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Zhu J, Wang J, Kang W, Zhang X, Kerdsin A, Yao H, Zheng H, Wu Z. Streptococcus suis serotype 4: a population with the potential pathogenicity in humans and pigs. Emerg Microbes Infect 2024; 13:2352435. [PMID: 38703011 PMCID: PMC11097711 DOI: 10.1080/22221751.2024.2352435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 05/02/2024] [Indexed: 05/06/2024]
Abstract
Streptococcus suis is a major bacterial pathogen in pigs and an emerging zoonotic pathogen. Different S. suis serotypes exhibit diverse characteristics in population structure and pathogenicity. Surveillance data highlight the significance of S. suis serotype 4 (SS4) in swine streptococcusis, a pathotype causing human infections. However, except for a few epidemiologic studies, the information on SS4 remains limited. In this study, we investigated the population structure, pathogenicity, and antimicrobial characteristics of SS4 based on 126 isolates, including one from a patient with septicemia. We discovered significant diversities within this population, clustering into six minimum core genome (MCG) groups (1, 2, 3, 4, 7-2, and 7-3) and five lineages. Two main clonal complexes (CCs), CC17 and CC94, belong to MCG groups 1 and 3, respectively. Numerous important putative virulence-associated genes are present in these two MCG groups, and 35.00% (7/20) of pig isolates from CC17, CC94, and CC839 (also belonging to MCG group 3) were highly virulent (mortality rate ≥ 80%) in zebrafish and mice, similar to the human isolate ID36054. Cytotoxicity assays showed that the human and pig isolates of SS4 strains exhibit significant cytotoxicity to human cells. Antimicrobial susceptibility testing showed that 95.83% of strains isolated from our labs were classified as multidrug-resistant. Prophages were identified as the primary vehicle for antibiotic resistance genes. Our study demonstrates the public health threat posed by SS4, expanding the understanding of SS4 population structure and pathogenicity characteristics and providing valuable information for its surveillance and prevention.
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Affiliation(s)
- Jinlu Zhu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People’s Republic of China
- Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing, People’s Republic of China
- WOAH Reference Lab for Swine Streptococcosis, Nanjing, People’s Republic of China
| | - Jianping Wang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Weiming Kang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Xiyan Zhang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Anusak Kerdsin
- Faculty of Public Health, Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | - Huochun Yao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People’s Republic of China
- Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing, People’s Republic of China
- WOAH Reference Lab for Swine Streptococcosis, Nanjing, People’s Republic of China
| | - Han Zheng
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth Defect and Cell Regeneration, MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, Shanxi Medical University, Taiyuan, People’s Republic of China
| | - Zongfu Wu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People’s Republic of China
- Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing, People’s Republic of China
- WOAH Reference Lab for Swine Streptococcosis, Nanjing, People’s Republic of China
- Guangdong Provincial Key Laboratory of Research on the Technology of Pig-breeding and Pig-disease Prevention, Guangzhou, People’s Republic of China
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Jiang ZJ, Hong JC, Tang QX, Lin BW, Zhang WQ, Xia H, Yao XP. Streptococcus suis meningoencephalitis diagnosed with metagenomic next-generation sequencing: A case report with literature review. J Infect Chemother 2024; 30:544-547. [PMID: 37992864 DOI: 10.1016/j.jiac.2023.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/10/2023] [Accepted: 11/16/2023] [Indexed: 11/24/2023]
Abstract
Streptococcus suis is a pathogen of emerging zoonotic diseases and meningoencephalitis is the most frequent clinical symptom of S. suis infection in humans. Rapid diagnosis of S. suis meningoencephalitis is critical for the treatment of the disease. While the current routine microbiological tests including bacterial culture and gram staining are poorly sensitive, diagnosis of S. suis meningoencephalitis by metagenomic next-generation sequencing (mNGS) has been rarely reported. Here, we report a 52-year-old female pork food producer with a broken finger developed S. suis meningoencephalitis. After her admission, no pathogenic bacteria were detected through bacterial culture and Gram staining microscopy in the cerebrospinal fluid obtained via lumbar puncture. However, mNGS identified the presence of S. suis in the sample. mNGS is a promising diagnostic tool for rapid diagnosis of rare infectious diseases in the central nervous system.
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Affiliation(s)
- Zai-Jie Jiang
- Department of Neurology and Institute of Neurology of First Affiliated Hospital, Institute of Neuroscience, and Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, 350005, China
| | - Jian-Chen Hong
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, China
| | - Qing-Xi Tang
- Department of Neurology and Institute of Neurology of First Affiliated Hospital, Institute of Neuroscience, and Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, 350005, China
| | - Bi-Wei Lin
- Department of Neurology and Institute of Neurology of First Affiliated Hospital, Institute of Neuroscience, and Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, 350005, China
| | - Wei-Qing Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, China
| | - Han Xia
- Hugobiotech Co., Ltd, Beijing, China
| | - Xiang-Ping Yao
- Department of Neurology and Institute of Neurology of First Affiliated Hospital, Institute of Neuroscience, and Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, 350005, China; Department of Neurology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China.
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Jiang S, Tan X, Shu F, Xu M, Cai J, Zhang H. Cochlear implantation for rare Streptococcus suis meningitis with hearing loss. Eur Arch Otorhinolaryngol 2024:10.1007/s00405-024-08730-w. [PMID: 38758241 DOI: 10.1007/s00405-024-08730-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 05/07/2024] [Indexed: 05/18/2024]
Abstract
OBJECTIVES This study aimed to explore the diagnostic sensitivity of 3D heavily weighted T2-weighted MRI (T2MRI) and high-resolution computed tomography (HRCT) in patients with cochlear fibrosis associated with Streptococcus suis (S. suis) meningitis and the practicality of Cochlear implantation (CI) treatments. METHODS Between January 2020 and December 2022, we enrolled four patients with rare cochlear S. suis meningitis with associated hearing loss despite aggressive or non-aggressive follow-up antibiotic treatment. Clinical imaging data, surgical performances and post-surgical-electrode impedance were evaluated. RESULTS Combined with HRCT and T2MRI, the cochlea had varying degrees of fibrosis and ossification in different cases. However, the electrodes were successfully and wholly inserted after intraoperative removal of the ossified and fibrotic foci. Post-surgical electrode impedance values of MP1 + 2 mode were normal in all 4 cases at initial activation. CONCLUSION In patients with S. suis meningitis and associated cochlear fibrosis, T2MRI examination of the inner ear was more sensitive than HRCT. This research highlights the feasibility of CI treatment in S. suis meningitis patients with severe cochlear fibrosis.
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Affiliation(s)
- Shanshan Jiang
- Department of Otolaryngology Head & Neck Surgery, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue Middle Road, Guangzhou, 510282, China
- Ear Institude of Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Xinyuan Tan
- Department of Otolaryngology Head & Neck Surgery, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue Middle Road, Guangzhou, 510282, China
- Ear Institude of Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Fan Shu
- Department of Otolaryngology Head & Neck Surgery, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue Middle Road, Guangzhou, 510282, China
- Ear Institude of Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Muqing Xu
- Department of Otolaryngology Head & Neck Surgery, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue Middle Road, Guangzhou, 510282, China
- Ear Institude of Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Jieqing Cai
- Department of Otolaryngology Head & Neck Surgery, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue Middle Road, Guangzhou, 510282, China
- Ear Institude of Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Hongzheng Zhang
- Department of Otolaryngology Head & Neck Surgery, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue Middle Road, Guangzhou, 510282, China.
- Ear Institude of Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
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Liu T, Liu H, Jia Y. Streptococcus suis meningitis in China: a case report. Front Public Health 2024; 12:1369703. [PMID: 38808002 PMCID: PMC11130402 DOI: 10.3389/fpubh.2024.1369703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 04/24/2024] [Indexed: 05/30/2024] Open
Abstract
Introduction Streptococcus suis is one of the porcine pathogens that have recently emerged as a pathogen capable of causing zoonoses in some humans. Patients infected with S. suis can present with sepsis, meningitis, or arthritis. Compared to common pathogens, such as Meningococcus, Streptococcus pneumoniae, and Haemophilus influenzae, S. suis infections in humans have been reported only rarely. Methods This case report described a 57-year-old man who presented with impaired consciousness and fever following several days of backache. He was a butcher who worked in an abattoir and had wounded his hands 2 weeks prior. The patient was dependent on alcohol for almost 40 years. S. suis was detected in the cerebrospinal fluid by metagenomic next-generation sequencing. Although he received adequate meropenem and low-dose steroid therapy, the patient suffered from bilateral sudden deafness after 5 days of the infection. The final diagnosis was S. suis meningitis and sepsis. Results The patient survived with hearing loss in both ears and dizziness at the 60-day follow-up. Discussion We reported a case of S. suis infection manifested as purulent meningitis and sepsis. Based on literature published worldwide, human S. suis meningitis shows an acute onset and rapid progression in the nervous system. Similar to bacterial meningitis, effective antibiotics, and low-dose steroids play important roles in the treatment of human S. suis meningitis.
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Affiliation(s)
- Tiantian Liu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hengfang Liu
- Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanjie Jia
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Dong J, Zhang Q, Yang J, Zhao Y, Miao Z, Pei S, Qin H, Jing C, Wen G, Zhang A, Tao P. BacScan: a novel genome-wide strategy for uncovering broadly immunogenic proteins in bacteria. Front Immunol 2024; 15:1392456. [PMID: 38779673 PMCID: PMC11109440 DOI: 10.3389/fimmu.2024.1392456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/15/2024] [Indexed: 05/25/2024] Open
Abstract
In response to the global threat posed by bacterial pathogens, which are the second leading cause of death worldwide, vaccine development is challenged by the diversity of bacterial serotypes and the lack of immunoprotection across serotypes. To address this, we introduce BacScan, a novel genome-wide technology for the rapid discovery of conserved highly immunogenic proteins (HIPs) across serotypes. Using bacterial-specific serum, BacScan combines phage display, immunoprecipitation, and next-generation sequencing to comprehensively identify all the HIPs in a single assay, thereby paving the way for the development of universally protective vaccines. Our validation of this technique with Streptococcus suis, a major pathogenic threat, led to the identification of 19 HIPs, eight of which conferred 20-100% protection against S. suis challenge in animal models. Remarkably, HIP 8455 induced complete immunity, making it an exemplary vaccine target. BacScan's adaptability to any bacterial pathogen positions it as a revolutionary tool that can expedite the development of vaccines with broad efficacy, thus playing a critical role in curbing bacterial transmission and slowing the march of antimicrobial resistance.
