中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (49): 8488-8497.doi: 10.3969/j.issn.2095-4344.2013.49.005

• 骨髓干细胞 bone marrow stem cells • 上一篇    下一篇

动员自身骨髓干细胞与缺血再灌注肾损伤细胞的凋亡与增殖

毕凌云1,杨达胜1,赵德安1,梁  斌1,张瑞霞1,白海涛2   

  1. 1新乡医学院第一附属医院儿科,河南省卫辉市  453100
    2厦门大学附属第一医院儿科,福建省厦门市  361003
  • 修回日期:2013-09-20 出版日期:2013-12-03 发布日期:2013-12-03
  • 通讯作者: 杨达胜,教授,主任医师,副院长,新乡医学院第一附属医院,河南省卫辉市 453100 yds0811@126.com
  • 作者简介:毕凌云☆,女,1978年生,汉族,河南省新乡市人,博士,讲师,主治医师,主要从事小儿肾脏病及儿童血液净化方面的研究。woailtt2006@163.com
  • 基金资助:

    2006年河南省医学科技公关项目-89*;2009年新乡医学院第七批省级重点学科开放课题(ZD200909)*

Mobilization of autologous bone marrow stem cells is involved in cell apoptosis and proliferation following renal ischemia-reperfusion injuries

Bi Ling-yun1, Yang Da-sheng1, Zhao De-an1, Liang Bin1, Zhang Rui-xia1, Bai Hai-tao2   

  1. 1Department of Pediatrics, the First Affiliated Hospital of Xinxiang Medical University, Weihui  453100, Henan Province, China
    2Department of Pediatrics, the First Affiliated Hospital of Xiamen University, Xiamen  361003, Fujian Province, China
  • Revised:2013-09-20 Online:2013-12-03 Published:2013-12-03
  • Contact: Yang Da-sheng, Professor, Chief physician, Department of Pediatrics, the First Affiliated Hospital of Xinxiang Medical University, Weihui 453100, Henan Province, China yds0811@126.com
  • About author:Bi Ling-yun☆, M.D., Lecturer, Attending physician, Department of Pediatrics, the First Affiliated Hospital of Xinxiang Medical University, Weihui 453100, Henan Province, China woailtt2006@163.com
  • Supported by:

     the Medical Technology Tackle Key Project of Henan Province in 2006, No. 89*; Open Topics of Provincial Key Disciplines in Xinxiang Medical College in 2009 (7th Batch), No. ZD200909*

摘要:

背景:骨髓干细胞具有多项分化潜能,可分化为肾组织固有细胞、修复损伤肾组织。
目的:探讨粒细胞集落刺激因子联合干细胞因子动员自身骨髓干细胞对大鼠缺血再灌注肾损伤细胞凋亡与增殖的影响。
方法:160只大鼠尿筛阴性后随机均分为正常对照组、模型组、细胞因子治疗组、治疗对照组。模型组和细胞因子治疗组建立大鼠单侧肾脏缺血再灌注损伤模型;细胞因子治疗组和治疗对照组于造模后24 h开始皮下注射粒细胞集落刺激因子(50 μg/kg,1次/d)和干细胞因子(200 μg/kg,1次/d),连续5 d;模型组不给药,正常对照组不予干预。TUNEL法检测细胞凋亡;免疫组织化学法(SABC法)检测肾组织CD34+细胞、Caspase-3、Bcl-2、细胞增殖核抗原表达情况。
结果与结论:细胞因子治疗组肾组织内CD34+细胞较正常对照组、模型组明显增多(P < 0.05)。不同时间点模型组和细胞因子治疗组凋亡指数、Capase-3表达量均高于正常对照组和治疗对照组(P < 0.05),且模型组均显著高于细胞因子治疗组(P < 0.05)。不同时间点模型组和细胞因子治疗组Bcl-2阳性表达细胞均高于正常对照组和治疗对照组(P < 0.05)。细胞因子治疗组显著高于模型组,然后随着时间推移Bcl-2表达量明显减少(P < 0.05)。模型组和细胞因子治疗组均可见细胞增殖核抗原阳性表达细胞;模型组于第24天增殖指数达峰值,后逐渐下降。细胞因子治疗组在第10天即达到高峰,持续至第17天,然后逐渐下降。说明粒细胞集落刺激因子联合干细胞因子动员自身骨髓干细胞可以促进肾缺血再灌注损伤后肾小管上皮细胞的增殖和减少细胞凋亡,从而有利于肾小管损伤的恢复。


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


全文链接:

关键词: 干细胞, 骨髓干细胞, 肾损伤, 干细胞因子, 粒细胞集落刺激因子, 肾缺血再灌注损伤, 细胞凋亡, 省级基金, 干细胞图片文章

Abstract:

BACKGROUND: Bone marrow stem cells are defined by their multi-potential ability, and can be differentiated into intrinsic cells in the kidney.
OBJECTIVE: To study the effects of mobilizing autologous bone marrow stem cells by granulocyte colony-stimulating factor plus stem cell factor on cell apoptosis and proliferation of rats with renal ischemia-reperfusion injury.  
METHODS: Totally 160 male Sprague-Dawley rats were randomly divided into four groups: control group, model group, cytokine treatment group, cytokine control group. Rat models of unilateral renal ischemia-reperfusion injury were established in the model and cytokine treatment groups. Rats in the cytokine treatment group and cytokine control group received subcutaneous injection of granulocyte colony-stimulating factor (50 μg/kg) and stem cell factor (200 μg/kg), once a day, for 5 continuous days. Rats in the model and control groups had no treatment. Apoptotic cells were detected by terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling method, and the expression of CD34-positive cells, Caspase-3, Bcl-2, proliferating cell nuclear antigen in the kidney were measured using immunohistochemistry staining.
RESULTS AND CONCLUSION: The number of CD34-positive cells in renal tissue of the cytokine treatment group was significantly higher than that of the control group and model group (P < 0.05). The apoptotic index and expression of Capase-3 in the model group and cytokine treatment group were higher than those in the control group and cytokine control group (P < 0.05). The apoptotic index and expression of Capase-3 in the cytokine treatment group were lower than that in the model group (P < 0.05). The expression of Bcl-2 in the model group and cytokine treatment group was higher than that in the control group and cytokine control group (P < 0.05). The expression of Bcl-2 in the cytokine treatment group was higher than that in the model group (P < 0.05); however, as time went on, Bcl-2 expression was obviously decreased. Proliferating cell nuclear antigen expressed both in the model group and in the cytokine treatment group. Additionally, the proliferative index reached peak at 24 days in the model group, and then decreased gradually; while in the cytokine treatment group, it reached the peak at 10 days, maintained a high level until the 17th day, and then decreased gradually. Mobilization of autologous bone marrow stem cells by combination of granulocyte colony-stimulating factor and stem cell factor can increase proliferation and decrease apoptosis of renal tubular epithelial cells after renal ischemia-reperfusion injury, and thus, promote the recovery from renal tubular injury.


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


全文链接:

Key words: stem cells, kidney, ischemia-reperfusion injury, reperfusion injury, stem cell factor, granulocyte colony-stimulating factor

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