作者:Mengjun Ma、Jialin Sun、Menghua Li、Zixing Yu、Jingchao Cheng、Bohua Zhong、Weiguo Shi
DOI:10.3390/molecules24020259
日期:——
undetectable β-arrestin-2 recruitment, however, their analgesic effects need to be further confirmed. Compounds 7b, 7d, and 7g were stronger analgesics than PZM21 in both the mouse formalin injection assay and the writhing test. Compound 7d was the most potent analogue, requiring a dose that was 1/16th to 1/4th of that of PZM21 for its analgesic activity in the two assays, respectively. Therefore, compound
G蛋白偶联受体(GPCR)的“偏置”配体代表了一种有希望的镇痛药,具有减少的靶上副作用。PZM21是一种有效的μ阿片受体(μOR)偏向激动剂,与经典阿片类药物相比具有新的化学支架,已被确定为治疗疼痛的治疗先导分子。在当前的研究中,合成了新颖的PZM21类似物并评估了它们的体外和体内功效。新型化合物7a和PZM21显示出无法检测到的β-arrestin-2募集,但是,其镇痛作用需要进一步证实。在小鼠福尔马林注射试验和扭体试验中,化合物7b,7d和7g的镇痛药均比PZM21强。化合物7d是最有效的类似物,在两种试验中,其镇痛活性需要的剂量是PZM21剂量的1/16至1/4,分别。因此,化合物7d可以作为开发新的偏向μOR激动剂来治疗疼痛的先导。