Benzene Amide Ether Scaffold is Active against Non-replicating and Intracellular .

ACS infectious diseases
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Keywords
Abstract

New drugs to treat tuberculosis which target intractable bacterial populations are required to develop shorter and more effective treatment regimens. The benzene amide ether scaffold has activity against intracellular , but low activity against extracellular, actively replicating . We determined that these molecules have bactericidal activity against non-replicating but not actively replicating bacteria. Exposure to compounds depleted ATP levels in non-replicating bacteria and increased the oxygen consumption rate; a subset of molecules led to the accumulation of intrabacterial reactive oxygen species. A comprehensive screen of strains identified a number of under-expressing strains as more sensitive to compounds under replicating conditions including QcrA and QcrB hypomorphs. We determined the global gene expression profile after compound treatment for both replicating and nutrient-starved . We saw compound-dependent changes in the expression of genes involved in energy metabolism under both conditions. Taken together, our data suggest that the scaffold targets respiration in .

Year of Publication
2023
Journal
ACS infectious diseases
Date Published
09/2023
ISSN
2373-8227
DOI
10.1021/acsinfecdis.3c00275
PubMed ID
37708378
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