HDAC6拯救神经退行并提供了自和UPS之间的重要联系
Udai Bhan Pandey1, Zhiping Nie, Yakup Batlevi
1Department of Neurology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA.
Nature
|June 15, 2007
概括
自补偿了神经退行症中受损的泛素-蛋白酶体系统 (UPS) 功能. 基因组脱乙酶6 (HDAC6) 是这种补偿机制的关键,为神经退行性疾病提供潜在的治疗点.
科学领域:
- 神经生物学 神经生物学 神经生物学
- 细胞生物学 细胞生物学
- 分子医学是分子医学.
背景情况:
- 晚期发病的神经退行性疾病涉及错误折叠的蛋白质积累,压倒细胞降解途径.
- 无素-蛋白酶体系统 (UPS) 和自是主要的降解系统,以前认为它们是独立运作的.
- 有证据表明,UPS和神经退行性自之间存在潜在的补偿相互作用.
研究的目的:
- 调查自是否作为UPS功能受损的补偿机制.
- 为了确定UPS损伤和补偿性自之间的分子联系,如果有的话.
- 探索增强神经退行性疾病中这种相互作用的治疗潜力.
主要方法:
- 使用Drosophila melanogaster模型具有蛋白质酶突变和旋球肌肉缩.
- 评估了基因素脱乙酶6 (HDAC6) 在调解补偿性自中扮演的角色.
- 评估了通过HDAC6表达和自来拯救UPS功能障碍相关的退化.
主要成果:
- 在模型中,诱导和补偿UPS功能受损的自.
- 鉴定出HDAC6是这种补偿性自的重要机械联系.
- HDAC6表达以自依赖的方式拯救了与UPS功能障碍相关的神经退行.
结论:
- 当UPS受损时,自作为补偿性降解系统.
- HDAC6是一个关键的分子调解器,将UPS功能障碍与补偿性自连接起来.
- 准HDAC6以增强自是一种神经退行性疾病的潜在治疗策略.
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