Identification and characterization of second-generation EZH2 inhibitors with extended residence times and improved biological activity.
EZH2
TR-FRET-binding kinetics
femtomolar
residence time
small-molecule kinetics
Journal
The Journal of biological chemistry
ISSN: 1083-351X
Titre abrégé: J Biol Chem
Pays: United States
ID NLM: 2985121R
Informations de publication
Date de publication:
Historique:
received:
15
10
2020
revised:
21
01
2021
accepted:
26
01
2021
pubmed:
2
2
2021
medline:
25
8
2021
entrez:
1
2
2021
Statut:
ppublish
Résumé
The histone methyltransferase EZH2 has been the target of numerous small-molecule inhibitor discovery efforts over the last 10+ years. Emerging clinical data have provided early evidence for single agent activity with acceptable safety profiles for first-generation inhibitors. We have developed kinetic methodologies for studying EZH2-inhibitor-binding kinetics that have allowed us to identify a unique structural modification that results in significant increases in the drug-target residence times of all EZH2 inhibitor scaffolds we have studied. The unexpected residence time enhancement bestowed by this modification has enabled us to create a series of second-generation EZH2 inhibitors with sub-pM binding affinities. We provide both biophysical evidence validating this sub-pM potency and biological evidence demonstrating the utility and relevance of such high-affinity interactions with EZH2.
Identifiants
pubmed: 33524394
pii: S0021-9258(21)00121-6
doi: 10.1016/j.jbc.2021.100349
pmc: PMC7949150
pii:
doi:
Substances chimiques
Enzyme Inhibitors
0
Small Molecule Libraries
0
EZH2 protein, human
EC 2.1.1.43
Enhancer of Zeste Homolog 2 Protein
EC 2.1.1.43
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
100349Informations de copyright
Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Conflict of interest The authors declare that they have no conflicts of interest with the contents of this article.