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GAMBOGIC AMINE, A SELECTIVE TrkA AGONIST WITH NEUROPROTECTIVE ACTIVITY
GAMBOGIC AMINE, A SELECTIVE TrkA AGONIST WITH NEUROPROTECTIVE ACTIVITY
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机译:GAMBOGIC胺,一种具有神经保护活性的选择性TrkA激动剂
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摘要
Small molecule agonists, partial agonists, and antagonists for the TrkA receptor are described. The compounds are gambogic amines, where the carboxylic acid group of gambogic acid (CO2H) has been replaced by an amine group (CH2NR1R2). In some embodiments, the compounds selectively bind to TrkA but not TrkB or C, robustly induce its tyrosine phosphorylation and downstream signaling activation including Akt and MAP kinases. Further, they can strongly prevent glutamate-induced neuronal cell death and provoke prominent neurite outgrowth in PC12 cells. Gambogic amines specifically interact with the cytoplasmic juxtamembrane domain of TrkA receptor and trigger its dimerization. Administration of these compounds in can substantially diminishes Kainic acid-triggered neuronal cell death and decrease infarct volume in transient middle cerebral artery occlusion (MCAO) model of stroke. Thus, these compounds can provide effective treatments for debilitating neurodegenerative diseases and provide neuroprotection from patients suffering from stroke or other ischemic events.
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机译:描述了TrkA受体的小分子激动剂,部分激动剂和拮抗剂。这些化合物是藤黄胺,其中藤黄酸(CO 2 Sub> H)的羧酸基已被胺基(CH 2 Sub> NR 1 Sub> R 2 Sub>)。在一些实施方案中,化合物选择性地结合TrkA而不结合TrkB或C,牢固地诱导其酪氨酸磷酸化和下游信号传导激活,包括Akt和MAP激酶。此外,它们可以强烈防止谷氨酸诱导的神经元细胞死亡,并引起PC12细胞中明显的神经突增生。藤黄胺与TrkA受体的胞质近膜结构域特异性相互作用,并触发其二聚化。在中风的短暂性中脑动脉闭塞(MCAO)模型中,这些化合物的施用可以大大减少海因酸触发的神经元细胞死亡,并减少梗塞体积。因此,这些化合物可以为使神经退行性疾病衰弱提供有效的治疗,并为患有中风或其他缺血性事件的患者提供神经保护。
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