PUBLICATION

β-CA-specific inhibitor dithiocarbamate Fc14-584B: a novel antimycobacterial agent with potential to treat drug-resistant tuberculosis

Authors
Aspatwar, A., Hammarén, M., Koskinen, S., Luukinen, B., Barker, H., Carta, F., Supuran, C.T., Parikka, M., Parkkila, S.
ID
ZDB-PUB-170622-15
Date
2017
Source
Journal of enzyme inhibition and medicinal chemistry   32: 832-840 (Journal)
Registered Authors
Keywords
Dithiocarbamates, Mycobacterium marinum, in vivo inhibition, zebrafish embryos, β-carbonic anhydrase
MeSH Terms
  • Animals
  • Antitubercular Agents/chemical synthesis
  • Antitubercular Agents/chemistry
  • Antitubercular Agents/pharmacology*
  • Carbonic Anhydrase Inhibitors/chemical synthesis
  • Carbonic Anhydrase Inhibitors/chemistry
  • Carbonic Anhydrase Inhibitors/pharmacology*
  • Carbonic Anhydrases/metabolism*
  • Dose-Response Relationship, Drug
  • Larva/microbiology
  • Microbial Sensitivity Tests
  • Mycobacterium tuberculosis/drug effects*
  • Mycobacterium tuberculosis/enzymology
  • Mycobacterium tuberculosis/growth & development
  • Piperazines/chemical synthesis
  • Piperazines/chemistry
  • Piperazines/pharmacology*
  • Structure-Activity Relationship
  • Thiocarbamates/chemical synthesis
  • Thiocarbamates/chemistry
  • Thiocarbamates/pharmacology*
  • Tuberculosis, Multidrug-Resistant/drug therapy*
  • Zebrafish/microbiology
PubMed
28629306 Full text @ J Enzyme Inhib Med Chem
Abstract
Inhibition of novel biological pathways in Mycobacterium tuberculosis (Mtb) creates the potential for alternative approaches for treating drug-resistant tuberculosis. In vitro studies have shown that dithiocarbamate-derived β-carbonic anhydrase (β-CA) inhibitors Fc14-594 A and Fc14-584B effectively inhibit the activity of Mtb β-CA enzymes. We screened the dithiocarbamates for toxicity, and studied the in vivo inhibitory effect of the least toxic inhibitor on M. marinum in a zebrafish model. In our toxicity screening, Fc14-584B emerged as the least toxic and showed minimal toxicity in 5-day-old larvae at 300 µM concentration. In vitro inhibition of M. marinum showed that both compounds inhibited growth at a concentration of 75 µM. In vivo inhibition studies using 300 µM Fc14-584B showed significant (p > .05) impairment of bacterial growth in zebrafish larvae at 6 days post infection. Our studies highlight the therapeutic potential of Fc14-584B as a β-CA inhibitor against Mtb, and that dithiocarbamate compounds may be developed into potent anti-tuberculosis drugs.
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