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Affiliation(s)
- Junhua Dong
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Ministry of Agriculture and Rural Affairs, Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China
- Hubei Hongshan Lab, Wuhan, Hubei, China
| | - Qian Zhang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Ministry of Agriculture and Rural Affairs, Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China
- Hubei Hongshan Lab, Wuhan, Hubei, China
| | - Jinyue Yang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Ministry of Agriculture and Rural Affairs, Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China
- Hubei Hongshan Lab, Wuhan, Hubei, China
| | - Yacan Zhao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Ministry of Agriculture and Rural Affairs, Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China
- Hubei Hongshan Lab, Wuhan, Hubei, China
| | - Zhuangxia Miao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Ministry of Agriculture and Rural Affairs, Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China
- Hubei Hongshan Lab, Wuhan, Hubei, China
| | - Siyang Pei
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Ministry of Agriculture and Rural Affairs, Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China
- Hubei Hongshan Lab, Wuhan, Hubei, China
| | - Huan Qin
- College of Life Science, Wuhan University, Wuhan, Hubei, China
| | - Changwei Jing
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Ministry of Agriculture and Rural Affairs, Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China
- Hubei Hongshan Lab, Wuhan, Hubei, China
| | - Guoyuan Wen
- Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, China
| | - Anding Zhang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Ministry of Agriculture and Rural Affairs, Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China
- Hubei Hongshan Lab, Wuhan, Hubei, China
| | - Pan Tao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Ministry of Agriculture and Rural Affairs, Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China
- Hubei Hongshan Lab, Wuhan, Hubei, China
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Wei W, Qiao Z, Qin D, Lan Y. Acute multiple brain infarctions associated with Streptococcus suis infection: a case report. BMC Infect Dis 2024; 24:447. [PMID: 38671388 PMCID: PMC11046750 DOI: 10.1186/s12879-024-09318-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 04/14/2024] [Indexed: 04/28/2024] Open
Abstract
Streptococcus suis is one of the most common zoonotic pathogens, in humans and can cause meningitis, endocarditis, arthritis and sepsis. Human cases of Streptococcus suis infection have been reported worldwide, and most of those cases occurred in Asia. Hearing loss is the most common sequela of Streptococcus suis meningitis. Streptococcus suis infection complicated with acute cerebral infarction has rarely been reported. Therefore, to provide a reference for this disease, we reported a case of acute multiple brain infarctions associated with Streptococcus suis infection. In our report, a 69yearold male patient had Streptococcus suis meningitis and sepsis, which were associated with multiple acute cerebral infarctions in the pons and bilateral frontotemporal parietal occipital lobes. After treatment, the patient exhibited cognitive impairment, dyspraxia and irritability. There are limited case reports of cerebral infarction associated with Streptococcus suis infection, and further research is needed to determine the best treatment method.
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Affiliation(s)
- Wenxin Wei
- Department of Neurology, Minzu Hospital Affiliated of Guangxi Medical University, Nanning, Guangxi, 530001, China
| | - Zhenhu Qiao
- Department of Neurology, Minzu Hospital Affiliated of Guangxi Medical University, Nanning, Guangxi, 530001, China
| | - Donghua Qin
- Department of Neurology, Minzu Hospital Affiliated of Guangxi Medical University, Nanning, Guangxi, 530001, China
| | - Yu Lan
- Department of Neurology, Minzu Hospital Affiliated of Guangxi Medical University, Nanning, Guangxi, 530001, China.
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Shen B, Tong L, Qiu J, Zhong J, Tong Z, Li X. Suppurative Meningitis Complicated with Arthritis Caused by Streptococcus Suis Infection: A Case Report. Infect Drug Resist 2024; 17:561-569. [PMID: 38375100 PMCID: PMC10875338 DOI: 10.2147/idr.s416341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 01/31/2024] [Indexed: 02/21/2024] Open
Abstract
Background Streptococcus suis (S. suis) is a common gram-positive bacterium in pigs. Its natural infection sites are the upper respiratory tract (especially tonsils and nasal cavity), reproductive tract and digestive tract of pigs. It is a new emerging human and animal disease. A co-morbid pathogen that can cause serious infections in humans, including meningitis, sepsis, septic arthritis, and sometimes deafness. No cases have been reported in Huzhou City, Zhejiang Province, China. Case Presentation A 50-year-old male patient who had Worked as a butcher in a slaughterhouse for 20 years. Admitted to the hospital due to abdominal pain, joint pain, fever, and headache.His condition rapidly worsened causing altered consciousness, drowsiness and developed hearing loss. S. suis induced pyogenic meningitis complicated by arthritis was suspected based on the results of biochemical and culture analysis of the cerebrospinal fluid, and metagenomic next-generation sequencing, The patient's symptoms significantly improved after treatment with antibiotics such as ceftriaxone, meropenem, and linezolid, as well as supportive therapies including steroids and hyperbaric oxygen therapy, and his hearing improved significantly.After about 2 years of follow-up, the hearing was significantly better than before, but hearing impairment still remained. Conclusion Streptococcus suis is endemic in pork-consuming and pig-raising countries, but can occur throughout the world, especially among individuals with occupational exposure to pigs and/or pork, such as slaughterhouse workers, butchers, farmers, etc. Strengthen science education among key groups. This case was diagnosed as Streptococcus suis meningitis combined with arthritis. However, abdominal pain in the early stage of the disease is very rare and is easy to be misdiagnosed. It is necessary to identify whether it is complicated by peritonitis. For hearing loss caused by Streptococcus suis infection, the use of hyperbaric oxygen chamber treatment has obvious therapeutic effects.
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Affiliation(s)
- Bin Shen
- Department of Infectious Diseases, Huzhou Central Hospital, Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou, Zhejiang Province, 313000, People’s Republic of China
| | - Luyuan Tong
- Department of Infectious Diseases, Huzhou Central Hospital, Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou, Zhejiang Province, 313000, People’s Republic of China
| | - Jia Qiu
- Department of Infectious Diseases, Huzhou Central Hospital, Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou, Zhejiang Province, 313000, People’s Republic of China
| | - Jianfeng Zhong
- Department of Infectious Diseases, Huzhou Central Hospital, Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou, Zhejiang Province, 313000, People’s Republic of China
| | - Zhaowei Tong
- Department of Infectious Diseases, Huzhou Central Hospital, Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou, Zhejiang Province, 313000, People’s Republic of China
| | - Xiaofeng Li
- Department of Infectious Diseases, Huzhou Central Hospital, Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou, Zhejiang Province, 313000, People’s Republic of China
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Jin M, Liang S, Wang J, Zhang H, Zhang Y, Zhang W, Liu S, Xie F. Endopeptidase O promotes Streptococcus suis immune evasion by cleaving the host- defence peptide cathelicidins. Virulence 2023; 14:2283896. [PMID: 38010345 PMCID: PMC10732652 DOI: 10.1080/21505594.2023.2283896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/09/2023] [Indexed: 11/29/2023] Open
Abstract
Streptococcus suis is a zoonotic Gram-positive bacterium that causes invasive infections such as sepsis and meningitis, threatening public health worldwide. For successful establishment of infection, the bacterium should subvert the innate effectors of immune defence, including the cathelicidin family of host-defence peptides that combat pathogenic bacteria by directly disrupting cell membranes and coordinating immune responses. Here, our study shows that an extracellular endopeptidase O (PepO) of S. suis contributes to assisting the bacterium to resist cathelicidin-mediated killing, as the deletion of the pepO gene makes S. suis more sensitive to the human cathelicidin LL-37, as well as its mouse equivalent, mCRAMP. This protease targets and cleaves both LL-37 and mCRAMP, degrading them into shorter peptides with only a few amino acids, thereby abrogating their ability to kill S. suis. By cleaving LL-37 and mCRAMP, PepO impairs their chemotactic properties for neutrophil migration and undermines their anti-apoptosis activity, which is required for prolonging neutrophil lifespan. Also, PepO inhibits the ability of LL-37 and mCRAMP to promote lysosome development in macrophages. Moreover, the loss of PepO attenuates organ injury and decreases bacterial burdens in a murine model of S. suis bacteraemia. Taken together, these data provide novel insights into the role of the intrinsic proteolytic characteristics of PepO in S. suis-host interaction. Our findings demonstrate that S. suis utilizes the PepO protease to cleave cathelicidins, which is an immunosuppressive strategy adopted by this bacterium to facilitate pathogenesis.
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Affiliation(s)
- Mingjie Jin
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Siyu Liang
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Jing Wang
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Huihui Zhang
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yueling Zhang
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Wanjiang Zhang
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Siguo Liu
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Fang Xie
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
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Viana PB, Penedos C, Medeiros R, Monte R. Streptococcus suis meningitis in a COVID-19 patient: A case report. Saudi J Anaesth 2023; 17:281-283. [PMID: 37260664 PMCID: PMC10228877 DOI: 10.4103/sja.sja_722_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 06/02/2023] Open
Abstract
Streptococcus suis is a Gram-positive, facultative anaerobic bacterium and has its natural reservoir in pigs. Infection by this microorganism usually manifests in humans as meningitis, endocarditis, sepsis, and/or arthritis after contact with pigs or pork. Meningitis is a very common manifestation and Streptococcus suis may be considered its second most common cause. A clinical course may manifest acutely or with a more chronic course. Streptococcus suis is endemic in pork-consuming and pig-rearing countries, but may occur all over the world, especially in individuals with occupational exposure to pigs and/or pork, such as abattoir workers, butchers, and farmers. Most infections are observed in adults without preexisting diseases. We report a case of Streptococcus suis meningitis in a healthy patient with occupational exposure and with an asymptomatic infection by severe acute respiratory syndrome coronavirus 2, who was admitted to an intensive care unit in a tertiary hospital in the North of Portugal.
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Affiliation(s)
- Patrícia Bastos Viana
- Serviço de Anestesiologia, Centro Hospitalar e Universitário do Porto, Porto, Portugal
| | - Constança Penedos
- Serviço de Anestesiologia, Centro Hospitalar e Universitário do Porto, Porto, Portugal
| | - Rita Medeiros
- Serviço de Cuidados Intensivos, Centro Hospitalar e Universitário do Porto, Porto, Portugal
| | - Raquel Monte
- Serviço de Anestesiologia, Centro Hospitalar e Universitário do Porto, Porto, Portugal
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Deng S, Lin B, Weng B, Yang H, Zhou K, Wu L, Qin L, Pan L. Clinical Characteristics and Follow-up of Cases of Streptococcus suis Meningitis in Patients of Liuzhou, China. Am J Trop Med Hyg 2023; 108:477-481. [PMID: 36689947 PMCID: PMC9978568 DOI: 10.4269/ajtmh.22-0515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 11/11/2022] [Indexed: 01/24/2023] Open
Abstract
We analyzed the clinical characteristics and outcomes of patients with Streptococcus suis meningitis in Liuzhou, China, to improve diagnostic accuracy and lower the chances of misdiagnosis. The major clinical manifestations, auxiliary examination results, treatment strategies, treatment efficacy, and follow-up results of 17 consecutively admitted patients with S. suis meningitis were evaluated. The most common clinical manifestations were fever (15/17), sensorineural hearing loss (13/17), headache (11/17), and altered mental status (8/17). In addition, 64.71% of the patients had residual symptoms of sensorineural hearing loss at discharge, and moderate disabilities occurred in 68.75% of the patients in the form of sensorineural deafness (11/17) and hemiparesis (1/17). The cerebrospinal fluid (CSF) of nine patients was used for metagenomic analysis with next-generation sequencing. The metagenomic analysis of CSF of four patients was positive, whereas blood and CSF cultures were negative. The average modified Rankin Scale (mRS) and Activities of Daily Living (ADL) scores improved significantly at the 6-month follow-up compared with those at admission (P < 0.05). There was no correlation between altered mRS and ADL scores and the CSF findings (P > 0.05). Early administration of antibiotics can prevent sensorineural hearing loss. Early CSF metagenomic analysis may be superior to blood and CSF culture.
