严重的COVID-19的发展与CIAS1基因中的多态化之间存在关联,该基因编码了炎症组分的炎症组分
Tania R Tozetto-Mendoza1, Maria Cassia Mendes-Correa2,3, Iara Moreno Linhares4
1Laboratório de Virologia LIM 52, Instituto de Medicina Tropical de São Paulo, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil. tozetto@usp.br.
Scientific reports
|July 12, 2023
概括
一种特定的基因变异,CIAS1 12等位基因,与较高的炎症体活性和严重的冠状病毒疾病-2019 (COVID) 的风险增加有关. 这一发现表明,有严重的COVID-19症状的遗传倾向.
科学领域:
- 遗传学和免疫学 遗传学和免疫学
- 传染病研究 传染病研究
背景情况:
- 增高的促炎性细胞因子反应与严重的2019年新冠肺炎疾病 (COVID-19) 有关.
- 炎症组合体调节关键的炎症性细胞因子,如IL-1β和IL-18.
- 由CIAS1基因编码的NALP3对于炎症酶激活至关重要.
研究的目的:
- 研究CIAS1基因多态性 (rs74163773) 与COVID-19的严重程度之间的关联.
- 为了确定特定的CIAS1等位基因是否会影响炎症体活性和COVID-19的结果.
主要方法:
- 在患有严重COVID-19,轻度COVID-19和健康对照的人群中,对CIAS1 42基对长度多态 (rs74163773) 的基因型分析分析.
- 在CIAS1多态体内,对不同重复单元 (6,7,9,12,13) 的等位基频率进行量化.
- 疾病严重程度组之间的等位基频率的统计比较.
主要成果:
- 这12个重复单元 (与最高的炎症体活性相关) 在严重的COVID-19患者中 (45.3%) 与轻度的COVID-19患者 (30.0%) 和对照组 (26.0%) 相比,明显更频繁 (p < 0.0001).
- 相反,与对照组 (30.1%) 相比,在严重 (14.0%) 和轻度 (12.5%) 的COVID-19病例中,7个单元重复等位基因的频率较低 (p ≤ 0.0017).
- 根据5个已识别的等位基因,确定了12种不同的基因型.
结论:
- CIAS1 12异位基因与患重症COVID-19的风险增加有关.
- 携带CIAS1 12等位基因的个体可能会经历炎症性细胞因子的增加,这有助于疾病的严重程度.
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