Bacteriophages and Biofilms

Biofilms are an extremely common adaptation, allowing bacteria to colonize hostile environments. They present unique problems for antibiotics and biocides, both due to the nature of the extracellular matrix and to the presence within the biofilm of metabolically inactive persister cells. Such chemic...

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Main Authors: David R. Harper, Helena M. R. T. Parracho, James Walker, Richard Sharp, Gavin Hughes, Maria Werthén, Susan Lehman, Sandra Morales
Format: Article
Language:English
Published: MDPI AG 2014-06-01
Series:Antibiotics
Subjects:
Online Access:http://www.mdpi.com/2079-6382/3/3/270
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author David R. Harper
Helena M. R. T. Parracho
James Walker
Richard Sharp
Gavin Hughes
Maria Werthén
Susan Lehman
Sandra Morales
author_facet David R. Harper
Helena M. R. T. Parracho
James Walker
Richard Sharp
Gavin Hughes
Maria Werthén
Susan Lehman
Sandra Morales
author_sort David R. Harper
collection DOAJ
description Biofilms are an extremely common adaptation, allowing bacteria to colonize hostile environments. They present unique problems for antibiotics and biocides, both due to the nature of the extracellular matrix and to the presence within the biofilm of metabolically inactive persister cells. Such chemicals can be highly effective against planktonic bacterial cells, while being essentially ineffective against biofilms. By contrast, bacteriophages seem to have a greater ability to target this common form of bacterial growth. The high numbers of bacteria present within biofilms actually facilitate the action of bacteriophages by allowing rapid and efficient infection of the host and consequent amplification of the bacteriophage. Bacteriophages also have a number of properties that make biofilms susceptible to their action. They are known to produce (or to be able to induce) enzymes that degrade the extracellular matrix. They are also able to infect persister cells, remaining dormant within them, but re-activating when they become metabolically active. Some cultured biofilms also seem better able to support the replication of bacteriophages than comparable planktonic systems. It is perhaps unsurprising that bacteriophages, as the natural predators of bacteria, have the ability to target this common form of bacterial life.
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spelling doaj.art-699c84eb019745dc9f1906ec5ea2e5702022-12-22T00:16:57ZengMDPI AGAntibiotics2079-63822014-06-013327028410.3390/antibiotics3030270antibiotics3030270Bacteriophages and BiofilmsDavid R. Harper0Helena M. R. T. Parracho1James Walker2Richard Sharp3Gavin Hughes4Maria Werthén5Susan Lehman6Sandra Morales7AmpliPhi Biosciences, Glen Allen, VA 23060, USAAmpliPhi Biosciences, Glen Allen, VA 23060, USAPublic Health England, Porton Down, Salisbury SP4 0JG, UKPublic Health England, Porton Down, Salisbury SP4 0JG, UKGavin Hughes—The Surgical Materials Testing Laboratory, Bridgend, South Wales CF31 1RQ, UKMaria Werthén, Mölnlycke Health Care AB, SE-402 52 Gothenburg, SwedenAmpliPhi Biosciences, Glen Allen, VA 23060, USAAmpliPhi Biosciences, Glen Allen, VA 23060, USABiofilms are an extremely common adaptation, allowing bacteria to colonize hostile environments. They present unique problems for antibiotics and biocides, both due to the nature of the extracellular matrix and to the presence within the biofilm of metabolically inactive persister cells. Such chemicals can be highly effective against planktonic bacterial cells, while being essentially ineffective against biofilms. By contrast, bacteriophages seem to have a greater ability to target this common form of bacterial growth. The high numbers of bacteria present within biofilms actually facilitate the action of bacteriophages by allowing rapid and efficient infection of the host and consequent amplification of the bacteriophage. Bacteriophages also have a number of properties that make biofilms susceptible to their action. They are known to produce (or to be able to induce) enzymes that degrade the extracellular matrix. They are also able to infect persister cells, remaining dormant within them, but re-activating when they become metabolically active. Some cultured biofilms also seem better able to support the replication of bacteriophages than comparable planktonic systems. It is perhaps unsurprising that bacteriophages, as the natural predators of bacteria, have the ability to target this common form of bacterial life.http://www.mdpi.com/2079-6382/3/3/270bacteriophagebiofilmantibiotic resistancephage therapydepolymerasepersister cells
spellingShingle David R. Harper
Helena M. R. T. Parracho
James Walker
Richard Sharp
Gavin Hughes
Maria Werthén
Susan Lehman
Sandra Morales
Bacteriophages and Biofilms
Antibiotics
bacteriophage
biofilm
antibiotic resistance
phage therapy
depolymerase
persister cells
title Bacteriophages and Biofilms
title_full Bacteriophages and Biofilms
title_fullStr Bacteriophages and Biofilms
title_full_unstemmed Bacteriophages and Biofilms
title_short Bacteriophages and Biofilms
title_sort bacteriophages and biofilms
topic bacteriophage
biofilm
antibiotic resistance
phage therapy
depolymerase
persister cells
url http://www.mdpi.com/2079-6382/3/3/270
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AT richardsharp bacteriophagesandbiofilms
AT gavinhughes bacteriophagesandbiofilms
AT mariawerthen bacteriophagesandbiofilms
AT susanlehman bacteriophagesandbiofilms
AT sandramorales bacteriophagesandbiofilms