在COVID-19相关的二级血细胞淋巴细胞瘤中进行蛋白质组分析
Susan P Canny1,2, Ian B Stanaway3, Sarah E Holton4,5
1Center for Fundamental Immunology, Benaroya Research Institute, Seattle, WA.
Critical care explorations
|January 31, 2025
概括
在COVID-19患者中,可能会出现二次性血细胞性淋巴细胞瘤 (sHLH). 特定的蛋白质,如可溶性PD-L1和免疫路径的改变,与严重的COVID-19和sHLH致命的结果有关.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 遗传学 是一个遗传学.
背景情况:
- COVID-19可以引发细胞因子风暴,类似于二次血细胞淋巴细胞瘤 (sHLH).
- 了解COVID-19相关的sHLH的分子机制对于患者的治疗结果至关重要.
研究的目的:
- 在COVID-19患者中研究与sHLH相关的蛋白质.
- 在致命的COVID-19病例中识别与免疫相关的途径缺陷.
主要方法:
- 成年COVID-19患者 (n=264) 的观察性研究,有或没有sHLH.
- 血蛋白质组学 (O-link, SomaScan) 和已故患者的基因组测序.
主要成果:
- 24名患者 (9%) 符合sHLH标准.
- 在COVID-19相关的sHLH中发现的可溶性PD-L1,瘤坏死因子-R1和IL-18BP的水平升高.
- 在致命病例中发现了DOCK8和TMPRSS15的致病变体.
结论:
- 增加sPD-L1和合成素通路的参与表明,在COVID-19相关的sHLH中,免疫反应的关键作用.
- 免疫相关的遗传变化可能会导致严重的COVID-19的高炎症和死亡率.
相关概念视频
Proteomics
7.2K
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
7.2K
Conjugated Proteins
18.2K
Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
18.2K


