中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (23): 3609-3614.doi: 10.12307/2022.657

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

积雪草苷对肾缺血再灌注损伤模型大鼠的保护作用

朱时玉1,胡  彦1,王锁刚2,卢  鹏2,王  帝2,翟琼瑶2,王光策2   

  1. 1河南中医药大学第一临床医学院,河南省郑州市   450046;2河南中医药大学第一附属医院泌尿外科肾移植科,河南省郑州市   450000
  • 收稿日期:2021-04-09 接受日期:2021-05-26 出版日期:2022-08-18 发布日期:2022-02-15
  • 通讯作者: 王光策,主任医师,河南中医药大学第一附属医院泌尿外科肾移植科,河南省郑州市 450000
  • 作者简介:朱时玉,男,1994年生,河南省义马市人,汉族,2021年河南中医药大学毕业,硕士,医师,主要从事泌尿系结石及肿瘤、肾移植方面的研究。
  • 基金资助:
    河南省中医药科学研究专项课题(20-21ZY2188),项目负责人:王锁刚

Asiaticoside protects the kidney from ischemia-reperfusion injury in a rat model by activating nuclear factor E2-related factor 2/hemeoxygenase-1 pathway

Zhu Shiyu1, Hu Yan1, Wang Suogang2, Lu Peng2, Wang Di2, Zhai Qiongyao2, Wang Guangce2   

  1. 1The First Clinical Medical College of Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China; 2Kidney Transplant Department of Urological Surgery, the First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450000, Henan Province, China
  • Received:2021-04-09 Accepted:2021-05-26 Online:2022-08-18 Published:2022-02-15
  • Contact: Wang Guangce, Chief physician, Kidney Transplant Department of Urological Surgery, the First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450000, Henan Province, China
  • About author:Zhu Shiyu, Master, Physician, the First Clinical Medical College of Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China
  • Supported by:
    the Special Research Project of Traditional Chinese Medicine in Henan Province, No. 20-21ZY2188 (to WSG)

摘要:

文题释义:
肾缺血再灌注损伤:是指肾脏经过急性缺血后恢复供血的阶段,缺氧的过程启动了肾脏中的一系列炎症反应,缺氧造成低能量状态,再灌注后会出现一系列的坏死和凋亡,肾小管上皮细胞周围微环境发生改变,肾小管上皮细胞、肾间质细胞等释放大量趋化因子,诱发炎症风暴。由缺血再灌注损伤导致的急性肾损伤和慢性肾脏病已成为全世界范围内的医疗负担。
积雪草苷:是中药积雪草的提取物,其中以积雪草苷、羟基积雪草苷的含量最高、活性最强,具有抗氧化应激、促进组织愈合改善微循环、增强认知和保护神经、抗肿瘤、抗焦虑、抗炎、抗糖尿病、抗缺血再灌注损伤等作用。

背景:预防或减少肾缺血再灌注损伤可提高肾移植手术移植物的存活率,因此需要寻找更为安全、有效、廉价的科学药物来预防或治疗肾缺血再灌注损伤。
目的:探讨积雪草苷对肾缺血再灌注损伤模型大鼠的保护作用及相关机制。  
方法:将40只SD大鼠随机分为4组,分别为假手术组、模型组、积雪草苷组及积雪草苷+鸦胆子苦醇组,每组10只,后3组夹闭肾蒂45 min建立大鼠肾缺血再灌注损伤模型。积雪草苷组、积雪草苷+鸦胆子苦醇组预先给予大鼠积雪草苷混悬液灌胃4周,积雪草苷+鸦胆子苦醇组于造模前5 d连续腹腔注射核因子E2相关因子2特异性抑制剂鸦胆子苦醇。检测各组大鼠血清中肌酐和尿素氮水平,酶联免疫吸附实验法检测尿液中肾损伤分子1的表达,测定肾组织中超氧化物歧化酶和丙二醛表达水平,苏木精-伊红染色观察肝组织病理改变,免疫组化检测肾组织内核因子E2相关因子2蛋白的表达,蛋白质印迹法检测肾组织细胞内核因子E2相关因子2和血红素加氧酶1蛋白的表达。  
结果与结论:①与模型组比较,积雪草苷组血清肌酐和尿素氮水平明显降低(P < 0.05),尿液中肾损伤分子1表达明显降低(P < 0.05),肾组织中超氧化物歧化酶表达明显升高(P < 0.05),而丙二醛表达明显降低(P < 0.05),肾组织病理改变也明显改善;②与积雪草苷组比较,积雪草苷+鸦胆子苦醇组血清肌酐和尿素氮水平增加(P < 0.05),尿液中肾损伤分子1表达增加(P < 0.05),肾组织超氧化物歧化酶降低(P < 0.05),而丙二醛增加(P < 0.05);③同时积雪草苷能显著诱导核因子E2相关因子2的表达水平和核内移位,增加血红素加氧酶1的表达水平;④提示积雪草苷对肾缺血再灌注损伤有保护作用,其机制与激活核因子E2相关因子2/血红素加氧酶1通路有关。
缩略语:核因子E2相关因子2:NF-E2-related factor2,Nrf2;血红素加氧酶1:hemeoxygenase-1,HO-1

