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.

PubMed

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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