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    • 21. 发明授权
    • Materials and methods relating to protein aggregation in neurodegenerative disease
    • 与神经退行性疾病中的蛋白质聚集相关的材料和方法
    • US07335505B2
    • 2008-02-26
    • US10451782
    • 2002-01-15
    • Claude Michel WischikDavid HorsleyJanet Elizabeth RickardCharles Robert Harrington
    • Claude Michel WischikDavid HorsleyJanet Elizabeth RickardCharles Robert Harrington
    • C12M1/20C12N1/14C12N5/06G01N33/53G01N33/567C12Q1/02A01N63/00A01N39/00A61K48/00
    • G01N33/6896A61K31/00A61K31/5415
    • The present invention provides methods of proteolytically converting a precursor protein (e.g. tau) to a product fragment (e.g., a 12 kd fragment) in a stable cell line, wherein the precursor protein is associated with a disease state in which the precursor protein aggregates pathologically (e.g. a tauopathy), and the methods comprise: (a) providing a stable cell line transfected with nucleic acid encoding: (i) a template fragment of the precursor protein such that the template fragment is constitutively expressed in the cell at a level which is not toxic to the cell; and (ii) the precursor protein, which protein is inducibly expressed in the cell in response to a stimulus, whereby interaction of the template fragment with the precursor protein causes a conformational change in the precursor protein such as to cause aggregation and proteolytic processing of the precursor protein to the product fragment. The method is preferably used to screen for modulators of the aggregation process by monitoring production (or modulation of production) of the product band or bands. Also provided are materials for used in the assays, plus medicaments, and related uses and processes, based on compounds which show high activity in the assay of the invention e.g. reduced diaminophenothiazines.
    • 本发明提供了在稳定细胞系中将前体蛋白质(例如tau)蛋白水解转化成产物片段(例如,12kd片段)的方法,其中前体蛋白质与其中前体蛋白质在病理学上聚集的疾病状态相关联 (例如,tau蛋白病),并且所述方法包括:(a)提供用核酸转染的稳定的细胞系,编码:(i)前体蛋白的模板片段,使得模板片段在细胞中以 对细胞无毒性; 和(ii)前体蛋白质,该蛋白质响应于刺激而在细胞中可诱导表达,由此模板片段与前体蛋白质的相互作用导致前体蛋白质的构象变化,从而导致蛋白质的聚集和蛋白水解加工 前体蛋白到产物片段。 该方法优选用于通过监测产品带或带的生产(或调制生产)来筛选聚集过程的调制器。 还提供了用于测定中的材料,以及基于在本发明的测定中显示高活性的化合物的药物以及相关用途和方法,例如。 还原二氨基吩噻嗪。