Discovery of the First α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid (AMPA) Receptor Antagonist Dependent upon Transmembrane AMPA Receptor Regulatory Protein (TARP) γ-8
作者:Kevin M. Gardinier、Douglas L. Gernert、Warren J. Porter、Jon K. Reel、Paul L. Ornstein、Patrick Spinazze、F. Craig Stevens、Patric Hahn、Sean P. Hollinshead、Daniel Mayhugh、Jeff Schkeryantz、Albert Khilevich、Oscar De Frutos、Scott D. Gleason、Akihiko S. Kato、Debra Luffer-Atlas、Prashant V. Desai、Steven Swanson、Kevin D. Burris、Chunjin Ding、Beverly A. Heinz、Anne B. Need、Vanessa N. Barth、Gregory A. Stephenson、Benjamin A. Diseroad、Tim A. Woods、Hong Yu、David Bredt、Jeffrey M. Witkin
DOI:10.1021/acs.jmedchem.6b00125
日期:2016.5.26
Transmembrane AMPA receptor regulatory proteins (TARPs) are a family of scaffolding proteins that regulate AMPA receptor trafficking and function. TARP γ-8 is one member of this family and is highly expressed within the hippocampus relative to the cerebellum. A selective TARP γ-8-dependent AMPA receptor antagonist (TDAA) is an innovative approach to modulate AMPA receptors in specific brain regions
跨膜AMPA受体调节蛋白(TARP)是调节AMPA受体运输和功能的脚手架蛋白家族。TARPγ-8是该家族的成员之一,相对于小脑在海马内高表达。选择性TARPγ-8依赖性AMPA受体拮抗剂(TDAA)是一种创新方法,可调节特定大脑区域中的AMPA受体,相对于已知的非TARP依赖性AMPA拮抗剂,有可能增加治疗指数。我们在这里首次描述了一种非竞争性AMPA受体拮抗剂的发现,该拮抗剂依赖于TARPγ-8的存在。使用三个主要的迭代周期来提高药效,CYP1A2依赖性攻击和体内清除率。一种优化的分子,化合物(-)- 25(LY3130481)对大鼠戊戊四唑引起的惊厥具有完全保护作用,而不会引起与非TARP依赖性AMPA受体拮抗剂无关的运动障碍。化合物(-)- 25可用于提供抗癫痫功效的概念证明,并减少患者的运动副作用。