House of cellulose – a new hideout for drug tolerant Mycobacterium tuberculosis

Mycobacterium tuberculosis (Mtb) causes tuberculosis (TB). The treatment of TB requires administration of multiple drugs for long durations because of the unusual drug tolerance of Mtb. The phenotypic drug tolerance of genetically drug-susceptible Mtb in humans can be explained by its ability to for...

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Main Author: Ashwani Kumar
Format: Article
Language:English
Published: Shared Science Publishers OG 2016-06-01
Series:Microbial Cell
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Online Access:http://microbialcell.com/researcharticles/house-of-cellulose-a-new-hideout-for-drug-tolerant-mycobacterium-tuberculosis/
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author Ashwani Kumar
author_facet Ashwani Kumar
author_sort Ashwani Kumar
collection DOAJ
description Mycobacterium tuberculosis (Mtb) causes tuberculosis (TB). The treatment of TB requires administration of multiple drugs for long durations because of the unusual drug tolerance of Mtb. The phenotypic drug tolerance of genetically drug-susceptible Mtb in humans can be explained by its ability to form biofilms. Recent studies from different laboratories suggest that Mtb forms biofilms that harbour drug-tolerant bacteria. These findings have created a new area of research in the field of mycobacterial physiology. Recently, my laboratory has reported that Mtb cells organise themselves into biofilms in response to intracellular thiol reductive stress (Trivedi et al. Nature communications. 2016). Bacteria residing in these biofilms are tolerant towards antimycobacterial drugs. Cellulose is a key component of the extracellular polymeric substances that hold mycobacterial cells together in these biofilms. Here, I discuss the implications of these findings and new hypotheses arising from this study on the biology of Mtb biofilms.
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spelling doaj-art-da535d4c611846aa994fdf5a28e9c68d2025-08-20T02:57:37ZengShared Science Publishers OGMicrobial Cell2311-26382016-06-013729930110.15698/mic2016.07.515House of cellulose – a new hideout for drug tolerant Mycobacterium tuberculosisAshwani Kumar0Council of Scientific and Industrial Research, Institute of Microbial Technology, Sector 39 A, Chandigarh 160036, India.Mycobacterium tuberculosis (Mtb) causes tuberculosis (TB). The treatment of TB requires administration of multiple drugs for long durations because of the unusual drug tolerance of Mtb. The phenotypic drug tolerance of genetically drug-susceptible Mtb in humans can be explained by its ability to form biofilms. Recent studies from different laboratories suggest that Mtb forms biofilms that harbour drug-tolerant bacteria. These findings have created a new area of research in the field of mycobacterial physiology. Recently, my laboratory has reported that Mtb cells organise themselves into biofilms in response to intracellular thiol reductive stress (Trivedi et al. Nature communications. 2016). Bacteria residing in these biofilms are tolerant towards antimycobacterial drugs. Cellulose is a key component of the extracellular polymeric substances that hold mycobacterial cells together in these biofilms. Here, I discuss the implications of these findings and new hypotheses arising from this study on the biology of Mtb biofilms.http://microbialcell.com/researcharticles/house-of-cellulose-a-new-hideout-for-drug-tolerant-mycobacterium-tuberculosis/ Mycobacterium tuberculosisbiofilmscellulosedrug tolerancethiol reductive stressextracellular polymeric substance
spellingShingle Ashwani Kumar
House of cellulose – a new hideout for drug tolerant Mycobacterium tuberculosis
Microbial Cell
Mycobacterium tuberculosis
biofilms
cellulose
drug tolerance
thiol reductive stress
extracellular polymeric substance
title House of cellulose – a new hideout for drug tolerant Mycobacterium tuberculosis
title_full House of cellulose – a new hideout for drug tolerant Mycobacterium tuberculosis
title_fullStr House of cellulose – a new hideout for drug tolerant Mycobacterium tuberculosis
title_full_unstemmed House of cellulose – a new hideout for drug tolerant Mycobacterium tuberculosis
title_short House of cellulose – a new hideout for drug tolerant Mycobacterium tuberculosis
title_sort house of cellulose a new hideout for drug tolerant mycobacterium tuberculosis
topic Mycobacterium tuberculosis
biofilms
cellulose
drug tolerance
thiol reductive stress
extracellular polymeric substance
url http://microbialcell.com/researcharticles/house-of-cellulose-a-new-hideout-for-drug-tolerant-mycobacterium-tuberculosis/
work_keys_str_mv AT ashwanikumar houseofcelluloseanewhideoutfordrugtolerantmycobacteriumtuberculosis