Discovery, Optimization, and Characterization of ML417: A Novel and Highly Selective D<sub>3</sub> Dopamine Receptor Agonist
作者:Amy E. Moritz、R. Benjamin Free、Warren S. Weiner、Emmanuel O. Akano、Disha Gandhi、Ara Abramyan、Thomas M. Keck、Marc Ferrer、Xin Hu、Noel Southall、Joseph Steiner、Jeffrey Aubé、Lei Shi、Kevin J. Frankowski、David R. Sibley
DOI:10.1021/acs.jmedchem.0c00424
日期:2020.5.28
To identify novel D3 dopamine receptor (D3R) agonists, we conducted a high-throughput screen using a β-arrestin recruitment assay. Counterscreening of the hit compounds provided an assessment of their selectivity, efficacy, and potency. The most promising scaffold was optimized through medicinal chemistry resulting in enhanced potency and selectivity. The optimized compound, ML417 (20), potently promotes
为了鉴定新型D3多巴胺受体(D3R)激动剂,我们使用β-arrestin募集试验进行了高通量筛选。对命中化合物的反筛选提供了对其选择性,功效和效能的评估。最有前途的支架通过药物化学进行了优化,从而提高了效能和选择性。优化的化合物ML417(20)可有效促进D3R介导的β-arrestin移位,G蛋白活化和ERK1 / 2磷酸化(pERK),同时对其他多巴胺受体缺乏活性。针对多种G蛋白偶联受体的ML417筛选显示出卓越的整体选择性。分子建模表明ML417以独特的方式与D3R相互作用,可能解释了其非凡的选择性。还发现ML417可以防止源自iPSC的多巴胺能神经元的神经变性。结合有希望的药代动力学和毒理学特征,这些结果表明ML417是一种新颖且独特的选择性D3R激动剂,可作为治疗神经精神疾病的研究工具和治疗先导。