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常见的基因变异rs1278960决定了INTERFERON-LAMBDA的表达,预测了重症COVID-19患者的炎症反应

Timo Mayerhöfer^1,2, Michael Joannidis², Sebastian Klein^2,3,4

¹Department of Medicine I, Gastroenterology, Hepatology, Endocrinology and Metabolism, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria.

Scientific reports

|May 6, 2025

概括

rs12979860遗传变异影响干扰素兰巴达4 (IFNλ4) 生产,影响严重的COVID-19进展. TT基因型携带者经历了炎症加剧和更糟糕的临床结果,包括增加机械呼吸和置换疗法的需要.

科学领域:

免疫学免疫学免疫学
遗传学遗传学是一个
病毒学病毒学

背景情况:

单核酸多态性 (SNP) rs12979860与干扰素兰巴达4 (IFNλ4) 的产生有关,干扰素是一种III型干扰素.
IFNλ4具有促炎性质,可以提供对病毒感染的保护.

研究的目的:

调查基因确定IFNλ4水平与严重病情的SARS-CoV-2患者的疾病进展之间的关联.
分析rs12979860多态对炎症标志物和严重COVID-19的临床结果的影响.

主要方法:

在184名重症COVID-19患者的前性单中心研究中.
针对rs12979860 SNP进行基因型定型,并对每日实验室数据 (CRP,费里丁,纽波特林) 进行纵向分析.
将基因型频率与外部验证队列进行比较,并评估临床结果 (脏替代疗法,机械通风).

主要成果:

rs12979860的TT基因型与服用后10-15天之间显著更高的CRP,费里丁和纽波特林峰值水平有关.
具有TT基因型的患者表现出更高的替代疗法发病率 (31.6%对11.7%) 和更长的机械通风持续时间 (22天对15天).
在基因型组之间没有观察到炎症标志物的显著基线差异.

结论:

SNP rs12979860与重症COVID-19患者的不同炎症轨迹有关.
影响免疫反应的遗传变异,特别是IFNλ4的产生,在确定炎症的严重程度和严重COVID-19的临床结果方面发挥着作用.

关键词:

费里胺是一种铁素.在 IFNλ4中,免疫反应的免疫反应.干扰素兰巴达4 干扰素兰巴达4 介质蛋白28B 介质蛋白28B 介质蛋白这种新素是新素的.这就是SARS-CoV-2病毒.

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Single Nucleotide Polymorphisms-SNPs

Single Nucleotide Polymorphisms-SNPs

A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...