首先B细胞下降,然后T细胞随之而来:多发性硬化症中用ocrelizumab进行时间免疫学转变
Gianmarco Abbadessa1,2, Elisabetta Maida1, Simona Bonavita3
1Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Via Pansini 5, 80131, Naples, Italy.
Journal of neurology
|August 16, 2025
概括
在多发性硬化症 (MS) 患者中,ocrelizumab迅速抑制B细胞通路. 在六个月内,它还延迟了T细胞调节,揭示了超出B细胞枯竭的双相免疫反应.
科学领域:
- 免疫学 免疫学 免疫学
- 神经免疫学 神经免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 奥克雷利祖马布 (OCR) 是一种用于多发性硬化症 (MS) 的抗CD20单克隆抗体.
- 它的有效性与B细胞枯竭有关,但正在出现更广泛的免疫调节效应.
- 了解这些影响对于MS治疗优化至关重要.
研究的目的:
- 研究Ocrelizumab在MS患者中诱导的时间免疫调节.
- 分析在治疗早期和晚期阶段对外围血液单核细胞 (PBMCs) 免疫通路丰富的变化.
- 为了阐明Ocrelizumab在B细胞枯竭之外的综合免疫调节特征.
主要方法:
- 对15名接受Ocrelizumab治疗的MS患者的公开可用的转录组数据 (GSE228330) 的分析.
- 使用CIBERSORTx.x进行免疫细胞亚种群的估计.
- 使用基因组变异分析 (GSVA) 量化免疫相关途径丰富的基因组变异分析 (GSVA) 在基线,2周和6个月.
主要成果:
- 早期Ocrelizumab治疗选择性地抑制了B细胞通路,包括MHC-II抗原呈现和B细胞增殖.
- 早期观察到抗炎和先天性免疫信号 (例如IL-10) 的补偿性上调.
- 在6个月后,持续的B细胞抑制伴随着T细胞特异性通路的显著下调 (例如CD4+T细胞激活) 和T细胞调节区的重新配置.
结论:
- 在MS中,ocrelizumab表现出双相免疫调节作用.
- 它迅速直接抑制B细胞通路.
- 随着时间的推移,T细胞介导免疫的延迟,间接调节发生.
相关概念视频
Immunological Memory
4.9K
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...
4.9K
Cells of the Adaptive Immune Response
4.1K
The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
4.1K
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents
271
Crohn's disease is an inflammatory bowel disorder marked by chronic inflammation of the GI tract. Various treatment strategies for Crohn's disease are employed, such as immunomodulatory agents, glucocorticoids, and biologics or anti-TNF therapy. Azathioprine (Imuran), a commonly used immunomodulatory drug for Crohn's disease, is converted in the body to mercaptopurine, which inhibits purine biosynthesis and cell proliferation. Both are utilized in severe cases of Inflammatory Bowel...
271
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
Autoimmune Disorders
672
Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
Concept and Mechanism of Autoimmune Diseases
The immune...
Concept and Mechanism of Autoimmune Diseases
The immune...
672
Drugs for Treatment of Crohn's Disease in IBD Using Glucocorticoids
203
Glucocorticoids, a class of anti-inflammatory drugs, are pivotal in treating moderate to severe Crohn's disease by inducing remission. They exhibit their anti-inflammatory action by inhibiting the production of inflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-1, and chemokines like IL-8. In addition, they reduce the expression of inflammatory cell adhesion molecules and inhibit gene transcription of nitric oxide synthase, phospholipase A2, cyclooxygenase-2...
203


