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Diverse Clinical Isolates of Mycobacterium tuberculosis Develop Macrophage-Induced Rifampin Tolerance.

Accepted version
Peer-reviewed

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Authors

Adams, Kristin N 
Verma, Amit Kumar 
Gopalaswamy, Radha 
Adikesavalu, Harresh 
Singhal, Dinesh Kumar 

Abstract

The Mycobacterium tuberculosis lineage 4 strains CDC1551 and H37Rv develop tolerance to multiple antibiotics upon macrophage residence. To determine whether macrophage-induced tolerance is a general feature of clinical M. tuberculosis isolates, we assessed macrophage-induced drug tolerance in strains from lineages 1-3, representing the other predominant M. tuberculosis strains responsible for tuberculosis globally. All 3 lineages developed isoniazid tolerance. While lineage 1, 3, and 4 strains developed rifampin tolerance, lineage 2 Beijing strains did not. Their failure to develop tolerance may be explained by their harboring of a loss-of-function mutation in the Rv1258c efflux pump that is linked to macrophage-induced rifampicin tolerance.

Description

Keywords

Rv1258c, Beijing lineage, Tuberculosis, antibiotic tolerance, drug efflux, ATP-Binding Cassette Transporters, Antitubercular Agents, Bacterial Proteins, Drug Resistance, Multiple, Bacterial, Humans, Isoniazid, Loss of Function Mutation, Macrophages, Microbial Sensitivity Tests, Mycobacterium tuberculosis, Rifampin, THP-1 Cells, Tuberculosis, Multidrug-Resistant

Journal Title

J Infect Dis

Conference Name

Journal ISSN

0022-1899
1537-6613

Volume Title

219

Publisher

Oxford University Press (OUP)
Sponsorship
Wellcome Trust (103950/Z/14/Z)
Medical Research Council (MR/N501864/1)
National Institutes of Health (NIH) (7R37A1054503-13)