Mechanism of Action of 5-Nitrothiophenes against Mycobacterium tuberculosis

On using the streptomycin-starved 18b strain as a model for nonreplicating Mycobacterium tuberculosis, we identified a 5-nitrothiophene compound as highly active but not cytotoxic. Mutants resistant to 5-nitrothiophenes were found be cross-resistant to the nitroimidazole PA-824 and unable to produce the F-420 cofactor. Furthermore, 5-nitrothiophenes were shown to be activated by the F-420-dependent nitroreductase Ddn and to release nitric oxide, a mechanism of action identical to that described for nitroimidazoles.


Published in:
Antimicrobial Agents And Chemotherapy, 58, 5, 2944-2947
Year:
2014
Publisher:
Washington, Amer Soc Microbiology
ISSN:
0066-4804
Laboratories:




 Record created 2014-05-26, last modified 2018-03-17


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