An in Vitro and in Vivo Investigation of Bivalent Ligands That Display Preferential Binding and Functional Activity for Different Melanocortin Receptor Homodimers
作者:Cody J. Lensing、Katie T. Freeman、Sathya M. Schnell、Danielle N. Adank、Robert C. Speth、Carrie Haskell-Luevano
DOI:10.1021/acs.jmedchem.5b01894
日期:2016.4.14
probes for the melanocortin receptors have been utilized for studying various disease states including cancer, sexual function disorders, Alzheimer’s disease, social disorders, cachexia, and obesity. This study focused on the design and synthesis of bivalent ligands to target melanocortin receptor homodimers. Lead ligands increased binding affinity by 14- to 25-fold and increased cAMP signaling potency
黑素皮质素受体的药理探针已用于研究各种疾病状态,包括癌症,性功能障碍,阿尔茨海默氏病,社会障碍,恶病质和肥胖症。这项研究的重点是针对黑皮质素受体同型二聚体的二价配体的设计和合成。与它们的一价对应物相比,铅配体将结合亲和力提高了14至25倍,并将cAMP信号传递能力提高了3至5倍。出乎意料的是,取决于连接结合支架的接头,不同的二价配体表现出对特定黑皮质素受体亚型的偏好,表明各种二聚体亚型之间的结构差异。同价化合物12具有与一价对应物不同的功能,为二价配体的离散作用提供了证据。脑室内给药后,铅化合物7显着降低了小鼠的进食。据我们所知,这是黑皮质素二价配体的体内生理效应的首次报道。