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Affiliation(s)
- Shan Deng
- Department of Neurology, The Fourth Affiliated Hospital of Guangxi Medical University/Liuzhou Workers’ Hospital, Liuzhou, China
| | - Baoquan Lin
- Department of Neurology, The Fourth Affiliated Hospital of Guangxi Medical University/Liuzhou Workers’ Hospital, Liuzhou, China
| | - Baohui Weng
- Department of Neurology, The Fourth Affiliated Hospital of Guangxi Medical University/Liuzhou Workers’ Hospital, Liuzhou, China
| | - Hong Yang
- Department of Neurology, The Fourth Affiliated Hospital of Guangxi Medical University/Liuzhou Workers’ Hospital, Liuzhou, China
| | - Kejian Zhou
- Department of Neurology, The Fourth Affiliated Hospital of Guangxi Medical University/Liuzhou Workers’ Hospital, Liuzhou, China
| | - Liya Wu
- Department of Neurology, The Fourth Affiliated Hospital of Guangxi Medical University/Liuzhou Workers’ Hospital, Liuzhou, China
| | - Lu Qin
- Department of Neurology, The Fourth Affiliated Hospital of Guangxi Medical University/Liuzhou Workers’ Hospital, Liuzhou, China
| | - Liya Pan
- Department of Neurology, The Fourth Affiliated Hospital of Guangxi Medical University/Liuzhou Workers’ Hospital, Liuzhou, China
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11
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Niu K, Meng Y, Liu M, Ma Z, Lin H, Zhou H, Fan H. Phosphorylation of GntR reduces Streptococcus suis oxidative stress resistance and virulence by inhibiting NADH oxidase transcription. PLoS Pathog 2023; 19:e1011227. [PMID: 36913374 PMCID: PMC10010549 DOI: 10.1371/journal.ppat.1011227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 02/21/2023] [Indexed: 03/14/2023] Open
Abstract
GntR transcription factor of Streptococcus suis serotype 2 (SS2) is a potential substrate protein of STK, but the regulation mechanisms of GntR phosphorylation are still unclear. This study confirmed that STK phosphorylated GntR in vivo, and in vitro phosphorylation experiments showed that STK phosphorylated GntR at Ser-41. The phosphomimetic strain (GntR-S41E) had significantly reduced lethality in mice and reduced bacterial load in the blood, lung, liver, spleen, and brain of infected mice compared to wild-type (WT) SS2. Electrophoretic mobility shift assay (EMSA) and chromatin immunoprecipitation (ChIP) experiments demonstrated that the promoter of nox was bound by GntR. The phosphomimetic protein GntR-S41E cannot bind to the promoter of nox, and the nox transcription levels were significantly reduced in the GntR-S41E mutant compared to WT SS2. The virulence in mice and the ability to resist oxidative stress of the GntR-S41E strain were restored by complementing transcript levels of nox. NOX is an NADH oxidase that catalyzes the oxidation of NADH to NAD+ with the reduction of oxygen to water. We found that NADH is likely accumulated under oxidative stress in the GntR-S41E strain, and higher NADH levels resulted in increased amplified ROS killing. In total, we report GntR phosphorylation could inhibit the transcription of nox, which impaired the ability of SS2 to resist oxidative stress and virulence.
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Affiliation(s)
- Kai Niu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yu Meng
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Mingxing Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Zhe Ma
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China
| | - Huixing Lin
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China
| | - Hong Zhou
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China
| | - Hongjie Fan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China
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12
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Brizuela J, Kajeekul R, Roodsant TJ, Riwload A, Boueroy P, Pattanapongpaibool A, Thaipadungpanit J, Jenjaroenpun P, Wongsurawat T, Batty EM, van der Putten BCL, Schultsz C, Kerdsin A. Streptococcus suis outbreak caused by an emerging zoonotic strain with acquired multi-drug resistance in Thailand. Microb Genom 2023; 9:mgen000952. [PMID: 36790403 PMCID: PMC9997742 DOI: 10.1099/mgen.0.000952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
Streptococcus suis is an emerging zoonotic swine pathogen which can cause severe infections in humans. In March 2021, an outbreak of S. suis infections with 19 confirmed cases of septicemia and meningitis leading to two deaths, occurred in Nakhon Ratchasima province, Thailand. We characterized the outbreak through an epidemiological investigation combined with Illumina and Nanopore whole genome sequencing (WGS). The source of the outbreak was traced back to a raw pork dish prepared from a single pig during a Buddhist ceremony attended by 241 people. WGS analysis revealed that a single S. suis serotype 2 strain belonging to a novel sequence type (ST) of the emergent Thai zoonotic clade CC233/379, was responsible for the infections. The outbreak clone grouped together with other Thai zoonotic strains from CC233/379 and CC104 in a global S. suis phylogeny and capsule switching events between serotype 2 zoonotic strains and serotype 7 porcine strains were identified. The outbreak strain showed reduced susceptibility to penicillin corresponding with mutations in key residues in the penicillin binding proteins (PBPs). Furthermore, the outbreak strain was resistant to tetracycline, erythromycin, clindamycin, linezolid and chloramphenicol, having acquired an integrative and conjugative element (ICE) carrying resistance genes tetO and ermB, as well as a transposon from the IS1216 family carrying optrA and ermA. This investigation demonstrates that multi-drug resistant zoonotic lineages of S. suis which pose a threat to human health continue to emerge.
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Affiliation(s)
- Jaime Brizuela
- Amsterdam UMC location University of Amsterdam, Department of Global Health, Amsterdam Institute for Global Health and Development, Paasheuvelweg 25, Amsterdam, The Netherlands.,Amsterdam UMC location University of Amsterdam, Department of Medical Microbiology and Infection Prevention, Meibergdreef 9, Amsterdam, The Netherlands
| | - Rattagan Kajeekul
- Department of Medicine, Maharat Nakhon Ratchasima Hospital, Nakhon Ratchasima, Thailand
| | - Thomas J Roodsant
- Amsterdam UMC location University of Amsterdam, Department of Global Health, Amsterdam Institute for Global Health and Development, Paasheuvelweg 25, Amsterdam, The Netherlands.,Amsterdam UMC location University of Amsterdam, Department of Medical Microbiology and Infection Prevention, Meibergdreef 9, Amsterdam, The Netherlands
| | - Athita Riwload
- Clinical Microbiology Laboratory, Department of Medical Technology, Maharat Nakhon Ratchasima Hospital, Nakhon Ratchasima, Thailand
| | - Parichart Boueroy
- Faculty of Public Health, Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | | | - Janjira Thaipadungpanit
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Piroon Jenjaroenpun
- Division of Bioinformatics and Data Management for Research, Department of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Thidathip Wongsurawat
- Division of Bioinformatics and Data Management for Research, Department of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Elizabeth M Batty
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Boas C L van der Putten
- Amsterdam UMC location University of Amsterdam, Department of Global Health, Amsterdam Institute for Global Health and Development, Paasheuvelweg 25, Amsterdam, The Netherlands.,Amsterdam UMC location University of Amsterdam, Department of Medical Microbiology and Infection Prevention, Meibergdreef 9, Amsterdam, The Netherlands
| | - Constance Schultsz
- Amsterdam UMC location University of Amsterdam, Department of Global Health, Amsterdam Institute for Global Health and Development, Paasheuvelweg 25, Amsterdam, The Netherlands.,Amsterdam UMC location University of Amsterdam, Department of Medical Microbiology and Infection Prevention, Meibergdreef 9, Amsterdam, The Netherlands
| | - Anusak Kerdsin
- Faculty of Public Health, Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
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13
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Kittiwan N, Calland JK, Mourkas E, Hitchings MD, Murray S, Tadee P, Tadee P, Duangsonk K, Meric G, Sheppard SK, Patchanee P, Pascoe B. Genetic diversity and variation in antimicrobial-resistance determinants of non-serotype 2 Streptococcus suis isolates from healthy pigs. Microb Genom 2022; 8:mgen000882. [PMID: 36326658 PMCID: PMC9836093 DOI: 10.1099/mgen.0.000882] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Streptococcus suis is a leading cause of bacterial meningitis in South-East Asia, with frequent zoonotic transfer to humans associated with close contact with pigs. A small number of invasive lineages are responsible for endemic infection in the swine industry, causing considerable global economic losses. A lack of surveillance and a rising trend in clinical treatment failure has raised concerns of growing antimicrobial resistance (AMR) among invasive S. suis. Gene flow between healthy and disease isolates is poorly understood and, in this study, we sample and sequence a collection of isolates predominantly from healthy pigs in Chiang Mai province, Northern Thailand. Pangenome characterization identified extensive genetic diversity and frequent AMR carriage in isolates from healthy pigs. Multiple AMR genes were identified, conferring resistance to aminoglycosides, lincosamides, tetracycline and macrolides. All isolates were non-susceptible to three or more different antimicrobial classes, and 75 % of non-serotype 2 isolates were non-susceptible to six or more classes (compared to 37.5 % of serotype 2 isolates). AMR genes were found on integrative and conjugative elements previously observed in other species, suggesting a mobile gene pool that can be accessed by invasive disease isolates. This article contains data hosted by Microreact.
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Affiliation(s)
- Nattinee Kittiwan
- Department of Food Animal Clinics, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand,Integrative Research Centre for Veterinary Preventive Medicine, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand,Veterinary Research and Development Center (Upper Northern Region), Hang Chat, Lampang 52190, Thailand
| | - Jessica K. Calland
- Oslo Centre for Biostatistics and Epidemiology, Oslo University Hospital, Oslo, Norway
| | - Evangelos Mourkas
- Ineos Oxford Institute for Antimicrobial Research, Department of Biology, University of Oxford, South Parks Road, Oxford, UK
| | - Matthew D. Hitchings
- Swansea University Medical School, Swansea University, Singleton Park, Swansea, UK
| | - Susan Murray
- Swansea University Medical School, Swansea University, Singleton Park, Swansea, UK,Present address: Pathogen Genomics Unit, Public Health Wales, Cardiff, Wales, UK
| | - Pakpoom Tadee
- Department of Food Animal Clinics, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand,Integrative Research Centre for Veterinary Preventive Medicine, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Phacharaporn Tadee
- Faculty of Animal Science and Technology, Maejo University, Chiang Mai 50290, Thailand
| | - Kwanjit Duangsonk
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Guillaume Meric
- Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath, UK,Present address: Cambridge Baker Systems Genomics Initiative, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Samuel K. Sheppard
- Ineos Oxford Institute for Antimicrobial Research, Department of Biology, University of Oxford, South Parks Road, Oxford, UK,Faculty of Allied Medical Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Prapas Patchanee
- Department of Food Animal Clinics, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand,Integrative Research Centre for Veterinary Preventive Medicine, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand,*Correspondence: Prapas Patchanee,
| | - Ben Pascoe
- Integrative Research Centre for Veterinary Preventive Medicine, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand,Ineos Oxford Institute for Antimicrobial Research, Department of Biology, University of Oxford, South Parks Road, Oxford, UK,Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath, UK,Centre for Genomic Pathogen Surveillance, Big Data Institute, University of Oxford, Old Road Campus, Oxford, UK,*Correspondence: Ben Pascoe,
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14
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Xing W, Zhang W, Zhu M, He J. Streptococcus suis meningitis complicated with acute cerebral infarction: A case report. Heliyon 2022; 8:e10418. [PMID: 36082324 PMCID: PMC9445292 DOI: 10.1016/j.heliyon.2022.e10418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 08/10/2022] [Accepted: 08/19/2022] [Indexed: 11/27/2022] Open
Abstract
A case of suppurative meningitis complicated with acute cerebral infarction caused by Streptococcus suis was reported to provide reference for the diagnosis and treatment of Streptococcus suis infection. The diagnosis, treatment, follow-up and epidemiological materials in the case of suppurative meningitis complicated with acute cerebral infarction caused by Streptococcus suis in Heyuan People’s Hospital were reviewed, and the relevant literature was reviewed. The clinical manifestations of this case were headache and fever, which progressed rapidly. After effective anti-infection treatment, the patient improved and discharged from the hospital, but there was profound hearing impairment.
