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Updated: May 31, 2025

Kinase Inhibitor Screening In Self-assembled Human Protein Microarrays
Published on: October 23, 2019
Structure-Based Rational Design and Evaluation of BET-Aurora Kinase Dual-Inhibitors for Treatment of Cancers
Kaikai Lyu1,2, Ying Ren3, Jie Mou3
1Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
Abstract:
Simultaneous inhibition of the bromodomain and extra-terminal domain and Aurora kinases is a promising anticancer therapeutic strategy. Based on our previous study on BET-kinase dual inhibitors, we employed the molecular docking approach to design novel dual BET-Aurora kinase A inhibitors. Through several rounds of optimization and with the guidance of the solved cocrystal structure of BRD4 bound to inhibitor 27, we finally obtained a series of highly potent dual BET-Aurora kinase A inhibitors. Compound 38 exhibited strong affinity toward both BRD4 and Aurora kinase A. It also showed good antiproliferative activities on diverse cancer cell lines, good pharmacokinetic profiles, and favorable antitumor efficacy in renal cell cancer and colon cancer xenograft models with TGI of 45.99% and 53.06%, respectively. The development of compound 38 reinforces the concept that a rational design may achieve dual inhibitors targeting specific kinases and bromodomain proteins.
Insights
Researchers designed novel dual inhibitors targeting bromodomain and extra-terminal domain (BET) and Aurora kinase A. Compound 38 demonstrated potent anticancer activity in preclinical models, reinforcing rational drug design for kinase and bromodomain targets.
Area of Science:
- Oncology
- Medicinal Chemistry
- Molecular Biology
Background:
- Simultaneous inhibition of bromodomain and extra-terminal domain (BET) and Aurora kinases presents a promising strategy for cancer therapy.
- Previous research on BET-kinase dual inhibitors informed the current investigation.
Purpose of the Study:
- To design novel dual inhibitors targeting both BET and Aurora kinase A using molecular docking.
- To optimize and identify potent dual inhibitors with potential therapeutic applications.
Main Methods:
- Employed molecular docking to design dual BET-Aurora kinase A inhibitors.
- Utilized cocrystal structure of BRD4 bound to inhibitor 27 for guidance during optimization.
- Evaluated compound affinity, antiproliferative activity, pharmacokinetic profiles, and in vivo antitumor efficacy.
Main Results:
- A series of highly potent dual BET-Aurora kinase A inhibitors were successfully designed and obtained.
- Compound 38 displayed strong affinity for both BRD4 and Aurora kinase A.
- Compound 38 exhibited significant antiproliferative effects, favorable pharmacokinetics, and antitumor efficacy in renal cell and colon cancer xenograft models (TGI of 45.99% and 53.06%, respectively).
Conclusions:
- Rational design can achieve dual inhibitors targeting specific kinases and bromodomain proteins.
- Compound 38 represents a promising candidate for further development in cancer therapy.
- The study validates the therapeutic potential of simultaneous BET and Aurora kinase inhibition.
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