Discovery and SAR of a Series of Agonists at Orphan G Protein-Coupled Receptor 139
作者:Feng Shi、Jing Kang Shen、Danqi Chen、Karina Fog、Kenneth Thirstrup、Morten Hentzer、Jens-Jakob Karlsson、Veena Menon、Kenneth A. Jones、Kelli E. Smith、Garrick Smith
DOI:10.1021/ml100293q
日期:2011.4.14
GPR139 is an orphan G-protein coupled receptor (GPCR) Which is primarily expressed in the central nervous system (CNS). In order to explore the biological function of this receptor, selective tool compounds are required. A screening campaign identified compound 1a as a high potency PR139 agonist with an EC(50) = 39 nM in a calcium mobilization assay in CHO-K1 cells stably expressing the GPR139 receptor. In the absence of a known endogenous ligand, the maximum effect was set as 100% for 1a. Screening against 90 diverse targets revealed no cross-reactivity issues. Assessment of the pharmacokinetic properties showed limited utility,as in vivo tool compound in rat with a poor whole brain exposure of 61 ng/g and a brain/plasma (b/p) ratio of 0.03. Attempts to identify a more suitable analogue identified the des-nitrogen analogue is with a reduced polar surface area of 76.7 angstrom(2) and an improved b/p ratio of 2.8. The whole brain exposure remained low at 95 ng/g due to a low plasma exposure.
METHODS RELATED TO OPIOID THERAPEUTICS
申请人:The Scripps Research Institute
公开号:US20210338680A1
公开(公告)日:2021-11-04
The present invention provides methods for modulating opioid receptor mediated analgesic effect, e.g., promoting or enhancing analgesia in subjects in need of pain relief. Also provided in the invention are methods for ameliorating or suppressing withdrawal symptoms in subjects with chronic opioid use. These methods of the invention entail administering to the subjects in need of treatment a therapeutically effective amount of a GPR139 antagonist compound. The invention further provides methods for identifying novel compounds that can be useful for modulating opioid receptor mediated analgesic effect.
[EN] METHODS RELATED TO OPIOID THERAPEUTICS<br/>[FR] MÉTHODES ASSOCIÉES À DES AGENTS THÉRAPEUTIQUES OPIOÏDES
申请人:SCRIPPS RESEARCH INST
公开号:WO2020081538A1
公开(公告)日:2020-04-23
The present invention provides methods for modulating opioid receptor mediated analgesic effect, e.g., promoting or enhancing analgesia in subjects in need of pain relief. Also provided in the invention are methods for ameliorating or suppressing withdrawal symptoms in subjects with chronic opioid use. These methods of the invention entail administering to the subjects in need of treatment a therapeutically effective amount of a GPR139 antagonist compound. The invention further provides methods for identifying novel compounds that can be useful for modulating opioid receptor mediated analgesic effect.
Radiosynthesis and characterisation of a potent and selective GPR139 agonist radioligand