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15
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Wu T, Jia L, Lei S, Jiang H, Liu J, Li N, Langford PR, Liu H, Lei L. Host HSPD1 Translocation from Mitochondria to the Cytoplasm Induced by Streptococcus suis Serovar 2 Enolase Mediates Apoptosis and Loss of Blood–Brain Barrier Integrity. Cells 2022; 11:cells11132071. [PMID: 35805155 PMCID: PMC9265368 DOI: 10.3390/cells11132071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 02/01/2023] Open
Abstract
Streptococcus suis serovar 2 (S. suis serovar 2) is a zoonotic pathogen that causes meningitis in pigs and humans, and is a serious threat to the swine industry and public health. Understanding the mechanism(s) by which S. suis serovar 2 penetrates the blood–brain barrier (BBB) is crucial to elucidating the pathogenesis of meningitis. In a previous study, we found that expression of the virulence factor enolase (Eno) by S. suis serovar 2 promotes the expression of host heat shock protein family D member 1 (HSPD1) in brain tissue, which leads to the apoptosis of porcine brain microvascular endothelial cells (PBMECs) and increased BBB permeability, which in turn promotes bacterial translocation across the BBB. However, the mechanism by which HSPD1 mediates Eno-induced apoptosis remains unclear. In this study, we demonstrate that Eno promotes the translocation of HSPD1 from mitochondria to the cytoplasm, where HSPD1 binds to β-actin (ACTB), the translocated HSPD1, and its interaction with ACTB led to adverse changes in cell morphology and promoted the expression of apoptosis-related proteins, second mitochondria-derived activator of caspases (Smac), and cleaved caspase-3; inhibited the expression of X-linked inhibitor of apoptosis protein (XIAP); and finally promoted cell apoptosis. These results further elucidate the role of HSPD1 in the process of Eno-induced apoptosis and increased BBB permeability, increasing our understanding of the pathogenic mechanisms of meningitis, and providing a framework for novel therapeutic strategies.
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Affiliation(s)
- Tong Wu
- State Key Laboratory for Zoonotic Diseases/Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, China; (T.W.); (L.J.); (H.J.); (J.L.); (N.L.)
| | - Li Jia
- State Key Laboratory for Zoonotic Diseases/Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, China; (T.W.); (L.J.); (H.J.); (J.L.); (N.L.)
| | - Siyu Lei
- School of Basic Medicine, Jilin University, Changchun 130021, China;
| | - Hexiang Jiang
- State Key Laboratory for Zoonotic Diseases/Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, China; (T.W.); (L.J.); (H.J.); (J.L.); (N.L.)
| | - Jianan Liu
- State Key Laboratory for Zoonotic Diseases/Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, China; (T.W.); (L.J.); (H.J.); (J.L.); (N.L.)
| | - Na Li
- State Key Laboratory for Zoonotic Diseases/Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, China; (T.W.); (L.J.); (H.J.); (J.L.); (N.L.)
| | - Paul R. Langford
- Section of Paediatric Infectious Disease, Imperial College London, London W2 1NY, UK;
| | - Hongtao Liu
- State Key Laboratory for Zoonotic Diseases/Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, China; (T.W.); (L.J.); (H.J.); (J.L.); (N.L.)
- Correspondence: (H.L.); (L.L.)
| | - Liancheng Lei
- State Key Laboratory for Zoonotic Diseases/Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, China; (T.W.); (L.J.); (H.J.); (J.L.); (N.L.)
- Department of Veterinary Medicine, College of Animal Science, Yangtze University, Jingzhou 434023, China
- Correspondence: (H.L.); (L.L.)
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16
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Sui Y, Chen Y, Lv Q, Zheng Y, Kong D, Jiang H, Huang W, Ren Y, Liu P, Jiang Y. Suilyin Disrupts the Blood-Brain Barrier by Activating Group III Secretory Phospholipase A2. LIFE (BASEL, SWITZERLAND) 2022; 12:life12060919. [PMID: 35743951 PMCID: PMC9229629 DOI: 10.3390/life12060919] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/25/2022] [Accepted: 06/02/2022] [Indexed: 11/16/2022]
Abstract
Serious diseases caused by Streptococcus suis serotype 2 (S. suis 2) include septicaemia and meningitis, which are associated with high morbidity and mortality. Proliferation in the blood can result in a breach of the blood-brain barrier (BBB) and provide entry into the cerebrospinal fluid (CSF), where bacteria cause inflammation of the meningeal membranes resulting in meningitis. The molecular mechanisms of how this pathogen crosses the BBB remain unclear. Suilysin (SLY) has been identified as an important secreted virulence factor of S. suis 2 and may play a vital role in provoking meningitis. In this investigation, we demonstrate that SLY can increase the paracellular permeability of BBB, both in vivo and in vitro, via the activation of group III secretory phospholipase A2 (PLA2G3). Our results indicate that at lower, sublytic concentrations, the toxin can stimulate cerebral microvascular endothelial cells to release TNF-α, thereby inducing high level expressions of PLA2G3. Abnormal elevations of PLA2G3 might further injure tissues through direct cytolytic effectors or other responses.
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Affiliation(s)
- Yutong Sui
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, China; (Y.S.); (Q.L.); (Y.Z.); (D.K.); (H.J.); (W.H.); (Y.R.)
| | - Ying Chen
- School of Light Industry, Beijing Technology and Business University (BTBU), Beijing 100048, China;
| | - Qingyu Lv
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, China; (Y.S.); (Q.L.); (Y.Z.); (D.K.); (H.J.); (W.H.); (Y.R.)
| | - Yuling Zheng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, China; (Y.S.); (Q.L.); (Y.Z.); (D.K.); (H.J.); (W.H.); (Y.R.)
| | - Decong Kong
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, China; (Y.S.); (Q.L.); (Y.Z.); (D.K.); (H.J.); (W.H.); (Y.R.)
| | - Hua Jiang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, China; (Y.S.); (Q.L.); (Y.Z.); (D.K.); (H.J.); (W.H.); (Y.R.)
| | - Wenhua Huang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, China; (Y.S.); (Q.L.); (Y.Z.); (D.K.); (H.J.); (W.H.); (Y.R.)
| | - Yuhao Ren
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, China; (Y.S.); (Q.L.); (Y.Z.); (D.K.); (H.J.); (W.H.); (Y.R.)
| | - Peng Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, China; (Y.S.); (Q.L.); (Y.Z.); (D.K.); (H.J.); (W.H.); (Y.R.)
- Correspondence: (P.L.); (Y.J.)
| | - Yongqiang Jiang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, China; (Y.S.); (Q.L.); (Y.Z.); (D.K.); (H.J.); (W.H.); (Y.R.)
- Correspondence: (P.L.); (Y.J.)
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17
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Savcheniuk MO, Tarasov OA, Zakharova OM, Korniienko LY, Zotsenko VM, Tsarenko TM. Detection of Streptococcus suis using the optimized real-time polymerase chain reaction protocol. REGULATORY MECHANISMS IN BIOSYSTEMS 2022. [DOI: 10.15421/022221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The article presents the results of studies on the detection of Streptococcus suis by real-time polymerase chain reaction. Isolation and species identification of the studied isolates of streptococci was carried out according to morphological, cultural, biochemical and biological properties by conventional methods. The study of cultural characteristics of growth was carried out using conventional bacteriological methods on the brain heart infusion broth (BHI) and BHI agar with the addition of 5% sheep blood (blood BHI agar). To confirm biochemical properties as a confirmatory method, API 20 STREP test kit (bioMerieux, France) was used. In addition, to differentiate S. suis from the non-pathogenic species of streptococci, the hemolysis test was used. As a result of the studies, it was found that the use of the real-time PCR (polymerase chain reaction) method makes it possible to detect S. suis in an amount of 1 x 104 genome copies in the sample. All described validation parameters for the qualitative detection of S. suis DNA by real-time PCR meet international requirements, which guarantees accurate and reliable results. In Ukraine only a diagnostic test kit for convential PCR has been developed for the detection of swine streptococcosis. This approach is more time consuming and complex in comparison with the real-time PCR approach. We recommend that diagnostic laboratories implement this method in their practice. This will increase the number of effective diagnostic tools available to veterinarians on pig farms when they order laboratory tests. The high analytical sensitivity limit of a test is an essential parameter when screening is the focus, and obtaining false negative results causes a risk of the development of infection process among pig populations within infected herds. Our study showed that microbiological diagnostic methods to determine morphological and cultural properties can identify S. suis at the genus level. Determination of biochemical properties using the API 20 STREP test kit can be used to identify S. suis 1 and 2 serotypes. The conventional method and real-time PCR have 100% specificity and can be used to identify S. suis of different serotypes. Real-time PCR is a 2 to 4 times more sensitive limit than conventional PCR depending on the serotype being studied, and can be used to more accurately identify streptococcal DNA. It was found that the use of the real-time PCR method makes it possible to detect S. suis in an amount of 1 x 104 copies of the genome in the sample. Additionally, it was found that all the studied validation parameters of the qualitative method for determining S. suis DNA by real-time PCR meet international requirements, which guarantees accurate and reliable results.
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18
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Tarini N, Susilawathi N, Sudewi A, Soejitno A, Fatmawati N, Mayura I, Lestari A, Suputra G, Subrata I, Astiti C, Besung I, Mahardika G. A large cluster of human infections of Streptococcus suis in Bali, Indonesia. One Health 2022; 14:100394. [PMID: 35686153 PMCID: PMC9171533 DOI: 10.1016/j.onehlt.2022.100394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 05/01/2022] [Accepted: 05/02/2022] [Indexed: 11/27/2022] Open
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19
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Xu L, Wang X, Lei Z, Zhu J, Pang Y, Liu J. Spinal canal infection caused by Streptococcus suis in human: a case report. BMC Infect Dis 2022; 22:369. [PMID: 35413851 PMCID: PMC9003998 DOI: 10.1186/s12879-022-07353-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 04/05/2022] [Indexed: 11/10/2022] Open
Abstract
Background Streptococcus suis is an emerging zoonotic pathogen that mainly causes meningitis, sepsis, arthritis, endocarditis, and endophthalmitis in human. To the best of our knowledge, Spinal canal infection caused by Streptococcus suis has rarely been reported. Case presentation Here we report a case of spinal canal infection caused by Streptococcus suis in a 50-year-old male patient. The patient had a history of close contact with sick pigs days before disease onset. Initially he presented with headache and fever. After admission, the patient began to experience lower back pain, which led physicians to perform a lumber puncture. Meta-genomic next generation sequencing helped identify Streptococcus suis in the cerebrospinal fluid. MRI imaging indicated a spinal canal infection caused by Streptococcus suis. Conclusions Spinal canal infection is an uncommon disease of Streptococcus suis infection. This case report indicates that people presented with fever, headache and lower back pain should also be suspected as Streptococcus suis infection, especially for those who have had a history of sick pig contact.
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Affiliation(s)
- Lejia Xu
- Department of Pharmacy, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Xiaoyun Wang
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Sun Yat-Sen University, Guangzhou, 510080, China
| | - Ziying Lei
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Key Laboratory of Tropical Disease Control, Sun Yat-Sen University, Ministry of Education, Guangzhou, 510080, Guangdong, China
| | - Jianyun Zhu
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Key Laboratory of Tropical Disease Control, Sun Yat-Sen University, Ministry of Education, Guangzhou, 510080, Guangdong, China
| | - Yihua Pang
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Key Laboratory of Tropical Disease Control, Sun Yat-Sen University, Ministry of Education, Guangzhou, 510080, Guangdong, China
| | - Jing Liu
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China. .,Key Laboratory of Tropical Disease Control, Sun Yat-Sen University, Ministry of Education, Guangzhou, 510080, Guangdong, China.
