微流体免疫血清测试揭示了系统水平与COVID-19病理学和疫苗保护相关的关联
Dongjoo Kim1, Giulia Biancon2, Zhiliang Bai1
1Department of Biomedical Engineering, Yale University, New Haven, CT, 06520, USA.
Small methods
|June 14, 2023
概括
一种新的微流体测定测量50个免疫标记,以评估COVID-19的保护. 它揭示了癌症患者的抗体反应受损,突出了个性化疫苗接种策略的需要.
科学领域:
- 免疫学 免疫学 免疫学
- 生物技术是生物技术.
- 医学诊断 医学诊断 医学诊断
背景情况:
- 评估对COVID-19的免疫保护需要有信息的血清学试验.
- 现有的方法可能缺乏多重复合能力来捕获复杂的免疫反应.
研究的目的:
- 开发一种高复合性免疫血清测定方法,用于同时测量可溶性标记物和抗体对抗COVID-19.
- 在感染或接种疫苗后分析血液恶性瘤患者和健康捐赠者的免疫反应.
主要方法:
- 一个微流体平台,可以同时测量50个可溶性标记物和11个抗尖/受体结合域 (RBD) IgG抗体.
- 对1012个血液样本进行高通量分析,包括患者和对照组的纵向数据.
- 蛋白质与蛋白质相互作用和抗体克隆型多样性的分析.
主要成果:
- 该试验显示了高吞吐量,低样本量,可重复性和准确性.
- 鉴定出了不同的免疫媒介模块,在患有血液性恶性瘤或接受B细胞枯竭治疗的患者中多样性减少.
- 患有血液性恶性瘤的COVID-19患者表现出抗RBD抗体反应受损,尽管与B细胞缺乏相关的高抗尖峰IgG.
结论:
- 开发的试验提供了一个系统级工具,用于监测对COVID-19的免疫反应.
- 个性化免疫策略对于高风险患者至关重要,特别是那些患有血液性恶性瘤的患者.
- 这些发现强调了评估B细胞功能和抗体多样性的重要性,以确定疫苗在免疫受损个体中的有效性.
更多相关视频
07:08A Rapid, Multiplex Dual Reporter IgG and IgM SARS-CoV-2 Neutralization Assay for a Multiplexed Bead-Based Flow Analysis System
Published on: April 6, 2021
5.1K
08:21Cell-Free Dot Blot as a Practical and Adaptable Immunoassay Platform for the Detection of Antibody Response in Human and Animal Sera
Published on: May 23, 2025
379
相关概念视频
01:33Enzyme-Linked Immunosorbent Assay
13.8K
In 1971, Peter Perlman and Eva Engvall developed an Enzyme-linked immunosorbent assay (ELISA or EIA). ELISA differs from western blot in that the assays are conducted in microtiter plates or in vivo rather than on an absorbent membrane.
There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen. Enzyme-substrate reaction allows the antigen to be visualized or...
There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen. Enzyme-substrate reaction allows the antigen to be visualized or...
13.8K
01:29Immune Response Against Viral Pathogens
830
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
830