Rational Design, Synthesis, and Pharmacological Characterization of Novel Ghrelin Receptor Inverse Agonists as Potential Treatment against Obesity-Related Metabolic Diseases
作者:Antoine Daina、Claudio Giuliano、Claudio Pietra、Junbo Wang、Yushi Chi、Zack Zou、Fugang Li、Zhonghua Yan、Yifan Zhou、Angelo Guainazzi、Silvina Garcia Rubio、Vincent Zoete
DOI:10.1021/acs.jmedchem.8b00794
日期:2018.12.27
A new chemotype of ghrelin inverse agonists was discovered through chimeric design based on molecular scaffolds known as growth-hormone secretagogue receptor (GHSR) modulators but with divergent pharmacodynamic and pharmacokinetic properties. The structure–activities/properties exploration led to compound 47, which displayed potent human GHSR antagonism and inverse agonism in cellular assays (IC50
通过基于称为生长激素促分泌素受体(GHSR)调节剂的分子支架的嵌合设计,发现了ghrelin反向激动剂的新化学型,但具有不同的药代动力学和药代动力学特性。结构-活性/性能的探索导致化合物47,其显示强效的人GHSR拮抗作用和反向激动在细胞试验(IC 50 = 68纳米,EC 50 = 29纳米),中度口服生物利用度,和在大鼠显着的脑渗透性(˚F = 27%,B / P比= 1.9)。最初的体内研究表明,对小鼠口服或胃肠外给药后,食物摄入量有效减少(分别在1小时和8小时时分别降低了78%和38%)。需要进一步的临床前研究来评估最合适的给药方式,以促进第一个中枢性生长激素释放肽反向激动剂分子的发育,这将代表朝着治疗与肥胖相关的代谢性疾病(例如2型)的治疗剂迈出的重要一步2糖尿病。