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20
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Maramattom BV, Ram SA, Warrier A, Babu R. Sui(s) Generis: A Unique Meningitis. Ann Indian Acad Neurol 2022; 25:305-306. [PMID: 35693674 PMCID: PMC9175423 DOI: 10.4103/aian.aian_261_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 07/18/2021] [Accepted: 08/25/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
| | - S Ananth Ram
- Department of Neurology, Aster Medcity, Kochi, Kerala, India
| | - Anup Warrier
- Department of Infectious Disease, Aster Medcity, Kochi, Kerala, India
| | - Rachana Babu
- Department of Microbiology, Aster Medcity, Kochi, Kerala, India
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21
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Romay-Lema EM, Ventura-Valcárcel P, Iñiguez-Vázquez I, García-Pais MJ, Garcia-Garrote F, Rabuñal-Rey R, Alonso MP, Corredoira-Sánchez J. Streptococcus suis spondylodiscitis: 2 new cases and a literature review. ENFERMEDADES INFECCIOSAS Y MICROBIOLOGIA CLINICA (ENGLISH ED.) 2022; 40:66-70. [PMID: 34866038 DOI: 10.1016/j.eimce.2021.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/10/2020] [Accepted: 08/12/2020] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Streptococcus suis (S. suis) infection is poorly described zoonosis in our country, which is related with exposure to pigs or their meat. The most common clinical presentation is meningitis, while spine's involvement is rare. METHODS We report 2 cases of S. suis infection and perform a systematic review of the articles published on S. suis spondylodiscitis between January 1994 and May 2020 with the aim of defining the clinical characteristics, predisposing factors and evolution. RESULTS 17 cases are described, 76.5% males with a mean age of 57.6 years, generally without associated underlying disease. Enolism was a factor present in 17.6%. 70.6% had exposure to pigs or their meat and 20% hand injuries. The mean duration of symptoms was 10.2 days and the most affected segment was the lumbar level. 70.6% had meningitis. All were treated with beta-lactams with an average duration of 53.2 days. There was a recurrence and none died. CONCLUSION There are few cases of S. suis spondylodiscitis in the literature. When occurs, it is associated with another type of infection in most cases. They present a good response to medical treatment and a good prognosis.
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Affiliation(s)
- Eva-María Romay-Lema
- Unidad de Enfermedades Infecciosas, Hospital Universitario Lucus Augusti, Lugo, Spain.
| | | | | | | | | | - Ramón Rabuñal-Rey
- Unidad de Enfermedades Infecciosas, Hospital Universitario Lucus Augusti, Lugo, Spain
| | - María Pilar Alonso
- Servicio de Microbiología, Hospital Universitario Lucus Augusti, Lugo, Spain
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22
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Interleukin-17A Contributed to the Damage of Blood-CNS Barriers During Streptococcus suis Meningitis. Mol Neurobiol 2022; 59:2116-2128. [PMID: 35044625 DOI: 10.1007/s12035-022-02749-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 01/11/2022] [Indexed: 12/26/2022]
Abstract
Streptococcus suis (S. suis) is an emerging zoonotic agent that can cause meningitis in humans with high mortality and morbidity. Meningitic S. suis can induce higher level of IL-17 than non-meningitic S. suis. Besides, IL-17A plays various roles on bacterial clearance or disruption of blood-CNS barriers through the downregulation and reorganization of tight junction (TJ) molecules. However, it remains to be elucidated for the role of IL-17A on the infection with meningitic S. suis. Here, we found that meningitic S. suis infection could not only cause acute death due to the damage of multiple organs, but also cause meningitis and clinical nervous signs since 60 h of post-infection due to the penetration of blood-CNS barriers after lasting bacteremia. In contrast, the mice with deficiency of il17a gene could not significantly change the acute inflammatory response and acute death, but it could not show obvious meningitis and clinical nervous signs caused by the meningitic S. suis infection. In addition, we also found that IL-17A could inhibit the transcription and expression of TJ proteins that facilitated the leakage of blood-CNS barriers since 60 h of post-infection during meningitic S. suis infection. Thus, our findings demonstrated that IL-17A could downregulate TJ proteins, which undoubtedly facilitated the leakage of blood-CNS barriers for bacterial invasion and then caused S. suis meningitis, providing potential targets for future prevention and treatment of this disease.
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23
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Zhang Y, Liu X, Liu H, Zhang C. Acute Myocardial Infarction as an Initial Symptom of Streptococcus suis Infection: A Case Report. Int Med Case Rep J 2021; 14:783-788. [PMID: 34819755 PMCID: PMC8608246 DOI: 10.2147/imcrj.s335355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 10/31/2021] [Indexed: 11/23/2022] Open
Abstract
Streptococcus suis (S. suis) infection, a zoonotic infection with a global distribution, is clinically manifested by meningitis, followed by sepsis, infective endocarditis and arthritis. S. suis infection is not uncommon, but acute myocardial infarction (AMI), as an initial symptom, has not yet been reported. We report a case of S. suis infection with AMI as an initial symptom. The patient, a previously healthy butcher with no known risk factors for AMI, was admitted to hospital with a sudden onset of AMI. Then, thrombolytic therapy, anticoagulation therapy with nadroparin calcium and antiplatelet therapy with aspirin and ticagrelor were adopted. Two days later, blood cultures in aerobic and anaerobic bottles were positive for S. suis and he received antibiotic therapy with piperacillin/tazobactam. Then, his symptoms improved and he was transferred to a special infectious disease hospital for further treatment and was discharged upon complete recovery. To the best of our knowledge, this is the first reported case of AMI as the initial symptom of S. suis infection, which illustrates a possible new symptom of this important pathogen. For AMI patients with unexplained infections, and who are in close frequent contact with pigs and/or pork products, clinicians should be alert to the possibility of S. suis infections.
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Affiliation(s)
- Yi Zhang
- Clinical Medical College of Jining Medical University, Jining, Shandong, 272013, People's Republic of China
| | - Xinmei Liu
- Department of Cardiac Intensive Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong, 272029, People's Republic of China
| | - Hongsheng Liu
- Department of Cardiac Intensive Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong, 272029, People's Republic of China
| | - Chunying Zhang
- Department of Cardiac Intensive Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong, 272029, People's Republic of China
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24
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Zhu Y, Zhu F, Bo L, Fang Y, Shan X. A rare case of meningitis and septicemia caused by Streptococcus suis in a woman without a history of live pig contact or eating raw pork. Braz J Microbiol 2021; 52:2007-2012. [PMID: 34559387 PMCID: PMC8460845 DOI: 10.1007/s42770-021-00619-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/19/2021] [Indexed: 02/05/2023] Open
Abstract
Streptococcus suis (S. suis) is a zoonotic pathogen that primarily inhabits the upper respiratory tract of pigs. Therefore, pigs that carry these pathogens are the major source of infection. Most patients are infected through contact with live pigs or unprocessed pork products and eating uncooked pork. S. Suis mainly causes sepsis and meningitis. The disease has an insidious onset and rapid progress. The patient becomes critically ill and the mortality is high. In this case report, we described a rare case of S. suis isolated from a middle-aged woman in Jinhua City, Zhejiang Province, China, who did not have any contact with live pigs and had not eaten uncooked pork. S. Suis was isolated from both the patient’s blood and cerebrospinal fluid samples.
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Affiliation(s)
- Yijun Zhu
- Department of Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine (Jinhua Municipal Central Hospital), No 365 Renmin East Road, Jinhua, 321000, Zhejiang Province, China
| | - Fang Zhu
- Department of Pathology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine (Jinhua Municipal Central Hospital), No 365 Renmin East Road, Jinhua, 321000, Zhejiang Province, China.
| | - Lihong Bo
- Department of Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine (Jinhua Municipal Central Hospital), No 365 Renmin East Road, Jinhua, 321000, Zhejiang Province, China
| | - Yinfei Fang
- Department of Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine (Jinhua Municipal Central Hospital), No 365 Renmin East Road, Jinhua, 321000, Zhejiang Province, China
| | - Xiaoyun Shan
- Department of Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine (Jinhua Municipal Central Hospital), No 365 Renmin East Road, Jinhua, 321000, Zhejiang Province, China
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25
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van de Beek D, Brouwer MC, Koedel U, Wall EC. Community-acquired bacterial meningitis. Lancet 2021; 398:1171-1183. [PMID: 34303412 DOI: 10.1016/s0140-6736(21)00883-7] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/25/2021] [Accepted: 04/07/2021] [Indexed: 12/19/2022]
Abstract
Progress has been made in the prevention and treatment of community-acquired bacterial meningitis during the past three decades but the burden of the disease remains high globally. Conjugate vaccines against the three most common causative pathogens (Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae) have reduced the incidence of disease, but with the replacement by non-vaccine pneumococcal serotypes and the emergence of bacterial strains with reduced susceptibility to antimicrobial treatment, meningitis continues to pose a major health challenge worldwide. In patients presenting with bacterial meningitis, typical clinical characteristics (such as the classic triad of neck stiffness, fever, and an altered mental status) might be absent and cerebrospinal fluid examination for biochemistry, microscopy, culture, and PCR to identify bacterial DNA are essential for the diagnosis. Multiplex PCR point-of-care panels in cerebrospinal fluid show promise in accelerating the diagnosis, but diagnostic accuracy studies to justify routine implementation are scarce and randomised, controlled studies are absent. Early administration of antimicrobial treatment (within 1 hour of presentation) improves outcomes and needs to be adjusted according to local emergence of drug resistance. Adjunctive dexamethasone treatment has proven efficacy beyond the neonatal age but only in patients from high-income countries. Further progress can be expected from implementing preventive measures, especially the development of new vaccines, implementation of hospital protocols aimed at early treatment, and new treatments targeting checkpoints of the inflammatory cascade.
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Affiliation(s)
- Diederik van de Beek
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Amsterdam Neuroscience, Meibergdreef, Amsterdam, Netherlands.
| | - Matthijs C Brouwer
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Amsterdam Neuroscience, Meibergdreef, Amsterdam, Netherlands
| | - Uwe Koedel
- Department of Neurology, Ludwig-Maximilians-University, Munich, Germany
| | - Emma C Wall
- Research Department of Infection, University College London, London, UK; Francis Crick Institute, London, UK
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26
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Zhou Y, Yan K, Sun C, Liu F, Peng W, Chen H, Yuan F, Bei W, Li J. Binding of Plasminogen to Streptococcus suis Protein Endopeptidase O Facilitates Evasion of Innate Immunity in Streptococcus suis. Front Microbiol 2021; 12:694103. [PMID: 34305859 PMCID: PMC8297593 DOI: 10.3389/fmicb.2021.694103] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/07/2021] [Indexed: 11/26/2022] Open
Abstract
The Gram-positive bacterial species Streptococcus suis is an important porcine and human pathogen that causes severe life-threatening diseases associated with high mortality rates. However, the mechanisms by which S. suis evades host innate immunity remain elusive, so identifying novel virulence factors involved in immune evasion is crucial to gain control over this threatening pathogen. Our previous work has shown that S. suis protein endopeptidase O (SsPepO) is a novel fibronectin-binding protein. Here, we identified that recombinant SsPepO binds human plasminogen in a dose-dependent manner. Moreover, the binding of SsPepO and plasminogen, upon the activation of urokinase-type plasminogen activator, generated plasmin, which could cleave complement C3b, thus playing an important role in complement control. Additionally, a SspepO-deficient mutant showed impaired adherence to plasminogen as well as impaired adherence to and invasion of rat brain microvascular endothelial cells compared with the wildtype strain. We further found that the SspepO-deficient mutant was efficiently killed by human serum and blood. We also confirmed that the SspepO-deficient mutant had a lower mortality rate than the wildtype strain in a mouse model. In conclusion, these results indicate that SsPepO is a novel plasminogen-binding protein that contributes to S. suis immune evasion.
