在汉族中,HLA等位基因的病原体适应以及与自身免疫性疾病的相关性
Shuai Liu1,2,3,1, Yanyan Li1,1, Tingrui Song1,1
1Key Laboratory of Epigenetic Regulation and Intervention, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
Genomics, proteomics & bioinformatics
|April 29, 2025
概括
人类白细胞抗原 (HLA) 基因显示病原体适应性,具有与多发性硬化症等疾病相关的特定等位基因. 这项研究探讨了HLA的演变及其与自身免疫疾病的联系.
科学领域:
- 免疫遗传学 免疫遗传学
- 人类进化人类进化
- 病原体适应 病原体适应
背景情况:
- 人类白细胞抗原 (HLA) 基因对于人类适应病原体至关重要.
- 研究病原体驱动的HLA进化及其与自身免疫性疾病的联系是具有挑战性的.
研究的目的:
- 分析汉族中国人群中的HLA基因适应.
- 探索HLA病原体适应和自身免疫性疾病之间的相关性.
主要方法:
- 在8278个个体中以3场分辨率对20多个HLA基因进行基因定型.
- 分析了对各种病原体的HLA结合亲和力.
- 检查了适应性选择的基因表达水平.
主要成果:
- 特定的HLA等位基因 (例如,HLA-DRB1*07:01,HLA-DQB1*06:01) 显示出强大的病原体适应性 (例如,对Corynebacterium diphtheriae,Bordetella pertussis).
- 在基因表达水平上,HLA-C*03:02表明了对诸如Mycobacterium结核病和冠状病毒等病原体的适应性选择.
- 确定了这些HLA等位基因与自身免疫性疾病,包括多发性硬化症 (MS) 之间的相关性.
结论:
- HLA基因表现出病原体特定的适应策略.
- 在HLA病原体适应和自身免疫性疾病之间存在同进化关系.
- 创建了一个HLA数据库,以促进人口层面的频率搜索.
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