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在多发性硬化症中皮质-脑膜转位蛋白表达的特征

Elena Herranz^1,2, Constantina A Treaba^1,2, Valeria T Barletta^1,2

¹Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA 02129, USA.

Brain : a journal of neurology

|January 30, 2024

概括

定子发射断层扫描 (PET) 图像显示多发性硬化症患者的大脑中转位蛋白 (TSPO) 的升高,表明免疫细胞活性增加. 这一发现支持TSPO-PET作为可视化多发性硬化症中脑膜炎症的工具.

科学领域:

神经科学是一个神经科学.
免疫学免疫学免疫学
放射学放射学是一门学科.

背景情况:

脑膜炎症与多发性硬化症 (MS) 病原发生有关,特别是皮质脱髓化.
转位蛋白 (TSPO) 是免疫细胞活性的标记物,使其成为体内成像的目标.

研究的目的:

通过同时使用MR-PET和ex vivo免疫组织化学,对MS患者皮层和脑膜TSPO表达的特征.
调查TSPO水平,疾病进展和MS的临床残疾之间的关系.

主要方法:

49名多发性硬化患者和21名健康对照人接受了11C-PBR28MR-PET扫描.
从20个二次进展性多发性硬化症病例和5个对照组的死后脑组织使用免疫组织化学分析.
在皮层和脑膜组织中量化了TSPO表达.

主要成果:

与对照人群相比,MS患者在皮质和脑膜中显示了TSPO信号的增加.
脑膜TSPO水平升高与MS患者扩大残疾状态量表得分较高相关.
免疫组织化学证实在脑膜炎症和死后多发性硬化症大脑中的亚皮性病变中增加了TSPO表达.

结论:

TSPO-PET是一种有价值的工具,用于成像体内炎症在MS的皮质脑膜区.
这些发现提供了体内证据,将脑膜炎与多发性硬化症的发病症联系起来.

关键词:

皮层皮层皮层脑膜是指脑膜.多发性硬化症多发性硬化症定子发射断层扫描 (PET).转位蛋白是一种转位蛋白.

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