过量的铁会加剧COVID-19感染的严重程度
Gaurav Kumar Chaubey1, Rahul Dilawari1, Radheshyam Modanwal1
1Institute of Microbial Technology, CSIR, Sector 39A, Chandigarh, 160036, India.
Free radical biology & medicine
|August 8, 2023
概括
高铁水平会通过增加病毒进入和炎症,使COVID-19恶化. 限制铁可能有助于治疗严重急性呼吸系统综合征冠状病毒2 (SARS-CoV-2) 感染.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 生物化学 生物化学
背景情况:
- 严重的COVID-19与过度炎症和过多的铁 (超高铁血) 有关.
- 铁过载会损害免疫功能,增加感染风险.
- 病毒需要铁补充宿主进行复制.
研究的目的:
- 为了研究铁含量如何影响SARS-CoV-2伪病毒的感染性.
- 为了检查铁过载对对SARS-CoV-2尖端蛋白的细胞炎症反应的影响.
主要方法:
- 在体外研究中使用感染SARS-CoV-2伪病毒的带铁的细胞.
- 测量ACE2受体表达,活性氧/物种和炎症标志物.
- 使用小鼠模型进行体内验证.
主要成果:
- 铁过载增强了ACE2受体表达,增加了伪病毒的感染力.
- 细胞铁过载放大了对尖端蛋白的炎症反应 (细胞因子,化学因子).
- 在体内研究证实了这些发现.
结论:
- 高水平的铁会促进SARS-CoV-2感染和炎症.
- 限制铁可能是病毒感染的潜在治疗策略.
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