Comparative genomic hybridization identifies virulence differences in Streptococcus suis.

Streptococcus suis is an important zoonotic pathogen. However, identification of virulent S. suis strains is complicated because of the high diversity of the species. Here we evaluated the genetic difference among S. suis strains using comparative genomic hybridization (CGH) and virulence variation...

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Main Authors: Han Zheng, Ruiting Lan, Xiao Zheng, Zhigang Cui, Zhijie Liu, Xuemei Bai, Shaobo Ji, Marcelo Gottschalk, Jianguo Xu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3913679?pdf=render
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author Han Zheng
Ruiting Lan
Xiao Zheng
Zhigang Cui
Zhijie Liu
Xuemei Bai
Shaobo Ji
Marcelo Gottschalk
Jianguo Xu
author_facet Han Zheng
Ruiting Lan
Xiao Zheng
Zhigang Cui
Zhijie Liu
Xuemei Bai
Shaobo Ji
Marcelo Gottschalk
Jianguo Xu
author_sort Han Zheng
collection DOAJ
description Streptococcus suis is an important zoonotic pathogen. However, identification of virulent S. suis strains is complicated because of the high diversity of the species. Here we evaluated the genetic difference among S. suis strains using comparative genomic hybridization (CGH) and virulence variation in vivo and in vitro. We showed that different clades differed in their ability to activate TLR2/6 in vitro and their capacity to induce cytokine production in vivo as well as their resistance to phagocytosis and survival in vivo. Our data showed the S. suis strains tested can be classified into three groups having differing levels of virulence: epidemic and highly virulent strains were clustered into clade Ia (epidemic and highly virulent group, E/HV group), virulent strains were clustered into clade Ib (virulent group, V group), and intermediately or weakly virulent strains were clustered into other clades (intermediately or weakly virulent group, I/WV group). Our study provided further insight into the genomic and virulence variation of S. suis.
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spelling doaj.art-dfc7660225e541b08c03aaaabbc0e6342022-12-21T21:43:33ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0192e8786610.1371/journal.pone.0087866Comparative genomic hybridization identifies virulence differences in Streptococcus suis.Han ZhengRuiting LanXiao ZhengZhigang CuiZhijie LiuXuemei BaiShaobo JiMarcelo GottschalkJianguo XuStreptococcus suis is an important zoonotic pathogen. However, identification of virulent S. suis strains is complicated because of the high diversity of the species. Here we evaluated the genetic difference among S. suis strains using comparative genomic hybridization (CGH) and virulence variation in vivo and in vitro. We showed that different clades differed in their ability to activate TLR2/6 in vitro and their capacity to induce cytokine production in vivo as well as their resistance to phagocytosis and survival in vivo. Our data showed the S. suis strains tested can be classified into three groups having differing levels of virulence: epidemic and highly virulent strains were clustered into clade Ia (epidemic and highly virulent group, E/HV group), virulent strains were clustered into clade Ib (virulent group, V group), and intermediately or weakly virulent strains were clustered into other clades (intermediately or weakly virulent group, I/WV group). Our study provided further insight into the genomic and virulence variation of S. suis.http://europepmc.org/articles/PMC3913679?pdf=render
spellingShingle Han Zheng
Ruiting Lan
Xiao Zheng
Zhigang Cui
Zhijie Liu
Xuemei Bai
Shaobo Ji
Marcelo Gottschalk
Jianguo Xu
Comparative genomic hybridization identifies virulence differences in Streptococcus suis.
PLoS ONE
title Comparative genomic hybridization identifies virulence differences in Streptococcus suis.
title_full Comparative genomic hybridization identifies virulence differences in Streptococcus suis.
title_fullStr Comparative genomic hybridization identifies virulence differences in Streptococcus suis.
title_full_unstemmed Comparative genomic hybridization identifies virulence differences in Streptococcus suis.
title_short Comparative genomic hybridization identifies virulence differences in Streptococcus suis.
title_sort comparative genomic hybridization identifies virulence differences in streptococcus suis
url http://europepmc.org/articles/PMC3913679?pdf=render
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