To Defend or Not To Defend: That’s the Question

ABSTRACT Enterococcus faecalis is an opportunistic pathogen and is one of the leading causes of nosocomial infections. E. faecalis harbors a number of antibiotic resistance genes, and most of these are present on mobile genetic elements (MGEs) that can be disseminated within the species, as well as...

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Main Authors: Sriram Varahan, Lynn E. Hancock
Format: Article
Language:English
Published: American Society for Microbiology 2016-06-01
Series:mSphere
Subjects:
Online Access:https://journals.asm.org/doi/10.1128/mSphere.00127-16
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author Sriram Varahan
Lynn E. Hancock
author_facet Sriram Varahan
Lynn E. Hancock
author_sort Sriram Varahan
collection DOAJ
description ABSTRACT Enterococcus faecalis is an opportunistic pathogen and is one of the leading causes of nosocomial infections. E. faecalis harbors a number of antibiotic resistance genes, and most of these are present on mobile genetic elements (MGEs) that can be disseminated within the species, as well as to other members of the human microflora. In an article by Price and colleagues [V. J. Price et al., mSphere 1(3):e00064-16, 2016, http://dx.doi.org/10.1128/mSphere.00064-16 ], the authors demonstrated how E. faecalis uses a restriction-modification system along with a clustered regularly interspaced short palindromic repeat (CRISPR)-Cas to function as a bacterial innate and adaptive immune system to regulate the influx of MGEs. The absence of these systems in high-risk hospital-adapted lineages of E. faecalis, including the prototypical V583 strain, appears to allow the ready acquisition of new traits that aid in the adaptation to new environmental stresses, including the evolution of resistance to many of our best antibiotics.
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spelling doaj.art-7ab4f46caf3a40508c428cd99c720eee2022-12-21T20:38:03ZengAmerican Society for MicrobiologymSphere2379-50422016-06-011310.1128/mSphere.00127-16To Defend or Not To Defend: That’s the QuestionSriram Varahan0Lynn E. Hancock1Institute for Stem Cell Biology and Regenerative Medicine (inStem), National Centre for Biological Sciences, Bangalore, IndiaDepartment of Molecular Biosciences, University of Kansas, Lawrence, Kansas, USAABSTRACT Enterococcus faecalis is an opportunistic pathogen and is one of the leading causes of nosocomial infections. E. faecalis harbors a number of antibiotic resistance genes, and most of these are present on mobile genetic elements (MGEs) that can be disseminated within the species, as well as to other members of the human microflora. In an article by Price and colleagues [V. J. Price et al., mSphere 1(3):e00064-16, 2016, http://dx.doi.org/10.1128/mSphere.00064-16 ], the authors demonstrated how E. faecalis uses a restriction-modification system along with a clustered regularly interspaced short palindromic repeat (CRISPR)-Cas to function as a bacterial innate and adaptive immune system to regulate the influx of MGEs. The absence of these systems in high-risk hospital-adapted lineages of E. faecalis, including the prototypical V583 strain, appears to allow the ready acquisition of new traits that aid in the adaptation to new environmental stresses, including the evolution of resistance to many of our best antibiotics.https://journals.asm.org/doi/10.1128/mSphere.00127-16CRISPREnterococcus faecalisantibiotic resistance
spellingShingle Sriram Varahan
Lynn E. Hancock
To Defend or Not To Defend: That’s the Question
mSphere
CRISPR
Enterococcus faecalis
antibiotic resistance
title To Defend or Not To Defend: That’s the Question
title_full To Defend or Not To Defend: That’s the Question
title_fullStr To Defend or Not To Defend: That’s the Question
title_full_unstemmed To Defend or Not To Defend: That’s the Question
title_short To Defend or Not To Defend: That’s the Question
title_sort to defend or not to defend that s the question
topic CRISPR
Enterococcus faecalis
antibiotic resistance
url https://journals.asm.org/doi/10.1128/mSphere.00127-16
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