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一项对艾滋病毒控制者艾滋病毒疾病进展的全基因组关联研究

Luis Miguel Real^1,2,3, María E Sáez⁴, Anais Corma-Gómez^1,3

¹Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario Virgen de Valme, Instituto de Biomedicina de Sevilla, IBIS, Sevilla, Spain.

|July 17, 2023

概括

以前与艾滋病毒控制相关的遗传因素也与HIV控制者的CD4+T细胞计数保持有关. 这些发现表明,自发性艾滋病毒控制和免疫稳定性的共同遗传基础.

科学领域:

免疫学免疫学免疫学
遗传学是一个遗传学.
病毒学病毒学

背景情况:

一些自然控制艾滋病毒的人 (艾滋病毒控制者) 仍然可以经历免疫系统衰退,其特征是CD4+T细胞数量下降.
识别这种免疫进展的遗传基础对于了解长期艾滋病毒管理至关重要.

研究的目的:

在HIV控制者中调查与CD4+T细胞损失相关的遗传因素.
为了确定特定的遗传变异是否会影响这个队列中免疫学进展的风险.

主要方法:

全基因组关联研究 (GWAS) 和对来自两个队列的561名HIV控制者的元分析.
分析的重点是确定与CD4+T细胞衰退相关的单核酸多态 (SNPs).
检查与自然艾滋病毒控制相关的先前识别的SNP.

主要成果:

在初级GWAS或元分析中,没有新的SNP或基因与长期非进展性表型显著相关.
以前与自然艾滋病毒控制相关的SNP,特别是靠近HLA-B,MICA和PSORS1C1位点的SNP,显示了与维持CD4+T细胞计数的名义关联.
这些相关的SNP (例如,HLA-B附近的rs2395029,rs59440261) 表明自发性HIV控制和免疫稳定之间存在潜在的遗传重叠.

结论:

与长期不经历免疫学进展的HIV控制者相关的遗传因素似乎是已知与一般HIV控制者表型相关的遗传因素.
这表明,支持自然HIV控制的基因架构也可能在随着时间的推移中起到保护免疫功能的作用.

关键词:

生物科学生物科学卫生科学卫生科学免疫学免疫学免疫学医学医学医学医学医学自然科学自然科学

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