Bioenergetic Inhibitors: Antibiotic Efficacy and Mechanisms of Action in Mycobacterium tuberculosis

Development of novel anti-tuberculosis combination regimens that increase efficacy and reduce treatment timelines will improve patient compliance, limit side-effects, reduce costs, and enhance cure rates. Such advancements would significantly improve the global TB burden and reduce drug resistance a...

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Main Authors: Erik J. Hasenoehrl, Thomas J. Wiggins, Michael Berney
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-01-01
Series:Frontiers in Cellular and Infection Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcimb.2020.611683/full
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author Erik J. Hasenoehrl
Thomas J. Wiggins
Michael Berney
author_facet Erik J. Hasenoehrl
Thomas J. Wiggins
Michael Berney
author_sort Erik J. Hasenoehrl
collection DOAJ
description Development of novel anti-tuberculosis combination regimens that increase efficacy and reduce treatment timelines will improve patient compliance, limit side-effects, reduce costs, and enhance cure rates. Such advancements would significantly improve the global TB burden and reduce drug resistance acquisition. Bioenergetics has received considerable attention in recent years as a fertile area for anti-tuberculosis drug discovery. Targeting the electron transport chain (ETC) and oxidative phosphorylation machinery promises not only to kill growing cells but also metabolically dormant bacilli that are inherently more drug tolerant. Over the last two decades, a broad array of drugs targeting various ETC components have been developed. Here, we provide a focused review of the current state of art of bioenergetic inhibitors of Mtb with an in-depth analysis of the metabolic and bioenergetic disruptions caused by specific target inhibition as well as their synergistic and antagonistic interactions with other drugs. This foundation is then used to explore the reigning theories on the mechanisms of antibiotic-induced cell death and we discuss how bioenergetic inhibitors in particular fail to be adequately described by these models. These discussions lead us to develop a clear roadmap for new lines of investigation to better understand the mechanisms of action of these drugs with complex mechanisms as well as how to leverage that knowledge for the development of novel, rationally-designed combination therapies to cure TB.
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spelling doaj.art-0047ce6d7b8c4b73b3887655cdc106222022-12-21T22:41:41ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882021-01-011010.3389/fcimb.2020.611683611683Bioenergetic Inhibitors: Antibiotic Efficacy and Mechanisms of Action in Mycobacterium tuberculosisErik J. HasenoehrlThomas J. WigginsMichael BerneyDevelopment of novel anti-tuberculosis combination regimens that increase efficacy and reduce treatment timelines will improve patient compliance, limit side-effects, reduce costs, and enhance cure rates. Such advancements would significantly improve the global TB burden and reduce drug resistance acquisition. Bioenergetics has received considerable attention in recent years as a fertile area for anti-tuberculosis drug discovery. Targeting the electron transport chain (ETC) and oxidative phosphorylation machinery promises not only to kill growing cells but also metabolically dormant bacilli that are inherently more drug tolerant. Over the last two decades, a broad array of drugs targeting various ETC components have been developed. Here, we provide a focused review of the current state of art of bioenergetic inhibitors of Mtb with an in-depth analysis of the metabolic and bioenergetic disruptions caused by specific target inhibition as well as their synergistic and antagonistic interactions with other drugs. This foundation is then used to explore the reigning theories on the mechanisms of antibiotic-induced cell death and we discuss how bioenergetic inhibitors in particular fail to be adequately described by these models. These discussions lead us to develop a clear roadmap for new lines of investigation to better understand the mechanisms of action of these drugs with complex mechanisms as well as how to leverage that knowledge for the development of novel, rationally-designed combination therapies to cure TB.https://www.frontiersin.org/articles/10.3389/fcimb.2020.611683/fullMycobacterium tuberculosisbioenergeticsbactericidalelectron transport chainbedaquilineQ203
spellingShingle Erik J. Hasenoehrl
Thomas J. Wiggins
Michael Berney
Bioenergetic Inhibitors: Antibiotic Efficacy and Mechanisms of Action in Mycobacterium tuberculosis
Frontiers in Cellular and Infection Microbiology
Mycobacterium tuberculosis
bioenergetics
bactericidal
electron transport chain
bedaquiline
Q203
title Bioenergetic Inhibitors: Antibiotic Efficacy and Mechanisms of Action in Mycobacterium tuberculosis
title_full Bioenergetic Inhibitors: Antibiotic Efficacy and Mechanisms of Action in Mycobacterium tuberculosis
title_fullStr Bioenergetic Inhibitors: Antibiotic Efficacy and Mechanisms of Action in Mycobacterium tuberculosis
title_full_unstemmed Bioenergetic Inhibitors: Antibiotic Efficacy and Mechanisms of Action in Mycobacterium tuberculosis
title_short Bioenergetic Inhibitors: Antibiotic Efficacy and Mechanisms of Action in Mycobacterium tuberculosis
title_sort bioenergetic inhibitors antibiotic efficacy and mechanisms of action in mycobacterium tuberculosis
topic Mycobacterium tuberculosis
bioenergetics
bactericidal
electron transport chain
bedaquiline
Q203
url https://www.frontiersin.org/articles/10.3389/fcimb.2020.611683/full
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AT michaelberney bioenergeticinhibitorsantibioticefficacyandmechanismsofactioninmycobacteriumtuberculosis