Bromodomain-Selective BET Inhibitors Are Potent Antitumor Agents against MYC-Driven Pediatric Cancer - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Cancer Research Année : 2020

Bromodomain-Selective BET Inhibitors Are Potent Antitumor Agents against MYC-Driven Pediatric Cancer

, , , , , (1) , , , , , , , , , , , , , , , (2, 3) , , (4, 5) , , , , , , ,
1
2
3
4
5
P. Jake Slavish
  • Fonction : Auteur
Liying Chi
  • Fonction : Auteur
Mi-Kyung Yun
  • Fonction : Auteur
Lyudmila Tsurkan
  • Fonction : Auteur
Nancy E. Martinez
  • Fonction : Auteur
Sergio C. Chai
  • Fonction : Auteur
Michele Connelly
  • Fonction : Auteur
M. Brett Waddell
  • Fonction : Auteur
Sourav Das
  • Fonction : Auteur
Geoffrey Neale
  • Fonction : Auteur
Zhenmei Li
  • Fonction : Auteur
William R. Shadrick
  • Fonction : Auteur
Rachelle R. Olsen
  • Fonction : Auteur
Kevin W. Freeman
  • Fonction : Auteur
Jonathan A. Low
  • Fonction : Auteur
Jeanine E. Price
  • Fonction : Auteur
Brandon M. Young
  • Fonction : Auteur
Nagakumar Bharatham
  • Fonction : Auteur
Vincent A. Boyd
  • Fonction : Auteur
Richard E. Lee
  • Fonction : Auteur
Martine F. Roussel
  • Fonction : Auteur
  • PersonId : 1157726
Taosheng Chen
  • Fonction : Auteur
Daniel Savic
  • Fonction : Auteur
R. Kiplin Guy
  • Fonction : Auteur
Stephen W. White
  • Fonction : Auteur
Anang A. Shelat
  • Fonction : Auteur
Philip M. Potter
  • Fonction : Auteur

Résumé

Inhibition of members of the bromodomain and extraterminal (BET) family of proteins has proven a valid strategy for cancer chemotherapy. All BET identified to date contain two bromodomains (BD; BD1 and BD2) that are necessary for recognition of acetylated lysine residues in the N-terminal regions of histones. Chemical matter that targets BET (BETi) also interact via these domains. Molecular and cellular data indicate that BD1 and BD2 have different biological roles depending upon their cellular context, with BD2 particularly associated with cancer. We have therefore pursued the development of BD2-selective molecules both as chemical probes and as potential leads for drug development. Here we report the structure-based generation of a novel series of tetrahydroquinoline analogs that exhibit >50-fold selectivity for BD2 versus BD1. This selective targeting resulted in engagement with BD-containing proteins in cells, resulting in modulation of MYC proteins and downstream targets. These compounds were potent cytotoxins toward numerous pediatric cancer cell lines and were minimally toxic to nontumorigenic cells. In addition, unlike the pan BETi (+)-JQ1, these BD2-selective inhibitors demonstrated no rebound expression effects. Finally, we report a pharmacokinetic-optimized, metabolically stable derivative that induced growth delay in a neuroblastoma xenograft model with minimal toxicity. We conclude that BD2-selective agents are valid candidates for antitumor drug design for pediatric malignancies driven by the MYC oncogene. SIGNIFICANCE: This study presents bromodomain-selective BET inhibitors that act as antitumor agents and demonstrates that these molecules have in vivo activity towards neuroblastoma, with essentially no toxicity.

Dates et versions

hal-03720247 , version 1 (11-07-2022)

Identifiants

Citer

P. Jake Slavish, Liying Chi, Mi-Kyung Yun, Lyudmila Tsurkan, Nancy E. Martinez, et al.. Bromodomain-Selective BET Inhibitors Are Potent Antitumor Agents against MYC-Driven Pediatric Cancer. Cancer Research, 2020, 80 (17), pp.3507--3518. ⟨10.1158/0008-5472.CAN-19-3934⟩. ⟨hal-03720247⟩
19 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More