在人体移植冠状动脉疾病中增加免疫反应性内甲素-1
S Ravalli1, M Szabolcs, A Albala
1Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA.
Circulation
|November 1, 1996
概括
在移植冠状动脉疾病 (TCAD) 中,内甲素-1 (ET-1) 显著增加,这表明其在移植动脉硬化中的作用. 这项研究调查了ET-1的研究.
科学领域:
- 心血管研究研究心血管研究
- 移植免疫学 移植免疫学
- 血管生物学 血管生物学
背景情况:
- 移植冠状动脉疾病 (TCAD) 的确切原因尚不清楚.
- 据信TCAD是由免疫和非免疫相互作用引起的.
- 恩多林-1 (ET-1) 是一种具有光滑肌肉细胞代性质的血管收缩剂,与动脉样硬化有关.
研究的目的:
- 调查Endothelin-1 (ET-1) 在移植冠状动脉疾病 (TCAD) 病原发生中的作用.
主要方法:
- 免疫组织化学被用来评估ET-1在人类冠状动脉中的免疫活性.
- 样本包括13条TCAD动脉和10条正常的冠状动脉.
- 使用半定量方法量化染色强度.
主要成果:
- 与正常动脉相比,TCAD动脉中观察到显著更高的ET-1免疫活性 (平均级别为1.8vs0.7).
- 在TCAD中,ET-1主要存在于肌底细胞,巨细胞和内皮细胞中.
- 在TCAD的富含脂质的病变和内脏新血管中存在ET-1.
结论:
- 在TCAD中增加ET-1免疫活性表明该在移植动脉样硬化中起着作用.
- 在移植后的状态下,上调的细胞因子和生长因子可能会导致ET-1的增加.
- ET-1是TCAD发展的潜在因素.
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