A method of an in vitro screening for a ligand using two assay systems i.e. in a first cellular or tissue assay system, selecting the ligand with transcriptional ER-mediated activity measured by an ER-driven reporter gene, whereby in the first assay system the ligand activates the potency with an EC50(ER) (half-maximally effective ligand concentration) lower than to 10 nmol/l, and, in a second enzymatic assay system, selecting the physical-chemical interaction (recruitment) of SRC-1, wherein the ligand activates the ER and induces interaction with the co - present SRC-1 with an EC50(ER+SRC) higher than to 100 nmol/l.
The ligands found by the inventive screening can be used for the treatment and prevention of neuro - degeneration in the cerebral cortex and are thus useful for treatment and prevention of age-related cognitive disorders, affective disorders, Alzheimer's diseases and cerebral ischemia / stroke.
一种利用两种检测系统对
配体进行体外筛选的方法,即在第一种细胞或组织检测系统中,通过ER驱动的报告
基因,选择具有ER介导的转录活性的
配体,其中,在第一种检测系统中,
配体激活效力的
EC50(ER)(半最大有效
配体浓度)低于10 nmol/l、在第二个酶测定系统中,选择 SRC-1 的物理
化学相互作用(招募),其中
配体激活 ER 并诱导与共存的 SRC-1 相互作用,
EC50(ER+SRC)高于 100 nmol/l。
通过本发明筛选发现的
配体可用于治疗和预防大脑皮层的神经变性,因此可用于治疗和预防与年龄相关的认知障碍、情感障碍、阿尔茨海默病和脑缺血/中风。