在B细胞枯竭的情况下,COVID-19疫苗接种后的新型免疫诱导在炎症性中枢神经系统疾病患者中具有强大的T细胞免疫力
Mathias Fousse1, Verena Klemis2, Saskia Bronder2
1Department of Neurology, Saarland University, Homburg, Germany.
Brain and behavior
|September 3, 2025
概括
B细胞枯竭患者对mRNA疫苗的抗体反应较弱,但T细胞反应较强. 这种强大的T细胞免疫力可能会对严重的COVID-19疾病提供保护.
科学领域:
- 免疫学
- 疫苗学
- 神经免疫学
背景情况:
- 在B细胞枯竭的个体中,免疫反应是复杂的,并未完全理解.
- B细胞枯竭显著影响了适应性免疫力,特别是幽默反应.
研究的目的:
- 在B细胞枯竭的中枢神经系统炎症患者中调查SARS-CoV-2mRNA疫苗接种的临床和免疫反应.
- 为了比较B细胞枯竭患者和健康对照人群在初级和强制性疫苗接种或感染后的抗体和T细胞反应.
主要方法:
- 用BNT162b2进行双同源mRNA疫苗接种,再接种或感染.
- 测量高峰特异性IgG和中和活性.
- 对反应性T细胞 (CD4和CD8) 和细胞因子表达的流动细胞计分析.
- 自我报告的反应性评估
主要成果:
- 接种疫苗的耐受性很好,患者和对照人群的反应性相似.
- 在所有对照组中都诱导了尖端特异性抗体,但只有43%的患者,IgG水平显著降低,中和能力降低.
- 在两组中都诱导了突发反应性T细胞,患者的CD4和CD8T细胞水平相似.
- 患者表现出多功能,三倍细胞因子表达的CD4和CD8T细胞的比例较高,特别是在第三次免疫接种后.
结论:
- 在多次接种SARS-CoV-2mRNA疫苗后,B细胞枯竭患者的免疫反应能力有限.
- 在B细胞枯竭的患者中,疫苗诱导的T细胞反应强大且多功能.
- 尽管抗体产生受损,但强烈的T细胞反应可能会在B细胞枯竭的个体中提供对严重的COVID-19疾病的保护.
相关概念视频
Immunodeficiency Diseases
1.2K
Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency...
There are three main causes of immunodeficiency...
1.2K
Cell-mediated Immune Responses
72.2K
Overview
72.2K
Vaccinations
45.3K
Overview
45.3K
Cytotoxic T Cells-mediated Immune Response
1.9K
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
1.9K
Immunological Memory
4.8K
Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
4.8K
Immune Response Against Viral Pathogens
917
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...
917


