中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (11): 1730-1737.doi: 10.3969/j.issn.2095-4344.1100

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

川芎嗪对膜性肾病模型大鼠肾脏的保护作用

程闰夏1,梁  静2,刘  刚3,杨琳琳1,张  瑶4,曹  灵1   

  1.  (1西南医科大学附属医院肾病内科,四川省泸州市  646000;2四川省人民医院东院肾内科,四川省成都市  610000;3北京大学第一医院肾内科,北京市  100034;4成都医学院第一附属医院肾病内科,四川省成都市  610000)
  • 收稿日期:2018-11-19 出版日期:2019-04-18 发布日期:2019-04-18
  • 通讯作者: 曹灵,教授,硕士,西南医科大学附属医院肾病内科,四川省泸州市 646000
  • 作者简介:程闰夏,女,1993年生,四川省泸州市人,汉族,西南医科大学在读硕士,主要从事膜性肾病的研究。
  • 基金资助:

    国家自然科学基金项目(81370809),项目负责人:刘刚,泸州市人民政府-西南医科大学科技战略合作项目(2017LZXNYD-J13),项目负责人:曹灵

Protective effect of tetramethylpyrazine on kidney in rats with membranous nephropathy

Cheng Runxia1, Liang Jing2, Liu Gang3, Yang Linlin1, Zhang Yao4, Cao Ling1   

  1.  (1Department of Nephrology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China; 2Department of Nephrology, East Campus of Sichuan Provincial People’s Hospital, Chengdu 610000, Sichuan Province, China; 3Department of Nephrology, Peking University First Hospital, Beijing 100034, China; 4Department of Nephrology, the First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China)
  • Received:2018-11-19 Online:2019-04-18 Published:2019-04-18
  • Contact: Cao Ling, Professor, Master, Department of Nephrology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • About author:Cheng Runxia, Master candidate, Department of Nephrology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81370809 (to LG); the Science and Technology Strategic Cooperation Project of Ganzhou Municipal Government-Southwest Medical University, No. 2017LZXNYD-J13 (to CL)

摘要:

文章快速阅读:

文题释义:
膜性肾病:是一组由免疫复合物介导的足细胞足突融合,继而产生大量蛋白尿的肾小球疾病,是成人肾病综合征的常见病理类型,发病率逐年升高。
WT-1:是一种锌指样转录因子,表达在足细胞核,维持足细胞表型,维持毛细血管襻正常结构,稳定肾小球滤过功能,仅局限表达于足细胞,其染色间接反映肾小球足细胞数量。

摘要
背景:
膜性肾病是成年人肾病综合征的常见病理类型,足细胞数目减少是膜性肾病发病的原因之一,而凋亡又是足细胞减少的原因,足细胞凋亡受到Bcl-2和Bax两种凋亡调控因子的调控,川芎嗪对于肾脏疾病有较好的治疗作用。
目的:观察川芎嗪对阳离子化牛血清白蛋白诱导的膜性肾病大鼠的肾脏保护作用。
方法:将西南医科大学实验动物中心提供的72只大鼠随机分为正常组、模型组和川芎嗪组,各24只,后2组采用改良Border法复制膜性肾病模型。川芎嗪组造模开始后每天腹腔注射川芎嗪注射液100 mg/kg,连续4周。
结果与结论:①与正常组相比,模型组可见肾小球系膜区及毛细血管壁IgG强阳性颗粒样沉积;光镜下可见肾小球体积增大,马松染色见嗜复红蛋白沉积,六胺银染色见基底膜弥漫性增厚、“钉突”形成;电镜可见肾小球基底膜增厚,足细胞的足突融合,肾小球上皮电子致密物沉积。与模型组相比,川芎嗪组IgG荧光强度及分布无明显差异,但肾小球基底膜增厚的程度及足突融合程度都有轻微改善;②与正常组相比,其他2组的血肌酐、24 h尿蛋白升高,肌酐清除率降低,Bcl-2表达水平、WT-1阳性细胞比例减少,Bax表达水平、细胞凋亡数量增加;与模型组相比,川芎嗪组的血清白蛋白、肌酐清除率较高、血肌酐较低,Bcl-2表达水平和WT-1阳性细胞比例增加,Bax表达水平、细胞凋亡数量较少;③提示川芎嗪能改善阳离子牛血清白蛋白诱导膜性肾病大鼠的肾功能,升高血清白蛋白,具有一定疗效;川芎嗪可能通过调控Bcl-2和Bax途径减少膜性肾病大鼠肾固有细胞凋亡,抑制足细胞数量的减少,起到肾脏保护作用。

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
ORCID: 0000-0001-6229-6976(曹灵)

关键词: 膜性肾病, 川芎嗪, 细胞凋亡, Bcl-2, Bax, WT-1, 足细胞, Bax/Bcl-2, 肾小球, 肾小球基底膜

Abstract:

BACKGROUND: Membranous nephropathy, a common type of nephrotic syndrome in adults, is characterized by podocyte decrease caused by apoptosis. Podocyte apoptosis is regulated by Bcl-2 and Bax. Tetramethylpyrazine exerts good effectiveness in the treatment of renal diseases.
OBJECTIVE: To observe the protective effect of tetramethylpyrazine on cationized bovine serum albumin-induced membranous nephropathy in rats.
METHODS: Seventy-two rats provided by Laboratory Animal Center of Southwest University were randomly divided into normal, model and tetramethylpyrazine groups (n=24 per group). Rabbits in the latter two groups underwent membranous nephropathy modeling by modified Border method. The tetramethylpyrazine group received intraperitoneal injection of 100 mg/kg tetramethylpyrazine for four consecutive weeks.
RESULTS AND CONCLUSION: Compared with the normal group, the model group showed strong IgG-like deposition in the glomerular mesangial area and capillary wall; glomerular volume increased, as shown by light microscopy. Masson staining showed chlorocruorin deposition. Gomori methenamine silver staining showed diffuse thickening of basement membrane and formation of "nail spikes". Electron microscope showed thickening of the glomerular basement membrane, fusion of foot process, and deposition of electron dense deposits on the glomerular epithelium. Compared with the model group, there was no significant difference in the fluorescence intensity and distribution of IgG in the tetramethylpyrazine group, but the degree of glomerular basement membrane thickening and the degree of foot process fusion were slightly improved. Compared with the normal group, the serum creatinine and 24-hour urinary protein levels were increased, creatinine clearance was decreased, expression level of Bcl-2 and the number of WT-1 positive cells were increased, and Bax expression level and the number of apoptotic cells were decreased in the other two groups. To conclude, tetramethylpyrazine can improve the renal function of rats with membranous nephropathy induced by cationized bovine serum albumin and increase serum albumin. It protects the kidney by reducing the cell apoptosis through regulating Bcl-2 and Bax pathways and inhibiting the reduction of podocytes.

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

Key words: Nephrosis, Apoptosis, Tissue Engineering

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