中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (6): 900-905.doi: 10.3969/j.issn.2095-4344.2014.06.013

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

脂肪间充质干细胞移植对心肌梗死后炎症反应及心室重构的影响

樊 艳1,王建军2,魏 峰1,樊晓海3,马爱群1   

  1. 1西安交通大学医学院第一附属医院心血管内科,陕西省西安市 710061;2兰州市第一人民医院骨科,甘肃省兰州市 730050;3解放军兰州军区兰州总医院全军创伤骨科中心,甘肃省兰州市 730050
  • 修回日期:2013-12-12 出版日期:2014-02-05 发布日期:2014-02-05
  • 通讯作者: 马爱群,博士,教授,西安交通大学医学院第一附属医院心血管内科,陕西省西安市 710061
  • 作者简介:樊艳,女,1981年生,陕西省乾县人,汉族,西安交通大学在读博士,主治医师,主要从事冠心病、心力衰竭的基础与临床研究。
  • 基金资助:

    国家自然科学基金项目(81000063)

Effect of adipose-derived mesenchymal stem cell transplantation on inflammatory response and ventricular remodeling after myocardial infarction

Fan Yan1, Wang Jian-jun2, Wei Feng1, Fan Xiao-hai3, Ma Ai-qun1   

  1. 1Department of Cardiovascular Medicine, the First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China; 2Department of Orthopedics, the First People’s Hospital of Lanzhou, Lanzhou 730050, Gansu Province, China; 3Department of Orthopedics, Lanzhou General Hospital of Lanzhou Military Command, Lanzhou 730050, Gansu Province, China
  • Revised:2013-12-12 Online:2014-02-05 Published:2014-02-05
  • Contact: Ma Ai-qun, M.D., Professor, Department of Cardiovascular Medicine, the First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
  • About author:Fan Yan, Studying for doctorate, Attending physician, Department of Cardiovascular Medicine, the First Affiliated Hospital of Medical College of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
  • Supported by:

     the National Natural Science Foundation of China, No. 81000063

摘要:

背景:脂肪间充质干细胞的免疫调节作用是否能够用于心肌梗死的治疗,以及发挥这一作用的最佳时机如何,目前研究较少。

目的:观察移植的脂肪间充质干细胞对心肌梗死后炎症反应及心室重构的影响,探讨脂肪间充质干细胞治疗心肌梗死的可能机制。
方法:酶消化法分离培养大鼠脂肪间充质干细胞,40只大鼠结扎左冠状动脉前降支建立心肌梗死模型后随机数字表法均分为假手术组、对照组(注射HG-DMEM)、心梗后3 h,7 d移植脂肪间充质干细胞组。移植后      14 d采用ELISA法检测血浆肿瘤坏死因子α和白细胞介素10的水平,移植后28 d行超声心动图检测左室舒张末期内径、收缩末期内径、射血分数和短轴缩短率。

结果与结论:细胞移植后第14天,与对照组相比,3 h移植组和7 d移植组血浆促炎细胞因子肿瘤坏死因子α的水平明显降低(P < 0.01),抗炎细胞因子白细胞介素10的水平明显升高(P < 0.01);细胞移植后第28天,与对照组比较,脂肪间充质干细胞移植组左室舒张末期内径和收缩末期内径明显减小,心脏缩小,射血分数和短轴缩短率明显提高,心功能改善,且3 h移植组较7 d移植组作用更趋明显。说明心肌梗死早期进行脂肪间充质干细胞移植,能够显著抑制梗死后炎症反应,调节炎症细胞因子网络平衡,延缓心室重构,改善心脏功能。


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, 脂肪干细胞, 脂肪, 间充质干细胞, 心肌梗死, 免疫调节, 炎症, 心室重构, 国家自然科学基金

Abstract:

BACKGROUND: Whether adipose-derived mesenchymal stem cells are able to exert immunomodulatory effects in the treatment of myocardial infarction, as well as the best time, is less reported.

OBJECTIVE: To observe the effect of adipose-derived mesenchymal stem cells on inflammatory reaction and ventricular remodeling after myocardial infarction, and to explore the possible mechanisms of adipose-derived mesenchymal stem cells for the treatment of myocardial infarction.
METHODS: Enzyme digestion method was employed to isolate and culture rat adipose-derived mesenchymal stem cells. By ligation of the left anterior descending coronary artery, we established animal models of myocardial infarction in 40 rats. The rats were randomly divided into four groups: sham group, control group (injected high-glucose Dulbecco’s modified Eagle’s medium), 3-hour transplantation group (transplanted adipose-derived mesenchymal stem cells after 3 hours of myocardial infarction), 7-day transplantation group (transplanted adipose-derived mesenchymal stem cells after 7 days of myocardial infarction). After 14 days of operation, the levels of tumor necrosis factor-α and interleukin-10 in the plasma were detected by enzyme linked immunosorbent assay. After 28 days of operation, the left ventricular end diastolic diameter, left ventricular end systolic diameter, left ventricular ejection fraction and left ventricular fractional shortening were measured by echocardiography.

RESULTS AND CONCLUSION: Compared with the control group, in the 3-hour transplantation group and 7-day transplantation group, the levels of tumor necrosis factor-α were significantly lower (P < 0.01), and the levels of interleukin-10 were significantly higher (P < 0.01) at postoperative 14 days; the left ventricular end diastolic diameter and left ventricular end systolic diameter in the two transplantation groups were also significantly smaller (P < 0.05), but left ventricular ejection fraction and left ventricular fractional shortening were significantly elevated (P < 0.05), which was more apparent in the 3-hour transplantation group than the 7-day transplantation group. Adipose-derived mesenchymal stem cells transplantation in acute phase of myocardial infarction can suppress the inflammatory response, regulate the cytokine network equilibrium, and thus delay ventricular remodeling and improve cardiac function.


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, mesenchymal stem cells, abdominal fat, myocardial infarction, ventricular remodeling, cytokines, cell transplantation

中图分类号: