缺乏C3对动脉样硬化的影响
Chiara Buono1, Carolyn E Come, Joseph L Witztum
1Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass 02115, USA.
Circulation
|June 26, 2002
概括
补充成分3 (C3) 缺乏会加剧动脉样硬化. 缺乏C3的小鼠表现出较大的动脉样硬化病变,巨细胞增加,光滑肌细胞和原减少,表明病变成熟受损.
科学领域:
- 免疫学 免疫学 免疫学
- 心血管科学 心血管科学
- 动脉样硬化研究 动脉样硬化研究
背景情况:
- 补体激活在动脉样硬化中的作用尚不清楚.
- 研究补充剂对心血管疾病进展的影响至关重要.
研究的目的:
- 确定C3缺乏对动脉样硬化程度和损伤特征的影响.
- 阐明补充系统完整性与动脉样硬化斑块发育之间的关系.
主要方法:
- 在低密度脂蛋白受体 (ldlr) /C3缺乏小鼠和高胆固醇饮食对照中的大动脉动脉样硬化分析.
- 在动脉样硬化斑块中评估病变大小,脂质沉积,巨细胞含量,光滑肌细胞和原.
主要成果:
- 与对照组相比,C3缺乏的小鼠在主动脉中表现出明显更大的动脉样硬化病变.
- 缺乏C3的小鼠的病变显示了巨细胞透的增加和光滑肌肉细胞和原蛋白含量的减少.
- 血清脂蛋白和免疫球蛋白水平在两组之间是可比的,隔离了C3的影响.
结论:
- 完整的补体系统对于动脉样硬化病变的成熟至关重要,超过了最初的泡细胞阶段.
- 补充成分3在调节动脉样硬化斑块的发展和稳定性方面发挥着至关重要的作用.
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