Investigation of genomic and pathogenicity characteristics of Streptococcus suis ST1 human strains from Guangxi Zhuang Autonomous Region (GX) between 2005 and 2020 in China

Streptococcus suis is a significant and emerging zoonotic pathogen. ST1 and ST7 strains are the primary agents responsible for S. suis human infections in China, including the Guangxi Zhuang Autonomous Region (GX). To enhance our understanding of S. suis ST1 population characteristics, we conducted...

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Main Authors: Weiming Kang, Mingliu Wang, Xueli Yi, Jianping Wang, Xiyan Zhang, Zongfu Wu, Yan Wang, Hui Sun, Marcelo Gottschalk, Han Zheng, Jianguo Xu
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:Emerging Microbes and Infections
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Online Access:https://www.tandfonline.com/doi/10.1080/22221751.2024.2339946
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author Weiming Kang
Mingliu Wang
Xueli Yi
Jianping Wang
Xiyan Zhang
Zongfu Wu
Yan Wang
Hui Sun
Marcelo Gottschalk
Han Zheng
Jianguo Xu
author_facet Weiming Kang
Mingliu Wang
Xueli Yi
Jianping Wang
Xiyan Zhang
Zongfu Wu
Yan Wang
Hui Sun
Marcelo Gottschalk
Han Zheng
Jianguo Xu
author_sort Weiming Kang
collection DOAJ
description Streptococcus suis is a significant and emerging zoonotic pathogen. ST1 and ST7 strains are the primary agents responsible for S. suis human infections in China, including the Guangxi Zhuang Autonomous Region (GX). To enhance our understanding of S. suis ST1 population characteristics, we conducted an investigation into the phylogenetic structure, genomic features, and virulence levels of 73 S. suis ST1 human strains from GX between 2005 and 2020. The ST1 GX strains were categorized into three lineages in phylogenetic analysis. Sub-lineage 3-1a exhibited a closer phylogenetic relationship with the ST7 epidemic strain SC84. The strains from lineage 3 predominantly harboured 89K-like pathogenicity islands (PAIs) which were categorized into four clades based on sequence alignment. The acquirement of 89K-like PAIs increased the antibiotic resistance and pathogenicity of corresponding transconjugants. We observed significant diversity in virulence levels among the 37 representative ST1 GX strains, that were classified as follows: epidemic (E)/highly virulent (HV) (32.4%, 12/37), virulent plus (V+) (29.7%, 11/37), virulent (V) (18.9%, 7/37), and lowly virulent (LV) (18.9%, 7/37) strains based on survival curves and mortality rates at different time points in C57BL/6 mice following infection. The E/HV strains were characterized by the overproduction of tumour necrosis factor (TNF)-α in serum and promptly established infection at the early phase of infection. Our research offers novel insights into the population structure, evolution, genomic features, and pathogenicity of ST1 strains. Our data also indicates the importance of establishing a scheme for characterizing and subtyping the virulence levels of S. suis strains.
