Structure-based design and discovery of potent and selective KDM5 inhibitors

Bioorg Med Chem Lett. 2018 May 15;28(9):1490-1494. doi: 10.1016/j.bmcl.2018.03.083. Epub 2018 Mar 30.

Abstract

Histone lysine demethylases (KDMs) play a key role in epigenetic regulation and KDM5A and KDM5B have been identified as potential anti-cancer drug targets. Using structural information from known KDM4 and KDM5 inhibitors, a potent series of pyrazolylpyridines was designed. Structure-activity relationship (SAR) exploration resulted in the identification of compound 33, an orally available, potent inhibitor of KDM5A/5B with promising selectivity. Potent cellular inhibition as measured by levels of tri-methylated H3K4 was demonstrated with compound 33 in the breast cancer cell line ZR-75-1.

Keywords: Epigenetics; Histone lysine demethylase; KDM5; Structure-based design; Tri-methylated H3K4.

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Dose-Response Relationship, Drug
  • Drug Discovery*
  • Drug Screening Assays, Antitumor
  • Enzyme Inhibitors / chemical synthesis
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology*
  • Female
  • Humans
  • Jumonji Domain-Containing Histone Demethylases / antagonists & inhibitors*
  • Jumonji Domain-Containing Histone Demethylases / metabolism
  • MCF-7 Cells
  • Mammary Neoplasms, Experimental / drug therapy
  • Mammary Neoplasms, Experimental / pathology
  • Models, Molecular
  • Molecular Structure
  • Nuclear Proteins / antagonists & inhibitors*
  • Nuclear Proteins / metabolism
  • Repressor Proteins / antagonists & inhibitors*
  • Repressor Proteins / metabolism
  • Retinoblastoma-Binding Protein 2 / antagonists & inhibitors*
  • Retinoblastoma-Binding Protein 2 / metabolism
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents
  • Enzyme Inhibitors
  • Nuclear Proteins
  • Repressor Proteins
  • Jumonji Domain-Containing Histone Demethylases
  • KDM5A protein, human
  • KDM5B protein, human
  • Retinoblastoma-Binding Protein 2