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Exploration of thiaheterocyclic hHDAC6 inhibitors as potential antiplasmodial agents

Authors
  • De Vreese, Rob
  • de Kock, Carmen
  • Smith, Peter J
  • Chibale, Kelly
  • D'hooghe, Matthias
Publication Date
Jan 01, 2017
Source
Ghent University Institutional Archive
Keywords
Language
English
License
Unknown
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Abstract

Aim: The recurring resistance of the malaria parasite to many drugs compels the design of innovative chemical entities in antimalarial research. Pan- histone deacetylase inhibitors (pan-HDACis) have recently been presented in the literature as powerful novel antimalarials, although their application is hampered due to toxic side effects. This drawback might be neutralized by the deployment of isoformselective HDACis. Results: In this study, 42 thiaheterocyclic benzohydroxamic acids, 17 of them being potent and selective hHDAC6 inhibitors, were tested to investigate a possible correlation between hHDAC6 inhibition and antiplasmodial activity. Conclusion: Four hHDAC6 inhibitors showed submicromolar potency against both a chloroquine- sensitive and a chloroquine-resistant strain of Plasmodium falciparum with high selectivity indices, pointing to the relevance of exploring hHDAC6 inhibitors as potential new antiplasmodial agents.

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