bedaquiline;
tuberculosis;
drug resistance;
clofazimine;
Rv0678;
DRUG-RESISTANT TUBERCULOSIS;
PHARMACOKINETICS;
D O I:
10.1128/aac.01275-23
中图分类号:
Q93 [微生物学];
学科分类号:
071005 ;
100705 ;
摘要:
Multidrug-resistant tuberculosis (MDR-TB) patients not cured at the time of stopping treatment are exposed to Minimum Inhibitory Concentration (MIC) and sub-MIC levels for many months after discontinuing bedaquiline (BDQ) or clofazimine (CFZ) treatment. In vitro cultures treated with BDQ and CFZ sub-MIC concentrations clearly showed enrichment in the Rv0678 mutant population, demonstrating that pre-existing Rv0678 mutants can be selected by sub-MIC concentrations of BDQ and CFZ if not protected by an alternative MDR-TB treatment.