Nisin Influence on the Antimicrobial Resistance Ability of Canine Oral Enterococci

Periodontal disease (PD) is one of the most common diseases in dogs. Although previous studies have shown the potential of the antimicrobial peptide nisin for PD control, there is no information regarding its influence in the development of antimicrobial resistance or horizontal gene transfer (HGT)....

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Main Authors: Eva Cunha, Rita Janela, Margarida Costa, Luís Tavares, Ana Salomé Veiga, Manuela Oliveira
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Antibiotics
Subjects:
Online Access:https://www.mdpi.com/2079-6382/9/12/890
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author Eva Cunha
Rita Janela
Margarida Costa
Luís Tavares
Ana Salomé Veiga
Manuela Oliveira
author_facet Eva Cunha
Rita Janela
Margarida Costa
Luís Tavares
Ana Salomé Veiga
Manuela Oliveira
author_sort Eva Cunha
collection DOAJ
description Periodontal disease (PD) is one of the most common diseases in dogs. Although previous studies have shown the potential of the antimicrobial peptide nisin for PD control, there is no information regarding its influence in the development of antimicrobial resistance or horizontal gene transfer (HGT). Nisin’s mutant prevention concentration (MPC) and selection window (MSW) were determined for a collection of canine oral enterococci. Isolates recovered after the determination of the MPC values were characterized for their antimicrobial profile and its nisin minimum inhibitory and bactericidal concentrations. The potential of <i>vanA</i> HGT between <i>Enterococcus faecium</i> CCGU36804 and nine clinical canine staphylococci and enterococci was evaluated. Nisin MPC values ranged from 400 to more than 600 μg/mL. In comparison with the original enterococci collection, the isolates recovered after the determination of the nisin MPC showed increased resistance towards amoxicillin/clavulanate (5%), vancomycin (5%), enrofloxacin (10%), gentamicin (10%) and imipenem (15%). The HGT of <i>vanA</i> gene was not observed. This work showed that nisin selective pressure may induce changes in the bacteria’s antimicrobial resistance profile but does not influence horizontal transfer of <i>vanA</i> gene. To our knowledge, this is the first report of nisin’s MPC and MSW determination regarding canine enterococci.
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spelling doaj.art-09cef4a82961406ba966f77ef3f218c62023-11-21T00:14:42ZengMDPI AGAntibiotics2079-63822020-12-0191289010.3390/antibiotics9120890Nisin Influence on the Antimicrobial Resistance Ability of Canine Oral EnterococciEva Cunha0Rita Janela1Margarida Costa2Luís Tavares3Ana Salomé Veiga4Manuela Oliveira5CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. da Universidade Técnica, 1300-477 Lisboa, PortugalCIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. da Universidade Técnica, 1300-477 Lisboa, PortugalCIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. da Universidade Técnica, 1300-477 Lisboa, PortugalCIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. da Universidade Técnica, 1300-477 Lisboa, PortugalInstituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028 Lisboa, PortugalCIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. da Universidade Técnica, 1300-477 Lisboa, PortugalPeriodontal disease (PD) is one of the most common diseases in dogs. Although previous studies have shown the potential of the antimicrobial peptide nisin for PD control, there is no information regarding its influence in the development of antimicrobial resistance or horizontal gene transfer (HGT). Nisin’s mutant prevention concentration (MPC) and selection window (MSW) were determined for a collection of canine oral enterococci. Isolates recovered after the determination of the MPC values were characterized for their antimicrobial profile and its nisin minimum inhibitory and bactericidal concentrations. The potential of <i>vanA</i> HGT between <i>Enterococcus faecium</i> CCGU36804 and nine clinical canine staphylococci and enterococci was evaluated. Nisin MPC values ranged from 400 to more than 600 μg/mL. In comparison with the original enterococci collection, the isolates recovered after the determination of the nisin MPC showed increased resistance towards amoxicillin/clavulanate (5%), vancomycin (5%), enrofloxacin (10%), gentamicin (10%) and imipenem (15%). The HGT of <i>vanA</i> gene was not observed. This work showed that nisin selective pressure may induce changes in the bacteria’s antimicrobial resistance profile but does not influence horizontal transfer of <i>vanA</i> gene. To our knowledge, this is the first report of nisin’s MPC and MSW determination regarding canine enterococci.https://www.mdpi.com/2079-6382/9/12/890nisinmutant prevention concentrationmutant selection windowantimicrobial susceptibility testinghorizontal gene transfer
spellingShingle Eva Cunha
Rita Janela
Margarida Costa
Luís Tavares
Ana Salomé Veiga
Manuela Oliveira
Nisin Influence on the Antimicrobial Resistance Ability of Canine Oral Enterococci
Antibiotics
nisin
mutant prevention concentration
mutant selection window
antimicrobial susceptibility testing
horizontal gene transfer
title Nisin Influence on the Antimicrobial Resistance Ability of Canine Oral Enterococci
title_full Nisin Influence on the Antimicrobial Resistance Ability of Canine Oral Enterococci
title_fullStr Nisin Influence on the Antimicrobial Resistance Ability of Canine Oral Enterococci
title_full_unstemmed Nisin Influence on the Antimicrobial Resistance Ability of Canine Oral Enterococci
title_short Nisin Influence on the Antimicrobial Resistance Ability of Canine Oral Enterococci
title_sort nisin influence on the antimicrobial resistance ability of canine oral enterococci
topic nisin
mutant prevention concentration
mutant selection window
antimicrobial susceptibility testing
horizontal gene transfer
url https://www.mdpi.com/2079-6382/9/12/890
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AT ritajanela nisininfluenceontheantimicrobialresistanceabilityofcanineoralenterococci
AT margaridacosta nisininfluenceontheantimicrobialresistanceabilityofcanineoralenterococci
AT luistavares nisininfluenceontheantimicrobialresistanceabilityofcanineoralenterococci
AT anasalomeveiga nisininfluenceontheantimicrobialresistanceabilityofcanineoralenterococci
AT manuelaoliveira nisininfluenceontheantimicrobialresistanceabilityofcanineoralenterococci