Multitarget µ-Opioid Receptor AgonistsâNeuropeptide FF Receptor Antagonists Induce Potent Antinociception with Reduced Adverse Side Effects.
J Med Chem
; 67(9): 7603-7619, 2024 May 09.
Article
em En
| MEDLINE
| ID: mdl-38687204
ABSTRACT
The design of bifunctional compounds is a promising approach toward the development of strong analgesics with reduced side effects. We here report the optimization of the previously published lead peptide KGFF09, which contains opioid receptor agonist and neuropeptide FF receptor antagonist pharmacophores and is shown to induce potent antinociception and reduced side effects. We evaluated the novel hybrid peptides for their in vitro activity at MOP, NPFFR1, and NPFFR2 and selected four of them (DP08/14/32/50) for assessment of their acute antinociceptive activity in mice. We further selected DP32 and DP50 and observed that their antinociceptive activity is mostly peripherally mediated; they produced no respiratory depression, no hyperalgesia, significantly less tolerance, and strongly attenuated withdrawal syndrome, as compared to morphine and the recently FDA-approved TRV130. Overall, these data suggest that MOP agonist/NPFF receptor antagonist hybrids might represent an interesting strategy to develop novel analgesics with reduced side effects.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Receptores de Neuropeptídeos
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Receptores Opioides mu
Limite:
Animals
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Humans
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Male
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article