在多发性硬化症中,退化和自身免疫之间的复杂相互作用的新观点
Peter K Stys1, Shigeki Tsutsui1, Arie R Gafson2
1Department of Clinical Neurosciences, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
Frontiers in cellular neuroscience
|August 20, 2024
概括
多发性硬化症 (MS) 可能不是主要的自身免疫. 新出现的证据表明,一种主要的细胞退行过程,准髓,是MS进展的基础,而炎症是次要因素.
科学领域:
- 神经免疫学 神经免疫学
- 神经退行发生神经退行.
- 多发性硬化症的病理生理学
背景情况:
- 多发性硬化症 (MS) 传统上被视为由炎症和免疫反应引起的自身免疫性疾病.
- 目前的免疫调节疗法有效地控制复发,但对MS进展的影响有限.
- 神经病理学发现显示,在渐进阶段,当炎症减少时,显著的退化和髓损失.
研究的目的:
- 挑战MS的主流自身免疫假设.
- 提出一个替代理论,强调在MS病变发生过程中的主要细胞退行过程.
- 探索神经退行症的作用和潜在的触发因素,如爱斯坦-巴尔病毒.
主要方法:
- 现有治疗数据和临床观察的审查和综合.
- 在MS组织中分析神经病理发现.
- 探索与其他神经退行性疾病的相似性.
主要成果:
- 强效的免疫疗法在多发性硬化症的进展阶段效果较差.
- 髓和神经元损伤在晚期最明显,与减少的炎症相吻合.
- 临床概念如"不依赖复发活动的进展"表明早期的退行性过程.
结论:
- 自免疫模型可能无法完全解释多发性硬化症,特别是其渐进阶段.
- 针对髓化单元的初级细胞退行过程可能是MS的最初步骤.
- 这种细胞退行过程可能会被自身免疫性炎症反应加剧,爱斯坦-巴尔病毒和B细胞可能发挥作用.
相关概念视频
01:29Autoimmune Disorders
398
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...
398
01:24T Cell Types and Functions
964
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
964
01:15Parkinson's Disease: Overview
501
Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is...
501