在SARS-CoV2感染中急性和长期功能障碍的外周转录学
Pushkala Jayaraman1, Madhumitha Rajagopal2, Ishan Paranjpe3
1The Charles Bronfman Institute for Personalized Medicine (CBIPM), Icahn School of Medicine at Mount Sinai; New York, NY USA.
Kidney360
|February 3, 2025
概括
在COVID-19患者中,严重急性损伤 (AKI) 涉及线粒体功能障碍和ER压力,影响长期健康. 这些发现与败血症-AKI重叠,表明脏恢复的治疗潜力更广泛.
科学领域:
- 免疫学 免疫学 免疫学
- 腎臟病學 (nephrology) 是一種醫學專業.
- 基因组学就是基因组学.
背景情况:
- 急性损伤 (AKI) 是SARS-CoV-2感染的常见并发症,通常导致持续的功能障碍.
- 在COVID-19中AKI严重程度的特定转录组变化和长期后果仍然不完全理解.
研究的目的:
- 在住院的SARS-CoV-2患者中调查与AKI严重程度相关的转录组和蛋白组签名.
- 探索这些分子形状与退院后长期功能变化之间的关系.
主要方法:
- 对外围血液单核细胞 (PBMC) 的大量RNA测序和蛋白质组分析在SARS-CoV-2患者身上进行.
- 功能性丰富分析与历史性败血症-AKI数据进行了比较.
- 研究了分子特征与估计的膜过率 (eGFR) 变化之间的关联.
主要成果:
- 在SARS-CoV-2患者中,严重的AKI (2/3阶段) 与对照和轻微的AKI相比,与显著的基因表达差异有关.
- 在严重的AKI中涉及的关键途径包括未展开的蛋白质反应,细胞应激和炎症,与线粒体功能障碍和内质网膜应激有特定的联系.
- 在COVID-19相关的AKI和与败血症相关的AKI转录组之间观察到30%的功能重叠. 长期功能下降与碳水化合物代谢,线粒体功能和炎症反应中断相关.
结论:
- 在SARS-CoV-2感染中,严重的AKI的特征是线粒体功能障碍和ER压力.
- 与败血症-AKI的共享途径表明了广泛适用的治疗策略的潜力.
- 长期的功能障碍受到细胞能量代谢和免疫反应失调的影响.
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