会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Transgenic mice expressing human p25
    • 表达人p25的转基因小鼠
    • US06693226B1
    • 2004-02-17
    • US09496445
    • 2000-02-02
    • John D. McNeishMichael K. Ahlijanian
    • John D. McNeishMichael K. Ahlijanian
    • A01K6700
    • A01K67/0275A01K67/0278A01K2207/15A01K2217/00A01K2217/05A01K2227/105A01K2267/0312A01K2267/0318C07K14/4738C12N15/8509C12N2830/008
    • The invention provides transgenic, non-human animals and transgenic non-human mammalian cells harboring a transgene encoding a p25 (activator of the protein kinase cdk 5) polypeptide. The two neuropathological lesions associated with Alzheimer's disease (AD) are amyloid plaques and neurofibrillary tangles (NFTs), composed predominantly of amyloid &bgr; peptides and hyperphosphorylated tau, respectvely. While animal models for plaque formation exist, there is no animal model that recapitulates the formation of NFTs. This invention provides transgenic mice that overexpress human p25, an activator of cdk5, resulting in tau that is hyperphosphorylated at AD-relevant epitopes. Deposition of tau is detected in the amygdala, thalamus and cortex. Increased phosphorylated neurofilament, silver-positive neurons and neuronal death are also observed in these regions. We conclude that the overexpression of p25, an activator of cdk5, is sufficient to produce hyperphosphorylation of tau and neuronal death. The p25 transgenic mouse represents the first model for tau pathology in AD.
    • 本发明提供具有编码p25(蛋白激酶cdk 5的活化剂)多肽的转基因的转基因非人动物和转基因非人哺乳动物细胞。 与阿尔茨海默病(AD)相关的两种神经病理学病变是淀粉样斑块和神经原纤维缠结(NFTs),主要由淀粉样β肽组成,超磷酸化tau。 虽然存在斑块形成的动物模型,但没有重现NFT形成的动物模型。 本发明提供过表达人p25的转基因小鼠,其是cdk5的激活剂,导致在AD相关表位处被过度磷酸化的tau。 在杏仁核,丘脑和皮质中检测到tau的沉积。 在这些区域也观察到增加的磷酸化神经丝,银阳性神经元和神经元死亡。 我们得出结论,cd25的激活剂p25的过度表达足以产生tau和神经元死亡的高度磷酸化。 p25转基因小鼠代表AD中tau病理学的第一个模型。