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Affiliation(s)
- Yang Zhou
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Kang Yan
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Chengfeng Sun
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Feng Liu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Wei Peng
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Huanchun Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Fangyan Yuan
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis, Ministry of Agriculture, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Weicheng Bei
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Jinquan Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
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27
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Guo G, Kong X, Wang Z, Li M, Tan Z, Zhang W. Evaluation of the immunogenicity and protective ability of a pili subunit, SBP2', of Streptococcus suis serotype 2. Res Vet Sci 2021; 137:201-207. [PMID: 34020335 DOI: 10.1016/j.rvsc.2021.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/30/2021] [Accepted: 05/12/2021] [Indexed: 01/08/2023]
Abstract
Streptococcus suis is an important zoonotic pathogen that leads to huge economic losses in the swine industry. Because of the enormous genetic and phenotypic diversity within S. suis, it is necessary to develop effective vaccines to control this zoonotic pathogen. SBP2' is a major pili subunit in S. suis that belongs to an srtBCD pili cluster and has already been reported to be associated with the pathogenesis of this bacterium. In this study, we aimed to evaluate the immunogenicity and protective ability of SBP2'. The rSBP2' protein was expressed by an Escherichia coli expression system and emulsified with Montanide ISA 201 adjuvant to prepare the subunit vaccine. Through active immune assays, the results showed that rSBP2' exhibited good immunogenicity and could protect mice from a lethal dose challenge. Additionally, the qRT-PCR data showed that the transcription levels of cytokines associated with systemic symptoms caused by S. suis were decreased, indicating that immunization with rSBP2' could protect the host from cytokine storms caused by S. suis. Furthermore, the passive immune assay showed that the humoral immunity induced by rSBP2' played an important role against S. suis infection. Taken together, SBP2' could provide proper immune protection against S. suis challenge and could be a candidate for S. suis subunit vaccine. The results of this study could provide new ideas for the development of effective vaccines against S. suis.
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Affiliation(s)
- Genglin Guo
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing 210095, China; OIE Reference Lab for Swine Streptococcosis, Nanjing 210095, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing, China.
| | - Xuewei Kong
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing 210095, China; OIE Reference Lab for Swine Streptococcosis, Nanjing 210095, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing, China
| | - Zhuohao Wang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing 210095, China; OIE Reference Lab for Swine Streptococcosis, Nanjing 210095, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing, China
| | - Min Li
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing 210095, China; OIE Reference Lab for Swine Streptococcosis, Nanjing 210095, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing, China
| | - Zhongming Tan
- NHC Key laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China.
| | - Wei Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing 210095, China; OIE Reference Lab for Swine Streptococcosis, Nanjing 210095, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing, China.
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28
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Kurihara M, Nasu M, Itokazu D, Tokuda Y. Kushiyaki-related Streptococcus suis meningitis with ventriculitis: A case report. Clin Case Rep 2021; 9:e04108. [PMID: 34026150 PMCID: PMC8133079 DOI: 10.1002/ccr3.4108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/09/2021] [Accepted: 03/16/2021] [Indexed: 11/26/2022] Open
Abstract
Streptococcus suis causes a zoonotic disease that commonly manifests as meningitis. People handle pork or its derivatives are at a high risk of infection. Handwashing and donning personal protective equipment are the practical preventive measures.
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Affiliation(s)
- Masaru Kurihara
- Department of Hospital MedicineUrasoe General HospitalOkinawaJapan
| | - Michitaka Nasu
- Department of Emergency and Critical Care MedicineUrasoe General HospitalOkinawaJapan
| | - David Itokazu
- Okinawa Asia Clinical Investigation SynergyOkinawaJapan
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29
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Meningitis due to Streptococcus suis in Two Patients with Occupational Exposure from Northeastern Brazil. Case Rep Infect Dis 2021; 2021:5512303. [PMID: 33680522 PMCID: PMC7929646 DOI: 10.1155/2021/5512303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/11/2021] [Accepted: 02/18/2021] [Indexed: 11/17/2022] Open
Abstract
Streptococcus suis is an emerging zoonotic agent that causes bacterial meningitis. S. suis is an encapsulated Gram-positive, facultative anaerobic bacterium. This infection usually manifests in humans as meningitis, endocarditis, septicemia, and/or arthritis. The primary groups at risk for S. suis infection are individuals occupationally exposed to pigs and/or pork, for example, farmers, butchers, and hunters. Herein, we report two cases of meningitis related to S. suis with occupational exposure from the Ceará state, northeastern Brazil.
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30
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Zhang X, Wu Z, Wang K. Diagnosis of Streptococcus suis Meningoencephalitis with metagenomic next-generation sequencing of the cerebrospinal fluid: a case report with literature review. BMC Infect Dis 2020; 20:884. [PMID: 33238913 PMCID: PMC7687824 DOI: 10.1186/s12879-020-05621-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 11/15/2020] [Indexed: 12/19/2022] Open
Abstract
Background Streptococcus suis meningoencephalitis is a zoonotic disease that mostly infects slaughterhouse workers. Rapid diagnosis of Streptococcus suis meningoencephalitis is critical for effective clinical management of this condition. However, the current diagnostic techniques are not effective for early diagnosis of this condition. To the best of our knowledge, the use of cerebrospinal fluid metagenomic next generation sequencing in the diagnosis of Streptococcus suis meningoencephalitis has been rarely reported. Case presentation Here, we report a case of Streptococcus suis meningoencephalitis in a 51-year-old female patient. The patient had a history of long-term contact with pork and had a three-centimeter-long wound on her left leg prior to disease onset. Conventional tests, including blood culture, gram staining and cerebrospinal fluid culture, did not reveal bacterial infection. However, Streptococcus suis was detected in cerebrospinal fluid using metagenomic next generation sequencing. Conclusions Metagenomic next generation sequencing is a promising approach for early diagnosis of central nervous system infections. This case report indicates that cases of clinical meningeal encephalitis of unknown cause can be diagnosed through this method.
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Affiliation(s)
- Xiaobo Zhang
- Department of Neurology, The First People's Hospital Of Changde City, 818 Renmin Road, Changde, 415000, Hunan Province, China.
| | - Zhaoping Wu
- Department of Neurology, Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, China
| | - Kai Wang
- Department of Neurology, The First People's Hospital Of Changde City, 818 Renmin Road, Changde, 415000, Hunan Province, China
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31
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Romay-Lema EM, Ventura-Valcárcel P, Iñiguez-Vázquez I, García-Pais MJ, García-Garrote F, Rabuñal-Rey R, Alonso MP, Corredoira-Sánchez J. Streptococcus suis spondylodiscitis: 2 new cases and a literature review. Enferm Infecc Microbiol Clin 2020; 40:S0213-005X(20)30270-6. [PMID: 33069490 DOI: 10.1016/j.eimc.2020.08.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/10/2020] [Accepted: 08/12/2020] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Streptococcus suis (S. suis) infection is poorly described zoonosis in our country, which is related with exposure to pigs or their meat. The most common clinical presentation is meningitis, while spinés involvement is rare. METHODS We report 2 cases of S. suis infection and perform a systematic review of the articles published on S. suis spondylodiscitis between January 1994 and May 2020 with the aim of defining the clinical characteristics, predisposing factors and evolution. RESULTS 17 cases are described, 76.5% males with a mean age of 57.6 years, generally without associated underlying disease. Enolism was a factor present in 17.6%. 70.6% had exposure to pigs or their meat and 20% hand injuries. The mean duration of symptoms was 10.2 days and the most affected segment was the lumbar level. 70.6% had meningitis. All were treated with beta-lactams with an average duration of 53.2 days. There was a recurrence and none died. CONCLUSION There are few cases of S. suis spondylodiscitis in the literature. When occurs, it is associated with another type of infection in most cases. They present a good response to medical treatment and a good prognosis.
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Affiliation(s)
- Eva-María Romay-Lema
- Unidad de Enfermedades Infecciosas, Hospital Universitario Lucus Augusti, Lugo, España.
| | | | - Iria Iñiguez-Vázquez
- Servicio de Medicina Interna, Hospital Universitario Lucus Augusti, Lugo, España
| | | | | | - Ramón Rabuñal-Rey
- Unidad de Enfermedades Infecciosas, Hospital Universitario Lucus Augusti, Lugo, España
| | - María Pilar Alonso
- Servicio de Microbiología, Hospital Universitario Lucus Augusti, Lugo, España
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Wu JY, Zhu YS, Guo C, Xia Y, Guo ZM, Li QL, Lu JH. A Comparative Study of Associated Microbiota Between Pig Farm and Pig Slaughterhouse in Guangdong, China. Curr Microbiol 2020; 77:3310-3320. [PMID: 32915289 PMCID: PMC7485193 DOI: 10.1007/s00284-020-02187-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 08/26/2020] [Indexed: 12/11/2022]
Abstract
The goal of this study was to compare the microbiota in different pig-present settings in China. Bioaerosol samples from pig farms and slaughterhouses and nasal samples from pig farmers and slaughterhouse workers were collected in Guangdong, southern China. The bacterial genomic DNA was isolated and subjected to 16S sequencing. The data were analyzed using QIIME2 with the DADA2 pipeline. A total of 14,923,551 clean reads and 2785 operational taxonomic units (OTUs) were obtained, which were mostly grouped into 4 phyla (Proteobacteria, Bacteroidetes, Firmicutes, and Actinobacteria) and 220 families. The microbiota richness of nasal samples in pig-present workers was higher than that of bioaerosols collected in the vicinity of the pig enclosures. There were 31.7% (620/1954) shared OTUs between pig farm bioaerosols and pig farmers which was higher than that between pig slaughterhouses and slaughterhouse workers (23.4%, 364/1553) (p < 0.001). Acinetobacter and Pseudomonas were the most abundant in pig-present bioaerosols, and Staphylococcus, Pseudomonas, and Corynebacterium were dominant bacterial genus in pig farmers. The bacterial patterns are also specific to the location of sample collected. The results suggest that bioaerosol microbiota interact with human nasal microbes in the vicinity of the pig farm enclosures, providing the basis for further analysis of microbial transmission across hosts in pig-present settings.
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Affiliation(s)
- Jian-Yong Wu
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Yan-Shan Zhu
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Cheng Guo
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, 10032, USA
| | - Yao Xia
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Zhong-Min Guo
- Laboratory Animal Center, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Qian-Lin Li
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jia-Hai Lu
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China.
- Key Laboratory for Tropical Disease Control of Ministry of Education, Sun Yat-Sen University, Guangzhou, 510080, China.
- One Health Center of Excellence for Research & Training, Sun Yat-Sen University, Guangzhou, 510080, China.
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Abstract
PURPOSE OF REVIEW Community-acquired bacterial meningitis continues to occur and be associated with significant morbidity and mortality despite the availability of effective conjugate vaccines for the three most important meningeal pathogens. RECENT FINDINGS Indications for cranial imaging in suspected bacterial meningitis varies significantly between guidelines. Cranial imaging is of no clinical utility in those patients without indications and fosters delays in performing a lumbar puncture. Delaying lumbar puncture is associated with increased costs in both adults and children with meningitis and previous antibiotic therapy impacts the yield of microbiological results. Delaying antibiotic therapy is associated with worse clinical outcomes. Adjunctive steroids have reduced the mortality of adults with pneumococcal meningitis but have been associated with increased adverse outcomes in Listeria monocytogenes and Cryptococcus neoformans. SUMMARY Community-acquired bacterial meningitis remains a global health concern with high morbidity and mortality especially in low-income countries. Cranial imaging should be done only in patients with an indication with an attempt to do a prompt lumbar puncture and to initiate antibiotic therapy and adjunctive steroids as soon as possible to improve clinical outcomes.
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Segura M, Aragon V, Brockmeier SL, Gebhart C, de Greeff A, Kerdsin A, O’Dea MA, Okura M, Saléry M, Schultsz C, Valentin-Weigand P, Weinert LA, Wells JM, Gottschalk M. Update on Streptococcus suis Research and Prevention in the Era of Antimicrobial Restriction: 4th International Workshop on S. suis. Pathogens 2020; 9:pathogens9050374. [PMID: 32422856 PMCID: PMC7281350 DOI: 10.3390/pathogens9050374] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 12/16/2022] Open
Abstract
Streptococcus suis is a swine pathogen and a zoonotic agent afflicting people in close contact with infected pigs or pork meat. Sporadic cases of human infections have been reported worldwide. In addition, S. suis outbreaks emerged in Asia, making this bacterium a primary health concern in this part of the globe. In pigs, S. suis disease results in decreased performance and increased mortality, which have a significant economic impact on swine production worldwide. Facing the new regulations in preventive use of antimicrobials in livestock and lack of effective vaccines, control of S. suis infections is worrisome. Increasing and sharing of knowledge on this pathogen is of utmost importance. As such, the pathogenesis and epidemiology of the infection, antimicrobial resistance, progress on diagnosis, prevention, and control were among the topics discussed during the 4th International Workshop on Streptococcus suis (held in Montreal, Canada, June 2019). This review gathers together recent findings on this important pathogen from lectures performed by lead researchers from several countries including Australia, Canada, France, Germany, Japan, Spain, Thailand, The Netherlands, UK, and USA. Finally, policies and recommendations for the manufacture, quality control, and use of inactivated autogenous vaccines are addressed to advance this important field in veterinary medicine.
