In Vitro Characteristics of Phages to Guide ‘Real Life’ Phage Therapy Suitability

The increasing problem of antibiotic-resistant pathogens has put enormous pressure on healthcare providers to reduce the application of antibiotics and to identify alternative therapies. Phages represent such an alternative with significant application potential, either on their own or in combinatio...

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Main Authors: Eoghan Casey, Douwe van Sinderen, Jennifer Mahony
Format: Article
Language:English
Published: MDPI AG 2018-03-01
Series:Viruses
Subjects:
Online Access:http://www.mdpi.com/1999-4915/10/4/163
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author Eoghan Casey
Douwe van Sinderen
Jennifer Mahony
author_facet Eoghan Casey
Douwe van Sinderen
Jennifer Mahony
author_sort Eoghan Casey
collection DOAJ
description The increasing problem of antibiotic-resistant pathogens has put enormous pressure on healthcare providers to reduce the application of antibiotics and to identify alternative therapies. Phages represent such an alternative with significant application potential, either on their own or in combination with antibiotics to enhance the effectiveness of traditional therapies. However, while phage therapy may offer exciting therapeutic opportunities, its evaluation for safe and appropriate use in humans needs to be guided initially by reliable and appropriate assessment techniques at the laboratory level. Here, we review the process of phage isolation and the application of individual pathogens or reference collections for the development of specific or “off-the-shelf” preparations. Furthermore, we evaluate current characterization approaches to assess the in vitro therapeutic potential of a phage including its spectrum of activity, genome characteristics, storage and administration requirements and effectiveness against biofilms. Lytic characteristics and the ability to overcome anti-phage systems are also covered. These attributes direct phage selection for their ultimate application as antimicrobial agents. We also discuss current pitfalls in this research area and propose that priority should be given to unify current phage characterization approaches.
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spelling doaj.art-22863e7286b6482592089cd08ea169e92022-12-22T00:42:17ZengMDPI AGViruses1999-49152018-03-0110416310.3390/v10040163v10040163In Vitro Characteristics of Phages to Guide ‘Real Life’ Phage Therapy SuitabilityEoghan Casey0Douwe van Sinderen1Jennifer Mahony2School of Microbiology and APC Microbiome Ireland, University College Cork, T12 YT20 Cork, IrelandSchool of Microbiology and APC Microbiome Ireland, University College Cork, T12 YT20 Cork, IrelandSchool of Microbiology and APC Microbiome Ireland, University College Cork, T12 YT20 Cork, IrelandThe increasing problem of antibiotic-resistant pathogens has put enormous pressure on healthcare providers to reduce the application of antibiotics and to identify alternative therapies. Phages represent such an alternative with significant application potential, either on their own or in combination with antibiotics to enhance the effectiveness of traditional therapies. However, while phage therapy may offer exciting therapeutic opportunities, its evaluation for safe and appropriate use in humans needs to be guided initially by reliable and appropriate assessment techniques at the laboratory level. Here, we review the process of phage isolation and the application of individual pathogens or reference collections for the development of specific or “off-the-shelf” preparations. Furthermore, we evaluate current characterization approaches to assess the in vitro therapeutic potential of a phage including its spectrum of activity, genome characteristics, storage and administration requirements and effectiveness against biofilms. Lytic characteristics and the ability to overcome anti-phage systems are also covered. These attributes direct phage selection for their ultimate application as antimicrobial agents. We also discuss current pitfalls in this research area and propose that priority should be given to unify current phage characterization approaches.http://www.mdpi.com/1999-4915/10/4/163pH stabilityphage-host interactionsgenomicsantibiotic-resistancephage preparationlysinsbiofilms
spellingShingle Eoghan Casey
Douwe van Sinderen
Jennifer Mahony
In Vitro Characteristics of Phages to Guide ‘Real Life’ Phage Therapy Suitability
Viruses
pH stability
phage-host interactions
genomics
antibiotic-resistance
phage preparation
lysins
biofilms
title In Vitro Characteristics of Phages to Guide ‘Real Life’ Phage Therapy Suitability
title_full In Vitro Characteristics of Phages to Guide ‘Real Life’ Phage Therapy Suitability
title_fullStr In Vitro Characteristics of Phages to Guide ‘Real Life’ Phage Therapy Suitability
title_full_unstemmed In Vitro Characteristics of Phages to Guide ‘Real Life’ Phage Therapy Suitability
title_short In Vitro Characteristics of Phages to Guide ‘Real Life’ Phage Therapy Suitability
title_sort in vitro characteristics of phages to guide real life phage therapy suitability
topic pH stability
phage-host interactions
genomics
antibiotic-resistance
phage preparation
lysins
biofilms
url http://www.mdpi.com/1999-4915/10/4/163
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AT douwevansinderen invitrocharacteristicsofphagestoguidereallifephagetherapysuitability
AT jennifermahony invitrocharacteristicsofphagestoguidereallifephagetherapysuitability