要:

文题释义:

原位肝移植:又称正位肝移植,指在术中阻断受体肝的下腔静脉,并切除受体肝和下腔静脉,并利用供体肝的肝上、肝下下腔静脉重建和恢复肝脏的流出道与下腔静脉的连续性。

缺血再灌注损伤:指缺血组织或器官再次恢复血液供应后,会导致自由基过量生成,且过量的自由基会对再灌注组织或器官造成氧化应激损伤。

背景:肝移植是终末期肝病和肝衰竭的标准治疗方法,而缺血再灌注损伤能影响肝移植成功率。当有限的肝脏供体可供移植时,如何降低肝缺血再灌注损伤成了肝移植的首要问题。

目的:探究大环内酯类抗生素对大鼠肝移植后肝缺血再灌注损伤的作用及机制。

方法构建自体原位肝移植大鼠模型,将Wistar大鼠随机分为大环内酯类抗生素组和对照组。大环内酯类抗生素组大鼠在肝切除前30 min,采用大环内酯类抗生素(60 mg/kg罗红霉素、20 mg/kg克拉霉素和40 mg/kg红霉素)混合液预处理供体肝脏,在原位肝移植时向门静脉中推注上述大环内酯类抗生素混合液;对照组大鼠在肝切除前30 min,同体积生理盐水预处理供体肝脏,在原位肝移植时向门静脉中推注同体积的生理盐水。肝移植后连续7 d观察大鼠存活率;检测肝移植后4872 h大鼠血清天冬氨酸氨基转移酶和丙氨酸氨基转移酶活性;苏木精-伊红染色和免疫组化检测大鼠肝组织形态学改变和Ki-67阳性细胞数;TUNEL法和蛋白质免疫印迹分别检测大鼠肝细胞凋亡数量和caspase-3cleaved caspase-3蛋白表达水平;免疫荧光和ELISA法分别检测肝移植后大鼠肝组织中Kupffer细胞数量改变和白细胞介素6、肿瘤坏死因子α和白细胞介素水平。

结果与结论:大环内酯类抗生素提高了肝移植大鼠的整体存活率,改善了移植肝脏的功能失调,减轻了肝移植后缺血再灌注的损伤程度,提高了移植肝脏的再生能力,降低了移植肝组织中凋亡细胞数和凋亡蛋白cleaved caspase-3/ caspase-3比值,降低了移植肝组织中Kupffer细胞数量和白细胞介素6、肿瘤坏死因子α和白细胞介素1β水平。以上结果提示,大环内酯类抗生素对大鼠肝移植后的肝缺血再灌注损伤起保护作用。

ORCID: 0000-0002-5646-1426(杨峰)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 大环内酯类抗生素, 原位肝移植, 缺血再灌注损伤, 肝再生, 肝功能, 保护

Abstract:

BACKGROUND: Liver transplantation is the standard treatment for end-stage liver disease and liver failure. However, ischemia-reperfusion injury can reduce the success rate of liver transplantation. When a limited number of liver donors are available for transplantation, how to reduce liver ischemia-reperfusion injury has become the primary issue in liver transplantation.

OBJECTIVE: To evaluate the effect of macrolide antibiotics on ischemia-reperfusion injury after liver transplantation in rats.

METHODS: Rat autologous orthotopic liver transplantation model was constructed. Wistar rats were randomly divided into macrolide antibiotics group and control group. In the macrolide antibiotics group, the donor liver was treated with macrolide antibiotics (60 mg/kg roxithromycin, 20 mg/kg clarithromycin and 40 mg/kg erythromycin) 30 minutes before hepatectomy, and the above macrolide antibiotic mixture was injected into the portal vein immediately after orthotopic liver transplantation. In the control group, rats were pretreated with the same volume of saline for 30 minutes before hepatectomy, and the same volume of saline was injected into the portal vein immediately after orthotopic liver transplantation. The survival rate of the rats was observed within 7 days after liver transplantation. The serum aspartate aminotransferase and alanine aminotransferase activities were detected by automatic biochemical analyzer at 48 and 72 hours after liver transplantation. Hematoxylin-eosin staining and immunohistochemistry assay were used to detect the morphological changes of liver tissues and the number of Ki-67 positive cells in liver transplantation rats. TUNEL and western blot assay were used to detect the number of apoptotic hepatocytes and the expression of caspase-3 and cleaved caspase-3 proteins in liver transplantation rats, respectively. The Kupffer cell number changes and levels of interleukin-6, interleukin-1β, and tumor necrosis factor-α in rat liver tissues after liver transplantation were detected by immunofluorescence and ELISA, respectively.

RESULTS AND CONCLUSION: Macrolide antibiotics increased the overall survival rate of liver transplanted rats, improved the dysfunction of transplanted liver, reduced the severity of ischemia-reperfusion injury after liver transplantation, increased the regenerative capacity of transplanted liver, reduced the number of apoptotic cells and the ratio of cleaved caspase-3/caspase-3 in the transplanted liver tissue, and decreased the number of Kupffer cells and the levels of interleukin-6, interleukin-1β and tumor necrosis factor-α in the transplanted liver. All the results indicate that macrolide antibiotics protect against ischemia-reperfusion injury in rats undergoing liver transplantation.

Key words: macrolide antibiotics, orthotopic liver transplantation, ischemia-reperfusion injury, liver regeneration, liver function, protection

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