对ACE2和TMPRSS2的表达以及COVID-19的严重程度
Samantha Sanches De Carvalho1, Anna Carolina Blanco Capassi Santos1, Marcos Yuji Shiroma Graziano2
1Clinical Analysis Laboratory, FMABC University Center, Santo André, São Paulo 09060-870, Brazil.
降低血管酶转化酶2 (ACE2) 基因表达与SARS-CoV-2感染有关,但ACE2和TMPRSS2的表达不能可靠地预测COVID-19的严重程度. 需要对多因素模型进行进一步的研究,以了解疾病的进展.
科学领域:
- 病毒学 病毒学
- 遗传学 是一个遗传学.
- 流行病学 流行病学
背景情况:
- 严重急性呼吸道综合征冠状病毒2 (SARS-CoV-2) 利用ACE2和TMPRSS2进入宿主细胞.
- ACE2和TMPRSS2基因表达的变异可能会影响COVID-19的易感性和疾病严重程度.
研究的目的:
- 为了研究ACE2和TMPRSS2在鼻细胞中的表达.
- 确定ACE2和TMPRSS2表达与COVID-19感染和临床结果之间的关联.
主要方法:
- 来自491名个人的鼻样本使用逆转录-定量聚合酶链反应 (RT-qPCR) 进行了分析.
- 量化了ACE2和TMPRSS2的基因表达水平.
- 统计分析评估了与感染状况,年龄,性别和疾病严重程度的关联.
主要成果:
- 感染SARS-CoV-2的个体年龄较大,主要是男性.
- 感染个体的ACE2表达显著降低 (P<0.001).
- 在ACE2或TMPRSS2表达与COVID-19严重程度或性别之间没有发现显著的关联.
结论:
- 降低ACE2的调节可能与SARS-CoV-2感染有关,可能表明病毒逃避策略.
- 无论是ACE2还是TMPRSS2鼻基因表达都不是预测COVID-19严重性的可靠生物标志物.
- 多因素模型对于全面了解COVID-19疾病进展至关重要.
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