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Updated: Jul 11, 2025

Direct Stochastic Optical Reconstruction Microscopy of Extracellular Vesicles in Three Dimensions

Direct Stochastic Optical Reconstruction Microscopy of Extracellular Vesicles in Three Dimensions

Published on: August 26, 2021

细胞外囊泡的特征与COVID-19的严重程度有关

Federica Caponnetto¹, Maria De Martino¹, Daniele Stefanizzi¹

¹Department of Medicine, University of Udine, Udine, Italy.

Journal of cellular and molecular medicine

|November 15, 2023

概括

描述细胞外囊泡 (EVs) 有助于预测COVID-19患者的结果. 较小的EV和特定生物标志物表明更好的预后,而较大的EV和其他标志物与严重疾病相关,改善了患者分层.

科学领域:

免疫学和传染病的研究
生物标志物发现发现
细胞外囊泡生物学细胞外囊泡生物学

背景情况:

COVID-19呈现异质,需要早期识别有害结果的生物标志物.
细胞外囊泡 (EVs) 在COVID-19病理生理学中发挥作用,具有有益和有害的影响.
准确的预后分层对于管理严重和危急的COVID-19患者至关重要.

研究的目的:

为了研究细胞外囊泡 (EVs) 在分层COVID-19患者的预后作用.
确定与患者结果相关的特定EV特征和临床参数.

主要方法:

招募了146名严重或危急的COVID-19患者,收集了人口统计,并发病和实验室数据.
进行了血EV尺寸和抗原性质的流动细胞测量表征.
使用弹性净逻辑回归与交叉验证用于患者分类.

主要成果:

较小的EVs (<200nm) 表达CD31,CD140b或CD42b,以及白血病和单细胞HLA-DR,预测了更好的结果.
表达N-cadherin,CD34,CD56,CD31或CD45的较大的EV,以及IL-6,RDW,NT-proBNP,年龄,prokalcitonin,CCI和pro-ADM的升高,与疾病严重程度相关.
EV尺寸和抗原性质,结合实验室工作,增强患者分层.

结论:

同时评估EV大小和抗原表达,为COVID-19患者提供了有价值的预后信息.
这种方法补充了标准的实验室诊断,以改善患者分层和管理.
电动汽车分析为了解COVID-19的严重程度和预测临床轨迹提供了一条新的途径.

关键词:

在 COVID-19 疫情中,这就是SARS-CoV2病毒.它们是apoptotic体.生物标志物生物标志物外基因组是外基因组的组成部分.细胞外囊泡中的细胞外囊泡.流动细胞计量是流动细胞计量的方法.机器学习是机器学习.微小的微小的微小的微小的微小结果就是结果.

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