Conopeptide-Derived κ-Opioid Agonists (Conorphins): Potent, Selective, and Metabolic Stable Dynorphin A Mimetics with Antinociceptive Properties
作者:Andreas Brust、Daniel E. Croker、Barbara Colless、Lotten Ragnarsson、Åsa Andersson、Kapil Jain、Sonia Garcia-Caraballo、Joel Castro、Stuart M Brierley、Paul F. Alewood、Richard J. Lewis
DOI:10.1021/acs.jmedchem.5b00911
日期:2016.3.24
Opioid receptor screening of a conopeptide library led to a novel selective κ-opioid agonist peptide (conorphin T). Intensive medicinal chemistry, guided by potency, selectivity, and stability assays generated a pharmacophore model supporting rational design of highly potent and selective κ-opioid receptor (KOR) agonists (conorphins) with exceptional plasma stability. Conorphins are defined by a hydrophobic
对阿片肽库的阿片样物质受体筛选产生了新型的选择性κ-阿片样激动剂肽(conorphin T)。在效能,选择性和稳定性测定的指导下,密集药物化学产生了一种药效团模型,该模型支持合理设计具有出色血浆稳定性的高效和选择性κ阿片受体(KOR)激动剂(伴肾上腺皮质激素)。伴肾上腺素的定义是疏水性苯并脯氨酰基部分,双精氨酸序列,间隔氨基酸,疏水残基和C端邻二硫键部分。药效团模型得到计算机对接研究的支持,揭示了与KOR激动剂强啡肽A(1-8)相似的受体-配体相互作用。在慢性内脏超敏反应的小鼠组织模型中,伴儿啡肽激动剂抑制了结肠伤害感受器,提示KOR激动剂具有治疗慢性腹痛的潜力。这种新的儿吗啡KOR激动剂类别和药效团模型为未来的合理药物开发提供了机会,并为探索κ阿片受体的作用提供了探针。