在缺血性阿波利波蛋白E-Knockout小鼠中移植骨髓衍生的单核细胞可以加速动脉样硬化,而不会改变斑块组成
Jean-Sébastien Silvestre1, Andrea Gojova, Valérie Brun
1Institut National de la Santé et de la Recherche Médicale U541, Hôpital Lariboisière, 41, Bd de la Chapelle, 75010 Paris, France.
Circulation
|December 6, 2003
概括
骨髓衍生单核细胞 (BM-MNCs) 促进新血管化,但在缺血性疾病中可能加速动脉样硬化进展. 需要进一步的研究来评估心血管疾病患者的长期安全性和疗效.
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
- 细胞疗法细胞疗法
背景情况:
- 骨髓衍生单核细胞 (BM-MNCs) 正在研究它们在缺血后增强新血管化的潜力.
- 在动脉样硬化的背景下,BM-MNC治疗的安全性尚未完全阐明.
研究的目的:
- 评估BM-MNC移植在缺血环境下对动脉样硬化进展的安全性和影响.
- 评估BM-MNCs对apolipoprotein E-knockout (apoE-KO) 小鼠新血管化和动脉样硬化斑块发育的影响.
主要方法:
- 阿波利波蛋白E-Knockout (apoE-KO) 的小鼠遭受了后肢缺血,并接受了盐水或BM-MNCs的治疗.
- 动脉样硬化斑块的大小在大动脉鼻中被评估,在缺血后肢中评估了新血管化.
- 测试了不同剂量的BM-MNC和自身的BM-MNC.
主要成果:
- BM-MNC移植显著改善了缺血后肢的新血管化,通过增加血管造影得分,毛细血管密度和 perfusion.
- 然而,在后肢缺血症的apoE-KO小鼠中进行BM-MNC移植,与对照组相比,动脉样硬化病变大小显著增加.
- 没有观察到斑块组成或总胆固醇水平的显著变化.
- 自主BM-MNCs没有显示出益血管性或益动脉性影响.
结论:
- BM-MNC疗法可能会在缺血性疾病中促进动脉样硬化斑块的进展.
- 短期的BM-MNC治疗不太可能影响动脉样硬化斑块的稳定性.
- 需要进一步的研究,以了解BM-MNC治疗在动脉样硬化和缺血症患者的长期影响.
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