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spelling doaj-art-e5cc9f741329405783ec604e6a2a162e2025-08-20T02:20:37ZengTaylor & Francis GroupEmerging Microbes and Infections2222-17512024-12-0113110.1080/22221751.2024.2339946Investigation of genomic and pathogenicity characteristics of Streptococcus suis ST1 human strains from Guangxi Zhuang Autonomous Region (GX) between 2005 and 2020 in ChinaWeiming Kang0Mingliu Wang1Xueli Yi2Jianping Wang3Xiyan Zhang4Zongfu Wu5Yan Wang6Hui Sun7Marcelo Gottschalk8Han Zheng9Jianguo Xu10National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of ChinaGuangxi Zhuang Autonomous Region Center for Disease Prevention and Control, Nanning, People’s Republic of ChinaKey Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi, Affiliated Hospital of Youjiang Medical University for Nationalities, Youjiang, People’s Republic of ChinaNational Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of ChinaNational Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of ChinaWOAH Reference Lab for Swine Streptococcosis, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People’s Republic of ChinaNational Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of ChinaNational Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of ChinaSwine and Poultry Infectious Diseases Research Center, Faculty of Veterinary Medicine, University of Montreal, Quebec, CanadaNational Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of ChinaNational Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of ChinaStreptococcus suis is a significant and emerging zoonotic pathogen. ST1 and ST7 strains are the primary agents responsible for S. suis human infections in China, including the Guangxi Zhuang Autonomous Region (GX). To enhance our understanding of S. suis ST1 population characteristics, we conducted an investigation into the phylogenetic structure, genomic features, and virulence levels of 73 S. suis ST1 human strains from GX between 2005 and 2020. The ST1 GX strains were categorized into three lineages in phylogenetic analysis. Sub-lineage 3-1a exhibited a closer phylogenetic relationship with the ST7 epidemic strain SC84. The strains from lineage 3 predominantly harboured 89K-like pathogenicity islands (PAIs) which were categorized into four clades based on sequence alignment. The acquirement of 89K-like PAIs increased the antibiotic resistance and pathogenicity of corresponding transconjugants. We observed significant diversity in virulence levels among the 37 representative ST1 GX strains, that were classified as follows: epidemic (E)/highly virulent (HV) (32.4%, 12/37), virulent plus (V+) (29.7%, 11/37), virulent (V) (18.9%, 7/37), and lowly virulent (LV) (18.9%, 7/37) strains based on survival curves and mortality rates at different time points in C57BL/6 mice following infection. The E/HV strains were characterized by the overproduction of tumour necrosis factor (TNF)-α in serum and promptly established infection at the early phase of infection. Our research offers novel insights into the population structure, evolution, genomic features, and pathogenicity of ST1 strains. Our data also indicates the importance of establishing a scheme for characterizing and subtyping the virulence levels of S. suis strains.https://www.tandfonline.com/doi/10.1080/22221751.2024.2339946Streptococcus suisST189K-lke PAIsvirulenceTNF-α
spellingShingle Weiming Kang
Mingliu Wang
Xueli Yi
Jianping Wang
Xiyan Zhang
Zongfu Wu
Yan Wang
Hui Sun
Marcelo Gottschalk
Han Zheng
Jianguo Xu
Investigation of genomic and pathogenicity characteristics of Streptococcus suis ST1 human strains from Guangxi Zhuang Autonomous Region (GX) between 2005 and 2020 in China
Emerging Microbes and Infections
Streptococcus suis
ST1
89K-lke PAIs
virulence
TNF-α
title Investigation of genomic and pathogenicity characteristics of Streptococcus suis ST1 human strains from Guangxi Zhuang Autonomous Region (GX) between 2005 and 2020 in China
title_full Investigation of genomic and pathogenicity characteristics of Streptococcus suis ST1 human strains from Guangxi Zhuang Autonomous Region (GX) between 2005 and 2020 in China
title_fullStr Investigation of genomic and pathogenicity characteristics of Streptococcus suis ST1 human strains from Guangxi Zhuang Autonomous Region (GX) between 2005 and 2020 in China
title_full_unstemmed Investigation of genomic and pathogenicity characteristics of Streptococcus suis ST1 human strains from Guangxi Zhuang Autonomous Region (GX) between 2005 and 2020 in China
title_short Investigation of genomic and pathogenicity characteristics of Streptococcus suis ST1 human strains from Guangxi Zhuang Autonomous Region (GX) between 2005 and 2020 in China
title_sort investigation of genomic and pathogenicity characteristics of streptococcus suis st1 human strains from guangxi zhuang autonomous region gx between 2005 and 2020 in china
topic Streptococcus suis
ST1
89K-lke PAIs
virulence
TNF-α
url https://www.tandfonline.com/doi/10.1080/22221751.2024.2339946
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