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Affiliation(s)
- Mariela Segura
- Research Group on Infectious Diseases in Production Animals and Swine and Poultry Infectious Diseases Research Centre, Faculty of Veterinary Medicine, University of Montreal, St-Hyacinthe, QC J2S 2M2, Canada
- Correspondence: (M.S.); (M.G.); Tel.: +1-450-773-8521 (ext. 0080) (M.S.); +1-450-773-8521 (ext. 8374) (M.G.)
| | - Virginia Aragon
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain;
| | | | - Connie Gebhart
- College of Veterinary Medicine, University of Minnesota, St. Paul, MN 55108, USA;
| | - Astrid de Greeff
- Wageningen Bioveterinary Research, 8221 RA Lelystad, The Netherlands;
| | - Anusak Kerdsin
- Faculty of Public Health, Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon 47000, Thailand;
| | - Mark A O’Dea
- Antimicrobial Resistance and Infectious Disease Laboratory, School of Veterinary and Life Sciences, Murdoch University, Perth, Western Australia 6150, Australia;
| | - Masatoshi Okura
- Division of Bacterial and Parasitic Diseases, National Institute of Animal Health, National Agriculture and Food Research Organization, Tsukuba, Ibaraki 305-0856, Japan;
| | - Mariette Saléry
- French Agency for Veterinary Medicinal Products-French Agency for food, Environmental and Occupational Health Safety (Anses-ANMV), 35302 Fougères, France;
| | - Constance Schultsz
- Department of Global Health-Amsterdam Institute for Global Health and Development and Department of Medical Microbiology, Amsterdam University Medical Centers, University of Amsterdam, 1105 BP Amsterdam, The Netherlands;
| | | | - Lucy A. Weinert
- Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK;
| | - Jerry M. Wells
- Host-Microbe Interactomics Group, Department Animal Sciences, Wageningen University and Research, 6709 PG Wageningen, The Netherlands;
- Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK
| | - Marcelo Gottschalk
- Research Group on Infectious Diseases in Production Animals and Swine and Poultry Infectious Diseases Research Centre, Faculty of Veterinary Medicine, University of Montreal, St-Hyacinthe, QC J2S 2M2, Canada
- Correspondence: (M.S.); (M.G.); Tel.: +1-450-773-8521 (ext. 0080) (M.S.); +1-450-773-8521 (ext. 8374) (M.G.)
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Bilateral total deafness after preparation of wild boar meat. Eur Ann Otorhinolaryngol Head Neck Dis 2020; 137:419-421. [PMID: 32249147 DOI: 10.1016/j.anorl.2020.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Streptococcus suis is responsible for a zoonosis for which Suidae (pigs and wild boars) constitute the reservoir, mainly in Asia, with a much lower prevalence in Europe. The predominant clinical manifestation is meningitis, possibly resulting in deafness. CASE REPORT We report the case of a woman hospitalised for meningitis complicated by labyrinthitis, occurring several hours after preparing a meal composed of wild boar meat. Despite the presence of intracochlear fibrosis, the patient was managed by sequential bilateral cochlear implants. DISCUSSION The discussion presents a review of the international literature and describes the mechanisms responsible for hearing loss related to this rare zoonosis.
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Aryasa IGMA, Widiasari NPA, Susilawathi NM, Fatmawati NND, Adnyana IMO, Sudewi AAR, Adi Tarini NM. <em>Streptococcus suis</em> meningitis related to processing and consuming raw pork during Balinese tradition, <em>Mebat</em>. MEDICAL JOURNAL OF INDONESIA 2020. [DOI: 10.13181/mji.cr.193249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Streptococcus suis is a zoonotic pathogen that can infect humans, especially meningitis. S. suis meningitis has been commonly diagnosed in Bali, which is associated with the consumption of raw pork. We reported case of S. suis meningitis that could have occurred due to the ingestion of undercooked pork during a traditional ceremony, which also involved two more patients with similar symptoms. A 62-year-old male was brought to the emergency unit because of decreased consciousness (Glasgow coma scale 14/15) in the last 8 hours before admission. He also had a headache, high fever, and stiff neck. Examination of cerebrospinal fluid revealed the presence of S. suis infection and was confirmed by polymerase chain reaction. The patient was administered ceftriaxone and showed a clinical improvement on the third day without any hearing problem.
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Susilawathi NM, Tarini NMA, Fatmawati NND, Mayura PIB, Suryapraba AAA, Subrata M, Sudewi AAR, Mahardika GN. Streptococcus suis-Associated Meningitis, Bali, Indonesia, 2014-2017. Emerg Infect Dis 2019; 25:2235-2242. [PMID: 31742523 PMCID: PMC6874276 DOI: 10.3201/eid2512.181709] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Streptococcus suis is an emerging agent of zoonotic bacterial meningitis in Asia. We describe the epidemiology of S. suis cases and clinical signs and microbiological findings in persons with meningitis in Bali, Indonesia, using patient data and bacterial cultures of cerebrospinal fluid collected during 2014-2017. We conducted microbiological assays using the fully automatic VITEK 2 COMPACT system. We amplified and sequenced gene fragments of glutamate dehydrogenase and recombination/repair protein and conducted PCR serotyping to confirm some serotypes. Of 71 cases, 44 were confirmed as S. suis; 29 isolates were serotype 2. The average patient age was 48.1 years, and 89% of patients were male. Seventy-seven percent of patients with confirmed cases recovered without complications; 11% recovered with septic shock, 7% with deafness, and 2% with deafness and arthritis. The case-fatality rate was 11%. Awareness of S. suis infection risk must be increased in health promotion activities in Bali.
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Application of the Phage Lysin Ply5218 in the Treatment of Streptococcus suis Infection in Piglets. Viruses 2019; 11:v11080715. [PMID: 31387285 PMCID: PMC6723582 DOI: 10.3390/v11080715] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/01/2019] [Accepted: 08/02/2019] [Indexed: 01/03/2023] Open
Abstract
Streptococcus suis (S. suis) is a gram-positive bacterium and zoonotic pathogen. Currently it poses a serious problem in the swine industry due to the emergence of antibiotic-resistant bacteria. Thus, novel antimicrobials against S. suis infections are urgently needed. In the previous study, a cell wall hydrolase or lysin derived from Streptococcus prophage phi5218, termed Ply5218, was identified. This lysin showed strong bacteriolytic activity against S. suis. In the current study, the in vitro data showed that after incubation with pig serum, the bacteriolytic efficacy of Ply5218 declined in a time-dependent manner. The in vivo assays indicated that a Ply5218 triple treatment (6, 24, and 48 h post infection) was effective against various serotypes of S. suis in a murine infection model. This regimen also alleviated streptococcal-induced clinical symptoms in piglets and significantly reduced the bacterial burden and levels of interleukin 6, a proinflammatory cytokine. This study indicates that Ply5218 shows strong antibacterial activity in pigs and has the potential to be used as a treatment for infectious diseases caused by S. suis.
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Abstract
PURPOSE OF REVIEW The epidemiology of bacterial meningitis has been dynamic in the past 30 years following introduction of conjugated vaccines against Haemophilus influenzae type B, Streptococcus pneumoniae and Neisseria meningitidis. The purpose of this review is to describe recent developments in bacterial meningitis epidemiology. RECENT FINDINGS The incidence of bacterial meningitis in Western countries (Finland, Netherlands, and the United States) gradually declined by 3-4% per year to 0.7-0.9 per 100 000 per year in the past 10-20 years. In African countries (Burkina Faso and Malawi), incidence rates are still substantially higher at 10-40 per 100 000 persons per year. Introduction of pneumococcal conjugate vaccines have not consistently decreased overall pneumococcal meningitis incidence because of serotype replacement. Following the introduction of serogroup A and C meningococcal vaccines, the incidence of meningococcal meningitis because of these serogroups strongly decreased. Novel outbreaks in the African meningitis belt by serogroup C and increased incidence of serogroup W in the United Kingdom and the Netherlands were observed recently. SUMMARY Bacterial meningitis remains an important infectious disease, despite a gradual decline in incidence after large-scale vaccination campaigns. Further development of vaccines with broader coverage is important, as is continuous surveillance of bacterial meningitis cases.
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Liu F, Li J, Yan K, Li H, Sun C, Zhang S, Yuan F, Wang X, Tan C, Chen H, Bei W. Binding of Fibronectin to SsPepO Facilitates the Development of Streptococcus suis Meningitis. J Infect Dis 2019; 217:973-982. [PMID: 29253192 DOI: 10.1093/infdis/jix523] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Background SsPepO is an important virulence in Streptococcus suis. Methods In this study, we showed that SsPepO contributes to the human fibronectin-mediated adherence ability of S. suis to human brain microvascular endothelial cells. Results The addition of an antifibronectin antibody or an arginine-glycine-aspartic acid peptide that blocks fibronectin binding to integrins significantly reduced adherence of the wild-type but not the SspepO mutant strain, indicating the importance of the SsPepO-fibronectin-integrin interaction for S. suis cellular adherence. Conclusions By analyzing Evans blue extravasation in vivo, we showed that the interaction between SsPepO and human fibronectin significantly increased permeability of the blood-brain barrier. Furthermore, the SspepO mutant caused lower bacterial loads in the brain than wild-type S. suis in models of meningitis. These data demonstrate that SsPepO is a fibronectin-binding protein, which plays a contributing role in the development of S. suis meningitis.
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Affiliation(s)
- Feng Liu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China.,Key Laboratory of Development of Veterinary Diagnostic Products of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Jinquan Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Kang Yan
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China.,Key Laboratory of Development of Veterinary Diagnostic Products of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Huan Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China.,Key Laboratory of Development of Veterinary Diagnostic Products of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Chengfeng Sun
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China.,Key Laboratory of Development of Veterinary Diagnostic Products of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Shuo Zhang
- Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Fangyan Yuan
- Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Xiangru Wang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China.,Key Laboratory of Development of Veterinary Diagnostic Products of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Chen Tan
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China.,Key Laboratory of Development of Veterinary Diagnostic Products of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Huanchun Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China.,Key Laboratory of Development of Veterinary Diagnostic Products of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Weicheng Bei
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei, China.,Key Laboratory of Development of Veterinary Diagnostic Products of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
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Figueiredo AHA, Brouwer MC, van de Beek D. Acute Community-Acquired Bacterial Meningitis. Neurol Clin 2018; 36:809-820. [DOI: 10.1016/j.ncl.2018.06.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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42
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Linezolid resistance genes and genetic elements enhancing their dissemination in enterococci and streptococci. Plasmid 2018; 99:89-98. [PMID: 30253132 DOI: 10.1016/j.plasmid.2018.09.011] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 09/21/2018] [Accepted: 09/21/2018] [Indexed: 01/08/2023]
Abstract
Linezolid is considered a last resort drug in treatment of severe infections caused by Gram-positive pathogens, resistant to other antibiotics, such as vancomycin-resistant enterococci (VRE), methicillin-resistant staphylococci and multidrug resistant pneumococci. Although the vast majority of Gram-positive pathogenic bacteria remain susceptible to linezolid, resistant isolates of enterococci, staphylococci and streptococci have been reported worldwide. In these bacteria, apart from mutations, affecting mostly the 23S rRNA genes, acquisition of such genes as cfr, cfr(B), optrA and poxtA, often associated with mobile genetic elements (MGE), plays an important role for resistance. The purpose of this paper is to provide an overview on diversity and epidemiology of MGE carrying linezolid-resistance genes among clinically-relevant Gram-positive pathogens such as enterococci and streptococci.
