Application of computer-aided drug repurposing in the search of new cruzipain inhibitors: discovery of amiodarone and bromocriptine inhibitory effects

J Chem Inf Model. 2013 Sep 23;53(9):2402-8. doi: 10.1021/ci400284v. Epub 2013 Aug 16.

Abstract

Cruzipain (Cz) is the major cystein protease of the protozoan Trypanosoma cruzi , etiological agent of Chagas disease. From a 163 compound data set, a 2D-classifier capable of identifying Cz inhibitors was obtained and applied in a virtual screening campaign on the DrugBank database, which compiles FDA-approved and investigational drugs. Fifty-four approved drugs were selected as candidates, four of which were acquired and tested on Cz and T. cruzi epimastigotes. Among them, the antiparkinsonian and antidiabetic drug bromocriptine and the antiarrhythmic amiodarone showed dose-dependent inhibition of Cz and antiproliferative activity on the parasite.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amiodarone / pharmacology*
  • Bromocriptine / pharmacology*
  • Computer-Aided Design*
  • Cysteine Endopeptidases / metabolism*
  • Cysteine Proteinase Inhibitors / pharmacology*
  • Drug Repositioning / methods*
  • Protozoan Proteins
  • Trypanosoma cruzi / drug effects
  • Trypanosoma cruzi / enzymology
  • Trypanosoma cruzi / growth & development

Substances

  • Cysteine Proteinase Inhibitors
  • Protozoan Proteins
  • Bromocriptine
  • Cysteine Endopeptidases
  • cruzipain
  • Amiodarone