- Molecular Typing of Mycobacterium intracellulare Using Pulsed-Field Gel Electrophoresis, Variable-Number Tandem-Repeat Analysis, Mycobacteria Interspersed Repetitive-Unit-Variable-Number Tandem Repeat Typing, and Multilocus Sequence Typing: Molecular Characterization and Comparison of Each Typing Methods
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Semi Jeon, Nara Lim, Seungjik Kwon, Taesun Shim, Misun Park, Bum-Joon Kim, Seonghan Kim
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Osong Public Health Res Perspect. 2014;5(3):119-130. Published online June 30, 2014
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DOI: https://doi.org/10.1016/j.phrp.2014.04.003
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 Abstract
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- Objectives
Mycobacterium intracellulare is the major causative agent of nontuberculous mycobacteria-related pulmonary infections. The strain typing of M. intracellulare is important for the treatment and control of its infections. We compared the discrimination capacity and effective value of four different molecular typing methods.
Methods
Antibiotic susceptibility testing, hsp65 and rpoB sequencing, pulsed-field gel electrophoresis (PFGE), multilocus sequence typing (MLST), mycobacteria interspersed repetitive-unit-variable-number tandem-repeat analysis (MIRU-VNTR), and VNTR assay targeting 44 M. intracellulare isolates obtained from patients with pulmonary infections were performed.
Results
All the antibiotic susceptibility patterns had no association with the molecular and sequence types tested in this study; however, the molecular and sequence types were related with each other. PFGE gave best results for discriminatory capacity, followed by VNTR, MLST, and MIRU-VNTR.
Conclusion
The high discriminatory power of PFGE, VNTR, and MLST is enough for differentiating between reinfection and relapse, as well as for other molecular epidemiological usages. The MLST could be regarded as a representative classification method, because it showed the clearest relation with the sequence types.
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Citations
Citations to this article as recorded by  - Differential Genotyping of Mycobacterium avium Complex and Its Implications in Clinical and Environmental Epidemiology
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Molecular Biology Reports.2020; 47(5): 3397. CrossRef - Comparative Evaluation of Band-Based Genotyping Methods for Mycobacterium intracellulare and Its Application for Epidemiological Analysis
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Scientific Reports.2018;[Epub] CrossRef -
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