中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (1): 110-114.doi: 10.3969/j.issn.2095-4344.2017.01.020

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

肾组织干细胞治疗急性肾衰竭的可行性

胡跃世,李  鹏,曹志华,刘  磊,王  阳   

  1. 南阳市中心医院泌尿外科,河南省南阳市  473000
  • 出版日期:2017-01-08 发布日期:2017-03-15
  • 作者简介:胡跃世,男,1978年生,河南省南阳市人,汉族,2008年新乡医学院毕业,硕士,主治医师,主要从事微创泌尿外科方面的研究。

Feasibility of renal tissue stem cell therapy for acute renal failure

Hu Yue-shi, Li Peng, Cao Zhi-hua, Liu Lei, Wang Yang   

  1. Department of Urinary Surgery, Nanyang City Center Hospital, Nanyang 473000, Henan Province, China
  • Online:2017-01-08 Published:2017-03-15
  • About author:Hu Yue-shi, Master, Attending physician, Department of Urinary Surgery, Nanyang City Center Hospital, Nanyang 473000, Henan Province, China

摘要:

文章快速阅读:

文题释义:
肾小管上皮细胞:
是兼有免疫调节作用且生物学功能十分活跃的细胞,是肾小管间质的主要细胞。当受到缺氧、中毒、细胞或炎性反应因子、血浆蛋白或葡萄糖等损伤因素作用后,肾小管上皮细胞活化、增生,小管扩张,管型形成,最终导致小管萎缩、凋亡和(或)纤维化。肾小管上皮细胞损伤不仅是引起急性肾衰竭的直接原因,而且由小管萎缩引起的肾间质纤维化还是导致终末期肾病的主要原因和共同病理过程。
上皮-间充质细胞转化:肾间质肌成纤维细胞主要来源为骨髓干细胞、肾小管上皮细胞转化和肾间质局部成纤维细胞活化。肾小管上皮细胞失去自身的细胞特性而获得肌成纤维的特性,称为上皮-间充质细胞转化。研究表明,上皮-间充质细胞转化在肾间质纤维化的发生和发展中起重要作用,而抑制或逆转上皮-间充质细胞转化的发生和发展,已成为控制肾间质纤维化的重要途径之一。

 

摘要
背景:
研究表明,肾组织干细胞主要存在于肾乳头部位,其具有类似于间充质干细胞的特性,目前尚不能肯定其是否参与了肾小管上皮细胞损伤的修复。
目的:探讨肾组织干细胞治疗急性肾衰竭的效果及可行性。
方法:纳入40只SD大鼠,10只用于肾组织干细胞培养,其余30只随机分为3组,实验组和对照组制备急性肾衰竭动物模型,正常组不做任何处理。模型制备后6 h,实验组尾静脉注入肾组织干细胞,对照组注入相同剂量的生理盐水,正常组不做任何处理。移植后10 d检测肾功能,获取肾组织标本进行组织学观察。
结果与结论:①对照组的尿素氮、肌酐水平均显著高于正常组和实验组(P < 0.05);实验组与正常组之间差异无显著性意义(P > 0.05);②正常组皮质和外髓质小管未出现异常改变,无炎性浸润;对照组外髓质小管萎缩,炎症细胞浸润,上皮细胞肿胀;实验组有轻微炎症细胞浸润和细胞肿胀等病变,但较对照组明显较轻;③结果表明,肾组织干细胞移植能有效改善急性肾衰竭大鼠的肾功能,促进上皮细胞再生,达到良好的组织修复效果。

 

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:
0000-0002-1668-828X(胡跃世)

关键词: 干细胞, 移植, 肾组织干细胞, 肾小管, 肾小管损伤, 上皮细胞, 急性肾衰竭

Abstract:

BACKGROUND: Studies have shown that renal tissue stem cells mainly exist in the renal papillae, holding similar characteristics to mesenchymal stem cells, yet it is unknown whether they are involved in the renal repair of tubular epithelial injury.
OBJECTIVE: To explore the effect and feasibility of renal tissue stem cells in the repair of acute renal failure.
METHODS: Renal tissue stem cells were isolated and culture from the renal tissue of 10 Sprague-Dawley rats. Another 30 Sprague-Dawley rats were randomly assigned into experimental group, model group or normal control group. An animal model of acute renal failure was made in the experimental and model groups. Six hours after modeling, experimental rats were respectively given tail vein injection of renal tissue stem cells in the experimental group, given the same volume of normal saline in the model group, and given no treatment in the normal control group. Ten days after transplantation, the renal function was detected, and renal tissue samples were taken and observed histologically.
RESULTS AND CONCLUSION: After transplantation, levels of urea nitrogen and creatinine were improved significantly in the experimental group (P < 0.05), which were similar to those in the normal control group (P > 0.05). No abnormal changes and no inflammatory infiltration in the cortex and outer medullary tubules were found in the normal control group, while in the experimental group, inflammatory cell infiltration and epithelial cell swelling were visible but milder than the model group. To conclude, our experimental findings show that the renal tissue stem cells get ideal effects on the renal function of acute renal failure rats by promoting epithelial cell regeneration.

 

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

Key words: Stem Cells, Kidney Tubular Necrosis, Acute, Acute Kidney Injury, Tissue Engineering

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