缺少自然杀手细胞活性在患有异常扩张性心肌病的患者
Lancet (London, England)
|November 20, 1982
概括
大约一半扩张性心肌病患者的自然杀手 (NK) 细胞活性不足,这表明免疫功能障碍在这种心脏病中可能起作用. 这种NK细胞缺乏与HLA-A3组织类型有关.
科学领域:
- 免疫学 免疫学 免疫学
- 心脏病学 心脏病学
- 遗传学 遗传学 是一个
背景情况:
- 扩张性心肌病是一种原因不明的心脏病,怀疑病毒和免疫因素.
- 自然杀手 (NK) 细胞对于对抗病毒感染和瘤至关重要.
研究的目的:
- 为了研究诊断为扩大心肌病的患者的自然杀手 (NK) 细胞活性.
- 为了比较心肌病患者的NK细胞活性与健康个体以及其他形式的心力衰竭患者.
主要方法:
- 从16名扩张性心肌病患者,54名健康捐赠者和14名心力衰竭患者中收集了周围血液单核细胞.
- 测量了自然杀手 (NK) 细胞活性,使用淋巴细胞与细胞的比率 (L/T50) 来测量50%的细胞杀死.
- 分析了包括HLA-A3组织类型在内的临床和实验室变量,以确定与NK缺乏的关联.
主要成果:
- 在16名 (50%) 心肌病患者中,有8名NK细胞活性不足 (L/T50 ≥50).
- 与正常捐赠者 (p < 0.001) 和心力衰竭对照者 (p < 0.01) 相比,心肌病患者的NK细胞缺乏明显更常见.
- 观察到NK细胞缺乏与存在HLA-A3组织类型之间存在显著的关联.
结论:
- 自然杀手细胞 (NK) 缺乏是约50%扩张性心肌病患者中存在的独立标志物.
- 这些发现表明,免疫系统功能障碍,特别是NK细胞缺乏在扩张性心肌病变的发病过程中可能发挥作用.
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