Structural determinants of opioid and NOP receptor activity in derivatives of buprenorphine.

Structural determinants of opioid and NOP receptor activity in derivatives of buprenorphine.
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DOI:
10.1021/jm2003238
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发表时间:
2011-10-13
影响因子:
7.3
通讯作者:
Husbands SM
Husbands SM
中科院分区:
医学1区
文献类型:
--
作者:
Cami-Kobeci G;Polgar WE;Khroyan TV;Toll L;Husbands SM

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丁丙诺啡独特的药理特性使其作为止痛药和药物滥用的治疗剂获得了相当大的成功。伤害素/孤儿FQ肽(NOP)受体的激活被认为解释了丁丙诺啡行为特征的某些方面。为了进一步研究NOP的激活作用,人们合成了一系列丁丙诺啡类似物,目的是增加与NOP受体的亲和力。对这些新化合物的结合和功能分析数据表明,冰片中C20附近的区域是NOP受体活性的关键,有几个化合物显示出比丁丙诺啡更高的亲和力。其中一种化合物1b被发现是一种u阿片受体部分激动剂,其疗效与丁丙诺啡相当,但对NOP受体的疗效更高。
The unique pharmacological profile of buprenorphine has led to its considerable success as an analgesic and as a treatment agent for drug abuse. Activation of nociceptin/orphanin FQ peptide (NOP) receptors has been postulated to account for certain aspects of buprenorphine’s behavioural profile. In order to investigate the role of NOP activation further, a series of buprenorphine analogues has been synthesised with the aim of increasing affinity for the NOP receptor. Binding and functional assay data on these new compounds indicate that the area around C20 in the orvinols is key to NOP receptor activity, with several compounds displaying higher affinity than buprenorphine. One compound, 1b, was found to be a mu opioid receptor partial agonist of comparable efficacy to buprenorphine, but with higher efficacy at NOP receptors.
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