Identification of SENP1 inhibitors through in silico screening and rational drug design

Eur J Med Chem. 2016 Oct 21:122:178-184. doi: 10.1016/j.ejmech.2016.06.018. Epub 2016 Jun 14.

Abstract

The small ubiquitin-related modifier (SUMO)-specific proteases (SENPs) catalyze the deconjugation of SUMO from their substrate proteins. SENP1 which is the most studied isoform is closely related to many cancers such as prostate cancer and colon cancer, thus representing a potential therapeutic target for cancer treatment. In the present study, we identified eleven SENP1 inhibitors representing a variety of scaffolds through in silico screening. Based on these scaffolds, a series of new compounds were designed and synthesized in order to improve their SENP1 inhibitory potency. As a result, compounds with IC50 as low as 3.5 μM (compound 13m) were obtained and a preliminary structure-activity relationship was discussed.

Keywords: Cancer; In silico screening; Rational design; SENP1 inhibitor.

MeSH terms

  • Computer Simulation*
  • Drug Design*
  • Drug Evaluation, Preclinical
  • Endopeptidases / metabolism*
  • Inhibitory Concentration 50
  • Protease Inhibitors / chemistry
  • Protease Inhibitors / pharmacology*
  • Structure-Activity Relationship

Substances

  • Protease Inhibitors
  • Endopeptidases