中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (49): 8532-8538.doi: 10.3969/j.issn.2095-4344.2013.49.011

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

外源性硫化氢预处理骨髓间充质干细胞移植治疗大鼠心肌梗死

解杨婧1,王爱玲1,郭  增1,李从圣2,王春苗1,郝玉瑜1   

  1. 1安徽医科大学第一附属医院心血管内科,安徽省合肥市  230032
    2合肥市第一人民医院急诊科,安徽省合肥市  230061
  • 修回日期:2013-09-11 出版日期:2013-12-03 发布日期:2013-12-03
  • 通讯作者: 王爱玲,主任医师,教授,博士生导师,安徽医科大学第一附属医院心血管内科,安徽省合肥市 230032 wal@ah.edu.cn
  • 作者简介:解杨婧★,女,1987年生,安徽省合肥市人,汉族,安徽医科大学第一附属医院心血管内科在读硕士,主要从事干细胞与心血管疾病研究。 josiaxie@163.com
  • 基金资助:

    安徽省教育厅自然科学研究重点项目(KJ2008A156)*

Transplantation of bone marrow mesenchymal stem cells preconditioned with hydrogen sulfide in the treatment of rat myocardial infarction

Xie Yang-jing1, Wang Ai-ling1, Guo Zeng1, Li Cong-sheng2, Wang Chun-miao1, Hao Yu-yu1   

  1. 1Department of Cardiology, First Affiliated Hospital of Anhui Medical University, Hefei  230032, Anhui Province, China
    2Department of Emergency, First People’s Hospital of Hefei City, Hefei  230061, Anhui Province, China
  • Revised:2013-09-11 Online:2013-12-03 Published:2013-12-03
  • Contact: Wang Ai-ling, Chief physician, Professor, Doctoral supervisor, Department of Cardiology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, Anhui Province, China wal@ah.edu.cn
  • About author:Xie Yang-jing★, Studying for master’s degree, Department of Cardiology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, Anhui Province, China josiaxie@163.com
  • Supported by:

    the Natural Science Foundation of Anhui Educational Bureau, No. KJ2008A156*

摘要:

背景:骨髓间充质干细胞移植可促进心肌修复,治疗心肌梗死,但移植后细胞存活率低等原因制约了其应用与发展。
目的:探讨硫化氢预处理对骨髓间充质干细胞移植治疗心肌梗死效果的影响。
方法:从(100±20) g SD大鼠中分离培养骨髓间充质干细胞,第4代时按实验分组处理,移植前2 h给予DAPI标记。将50只体质量(200±20) g雄性SD大鼠分为心肌梗死组和假手术组,心肌梗死组结扎冠状动脉前降支建立心肌梗死模型,假手术组只穿线不结扎,每组10只。模型建立24 h后,分组在梗死心肌周围选择4个点,分别注射生理盐水、骨髓间充质干细胞、硫化氢预处理骨髓间充质干细胞及硫化氢。细胞移植4周后用超声心动图检测心功能指标,Masson染色测定梗死交界区胶原。
结果与结论:生理盐水组大鼠心肌纤维化严重,梗死区域无心肌组织再生;外源性硫化氢处理后的骨髓间充质干细胞移植组比单用硫化氢或者骨髓间充质干细胞组心肌纤维化程度轻,胶原组织中可见较多心肌细胞再生。硫化氢预处理骨髓间充质干细胞组左室射血分数、左室短轴缩短率显著高于硫化氢组及骨髓间充质干细胞组(P < 0.05)。提示硫化氢预处理骨髓间充质干细胞可提高移植后的细胞存活率,改善梗死后心功能,其作用优于单用硫化氢或者骨髓间充质干细胞。


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, 干细胞移植, 骨髓间充质干细胞, 心肌梗死, 硫化氢, 预处理, 超声心动图, 省级基金, 干细胞图片文章

Abstract:

BACKGROUND: Bone marrow mesenchymal stem cells (BMSCs) transplantation can promote cardiac repair after myocardial infarction, but it has been limited by the low cell survival rate.
OBJECTIVE: To study the effect of hydrogen sulfide (H2S) on the BMSCs transplantation for treatment of myocardial infarction.
METHODS: BMSCs were separated and cultivated form Sprague-Dawley rats weighing (100±20) g. The 4th generation cells were used for later experiment, and marked by DAPI at 2 hours before use. Fifty male Sprague-Dawley rats, weighing (200±20) g had been divided into five groups: Sham group (n=10) and four transplantation groups: BMSCs (n=10), H2S-BMSCs (n=10), H2S (n=10), normal saline (n=10). The myocardial infarction model of four groups was established except of sham group (only thread without ligation). The cardiac function was measured by echocardiogram at 4 weeks after cell transplantation. The collagen in the infarction area was tested by Masson staining.
RESULTS AND CONCLUSION: Severe myocardial fibrosis was found in the normal saline group, with no myocardial regeneration in the infarct area. H2S-BMSCs group had less collagen and more cardiac muscle tissue than BMSCs or H2S groups. Left ventricular ejection fraction and left ventricular fractional shortening of the H2S-BMSCs group were significantly higher than those of the BMSCs or H2S groups (P < 0.05). The cells survival rate and cardiac function of myocardial infarction rats can be promoted by H2S-preconditioned BMSCs transplantation, which is superior to BMSCs or H2S alone.


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, stem cell transplantation, myocardial ischemia, echocardiography, stress

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