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Tolerance and Persistence to Drugs: A Main Challenge in the Fight Against Mycobacterium tuberculosis

The treatment of tuberculosis is extremely long. One of the reasons why Mycobacterium tuberculosis elimination from the organism takes so long is that in particular environmental conditions it can become tolerant to drugs and/or develop persisters able to survive killing even from very high drug con...

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Autores principales: Boldrin, Francesca, Provvedi, Roberta, Cioetto Mazzabò, Laura, Segafreddo, Greta, Manganelli, Riccardo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7479264/
https://www.ncbi.nlm.nih.gov/pubmed/32983003
http://dx.doi.org/10.3389/fmicb.2020.01924
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author Boldrin, Francesca
Provvedi, Roberta
Cioetto Mazzabò, Laura
Segafreddo, Greta
Manganelli, Riccardo
author_facet Boldrin, Francesca
Provvedi, Roberta
Cioetto Mazzabò, Laura
Segafreddo, Greta
Manganelli, Riccardo
author_sort Boldrin, Francesca
collection PubMed
description The treatment of tuberculosis is extremely long. One of the reasons why Mycobacterium tuberculosis elimination from the organism takes so long is that in particular environmental conditions it can become tolerant to drugs and/or develop persisters able to survive killing even from very high drug concentrations. Tolerance develops in response to a harsh environment exposure encountered by bacteria during infection, mainly due to the action of the immune system, whereas persistence results from the presence of heterogeneous bacterial populations with different degrees of drug sensitivity, and can be induced by exposure to stress conditions. Here, we review the actual knowledge on the stress response mechanisms enacted by M. tuberculosis during infection, which leads to increased drug tolerance or development of a highly drug-resistant subpopulation.
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spelling pubmed-74792642020-09-26 Tolerance and Persistence to Drugs: A Main Challenge in the Fight Against Mycobacterium tuberculosis Boldrin, Francesca Provvedi, Roberta Cioetto Mazzabò, Laura Segafreddo, Greta Manganelli, Riccardo Front Microbiol Microbiology The treatment of tuberculosis is extremely long. One of the reasons why Mycobacterium tuberculosis elimination from the organism takes so long is that in particular environmental conditions it can become tolerant to drugs and/or develop persisters able to survive killing even from very high drug concentrations. Tolerance develops in response to a harsh environment exposure encountered by bacteria during infection, mainly due to the action of the immune system, whereas persistence results from the presence of heterogeneous bacterial populations with different degrees of drug sensitivity, and can be induced by exposure to stress conditions. Here, we review the actual knowledge on the stress response mechanisms enacted by M. tuberculosis during infection, which leads to increased drug tolerance or development of a highly drug-resistant subpopulation. Frontiers Media S.A. 2020-08-26 /pmc/articles/PMC7479264/ /pubmed/32983003 http://dx.doi.org/10.3389/fmicb.2020.01924 Text en Copyright © 2020 Boldrin, Provvedi, Cioetto Mazzabò, Segafreddo and Manganelli. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Boldrin, Francesca
Provvedi, Roberta
Cioetto Mazzabò, Laura
Segafreddo, Greta
Manganelli, Riccardo
Tolerance and Persistence to Drugs: A Main Challenge in the Fight Against Mycobacterium tuberculosis
title Tolerance and Persistence to Drugs: A Main Challenge in the Fight Against Mycobacterium tuberculosis
title_full Tolerance and Persistence to Drugs: A Main Challenge in the Fight Against Mycobacterium tuberculosis
title_fullStr Tolerance and Persistence to Drugs: A Main Challenge in the Fight Against Mycobacterium tuberculosis
title_full_unstemmed Tolerance and Persistence to Drugs: A Main Challenge in the Fight Against Mycobacterium tuberculosis
title_short Tolerance and Persistence to Drugs: A Main Challenge in the Fight Against Mycobacterium tuberculosis
title_sort tolerance and persistence to drugs: a main challenge in the fight against mycobacterium tuberculosis
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7479264/
https://www.ncbi.nlm.nih.gov/pubmed/32983003
http://dx.doi.org/10.3389/fmicb.2020.01924
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