Overcoming Intrinsic and Acquired Resistance Mechanisms Associated with the Cell Wall of Gram-Negative Bacteria

The global increase in multi-drug-resistant bacteria is severely impacting our ability to effectively treat common infections. For Gram-negative bacteria, their intrinsic and acquired resistance mechanisms are heightened by their unique cell wall structure. The cell wall, while being a target of som...

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Main Authors: Rachael E. Impey, Daniel A. Hawkins, J. Mark Sutton, Tatiana P. Soares da Costa
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Antibiotics
Subjects:
Online Access:https://www.mdpi.com/2079-6382/9/9/623
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author Rachael E. Impey
Daniel A. Hawkins
J. Mark Sutton
Tatiana P. Soares da Costa
author_facet Rachael E. Impey
Daniel A. Hawkins
J. Mark Sutton
Tatiana P. Soares da Costa
author_sort Rachael E. Impey
collection DOAJ
description The global increase in multi-drug-resistant bacteria is severely impacting our ability to effectively treat common infections. For Gram-negative bacteria, their intrinsic and acquired resistance mechanisms are heightened by their unique cell wall structure. The cell wall, while being a target of some antibiotics, represents a barrier due to the inability of most antibacterial compounds to traverse and reach their intended target. This means that its composition and resulting mechanisms of resistance must be considered when developing new therapies. Here, we discuss potential antibiotic targets within the most well-characterised resistance mechanisms associated with the cell wall in Gram-negative bacteria, including the outer membrane structure, porins and efflux pumps. We also provide a timely update on the current progress of inhibitor development in these areas. Such compounds could represent new avenues for drug discovery as well as adjuvant therapy to help us overcome antibiotic resistance.
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spelling doaj.art-ab714374b57043e482f53e70794a0c562023-11-20T14:19:47ZengMDPI AGAntibiotics2079-63822020-09-019962310.3390/antibiotics9090623Overcoming Intrinsic and Acquired Resistance Mechanisms Associated with the Cell Wall of Gram-Negative BacteriaRachael E. Impey0Daniel A. Hawkins1J. Mark Sutton2Tatiana P. Soares da Costa3Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086, AustraliaDepartment of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086, AustraliaNational Infection Service, Research and Development Institute, Public Health England, Porton Down, Salisbury, Wiltshire SP4 0JG, UKDepartment of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086, AustraliaThe global increase in multi-drug-resistant bacteria is severely impacting our ability to effectively treat common infections. For Gram-negative bacteria, their intrinsic and acquired resistance mechanisms are heightened by their unique cell wall structure. The cell wall, while being a target of some antibiotics, represents a barrier due to the inability of most antibacterial compounds to traverse and reach their intended target. This means that its composition and resulting mechanisms of resistance must be considered when developing new therapies. Here, we discuss potential antibiotic targets within the most well-characterised resistance mechanisms associated with the cell wall in Gram-negative bacteria, including the outer membrane structure, porins and efflux pumps. We also provide a timely update on the current progress of inhibitor development in these areas. Such compounds could represent new avenues for drug discovery as well as adjuvant therapy to help us overcome antibiotic resistance.https://www.mdpi.com/2079-6382/9/9/623antibiotic discoveryantimicrobial resistancecell wallGram-negative bacteria
spellingShingle Rachael E. Impey
Daniel A. Hawkins
J. Mark Sutton
Tatiana P. Soares da Costa
Overcoming Intrinsic and Acquired Resistance Mechanisms Associated with the Cell Wall of Gram-Negative Bacteria
Antibiotics
antibiotic discovery
antimicrobial resistance
cell wall
Gram-negative bacteria
title Overcoming Intrinsic and Acquired Resistance Mechanisms Associated with the Cell Wall of Gram-Negative Bacteria
title_full Overcoming Intrinsic and Acquired Resistance Mechanisms Associated with the Cell Wall of Gram-Negative Bacteria
title_fullStr Overcoming Intrinsic and Acquired Resistance Mechanisms Associated with the Cell Wall of Gram-Negative Bacteria
title_full_unstemmed Overcoming Intrinsic and Acquired Resistance Mechanisms Associated with the Cell Wall of Gram-Negative Bacteria
title_short Overcoming Intrinsic and Acquired Resistance Mechanisms Associated with the Cell Wall of Gram-Negative Bacteria
title_sort overcoming intrinsic and acquired resistance mechanisms associated with the cell wall of gram negative bacteria
topic antibiotic discovery
antimicrobial resistance
cell wall
Gram-negative bacteria
url https://www.mdpi.com/2079-6382/9/9/623
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