中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (50): 7481-7486.doi: 10.3969/j.issn.2095-4344.2016.50.005

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

冠心病与非冠心病患者骨髓间充质干细胞基本生物学特性比较

侯永兰   

  1. 新乡市中心医院心血管内一科,河南省新乡市  453000
  • 修回日期:2016-09-15 出版日期:2016-12-02 发布日期:2016-12-02
  • 作者简介:侯永兰,女,1980年生,汉族,2007年重庆医科大学毕业,硕士,主治医师,主要从事高血压、冠心病、心力衰竭的药物治疗以及心律失常的介入治疗等。

Biological characteristics of bone marrow mesenchymal stem cells in patients with or whithout coronary heart disease: a comparative study

Hou Yong-lan   

  1. Department of Cardiology, Xinxiang Central Hospital, Xinxiang 453000, Henan Province, China
  • Revised:2016-09-15 Online:2016-12-02 Published:2016-12-02
  • About author:Hou Yong-lan, Master, Attending physician, Department of Cardiology, Xinxiang Central Hospital, Xinxiang 453000, Henan Province, China

摘要:

文章快速阅读:

文题释义:
黏附分子:
是由细胞产生,存在于细胞表面,介导细胞与细胞间或细胞与基质间相互接触和结合的一类分子。CD54,CD106同属于黏附分子免疫球蛋白家族,参与了人体生理病理多个环节,是目前研究的热点。
间充质干细胞的归巢方式:外源性间充质干细胞在生物体中具有多组织归巢的能力,其归巢的方式类似于白细胞的主动趋化、黏附及定植,该方法为主动归巢,主要向移植体中有炎症及损失的部位趋化、定植。另外还有可能被动的通过微循环中的毛细血管、微动脉及后静脉定植于组织,这主要与干细胞的大小相关,较大的间充质干细胞及相对较小的血管管径,使得细胞流动速度减慢,细胞与血管的相互作用而导致细胞的被动定植。

 

摘要
背景:
不同类型心脏病患者机体的差异是否会影响干细胞的特征和表现尚不清楚。
目的:探讨不同类型心脏病患者骨髓间充质干细胞基本生物学特性。
方法:纳入27例冠心病患者与20例非冠心病患者,收集胸骨骨髓液采用密度梯度离心法进行骨髓间充质干细胞体外培养,观察两组细胞的形态,流式细胞术鉴定CD13、CD34、CD44、CD45、CD54、CD106阳性表达率,MTT 法检测细胞生长增殖情况,描绘两组细胞的生长曲线。
结果与结论:①两组患者骨髓间充质干细胞均呈现出长梭形纤维状,形态无明显差异;②两组患者骨髓间充质干细胞CD34、CD455阳性表达率均小于3.0%,CD13、CD44 阳性率均大于95.0%。非冠心病组CD54、CD106阳性表达率显著低于冠心病组(P < 0.05);③两组细胞的体外生长曲线基本一致,非冠心病组的增长速度略快,但与冠心病组比较差异无显著性意义;④结果表明,不同类型心脏病患者的骨髓间充质干细胞形态和增殖情况均无明显差异,但是与功能相关的某些蛋白表达存在一定的差异。

 

 

关键词: 干细胞, 骨髓干细胞, 骨髓间充质干细胞, 心脏病, 冠心病, 细胞增殖, 细胞表面标记

Abstract:

BACKGROUND: It is unclear whether the body differences in patients with different types of heart diseases affect the characteristics and performance of stem cells.
OBJECTIVE: To explore the biological characteristics of bone marrow mesenchymal stem cells from patients with different types of heart diseases.
METHODS: Bone marrow mesenchymal stem cells were extracted using density gradient centrifugation from the bone marrow of 27 patients with coronary heart diseases and 20 patients with other heart diseases. Cell morphology was observed in the two groups. CD13, CD34, CD45, CD54, CD106 and CD44 positive expression was detected by flow cytometry. Cell proliferation was detected by MTT method, and the in vitro cell growth curves of the two groups were described.
RESULTS AND CONCLUSION: The bone marrow mesenchymal stem cells of the two groups showed a long spindle shape, and there was no significant difference in the cell morphology between the two groups. In all the patients, the positive rates of CD34 and CD455 were less than 3.0%, while the positive rates of CD13 and CD44 were higher than 95.0%. However, the positive rates of CD54 and CD106 were higher in patients with coronary heart disease as compared with those with other heart diseases (P < 0.05). The in vitro growth curves of cells in the two groups were basically consistent, and the cell proliferation was only a little higher in the patients with other heart diseases compared with those with coronary heart disease. Experimental results show that different types of heart diseases in patients have no influence on morphology and proliferation of bone marrow mesenchymal stem cells, but some function-related proteins may exhibit certain difference in their expressions.

 

 

Key words: Bone Marrow, Mesenchymal Stem Cells, Coronary Disease, Tissue Engineering

中图分类号: