Multidrug Efflux Systems in Helicobacter cinaedi

Helicobacter cinaedi causes infections, such as bacteremia, diarrhea and cellulitis in mainly immunocompromised patients. This pathogen is often problematic to analyze, and insufficient information is available, because it grows slowly and poorly in subculture under a microaerobic atmosphere. The fi...

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Main Authors: Yoshiaki Kawamura, Junko Tomida, Yuji Morita
Format: Article
Language:English
Published: MDPI AG 2012-11-01
Series:Antibiotics
Subjects:
Online Access:http://www.mdpi.com/2079-6382/1/1/29
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author Yoshiaki Kawamura
Junko Tomida
Yuji Morita
author_facet Yoshiaki Kawamura
Junko Tomida
Yuji Morita
author_sort Yoshiaki Kawamura
collection DOAJ
description Helicobacter cinaedi causes infections, such as bacteremia, diarrhea and cellulitis in mainly immunocompromised patients. This pathogen is often problematic to analyze, and insufficient information is available, because it grows slowly and poorly in subculture under a microaerobic atmosphere. The first-choice therapy to eradicate H. cinaedi is antimicrobial chemotherapy; however, its use is linked to the development of resistance. Although we need to understand the antimicrobial resistance mechanisms of H. cinaedi, unfortunately, sufficient genetic tools for H. cinaedi have not yet been developed. In July 2012, the complete sequence of H. cinaedi strain PAGU 611, isolated from a case of human bacteremia, was announced. This strain possesses multidrug efflux systems, intrinsic antimicrobial resistance mechanisms and typical mutations in gyrA and the 23S rRNA gene, which are involved in acquired resistance to fluoroquinolones and macrolides, respectively. Here, we compare the organization and properties of the efflux systems of H. cinaedi with the multidrug efflux systems identified in other bacteria.
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spelling doaj.art-d740ce99f44349c09b53cf58dd32c7322022-12-21T19:36:48ZengMDPI AGAntibiotics2079-63822012-11-0111294310.3390/antibiotics1010029Multidrug Efflux Systems in Helicobacter cinaediYoshiaki KawamuraJunko TomidaYuji MoritaHelicobacter cinaedi causes infections, such as bacteremia, diarrhea and cellulitis in mainly immunocompromised patients. This pathogen is often problematic to analyze, and insufficient information is available, because it grows slowly and poorly in subculture under a microaerobic atmosphere. The first-choice therapy to eradicate H. cinaedi is antimicrobial chemotherapy; however, its use is linked to the development of resistance. Although we need to understand the antimicrobial resistance mechanisms of H. cinaedi, unfortunately, sufficient genetic tools for H. cinaedi have not yet been developed. In July 2012, the complete sequence of H. cinaedi strain PAGU 611, isolated from a case of human bacteremia, was announced. This strain possesses multidrug efflux systems, intrinsic antimicrobial resistance mechanisms and typical mutations in gyrA and the 23S rRNA gene, which are involved in acquired resistance to fluoroquinolones and macrolides, respectively. Here, we compare the organization and properties of the efflux systems of H. cinaedi with the multidrug efflux systems identified in other bacteria.http://www.mdpi.com/2079-6382/1/1/29Helicobacter cinaedieffluxantimicrobial resistance
spellingShingle Yoshiaki Kawamura
Junko Tomida
Yuji Morita
Multidrug Efflux Systems in Helicobacter cinaedi
Antibiotics
Helicobacter cinaedi
efflux
antimicrobial resistance
title Multidrug Efflux Systems in Helicobacter cinaedi
title_full Multidrug Efflux Systems in Helicobacter cinaedi
title_fullStr Multidrug Efflux Systems in Helicobacter cinaedi
title_full_unstemmed Multidrug Efflux Systems in Helicobacter cinaedi
title_short Multidrug Efflux Systems in Helicobacter cinaedi
title_sort multidrug efflux systems in helicobacter cinaedi
topic Helicobacter cinaedi
efflux
antimicrobial resistance
url http://www.mdpi.com/2079-6382/1/1/29
work_keys_str_mv AT yoshiakikawamura multidrugeffluxsystemsinhelicobactercinaedi
AT junkotomida multidrugeffluxsystemsinhelicobactercinaedi
AT yujimorita multidrugeffluxsystemsinhelicobactercinaedi