EPISODE · Jan 30, 2026 · 17 MIN
450-VCP突变诱导核孔复合物异常降解致神经退行性病变
from 聊聊Sci
这项研究揭示了含缬氨酸蛋白 (VCP) 在维持核孔复合物 (NPC) 稳定性中的关键作用。研究发现，VCP 通过其辅助因子 Ufd1-Npl4 招募至核孔，负责提取并降解受损的核孔蛋白 (Nups) 以维持细胞健康。然而，与神经退行性疾病相关的 VCP 基因突变会导致该功能异常增强，进而过度降解核心核孔蛋白。这种异常降解破坏了核质运输机制，导致 TDP-43 蛋白错误定位，从而诱发神经和肌肉组织的退化。实验证明，通过药物抑制 VCP 活性可以修复核孔结构并改善动物模型的运动功能，这为相关疾病提供了潜在的治疗方向。References: Dubey S K, Chaubey D, Ikenaga C, et al. Aberrant nuclear pore complex degradation contributes to neurodegeneration in VCP disease[J]. Neuron, 2025.前往小宇宙评论区与主播互动
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450-VCP突变诱导核孔复合物异常降解致神经退行性病变
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