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在西尼罗病毒感染中TLR3 rs3775291变异的作用:一种病例控制研究

Stavros Bashiardes¹, Christina Tryfonos¹, Jan Richter^1,2

¹Department of Molecular Virology, Cyprus Institute of Neurology and Genetics, 2371 Nicosia, Cyprus.

|November 27, 2025

概括

收费类受体3 (TLR3) 基因变体rs3775291 (C/T) 与增加对西尼罗河病毒 (WNV) 感染的易感性有关,可能导致住院治疗. 这一发现突出了影响WNV疾病严重程度的遗传因素.

科学领域:

免疫遗传学免疫遗传学
病毒学病毒学
人类遗传学人类遗传学

背景情况:

西尼罗病毒 (WNV) 感染在人类中呈现出不同的临床严重程度.
收费类受体3 (TLR3) 在对病毒病原体的天生的免疫反应中起着至关重要的作用,包括WNV.
在TLR3,rs3775291 (C/T) 中有一种特定的单核酸多态 (SNP) 影响受体功能,并与对其他病毒感染的易感性有关,但其在WNV中的作用尚不清楚.

研究的目的:

研究TLR3 SNP rs3775291 (C/T) 与住院患者对WNV感染的易感性之间的关联.
确定这种遗传变异是否会影响患有需要住院治疗的严重WNV疾病的风险.

主要方法:

在塞浦路斯进行了一项病例控制研究.
包括20名住院WNV患者和22名健康对照 (HC).
对rs3775291 (C/T) 多态的基因定型使用TaqMan等位基因歧视试验进行.

主要成果:

在WNV患者中,C/T基因型的发生率明显高于HC患者 (27.3%) (p=0.0217).
结合的C/T和T/T基因型在WNV患者 (75%) 中比HC患者 (36.4%) (p=0.0157) 中更为普遍.
患者中T等位基因的频率较高,但没有达到统计学意义 (p=0.0640).

结论:

TLR3 SNP rs3775291的C/T基因型与对WNV感染的敏感性增加有关.
这种遗传变异可能会导致WNV住院的可能性.
建议在更大,更多样化的群体中进一步验证.

关键词:

在TLR3中,它是TLR3.西尼罗河病毒病毒.一个等位基因,一个等位基因.突变是一种突变.单个核酸的多态性.

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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,...