EPISODE · Mar 16, 2026 · 18 MIN
649-SPYTAC:基于LRP1介导的阿尔茨海默症淀粉样蛋白降解平台
from 聊聊Sci
该研究介绍了一种名为 SPYTAC 的新型合成肽平台,旨在通过细胞外定向蛋白质降解(eTPD)技术治疗阿尔茨海默病。该系统利用双特异性肽链招募 LRP1 受体,驱动致病性淀粉样蛋白-β(Aβ)进入溶酶体进行降解。实验表明,SPYTAC 不仅能通过穿透血脑屏障有效清除大脑及外周的 Aβ 沉积,还能显著改善患病小鼠的认知功能并保护神经元。与传统抗体疗法相比,这种肽类药物具有更高的安全性,能有效避免脑微出血及严重的神经炎症反应。这种模块化设计展现了在治疗由蛋白质异常堆积引起的多种疾病中的巨大临床转化潜力。References: Teng F, Liu J, Cui T, et al. Efficient amyloid-β degradation in Alzheimer’s disease using SPYTACs[J]. Cell, 2026.前往小宇宙评论区与主播互动
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649-SPYTAC:基于LRP1介导的阿尔茨海默症淀粉样蛋白降解平台
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