Discovery of Mixed Pharmacology Melanocortin-3 Agonists and Melanocortin-4 Receptor Tetrapeptide Antagonist Compounds (TACOs) Based on the Sequence Ac-Xaa<sup>1</sup>-Arg-(pI)DPhe-Xaa<sup>4</sup>-NH<sub>2</sub>
作者:Skye R. Doering、Katie T. Freeman、Sathya M. Schnell、Erica M. Haslach、Marvin Dirain、Ginamarie Debevec、Phaedra Geer、Radleigh G. Santos、Marc A. Giulianotti、Clemencia Pinilla、Jon R. Appel、Robert C. Speth、Richard A. Houghten、Carrie Haskell-Luevano
DOI:10.1021/acs.jmedchem.7b00301
日期:2017.5.25
and pharmacologically characterized at the mouse melanocortin-1, -3, -4, and -5 receptors. This resulted in the serendipitous discovery of nine compounds that were MC3R agonists (EC50 < 1000 nM) and MC4R antagonists (5.7 < pA2 < 7.8). The three most potent MC3R agonists, 18 [Ac-Arg-Arg-(pI)DPhe-Tic-NH2], 1 [Ac-His-Arg-(pI)DPhe-Tic-NH2], and 41 [Ac-Arg-Arg-(pI)DPhe-DNal(2′)-NH2] were more potent (EC50
已经研究了集中表达的黑皮质素-3和-4受体(MC3R / MC4R)作为体重控制治疗的可能靶标,其中许多研究集中在MC4R上。在此,报道了新型的四肽支架[Ac-Xaa 1 -Arg-(pI)DPhe-Xaa 4 -NH 2 ]。支架是从基于MC3R混合物的位置扫描运动获得的结果中得出的。根据这些结果,设计了一组48种四肽,并在小鼠黑皮质素-1,-3,-4和-5受体上进行了药理学表征。这偶然发现了九种化合物,它们分别是MC3R激动剂(EC 50 <1000 nM)和MC4R拮抗剂(5.7