面向空间的,时间顺序的光滑肌肉细胞-内皮原生细胞双层细胞表新血管化缺血性心肌
Yasuhiro Shudo1, Jeffrey E Cohen, John W Macarthur
1Division of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania School of Medicine, Philadelphia, PA (Y.S., J.E.C., J.W.M., P.A., P.F.H., E.C.Y., A.S.F., A.T., J.P., Y.J.W.); and Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan (S.M., Y.S.).
Circulation
|September 14, 2013
概括
这项研究表明,结合内皮原生细胞 (EPC) 和光滑肌细胞 (SMC) 的细胞片有效促进血管形成,并改善心脏功能,在患有缺血性心肌病的老鼠模型中.
科学领域:
- 再生医学是一种再生医学.
- 心血管研究研究心血管研究
- 生物技术是生物技术.
背景情况:
- 内皮原生细胞 (EPC) 具有血管生成的治疗潜力,但可能缺乏成熟血管系统发育的能力.
- 缺乏支持细胞,如细胞周细胞,可能会限制简单的EPC注射用于血管再生.
- 这项研究探讨了一种新的方法,使用共同培养的EPC和光滑肌细胞 (SMC) 来增强血管生成能力.
研究的目的:
- 研究空间排列的EPC-SMC双层细胞表在创建超治疗性血管生成结构中的有效性.
- 模仿EPC和SMC之间的原生相互作用,以改善血管化.
- 为了评估在缺血性心肌病的动物模型中的治疗潜力.
主要方法:
- 从Wistar大鼠中分离出初级EPC和SMC.
- 使用专门的细胞培养皿创建了一个SMC-EPC双层细胞表.
- 通过冠状动脉绑定建立了动物缺血性心肌病模型,随后进行细胞叶移植,细胞注射或不治疗.
主要成果:
- 同培养的EPC和SMC在体外释放出显著水平的细胞因子.
- 细胞叶移植导致毛细血管密度增加,并在缺血边界区域改善了血液 perfusion.
- 细胞跟踪揭示了移植细胞的直接迁移和分化到心肌内的功能性血管元素,增强心室功能.
结论:
- 空间排列的EPC-SMC双层细胞板技术有效地促进了EPC和SMC之间的自然相互作用.
- 这种方法有助于创建结构成熟且功能完善的微血管.
- 细胞板技术在动物模型中显著改善了心肌功能缺血性心肌病.
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