在临床孤立综合征发生30年后,遗传因素对疾病的进展和严重程度的影响
Nitin Sahi1, Lukas Haider1,2, Karen Chung1
1NMR Research Unit, Queen Square Multiple Sclerosis Centre, University College London Queen Square Institute of Neurology, London WC1N 3BG, UK.
Brain communications
|October 16, 2023
概括
遗传因素影响多发性硬化症的进展. 像HLA-DRB1*1501,PVRL2和IRX1这样的特定基因与30年内的疾病严重程度,病变积累和残疾有关.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 免疫学 免疫学 免疫学
背景情况:
- 多发性硬化症 (MS) 具有已知的遗传风险成分,但其对疾病过程和严重性的影响尚不清楚.
- 具有详细的临床和放射学数据的长期研究对于检查对MS进展的遗传贡献至关重要.
研究的目的:
- 调查遗传影响的长期疾病的过程和严重程度在临床隔离综合征 (CIS) 患者的独特队列.
- 在30年的随访期内探索特定基因与临床/放射学结果之间的关联.
主要方法:
- 追溯分析61名CIS患者的30年随访,包括临床评估和先进的MRI.
- 调查27个基因与疾病进程 (复发性缓解性多发性硬化症,继发性渐进性多发性硬化症,CIS) 和扩展残疾状态量表 (EDSS) 的关联.
- 混合效应模型用于评估遗传关联与EDSS变化,复发,白质病变和30年脑缩的遗传关联.
主要成果:
- *HLA-DRB1*1501*阳性与更快的白质病变积累,病变体积增加和更高的复发率有关.
- *PVRL2*阳性与更多的皮层病变,更快的EDSS恶化,更大的整体EDSS以及二次进展性MS的风险增加相关.
- *IRX1*阳性与保持灰质分数,皮质病变风险降低,长期EDSS降低和二次进展性MS风险降低有关.
结论:
- 探索性发现表明,各种遗传因素对驱动多发性硬化症病程和严重性的病理机制产生重大影响.
- 包括*HLA-DRB1*1501*,*PVRL2*和*IRX1*在内的特定基因显示出与炎症,灰质病理,残疾进展和向渐进性多发性硬化症表型过渡有明显的关联.
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