Pharmacological Characterization of the Imipridone Anticancer Drug ONC201 Reveals a Negative Allosteric Mechanism of Action at the D
Allosteric Regulation
/ drug effects
Animals
Antineoplastic Agents
/ chemistry
CHO Cells
Cricetinae
Cricetulus
Dopamine D2 Receptor Antagonists
/ chemistry
Dose-Response Relationship, Drug
HEK293 Cells
Humans
Imidazoles
/ chemistry
Protein Binding
/ drug effects
Protein Structure, Secondary
Pyridines
/ chemistry
Pyrimidines
/ chemistry
Receptors, Dopamine D2
/ chemistry
Journal
Molecular pharmacology
ISSN: 1521-0111
Titre abrégé: Mol Pharmacol
Pays: United States
ID NLM: 0035623
Informations de publication
Date de publication:
10 2021
10 2021
Historique:
received:
11
06
2021
accepted:
26
07
2021
pubmed:
7
8
2021
medline:
11
11
2021
entrez:
6
8
2021
Statut:
ppublish
Résumé
ONC201 is a first-in-class imipridone compound that is in clinical trials for the treatment of high-grade gliomas and other advanced cancers. Recent studies identified that ONC201 antagonizes D2-like dopamine receptors at therapeutically relevant concentrations. In the current study, characterization of ONC201 using radioligand binding and multiple functional assays revealed that it was a full antagonist of the D2 and D3 receptors (D2R and D3R) with low micromolar potencies, similar to its potency for antiproliferative effects. Curve-shift experiments using D2R-mediated
Identifiants
pubmed: 34353882
pii: molpharm.121.000336
doi: 10.1124/molpharm.121.000336
pmc: PMC8626643
doi:
Substances chimiques
Antineoplastic Agents
0
DRD2 protein, human
0
Dopamine D2 Receptor Antagonists
0
Imidazoles
0
Pyridines
0
Pyrimidines
0
Receptors, Dopamine D2
0
TIC10 compound
9U35A31JAI
Types de publication
Journal Article
Research Support, N.I.H., Intramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
372-387Subventions
Organisme : Intramural NIH HHS
ID : ZIA DA000609
Pays : United States
Organisme : Intramural NIH HHS
ID : ZIA NS002263
Pays : United States
Informations de copyright
U.S. Government work not protected by U.S. copyright.
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