作者
Elissa A Fink, Jun Xu, Harald Hübner, Joao M Braz, Philipp Seemann, Charlotte Avet, Veronica Craik, Dorothee Weikert, Maximilian F Schmidt, Chase M Webb, Nataliya A Tolmachova, Yurii S Moroz, Xi-Ping Huang, Chakrapani Kalyanaraman, Stefan Gahbauer, Geng Chen, Zheng Liu, Matthew P Jacobson, John J Irwin, Michel Bouvier, Yang Du, Brian K Shoichet, Allan I Basbaum, Peter Gmeiner
发表日期
2022/9/30
期刊
Science
卷号
377
期号
6614
页码范围
eabn7065
出版商
American Association for the Advancement of Science
简介
Because nonopioid analgesics are much sought after, we computationally docked more than 301 million virtual molecules against a validated pain target, the α2A-adrenergic receptor (α2AAR), seeking new α2AAR agonists chemotypes that lack the sedation conferred by known α2AAR drugs, such as dexmedetomidine. We identified 17 ligands with potencies as low as 12 nanomolar, many with partial agonism and preferential Gi and Go signaling. Experimental structures of α2AAR complexed with two of these agonists confirmed the docking predictions and templated further optimization. Several compounds, including the initial docking hit ‘9087 [mean effective concentration (EC50) of 52 nanomolar] and two analogs, ‘7075 and PS75 (EC50 4.1 and 4.8 nanomolar), exerted on-target analgesic activity in multiple in vivo pain models without sedation. These newly discovered agonists are interesting as therapeutic …
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