药物开发 药物开发
Toshiharu Suzuki1, Haruka Saito2, Shoichi Kinoshita2
1Tokyo Metropolitan University, Hachioji, Japan.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
来自阿尔卡迪因的p3-Alcß9-19显示在阿尔茨海默氏症中具有潜力.
科学领域:
- 神经科学和神经退行性疾病
- 分子生物学和遗传学
- 药理学和药物发现
背景情况:
- 阿尔卡迪因 (Clstn3) 是一个突触膜蛋白质,被切割成,包括p3-Alcß37,p3-Alcß40和p3-Alcß9-19.
- 这些,特别是p3-Alcß9-19,可以恢复神经元模型和阿尔茨海默病 (AD) 鼠标模型中由粉样β oligomers 损害的线粒体功能.
- 识别p3-Alcß9-19的分子标对于了解其在阿尔茨海默病中的治疗潜力至关重要.
研究的目的:
- 为了识别和验证质p3-Alcß9-19.9的分子标.
- 为了分析AD小鼠模型的大脑中的基因表达特征,该小鼠模型接受了p3-Alcß9-19.9的治疗.
- 在AD相关的基因表达变化的背景下研究p3-Alcß9-19的治疗机制.
主要方法:
- 将p3-Alcß9-19 (1mg/kg) 给AppNL-F/NLF小鼠 (一种AD模型) 用一个月.
- 从接受治疗的小鼠和对照小鼠 (接受PBS治疗) 剖析的大脑区域的RNA测序 (RNAseq) 分析.
- 在小鼠模型和人类AD患者中对基因表达变化的比较分析.
主要成果:
- p3-Alcß9-19的使用改变了AD小鼠大脑中神经元和非神经元细胞的基因表达.
- 在人类阿尔茨海默症患者中,许多向下调节的基因在接受p3-Alcß9-19治疗的小鼠中被上调或呈现上调趋势.
- 相反,在p3-Alcß9-19治疗后的AD小鼠模型中,一些在人类AD患者中升级的基因被正常化.
结论:
- p3-Alcß9-19通过调节因病原蛋白在大脑中积累而改变的基因表达特征来保护神经元功能.
- 酸p3-Alcß9-19显示出作为一种治疗剂的潜力,可以保护大脑的平衡,并对抗神经退行.
- 临床前发现支持对ALC919进行进一步的临床研究,ALC919是p3-Alcß9-19的透皮配方,用于治疗阿尔茨海默病.
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