多组学将氧化应激,前血栓性通路和乳酸氧化酶变体确定为COVID-19严重程度的关键因素
Claudio Cappadona1, Valeria Rimoldi1, Francesca Tettamanzi1
1Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy; IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milan, Italy.
EBioMedicine
|January 7, 2026
概括
遗传因素影响COVID-19的严重程度. 我们的研究将氧化应激和线粒体功能障碍,特别是LPO基因,与严重的结果联系起来,这表明受损的ROS中和有助于疾病进展.
科学领域:
- 遗传学 是一个遗传学.
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 由于SARS-CoV-2,在意大利有超过2600万例感染和20万例死亡.
- 了解宿主遗传因素对于破译COVID-19严重程度机制至关重要.
研究的目的:
- 在意大利人口中使用多omics方法调查对COVID-19严重性的遗传易感性.
- 为了识别与严重呼吸道结果相关的宿主遗传特征,例如ICU入院.
主要方法:
- 对罕见生殖系变异的外体范围的病例对照研究 (215名严重患者与1755名对照).
- 59名住院患者的转录组分析 (基因表达,替代拼接).
- 基因组和转录组数据的整合,在独立的队列中得到验证.
主要成果:
- 与参与氧化应激和线粒体功能障碍 (MTERF1,TDP1,LPO) 的基因发现了显著的关联.
- 在"活性氧物种"",氧化酸化"和"炎症反应"中致富路径.
- 已确定为关键基因的LPO (乳氧化酶),在ICU患者中升级调节,并与元分析中的严重程度相关 (p=0.0050,OR=3.44).
结论:
- 多omics分析涉及COVID-19严重性中的氧化应激和线粒体功能障碍.
- 已确定LPO是候选易感基因,可能会损害宿主ROS中和能力.
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