Metagenomic next-generation sequencing assistance in identifying non-tuberculous mycobacterial infections

IntroductionThe advent of metagenomics next-generation sequencing (mNGS) has garnered attention as a novel method for detecting pathogenic infections, including Non-Tuberculous Mycobacterial (NTM) and tuberculosis (TB).However, the robustness and specificity of mNGS in NTM diagnostics have not been...

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Main Authors: Shilei Wang, Lihua Xing
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-08-01
Series:Frontiers in Cellular and Infection Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcimb.2023.1253020/full
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author Shilei Wang
Lihua Xing
author_facet Shilei Wang
Lihua Xing
author_sort Shilei Wang
collection DOAJ
description IntroductionThe advent of metagenomics next-generation sequencing (mNGS) has garnered attention as a novel method for detecting pathogenic infections, including Non-Tuberculous Mycobacterial (NTM) and tuberculosis (TB).However, the robustness and specificity of mNGS in NTM diagnostics have not been fully explored.MethodsIn this retrospective study, we enrolled 27 patients with NTM genomic sequences via mNGS and conducted a comprehensive clinical evaluation.ResultsPulmonary NTM disease was the most commonly observed presentation, with a subset of patients also presenting with extrapulmonary NTM infections.mNGS analysis identified six distinct NTM species, primarily Mycobacteriumavium complex (MAC), followed by Mycobacterium intracellulare andMycobacterium abscessus. Conventional routine culture methods encountered challenges, resulting in negative results for all available 22 samples. Among the 10 patients who underwent quantitative polymerase chain reaction (qPCR) testing, five tested positive for NTM.DiscussionIt is important to note that further species typing is necessary to determine the specific NTM type, as traditional pathogen detection methods serve as an initial step. In contrast, when supplemented with pathogen data, enables the identification of specific species, facilitating precise treatment decisions. In conclusion, mNGS demonstrates significant potential in aidingthe diagnosis of NTMdisease by rapidly detecting NTM pathogens and guiding treatment strategies. Its enhanced performance, faster turnaround time (TAT), and species identification capabilities make mNGS a promising tool for managing NTM infections.
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spelling doaj.art-4ba11063b5a042e2bc89b2eaa93ee18b2023-08-31T09:18:59ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882023-08-011310.3389/fcimb.2023.12530201253020Metagenomic next-generation sequencing assistance in identifying non-tuberculous mycobacterial infectionsShilei WangLihua XingIntroductionThe advent of metagenomics next-generation sequencing (mNGS) has garnered attention as a novel method for detecting pathogenic infections, including Non-Tuberculous Mycobacterial (NTM) and tuberculosis (TB).However, the robustness and specificity of mNGS in NTM diagnostics have not been fully explored.MethodsIn this retrospective study, we enrolled 27 patients with NTM genomic sequences via mNGS and conducted a comprehensive clinical evaluation.ResultsPulmonary NTM disease was the most commonly observed presentation, with a subset of patients also presenting with extrapulmonary NTM infections.mNGS analysis identified six distinct NTM species, primarily Mycobacteriumavium complex (MAC), followed by Mycobacterium intracellulare andMycobacterium abscessus. Conventional routine culture methods encountered challenges, resulting in negative results for all available 22 samples. Among the 10 patients who underwent quantitative polymerase chain reaction (qPCR) testing, five tested positive for NTM.DiscussionIt is important to note that further species typing is necessary to determine the specific NTM type, as traditional pathogen detection methods serve as an initial step. In contrast, when supplemented with pathogen data, enables the identification of specific species, facilitating precise treatment decisions. In conclusion, mNGS demonstrates significant potential in aidingthe diagnosis of NTMdisease by rapidly detecting NTM pathogens and guiding treatment strategies. Its enhanced performance, faster turnaround time (TAT), and species identification capabilities make mNGS a promising tool for managing NTM infections.https://www.frontiersin.org/articles/10.3389/fcimb.2023.1253020/fullmNGS (metagenomic next-generation sequencing)NTM (nontuberculous mycobacteria)diagnosisprognosisculture
spellingShingle Shilei Wang
Lihua Xing
Metagenomic next-generation sequencing assistance in identifying non-tuberculous mycobacterial infections
Frontiers in Cellular and Infection Microbiology
mNGS (metagenomic next-generation sequencing)
NTM (nontuberculous mycobacteria)
diagnosis
prognosis
culture
title Metagenomic next-generation sequencing assistance in identifying non-tuberculous mycobacterial infections
title_full Metagenomic next-generation sequencing assistance in identifying non-tuberculous mycobacterial infections
title_fullStr Metagenomic next-generation sequencing assistance in identifying non-tuberculous mycobacterial infections
title_full_unstemmed Metagenomic next-generation sequencing assistance in identifying non-tuberculous mycobacterial infections
title_short Metagenomic next-generation sequencing assistance in identifying non-tuberculous mycobacterial infections
title_sort metagenomic next generation sequencing assistance in identifying non tuberculous mycobacterial infections
topic mNGS (metagenomic next-generation sequencing)
NTM (nontuberculous mycobacteria)
diagnosis
prognosis
culture
url https://www.frontiersin.org/articles/10.3389/fcimb.2023.1253020/full
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