https://orcid.org/0000-0003-1339-0987 (朱时玉)

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: 积雪草苷, 肾, 缺血再灌注损伤, 鸦胆子苦醇, Nrf2/HO-1通路

Abstract: BACKGROUND: Prevention or reduction of kidney ischemia-reperfusion injury can improve the livability of kidney transplant. Therefore, it is necessary to develop safer, cheaper and more effective drugs to prevent or treat kidney ischemia-reperfusion injury.  
OBJECTIVE: To investigate the protective effect of asiaticoside on kideny ischemia-reperfusion injury in a rat model and its relevant mechanism.  
METHODS: A total of 40 Sprague-Dawley rats were randomly divided into four groups: sham surgery group, model group, asiaticoside group, and asiaticoside+brusatol group, with 10 rats in each group. The kidney pedicles were clamped for 45 minutes in the latter three groups to establish the rat kidney ischemia-reperfusion injury model. The rats in the asiaticoside and asiaticoside+brusatol groups were given asiaticoside suspension by gavage for 4 weeks in advance. Before modeling, the asiaticoside+brusatol group was given brusatol, a nuclear factor E2-related factor 2-specific inhibitor, by intraperitoneal injection for 5 continuous days. The levels of serum creatinine and urea nitrogen were detected. The expression of kidney injury molecule-1 in urine was detected by enzyme-linked immunosorbent assay. The expression levels of superoxide dismutase and malondialdehyde in kidney tissue were measured. Hematoxylin-eosin staining was used to observe the pathological changes of liver tissue. The protein expression of nuclear factor E2-related factor 2 protein in kidney tissue was detected by immunohistochemistry. The protein expression of nuclear factor E2-related factor 2 and hemeoxygenase-1 protein in kidney tissue cells was detected by western blot assay.  
RESULTS AND CONCLUSION: Compared with the model group, the levels of serum creatinine and urea nitrogen and urinary kidney injury molecule 1 were significantly reduced in the asiaticoside group (all P < 0.05). Asiaticoside could also significantly increase the expression of superoxide dismutase (P < 0.05), decrease the expression of malondialdehyde in kidney tissue (P < 0.05), and improve the pathological changes of kidney tissue. Compared with the asiaticoside group, the combined use of asiaticoside and bruceol could increase the levels of serum creatinine and urea nitrogen, urinary kidney injury molecule 1, and malondialdehyde in the kidney tissue, while decrease the level of superoxide dismutase in the kidney tissue (all P < 0.05). Meanwhile, asiaticoside could significantly induce the translocation of nuclear factor E2-related factor 2, and increased the expression level of hemeoxygenase-1. Overall, these findings indicate that asiaticoside can protect against kidney ischemia-reperfusion injury by activating nuclear factor E2-related factor 2/hemeoxygenase-1 pathway.

Key words: asiaticoside, kidney, ischemia-reperfusion injury, brusatol, Nrf2/HO-1 pathway

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