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LipF increases rifampicin and streptomycin sensitivity in a Mycobacterium tuberculosis surrogate.


ABSTRACT: BACKGROUND:Mortality due to tuberculosis (TB) has increased due to the development of drug resistance, the mechanisms of which have not been fully elucidated. Our research group identified a low expression of lipF gene in Mycobacterium tuberculosis clinical isolates with drug resistance. The aim of this work was to evaluate the effect of lipase F (LipF) expression on mycobacterial drug resistance. RESULTS:The effects of expressing lipF from Mycobacterium tuberculosis in Mycobacterium smegmatis on resistance to antituberculosis drugs were determined with resazurin microtiter assay plate and growth kinetics. Functionality of ectopic LipF was confirmed. LipF expression reduced the rifampicin (RIF) and streptomycin (STR) minimum inhibitory concentration (MIC) from 3.12??g/mL to 1.6??g/mL and 0.25??g/mL to 0.06??g/mL respectively, moreover a reduced M. smegmatis growth in presence of RIF and STR compared with that of a control strain without LipF expression (p?

SUBMITTER: Arriaga-Guerrero AL 

PROVIDER: S-EPMC7249682 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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<h4>Background</h4>Mortality due to tuberculosis (TB) has increased due to the development of drug resistance, the mechanisms of which have not been fully elucidated. Our research group identified a low expression of lipF gene in Mycobacterium tuberculosis clinical isolates with drug resistance. The aim of this work was to evaluate the effect of lipase F (LipF) expression on mycobacterial drug resistance.<h4>Results</h4>The effects of expressing lipF from Mycobacterium tuberculosis in Mycobacter  ...[more]

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