中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (50): 7549-7556.doi: 10.3969/j.issn.2095-4344.2016.50.015

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

脂肪间充质干细胞移植联合人工虫草多糖改善肾病综合征的高凝血状态及肾功能

郭志伯1,张晨洁2,马李娜3,高大维4,宋聚星5,李小静5   

  1. 保定市第二中心医院,1血肾科,2透析科,3妇产科,4检验科,5病理科,河北省保定市  072750
  • 修回日期:2016-10-20 出版日期:2016-12-02 发布日期:2016-12-02
  • 作者简介:郭志伯,男,1982年生,河北省隆尧县人,汉族,2007年河北医科大学毕业,医师,主要从事肾脏内科方面的研究。

Adipose-derived mesenchymal stem cell transplantation combined with cordyceps polysaccharide improves renal function and hypercoagulable state of rats with nephrotic syndrome

Guo Zhi-bo1, Zhang Chen-jie2, Ma Li-na3, Gao Da-wei4, Song Ju-xing5, Li Xiao-jing5   

  1. 1Department of Hematology and Nephrology, 2Department of Dialysis, 3Department of Gynecology and Obstetrics, 4Clinical Laboratory, 5Department of Pathology, Baoding Second Central Hospital, Baoding 072750, Hebei Province, China
  • Revised:2016-10-20 Online:2016-12-02 Published:2016-12-02
  • About author:Guo Zhi-bo, Physician, Department of Hematology and Nephrology, Baoding Second Central Hospital, Baoding 072750, Hebei Province, China

摘要:

文章快速阅读:

文题释义:
脂肪间充质干细胞:
是脂肪组织中一类多能性干细胞。由于脂肪组织来源广泛、取材容易、不涉及伦理问题、便于自体移植、给患者带来的痛苦较小,因此日益受到研究者的重视。目前研究人员已成功地在体内、体外条件下,将其诱导分化形成脂肪、骨、软骨、肌肉等组织类型细胞。
虫草多糖:是由甘露糖、虫草素、腺苷、半乳糖、阿拉伯糖、木糖精、葡萄糖、岩藻糖组成的多聚糖。实验证明,虫草多糖可提高人体免疫功能,升高白细胞,临床已用于治疗恶性肿瘤。

 

摘要
背景:
临床上常将人工虫草多糖作为肾病综合征的辅助药。采用阿霉素建立SD大鼠肾病综合征模型是经典的实验性肾病综合征模型之一,该模型的临床表现及病理变化均类似于人类微小病变肾病。
目的:观察人工虫草多糖与脂肪间充质干细胞联合应用对肾病综合征大鼠肾功能及凝血的影响。
方法:体外培养脂肪间充质干细胞制备细胞悬液,并对悬液进行PKH26标记。50只SD大鼠随机取10只为正常组(不予任何处理),余40只SD大鼠静脉注射阿霉素建立阿霉素肾病大鼠模型,随机均分为4组,模型组不作处理;脂肪间充质干细胞组尾部静脉注射脂肪间充质干细胞连续3 d;人工虫草多糖组灌胃人工虫草多糖连续12周;联合组连续3 d尾静脉注射干细胞,同时灌胃人工虫草多糖连续12周。实验12周测定各组大鼠 24 h 尿蛋白定量、血清血脂指标、肌酐、尿素氮及凝血指标变化;光镜下观察双肾组织病理学变化;荧光显微镜观测PKH26标记的脂肪间充质干细胞存活及分布情况,采用RT-PCR技术检测肾组织中Hpa基因表达情况。
结果与结论:①检测指标:脂肪间充质干细胞组、人工虫草多糖组及联合组的 24 h 尿蛋白定量及血清总胆固醇、三酰甘油、低密度脂蛋白、肌酐、尿素氮水平均明显低于模型组(P < 0.05),而血清总蛋白、白蛋白、高密度脂蛋白水平则明显高于模型组(P < 0.05)。联合组各项指标与脂肪间充质干细胞组及人工虫草多糖组比较,差异有显著性意义(P < 0.05);②血液高凝状态:脂肪间充质干细胞组、人工虫草多糖组大鼠的血液高凝状态较模型组明显缓解,联合组进一步缓解(P < 0.05);③双肾组织病理变化:联合组的双肾组织病理改善情况明显优于脂肪间充质干细胞组和人工虫草多糖组,脂肪间充质干细胞组和人工虫草多糖组较模型组稍有改善,但不及联合组;④荧光显微镜观测PKH26标记的脂肪间充质干细胞:联合组多于脂肪间充质干细胞组及人工虫草多糖组;⑤Hpa基因表达:模型组较正常组明显增加,脂肪间充质干细胞组、人工虫草多糖组较模型组减少,联合组明显减少(P < 0.05);⑥结果提示,脂肪间充质干细胞移植联合人工虫草多糖能够改善肾病综合征大鼠的肾功能及血液高凝状态,减轻肾组织的病理学损害。

