Understanding anti-tuberculosis drug efficacy: rethinking bacterial populations and how we model them

Tuberculosis still remains a global health emergency, claiming 1.5 million lives in 2013. The bacterium responsible for this disease, Mycobacterium tuberculosis (M.tb), has successfully survived within hostile host environments, adapting to immune defence mechanisms, for centuries. This has resulted...

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Main Authors: Dimitrios Evangelopoulos, Joana Diniz da Fonseca, Simon J. Waddell
Format: Article
Language:English
Published: Elsevier 2015-03-01
Series:International Journal of Infectious Diseases
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1201971214017172
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author Dimitrios Evangelopoulos
Joana Diniz da Fonseca
Simon J. Waddell
author_facet Dimitrios Evangelopoulos
Joana Diniz da Fonseca
Simon J. Waddell
author_sort Dimitrios Evangelopoulos
collection DOAJ
description Tuberculosis still remains a global health emergency, claiming 1.5 million lives in 2013. The bacterium responsible for this disease, Mycobacterium tuberculosis (M.tb), has successfully survived within hostile host environments, adapting to immune defence mechanisms, for centuries. This has resulted in a disease that is challenging to treat, requiring lengthy chemotherapy with multi-drug regimens. One explanation for this difficulty in eliminating M.tb bacilli in vivo is the disparate action of antimicrobials on heterogeneous populations of M.tb, where mycobacterial physiological state may influence drug efficacy. In order to develop improved drug combinations that effectively target diverse mycobacterial phenotypes, it is important to understand how such subpopulations of M.tb are formed during human infection. We review here the in vitro and in vivo systems used to model M.tb subpopulations that may persist during drug therapy, and offer aspirations for future research in this field.
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spelling doaj.art-3ac00eb0ecac444ba2c8a920ce8165c22022-12-21T21:55:47ZengElsevierInternational Journal of Infectious Diseases1201-97121878-35112015-03-0132C768010.1016/j.ijid.2014.11.028Understanding anti-tuberculosis drug efficacy: rethinking bacterial populations and how we model themDimitrios Evangelopoulos0Joana Diniz da Fonseca1Simon J. Waddell2Centre for Clinical Microbiology, University College London, London, NW3 2PF, UKCentre for Clinical Microbiology, University College London, London, NW3 2PF, UKBrighton and Sussex Medical School, University of Sussex, Brighton, BN1 9PX, UKTuberculosis still remains a global health emergency, claiming 1.5 million lives in 2013. The bacterium responsible for this disease, Mycobacterium tuberculosis (M.tb), has successfully survived within hostile host environments, adapting to immune defence mechanisms, for centuries. This has resulted in a disease that is challenging to treat, requiring lengthy chemotherapy with multi-drug regimens. One explanation for this difficulty in eliminating M.tb bacilli in vivo is the disparate action of antimicrobials on heterogeneous populations of M.tb, where mycobacterial physiological state may influence drug efficacy. In order to develop improved drug combinations that effectively target diverse mycobacterial phenotypes, it is important to understand how such subpopulations of M.tb are formed during human infection. We review here the in vitro and in vivo systems used to model M.tb subpopulations that may persist during drug therapy, and offer aspirations for future research in this field.http://www.sciencedirect.com/science/article/pii/S1201971214017172Mycobacterium tuberculosispersistence modelssubpopulationsphenotypic drug tolerancedrug discovery
spellingShingle Dimitrios Evangelopoulos
Joana Diniz da Fonseca
Simon J. Waddell
Understanding anti-tuberculosis drug efficacy: rethinking bacterial populations and how we model them
International Journal of Infectious Diseases
Mycobacterium tuberculosis
persistence models
subpopulations
phenotypic drug tolerance
drug discovery
title Understanding anti-tuberculosis drug efficacy: rethinking bacterial populations and how we model them
title_full Understanding anti-tuberculosis drug efficacy: rethinking bacterial populations and how we model them
title_fullStr Understanding anti-tuberculosis drug efficacy: rethinking bacterial populations and how we model them
title_full_unstemmed Understanding anti-tuberculosis drug efficacy: rethinking bacterial populations and how we model them
title_short Understanding anti-tuberculosis drug efficacy: rethinking bacterial populations and how we model them
title_sort understanding anti tuberculosis drug efficacy rethinking bacterial populations and how we model them
topic Mycobacterium tuberculosis
persistence models
subpopulations
phenotypic drug tolerance
drug discovery
url http://www.sciencedirect.com/science/article/pii/S1201971214017172
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