调和病变,复发和伴随的恶化:多发性硬化症病原体的统一模型
Niraj Mistry1, Jeremy Hobart2, David Rog3
1Department of Clinical Neurosciences, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
Multiple sclerosis and related disorders
|June 16, 2024
概括
燃烧式多发性硬化症的特征是不依赖复发的进展,涉及皮质损伤和扩散白质损伤. 这种"双击"假设表明皮质疾病和焦点炎症驱动疾病恶化,影响长期残疾.
科学领域:
- 神经免疫学 神经免疫学
- 神经病理学神经病理学
- 临床神经学 临床神经学
背景情况:
- 目前的多发性硬化症 (MS) 分类 (复发性缓解性,次级渐进性,初级渐进性) 无法充分解释长期残疾和疾病进展.
- 进展独立于复发活动,称为燃烧的多发性硬化症,导致残疾恶化,尽管有效的疾病修饰疗法.
- 现有的疗法主要针对复发和新的MRI病变,往往无法解决潜在的燃烧病理.
研究的目的:
- 提出一种统一的多发性硬化症病原体模型,该模型整合了日益恶化的疾病和复发相关的恶化.
- 调查皮质脱髓化和正常出现的白质 (NAWM) 损伤在驱动MS的长期残疾中的作用.
- 引入一种新的"双击"假设,涉及皮质疾病和MS病变的焦点白质炎症.
主要方法:
- 对现有的流行病学,组织病理学和体内MRI关于MS进展的数据进行审查和综合.
- 皮质脱髓化与NAWM损伤严重程度和白质病变负担的相关性分析.
- 基于综合病理过程的MS病变发生的概念模型的开发.
主要成果:
- 皮层脱髓化与NAWM中扩散性损伤有显著的相关性,独立于白质病变负担.
- 在NAWM中的轴突损失比焦点白质病变更好地预测MS残疾.
- 与MS相关的恶化通常表现为长度依赖的中央轴心病变.
结论:
- 一个统一的模型表明,累积的皮质损伤负担使NAWM倾向于扩散损伤,并加剧白质损伤损伤.
- 拟议的"双击"假设认为,皮质疾病和活跃的焦点白质炎症 (或相反) 驱动着燃烧的MS.
- 进一步验证这一假设的研究可以强调针对皮质/脑膜炎症在MS治疗和监测中的重要性.
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