Novel Cruzain Inhibitors for the Treatment of Chagas' Disease

• The protozoan parasite Trypanosoma cruzi, the etiological agent of Chagas disease, affects millions of individuals and continues to be an important global health concern. The poor efficacy and unfavorable side effects of current treatments necessitate novel therapeutics. Cruzain, the major cysteine protease of T.similar to cruzi, is one potential novel target. Recent advances in a class of vinyl sulfone inhibitors are encouraging; however, as most potential therapeutics fail in clinical trials and both disease progression and resistance call for combination therapy with several drugs, the identification of additional classes of inhibitory molecules is essential. Using an exhaustive virtual-screening and experimental validation approach, we identify several additional small-molecule cruzain inhibitors. Further optimization of these chemical scaffolds could lead to the development of novel drugs useful in the treatment of Chagas disease.

Keyword

Chagas' disease

computer-aided drug discovery

cruzain

cruzipain

cysteine protease inhibitor

Trypanosoma cruzi

Publication and Content Type

ref (subject category)

art (subject category)