Mu-opioid receptor selective superagonists produce prolonged respiratory depression.
Mu-opioid receptor selective superagonists produce prolonged respiratory depression.
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DOI:
10.1016/j.isci.2023.107121
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发表时间:
2023-07-21
期刊:
影响因子:
5.8
通讯作者:
Mccorvy, John D.
中科院分区:
文献类型:
--
作者:
Malcolm, Nicholas J.;Palkovic, Barbara;Sprague, Daniel J.;Calkins, Maggie M.;Lanham, Janelle K.;Halberstadt, Adam L.;Stucke, Astrid G.;Mccorvy, John D.
Synthetic opioids are increasingly challenging to combat the opioid epidemic and act primarily at opioid receptors, chiefly the G protein-coupled receptor (GPCR) μ-opioid receptor (MOR), which signals through G protein-dependent and β-arrestin pathways. Using a bioluminescence resonance energy transfer (BRET) system, we investigate GPCR-signaling profiles by synthetic nitazenes, which are known to cause overdose and death due to respiratory depression. We show that isotonitazene and its metabolite, N-desethyl isotonitazene, are very potent MOR-selective superagonists, surpassing both DAMGO G protein and β-arrestin recruitment activity, which are properties distinct from other conventional opioids. Both isotonitazene and N-desethyl isotonitazene show high potency in mouse analgesia tail-flick assays, but N-desethyl isotonitazene shows longer-lasting respiratory depression compared to fentanyl. Overall, our results suggest that potent MOR-selective superagonists may be a pharmacological property predictive of prolonged respiratory depression resulting in fatal consequences and should be examined for future opioid analgesics. Isotonitazene and N-desethyl isotonitazene display superagonism at MOR Nitazenes are highly selective for MOR over KOR and DOR Nitazene superagonists induce potent analgesia on par with fentanyl Nitazene superagonists induce prolonged respiratory depression compared to fentanyl Cellular neuroscience; Molecular neuroscience; Neuroscience
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DOI:
10.1124/jpet.105.090886
发表时间:
2005-11-01
影响因子:
3.5
作者:
Ehlert, FJ
通讯作者:
Ehlert, FJ
DOI:
10.1007/bf01486702
发表时间:
1958-01-01
期刊:
KLINISCHE WOCHENSCHRIFT
影响因子:
--
作者:
BROMIG, G
通讯作者:
BROMIG, G
DOI:
10.1016/0034-5687(76)90009-8
发表时间:
1976-01-01
期刊:
RESPIRATION PHYSIOLOGY
影响因子:
--
作者:
ELDRIDGE, FL
通讯作者:
ELDRIDGE, FL
影响因子:
2.4
作者:
FLECKNELL, PA;LILES, JH;WOOTTON, R
通讯作者:
WOOTTON, R
影响因子:
7.7
作者:
Bachmutsky I;Wei XP;Durand A;Yackle K
通讯作者:
Yackle K