Benzo[b]thiophene-2-carboxamides as novel opioid receptor agonists with potent analgesic effect and reduced constipation
作者:Ramajayam Kuppusamy、Ying-Ting Hsu、Yi-Yu Ke、Po-Wei Chang、Yung-Chiao Chang、Hsiao-Fu Chang、Pei-Chen Wang、Yu-Hao Lin、Yu-Chen Huang、Teng-Kuang Yeh、Jian-Ying Chuang、Horace H. Loh、Chuan Shih、Chiung-Tong Chen、Shiu-Hwa Yeh、Shau-Hua Ueng
DOI:10.1016/j.ejmech.2022.114728
日期:2022.12
Currently, there is a significant unmet need for novel analgesics with fewer side effects. In this study, we carried out structural modification of a hit compound previously identified in an artificial-intelligence (AI) virtual screening and discovered the potent analgesic, benzo[b]thiophene-2-carboxamide analog (compound 25) with new structural scaffold. We investigated the signaling pathways of opioid
目前,对具有较少副作用的新型镇痛剂存在显着未满足的需求。在这项研究中,我们对先前在人工智能 (AI) 虚拟筛选中发现的命中化合物进行了结构修饰,并发现了具有新结构支架的强效镇痛剂苯并[b]噻吩-2-甲酰胺类似物(化合物25 )。我们研究了化合物25介导的阿片受体信号通路,发现这种外消旋化合物通过环磷酸腺苷 (cAMP) 和 β-arrestin-2 介导的通路激活 mu-阿片受体,具有很强的效力和功效,并伴随着伤害感受素- orphanin FQ 阿片肽和 δ-阿片受体通过 cAMP 通路,效力较弱。化合物25在热刺激疼痛(ED 50值为 127.1 ± 34.65 μg/kg)和炎症诱导的异常性疼痛模型中引起有效的镇痛作用,其胃肠道转运抑制和镇痛耐受性低于吗啡。总体而言,这项研究揭示了一种降低副作用风险的新型镇痛剂。