Design, synthesis, and biological evaluation of benzodiazepine-based SUMO-specific protease 1 inhibitors

Bioorg Med Chem Lett. 2011 Nov 1;21(21):6389-92. doi: 10.1016/j.bmcl.2011.08.101. Epub 2011 Sep 1.

Abstract

As the best-characterized ubiquitin-like protein (UBL), small ubiquitin-related modifier (SUMO) was found to conjugate with a number of proteins to regulate cellular functions including transcription, signal transduction, and cell cycle. While E1, E2 and E3 ligases are responsible for the forward SUMOylation reaction, SUMO-specific proteases (SENPs) reversibly remove SUMO from the SUMOylated proteins. Recently, SENP1 was found to be a potential therapeutic target for the treatment of prostate cancers, but the design and synthesis of its inhibitors have not been reported. We designed and synthesized a series of benzodiazepine-based SENP1 inhibitors, and they showed inhibitory activity as good as IC(50)=9.2μM (compound 38). The structure-activity relationship was also discussed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Line, Tumor
  • Drug Design*
  • Drug Evaluation, Preclinical
  • Electrophoresis, Polyacrylamide Gel
  • Humans
  • Hydrogen Bonding
  • Inhibitory Concentration 50
  • Models, Molecular
  • Protease Inhibitors / chemical synthesis*
  • Protease Inhibitors / chemistry
  • Protease Inhibitors / pharmacology*
  • Small Ubiquitin-Related Modifier Proteins / metabolism*

Substances

  • Protease Inhibitors
  • Small Ubiquitin-Related Modifier Proteins