Synthetic Lethality in Pancreatic Cancer: Discovery of a New RAD51-BRCA2 Small Molecule Disruptor That Inhibits Homologous Recombination and Synergizes with Olaparib
摘要:
Synthetic lethality is an innovative framework for discovering novel anticancer drug candidates. One example is the use of PARP inhibitors (PARPi) in oncology patients with BRCA mutations. Here, we exploit a new paradigm based on the possibility of triggering synthetic lethality using only small organic molecules (dubbed "fully small-molecule-induced synthetic lethality"). We exploited this paradigm to target pancreatic cancer, one of the major unmet needs in oncology. We discovered a dihydroquinolone pyrazoline-based molecule (35d) that disrupts the RAD51-BRCA2 protein-protein interaction, thus mimicking the effect of BRCA2 mutation. 35d inhibits the homologous recombination in a human pancreatic adenocarcinoma cell line. In addition, it synergizes with olaparib (a PARPi) to trigger synthetic lethality. This strategy aims to widen the use of PARPi in BRCA-competent and olaparib-resistant cancers, making fully small-molecule-induced synthetic lethality an innovative approach toward unmet oncological needs.
[EN] PYRAZOLINE DIHYDROQUINOLONES, PHARMACEUTICAL COMPOSITIONS, AND USES<br/>[FR] PYRAZOLINE DIHYDROQUINOLONES, COMPOSITIONS PHARMACEUTIQUES ET UTILISATIONS
申请人:UNIV EMORY
公开号:WO2014210456A1
公开(公告)日:2014-12-31
This disclosure relates to pyrazoline dihydroquinolone derivatives, pharmaceutical compositions, and uses. In certain embodiments, the compounds are selective NMDA receptor inhibitors and are useful in therapeutic methods related thereto. In certain embodiments, this disclosure relates to pharmaceutical compositions comprising a compound of the following formula: Formula (I) or salts, esters, or prodrugs thereof, as provided herein.
Pyrazoline dihydroquinolones, pharmaceutical compositions, and uses
申请人:Emory University
公开号:US11117882B2
公开(公告)日:2021-09-14
This disclosure relates to pyrazoline dihydroquinolone derivatives, pharmaceutical compositions, and uses. In certain embodiments, the compounds are selective NMDA receptor inhibitors and are useful in therapeutic methods related thereto. In certain embodiments, this disclosure relates to pharmaceutical compositions comprising a compound of the following formula:
or salts, esters, or prodrugs thereof, as provided herein.
Structure–Activity Relationships and Pharmacophore Model of a Noncompetitive Pyrazoline Containing Class of GluN2C/GluN2D Selective Antagonists
作者:Timothy M. Acker、Alpa Khatri、Katie M. Vance、Cathryn Slabber、John Bacsa、James P. Snyder、Stephen F. Traynelis、Dennis C. Liotta
DOI:10.1021/jm400652r
日期:2013.8.22
Here we describe the synthesis and structure-activity relationship for a class of pyrazoline-containing dihydroquinolone negative allosteric modulators of the NMDA receptor that show strong subunit selectivity for GluN2C- and GluN2D-containing receptors over GluN2A- and GluN2B-containing receptors. Several members of this class inhibit NMDA receptor responses in the nanomolar range and are more than 50-fold selective over GluN1/GluN2A and GluN1/GluN2B NMDA receptors, as well as AMPA, kainate, GABA, glycine, nicotinic, serotonin, and purinergic receptors. Analysis of the purified enantiomers of one of the more potent and selective compounds shows that the S-enantiomer is both more potent and more selective than the R-enantiomer. The S-enantiomer had an IC50 of 0.17-0.22 mu M at GluN2D- and GluN2C-containing receptors, respectively, and showed over 70-fold selectivity over other NMDA receptor subunits. The subunit selectivity of this class of compounds should be useful in defining the role of GluN2C- and GluN2D-containing receptors in specific brain circuits in both physiological and pathophysiological conditions.
Pyrazoline Dihydroquinolones, Pharmaceutical Compositions, and Uses
申请人:EMORY UNIVERSITY
公开号:US20160368897A1
公开(公告)日:2016-12-22
This disclosure relates to pyrazoline dihydroquinolone derivates, pharmaceutical compositions, and uses. In certain embodiments, the compounds are selective NMDA receptor inhibitors and are useful in therapeutic methods related thereto. In certain embodiments, this disclosure relates to pharmaceutical compositions comprising a compound of the following formula: Formula (I) or salts, esters, or prodrugs thereof, as provided herein.
Synthetic Lethality in Pancreatic Cancer: Discovery of a New RAD51-BRCA2 Small Molecule Disruptor That Inhibits Homologous Recombination and Synergizes with Olaparib
作者:Greta Bagnolini、Domenico Milano、Marcella Manerba、Fabrizio Schipani、Jose Antonio Ortega、Dario Gioia、Federico Falchi、Andrea Balboni、Fulvia Farabegoli、Francesca De Franco、Janet Robertson、Roberto Pellicciari、Isabella Pallavicini、Sebastiano Peri、Saverio Minucci、Stefania Girotto、Giuseppina Di Stefano、Marinella Roberti、Andrea Cavalli
DOI:10.1021/acs.jmedchem.9b01526
日期:2020.3.12
Synthetic lethality is an innovative framework for discovering novel anticancer drug candidates. One example is the use of PARP inhibitors (PARPi) in oncology patients with BRCA mutations. Here, we exploit a new paradigm based on the possibility of triggering synthetic lethality using only small organic molecules (dubbed "fully small-molecule-induced synthetic lethality"). We exploited this paradigm to target pancreatic cancer, one of the major unmet needs in oncology. We discovered a dihydroquinolone pyrazoline-based molecule (35d) that disrupts the RAD51-BRCA2 protein-protein interaction, thus mimicking the effect of BRCA2 mutation. 35d inhibits the homologous recombination in a human pancreatic adenocarcinoma cell line. In addition, it synergizes with olaparib (a PARPi) to trigger synthetic lethality. This strategy aims to widen the use of PARPi in BRCA-competent and olaparib-resistant cancers, making fully small-molecule-induced synthetic lethality an innovative approach toward unmet oncological needs.