 

 

关键词: 干细胞, 移植, 人工虫草多糖, 脂肪间充质干细胞, 大鼠, 肾病综合征, 肾功能, 凝血

Abstract:

BACKGROUND: Cordyceps polysaccharide is a commonly used adjuvant drug for clinical treatment of nephrotic syndrome. As a classic model of nephrotic syndrome induced by adriamycin, the Sprague-Dawley rat model of nephrotic syndrome exhibits similar clinical manifestations and pathological changes to minimal-change nephropathy in humans.
OBJECTIVE: To observe the effect of adipose-derived mesenchymal stem cells (ADMSCs) transplantation combined with cordyceps polysaccharide on renal function and hypercoagulable state in rats with nephrotic syndrome.
METHODS: ADMSCs suspension was made in vitro and labeled using PKH26. Fifty Sprague-Dawley rats were randomized into normal (no intervention), model, ADMSCs, cordyceps polysaccharide and combined treatment groups (n=10/group). Adriamycin administration was performed to make rat models of nephrotic syndrome in the latter three groups. After modeling, model rats were respectively given no treatment, ADMSCs intravenously for 3 days, cordyceps polysaccharide intragastrically for 12 weeks, or their combined use. Then, 24-hour urinary protein, serum total cholesterol, triglyceride, total protein, albumin, high-density lipoprotein, low-density lipoprotein, creatinine, blood urea nitrogen levels and coagulation changes were detected at 12 weeks. Meanwhile, histopathological changes of renal tissues were observed under light microscope; survival and distribution of PKH26-labeled ADMSCs were observed by fluorescence microscopy; and expression of Hpa gene in renal tissue was detected by RT-PCR.
RESULTS AND CONCLUSION: Compared with the model group, the 24-hour urinary protein, serum total cholesterol, triglyceride, low-density lipoprotein, creatinine, and blood urea nitrogen levels were significantly lower, while the serum total protein, albumin and high-density lipoprotein levels were significantly higher in the three treatment groups (P < 0.05). These indicators showed significant differences between the combined group and ADMSCs and cordyceps polysaccharide groups (P < 0.05). Both ADMSCs transplantation and cordyceps polysaccharide significantly relieved the hypercoagulable state of rats with nephrotic syndrome, and their combined effects were stronger (P < 0.05). After treatment, the pathological improvement in the kidney tissues was found in the three treatment groups; moreover, it was better in the combined treatment group than the ADMSCs and cordyceps polysaccharide groups. Better improvement in the number of PKH26-labeled ADMSCs and the expression of Hpa mRNA was observed in the combined treatment group compared with the ADMSCs and cordyceps polysaccharide groups. In conclusion, the combination of ADMSCs transplantation and cordyceps polysaccharide can improve kidney function and hypercoagulable state in rats with nephrotic syndrome, reducing pathological damage to the kidney tissue.

 

 

Key words: Mesenchymal Stem Cells, Stem Cell Transplantation, Nephrosis, Lipoid, Tissue Engineering

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