中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (10): 1528-1532.doi: 10.3969/j.issn.2095-4344.2015.10.010

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

静脉及心肌注射骨髓间充质基质细胞未能改善慢性心肌梗死大鼠的心脏功能

王 炜1,柳德斌1,冯 英2,张 浩3,王石雄1,高秉仁1,张 菁2,王玮璠1   

  1. 1兰州大学第二医院心脏外一科,甘肃省兰州市 730030;2兰州大学第二医院CICU,甘肃省兰州市 730030;3中国医学科学院阜外心血管病医院,卫生部心血管疾病再生医学重点实验室,北京市 100037
  • 出版日期:2015-03-05 发布日期:2015-03-05
  • 通讯作者: 王炜,博士,主治医师,兰州大学第二医院心脏外一科,甘肃省兰州市 730030
  • 作者简介:王炜,男,1981年生,河北省沙河县人,汉族,2010年兰州大学毕业,博士,主治医师,主要从事心外科基础与临床研究。
  • 基金资助:

    中央高校基本科研业务费专项资金自由探索-小额探索项目(lzujbky-2013-217)

Intravenous and intramyocardial administration of bone marrow mesenchymal stromal cells cannot improve heart function in a rat model of chronic myocardial infarction

Wang Wei1, Liu De-bin1, Feng Ying2, Zhang Hao3, Wang Shi-xiong1, Gao Bing-ren1, Zhang Jing2,Wang Wei-fan1   

  1. 1First Department of Cardiac Surgery, Second Hospital of Lanzhou University, Lanzhou 730030, Gansu Province, China; 2Department of CICU, Second Hospital of Lanzhou University, Lanzhou 730030, Gansu Province, China; 3Department of Surgery and Research Center for Cardiac Regenerative Medicine, Cardiovascular Institute and Fu Wai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
  • Online:2015-03-05 Published:2015-03-05
  • Contact: Wang Wei, First Department of Cardiac Surgery, Second Hospital of Lanzhou University, Lanzhou 730030, Gansu Province, China
  • About author:Wang Wei, M.D., Attending physician, First Department of Cardiac Surgery, Second Hospital of Lanzhou University, Lanzhou 730030, Gansu Province, China
  • Supported by:

    the Fundamental Research Funds for the Central Universities, No. lzujbky-2013-217

摘要:

背景:有多项研究证明,经静脉或经心肌表面注射移植间充质基质细胞促进了急性心肌梗死后心功能的改善。然而,目前尚缺乏有关经静脉联合经心肌注射移植间充质基质细胞对慢性心肌梗死心脏功能影响的研究。

 

目的:探讨静脉联合心肌注射骨髓间充质基质细胞对慢性心肌梗死模型大鼠心脏功能的影响及其机制。

 

方法:体外培养扩增Lewis大鼠的骨髓间充质基质细胞。将3×106 BrdU标记过的骨髓间充质基质细胞分别经股静脉和经心肌表面注射移植于慢性心肌梗死模型大鼠,对照组注射等量PBS。4周后检测两组大鼠心功能的变化,并对大鼠心脏组织行免疫组化染色,观察细胞分化情况及毛细血管数量。

 

结果与结论:骨髓间充质基质细胞移植4周后,细胞移植组与对照组心功能无明显差别,免疫组化染色提示存留于心肌组织内的移植细胞未分化为心肌细胞,心梗瘢痕区血管密度在细胞移植组和对照组间没有明显差别。结果表明经静脉联合经心肌注射骨髓间充质基质细胞未能改善慢性心肌梗死模型大鼠的心脏功能。

 

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, 移植, 骨髓间充质基质细胞, 大鼠, 慢性心肌梗死, 心脏功能

Abstract:

BACKGROUND: It has been demonstrated to be effective for the improvement of heart function after acute myocardial infarction with intravenous or intramyocardial administration of bone marrow mesenchymal stromal cells. However, little is known regarding the effect of the combination of intravenous and intramyocardial administration of mesenchymal stromal cells on the heart function of a chronic myocardial infarction model.

 
OBJECTIVE: To study the effect of intravenous and intramyocardial administration of bone marrow mesenchymal stromal cells on the heart function of a rat chronic myocardial infarction model and the relevant mechanism.
METHODS: Bone marrow mesenchymal stromal cells isolated from Lewis rats were expanded ex vivo. BrdU-labeled bone marrow mesenchymal stromal cells (3×106) were administered via the femoral vein and the myocardial surface respectively into rat models of chronic myocardial infarction in cell transplantation group. The equal volume of PBS was injected into the same place in control group. Four weeks after injection, echocardiography was performed to evaluate the heart function, and then the heart tissues were harvested for immunohistochemistry examination. The total blood vessel density in the scar area was evaluated.
RESULTS AND CONCLUSION: At 4 weeks after cell implantation, the left ventricular function was not improved in the two groups. The immunohistochemistry staining showed that (1) the mesenchymal stromal cells in the myocardium did not differentiate to myocardial cells; (2) there was no significant difference in the total blood vessel density in the scar area between the cell transplantation and control groups. Taken together, the combined intravenous and intramyocardial administration of bone marrow mesenchymal stromal cells cannot improve heart function in a rat chronic myocardial infarction model.

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: Bone Marrow, Mesenchymal Stem Cell Transplantation, Myocardial Infarction, Heart Function Tests

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