Identification of genetic determinants of bedaquiline resistance in Mycobacterium tuberculosis in Ural region, Russia

Identification of genetic determinants of bedaquiline resistance in Mycobacterium tuberculosis in Ural region, Russia

ABSTRACTCollecting data on rare Mycobacterium tuberculosis (Mtb) clinical isolates with resistance to the new anti-tuberculosis drug bedaquiline is an important task for improving antimicrobial susceptibility testing methods. Nanopore whole genome sequencing, the proportion method on Middlebrook 7H1...

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Bibliographic Details
Main Authors: Tatiana Umpeleva, Elena Chetverikova, Danila Belyaev, Natalya Eremeeva, Tatiana Boteva, Ludmila Golubeva, Diana Vakhrusheva, Irina Vasilieva
Format: Article
Language:English
Published: American Society for Microbiology 2024-03-01
Series:Microbiology Spectrum
Subjects:
M. tuberculosis
mutations
bedaquiline
nanopore sequencing
drug susceptibility testing
Online Access:https://journals.asm.org/doi/10.1128/spectrum.03749-23
Description
Summary:ABSTRACTCollecting data on rare Mycobacterium tuberculosis (Mtb) clinical isolates with resistance to the new anti-tuberculosis drug bedaquiline is an important task for improving antimicrobial susceptibility testing methods. Nanopore whole genome sequencing, the proportion method on Middlebrook 7H11 medium, and BACTEC MGIT 960 assays were used to analyze genotypic and phenotypic resistance to bedaquiline. We found four mutations: atpE I66M, atpE А63Р, Rv0678 А36Т, and Rv0678 S53P in five isolates with different levels of phenotypic bedaquiline resistance.IMPORTANCEBedaquiline (BDQ) is a new anti-tuberculosis drug. The phenotypic and genotypic data describing the mechanism of drug resistance are critical for the design of rapid and accurate diagnostic tests. We consider that our work, which describes genotypic and phenotypic resistance to BDQ, can contribute to the standardization of drug susceptibility testing.
ISSN:2165-0497

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