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与神经退行性疾病相关的蛋白质聚合物的PET成像方面的进展

Makoto Higuchi^1,2, Kenji Tagai³, Keisuke Takahata³

¹Advanced Neuroimaging Center, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan. higuchi.makoto@qst.go.jp.

Nature reviews. Neurology

|August 12, 2025

概括

pozitron发射断层扫描 (PET) 的进步可视化了神经退行性蛋白质沉积物,如阿密洛因β和阿尔茨海默病中的tau. 新兴的PET技术为蛋白质病变提供了新的诊断和治疗策略,尽管对于特定的蛋白质点仍然存在挑战.

科学领域:

神经科学是一个神经科学.
放射化学放射化学是指辐射化学.
生物化学生物化学

背景情况:

神经退行性疾病是由特定蛋白质在大脑中的病态沉积定义的.
关键蛋白质包括粉样β (Aβ),tau,α-synuclein,TDP43和FUS,纤维结构影响疾病特异性和神经毒性.

研究的目的:

审查正子发射断层扫描 (PET) 技术的最新进展,以可视化神经退行性蛋白质病变.
突出这些PET技术在开发新型诊断和治疗方法方面的重要性.

主要方法:

审查当前的PET成像技术用于可视化神经退行性疾病中的蛋白质聚合物.
结合冷电子显微镜数据,以了解辐射追踪器与原纤维结合.

主要成果:

PET成功地可视化了阿尔茨海默病 (AD) 中的粉样β (Aβ) 沉积及其对免疫疗法的反应,尽管可视化特定的Aβ亚种是不确定的.
皮特放射追踪器检测到AD型tau沉积物,对非AD型tau病理的反应能力有限.
多重系统性缩 (MSA) 中α-synuclein的高对比性PET成像是最近的突破,其他α-synuclein病理的进展正在进行中.
绘制TDP43和FUS沉积物的图像仍然具有挑战性,需要公私合作伙伴关系来开发生物标志物.

结论:

PET成像对于理解AD等蛋白质病变的自然史和治疗反应至关重要.
需要进一步开发以提高PET可视化特定蛋白质亚种和病理的能力,超出AD型tau和MSA中的α-synuclein.
共同努力对于克服TDP43和FUS沉积物成像方面的挑战至关重要,为改善诊断和治疗铺平了道路.

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