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Risk factors for Streptococcus suis infection: A systematic review and meta-analysis. Sci Rep 2018; 8:13358. [PMID: 30190575 PMCID: PMC6127304 DOI: 10.1038/s41598-018-31598-w] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 08/16/2018] [Indexed: 11/08/2022] Open
Abstract
Streptococcus suis (S. suis) is a gram-positive bacterial pathogen in pigs which can cause serious infections in human including meningitis, and septicaemia resulting in serious complications. There were discrepancies between different data and little is known concerning associated risk factors of S. suis. A systematic review and meta-analysis was conducted to investigate on S. suis infection risk factors in human. We searched eight relevant databases using the MeSH terms "Streptococcus suis" OR "Streptococcus suis AND infection" limited in human with no time nor language restriction. Out of 4,999 articles identified, 32 and 3 studies were included for systematic review and meta-analysis respectively with a total of 1,454 Streptococcus suis cases reported. S. suis patients were generally adult males and the elderly. The mean age ranged between 37 to 63 years. Meningitis was the most common clinical manifestation, and deafness was the most common sequelae found among survivors followed by vestibular dysfunction. Infective endocarditis was also noted as among the most common clinical presentations associated with high mortality rate in a few studies. Meta-analyses categorized by type of control groups (community control, and non-S. suis sepsis) were done among 850 participants in 3 studies. The combined odd ratios for studies using community control groups and non-S. Suis sepsis as controls respectively were 4.63 (95% CI 2.94-7.29) and 78.00 (95% CI 10.38-585.87) for raw pork consumption, 4.01 (95% CI 2.61-6.15) and 3.03 (95% CI 1.61-5.68) for exposure to pigs or pork, 11.47, (95% CI 5.68-23.14) and 3.07 (95% CI 1.81-5.18) for pig-related occupation and 3.56 (95% CI 2.18-5.80) and 5.84 (95% CI 2.76-12.36) for male sex. The results were found to be significantly associated with S. suis infection and there was non-significant heterogeneity. History of skin injury and underlying diseases were noted only a small percentage in most studies. Setting up an effective screening protocol and public health interventions would be effective to enhance understanding about the disease.
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Fang L, Zhou J, Fan P, Yang Y, Shen H, Fang W. A serine/threonine phosphatase 1 of Streptococcus suis type 2 is an important virulence factor. J Vet Sci 2018; 18:439-447. [PMID: 28057904 PMCID: PMC5746436 DOI: 10.4142/jvs.2017.18.4.439] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 09/30/2016] [Accepted: 11/23/2016] [Indexed: 11/20/2022] Open
Abstract
Streptococcus suis is regarded as one of the major pathogens of pigs, and Streptococcus suis type 2 (SS2) is considered a zoonotic bacterium based on its ability to cause meningitis and streptococcal toxic shock-like syndrome in humans. Many bacterial species contain genes encoding serine/threonine protein phosphatases (STPs) responsible for dephosphorylation of their substrates in a single reaction step. This study investigated the role of stp1 in the pathogenesis of SS2. An isogenic stp1 mutant (Δstp1) was constructed from SS2 strain ZJ081101. The Δstp1 mutant exhibited a significant increase in adhesion to HEp-2 and bEnd.3 cells as well as increased survival in RAW264.7 cells, as compared to the parent strain. Increased survival in macrophage cells might be related to resistance to reactive oxygen species since the Δstp1 mutant was more resistant than its parent strain to paraquat-induced oxidative stress. However, compared to parent strain virulence, deletion of stp1 significantly attenuated virulence of SS2 in mice, as shown by the nearly double lethal dose 50 value and the lower bacterial load in organs and blood in the murine model. We conclude that Stp1 has an essential role in SS2 virulence.
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Affiliation(s)
- Lihua Fang
- Zhejiang University Institute of Preventive Veterinary Medicine and Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Hangzhou 310058, China.,Center for Synthetic Biology Engineering Research, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Jingjing Zhou
- Zhejiang University Institute of Preventive Veterinary Medicine and Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Hangzhou 310058, China
| | - Pengcheng Fan
- Zhejiang University Institute of Preventive Veterinary Medicine and Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Hangzhou 310058, China
| | - Yunkai Yang
- Zhejiang University Institute of Preventive Veterinary Medicine and Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Hangzhou 310058, China
| | - Hongxia Shen
- Zhejiang University Institute of Preventive Veterinary Medicine and Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Hangzhou 310058, China
| | - Weihuan Fang
- Zhejiang University Institute of Preventive Veterinary Medicine and Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Hangzhou 310058, China
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Seele J, Tauber SC, Bunkowski S, Baums CG, Valentin-Weigand P, de Buhr N, Beineke A, Iliev AI, Brück W, Nau R. The inflammatory response and neuronal injury in Streptococcus suis meningitis. BMC Infect Dis 2018; 18:297. [PMID: 29970011 PMCID: PMC6029386 DOI: 10.1186/s12879-018-3206-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/22/2018] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Many of the currently used models of bacterial meningitis have limitations due to direct inoculation of pathogens into the cerebrospinal fluid or brain and a relatively insensitive assessment of long-term sequelae. The present study evaluates the utility of a Streptococcus (S.) suis intranasal infection model for the investigation of experimental therapies in meningitis. METHODS We examined the brains of 10 piglets with S. suis meningitis as well as 14 control piglets by histology, immunohistochemistry and in-situ tailing for morphological alterations in the hippocampal dentate gyrus and microglial activation in the neocortex. RESULTS In piglets with meningitis, the density of apoptotic neurons was significantly higher than in control piglets. Moreover, scoring of microglial morphology revealed a significant activation of these cells during meningitis. The slight increase in the density of dividing cells, young neurons and microglia observed in piglets suffering from meningitis was not statistically significant, probably because of the short time frame between onset of clinical signs and organ sampling. CONCLUSIONS The morphological changes found during S. suis meningitis are in accordance with abnormalities in other animal models and human autopsy cases. Therefore, the pig should be considered as a model for evaluating effects of experimental therapeutic approaches on neurological function in bacterial meningitis.
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Affiliation(s)
- Jana Seele
- Department of Neuropathology, University Medical Center Göttingen, Georg-August-University Göttingen, Göttingen, Germany. .,Department of Geriatrics, Evangelisches Krankenhaus Göttingen-Weende, Göttingen, Germany.
| | - Simone C Tauber
- Department of Neurology, RWTH University Hospital, Aachen, Germany
| | - Stephanie Bunkowski
- Department of Neuropathology, University Medical Center Göttingen, Georg-August-University Göttingen, Göttingen, Germany
| | - Christoph G Baums
- Institute for Bacteriology and Mycology, Center for Infectious Diseases, Faculty of Veterinary Medicine, University Leipzig, Leipzig, Germany
| | - Peter Valentin-Weigand
- Institute for Microbiology, Center for Infection Medicine, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Nicole de Buhr
- Department of Physiological Chemistry, Department of Infectious Diseases, University of Veterinary Medicine Hannover, Hannover, Germany.,Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
| | - Andreas Beineke
- Department of Pathology, University of Veterinary Medicine Hannover, Hannover, Germany
| | | | - Wolfgang Brück
- Department of Neuropathology, University Medical Center Göttingen, Georg-August-University Göttingen, Göttingen, Germany
| | - Roland Nau
- Department of Neuropathology, University Medical Center Göttingen, Georg-August-University Göttingen, Göttingen, Germany.,Department of Geriatrics, Evangelisches Krankenhaus Göttingen-Weende, Göttingen, Germany
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46
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Gomez-Torres J, Nimir A, Cluett J, Aggarwal A, Elsayed S, Soares D, Teatero S, Chen Y, Gottschalk M, Fittipaldi N. Human Case of Streptococcus suis Disease, Ontario, Canada. Emerg Infect Dis 2018; 23:2107-2109. [PMID: 29148386 PMCID: PMC5708224 DOI: 10.3201/eid2312.171005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We report a case of Streptococcus suis human disease in Ontario, Canada, caused by a serotype 2 strain genotypically similar to those commonly isolated from pigs in North America. Initially, the isolate was misidentified as a viridans group Streptococcus. Human S. suis infections may be underdiagnosed in North America.
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47
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Feng L, Niu X, Mei W, Li W, Liu Y, Willias SP, Yuan C, Bei W, Wang X, Li J. Immunogenicity and protective capacity of EF-Tu and FtsZ of Streptococcus suis serotype 2 against lethal infection. Vaccine 2018; 36:2581-2588. [PMID: 29627237 DOI: 10.1016/j.vaccine.2018.03.079] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 03/24/2018] [Accepted: 03/28/2018] [Indexed: 10/17/2022]
Abstract
Vaccine development efforts against Streptococcus suis serotype 2 (S. suis 2) are often constrained by strain/serotype antigen variability. Bioinformatics analyses revealed two highly conserved S. suis 2 factors, EF-Tu and FtsZ. Murine immunization with recombinant proteins emulsified in white oil adjuvant or eukaryotic DNA vaccine vectors provided significant protection against lethal S. suis 2 challenge. Immune responses elicited by recombinant protein immunization revealed the robust generation of humoral immune responses, with a mixed induction of Th1-type and Th2-type responses. Furthermore, the antiserum from mice immunized with recombinant proteins significantly inhibited the growth of S. suis 2 in healthy pig whole blood, suggesting the triggering of a strong opsonizing response. Histological examination found that immunizing mice with purified recombinant proteins reduced neutrophil and macrophage accumulation in brain and lung tissues after challenge with virulent S. suis. Taken together, these findings reveal that EF-Tu and FtsZ may be promising targets for subunit and DNA vaccine candidates against S. suis 2 infection.
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Affiliation(s)
- Liping Feng
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China; Shanghai Laboratory Animal Research Center, Shanghai, People's Republic of China
| | - Xiaona Niu
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Wen Mei
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Weitian Li
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Yuan Liu
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Stephan P Willias
- Department of Infectious Diseases and Pathology, University of Florida, Gainesville, FL, USA
| | - Chao Yuan
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Weicheng Bei
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Xiaohong Wang
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Jinquan Li
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China; Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China.
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48
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Liu H, Jia L, Guo W, Sun Y, Zhu R, Li S, Qu G, Jiang H, Wang J, Gu J, Sun C, Feng X, Han W, Lei L. Differential Protein Profiling of Cerebrospinal Fluid in Piglets with Severe Meningoencephalitis Caused by Streptococcus suis Type 2 Compared to Controls. Front Cell Infect Microbiol 2018; 8:35. [PMID: 29479521 PMCID: PMC5811643 DOI: 10.3389/fcimb.2018.00035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 01/25/2018] [Indexed: 11/19/2022] Open
Abstract
Streptococcus suis serotype 2 (SS2) is a zoonotic pathogen that can cause meningitis both in pigs and in human beings. However, the pathogenesis of central nervous system (CNS) infection caused by SS2 have not yet been elucidated. To find the key molecules in cerebrospinal fluid (CSF) needed for the pathogenesis, a SS2 meningoencephalitic pig model and a SS2 non-meningoencephalitic pig model were established in this study. CSF was collected from infected piglets, and protein profiling was performed with label-free proteomics technology. A total of 813 differential proteins, including 52 up-regulated proteins and 761 down-regulated proteins, were found in the CSF of meningoencephalitic pigs compared with both non-meningoencephalitic pigs and healthy pigs. These 813 differential proteins were clustered into three main categories, namely, cellular component, biological process, and molecular function by gene ontology (GO) analysis. The most enriched subclasses of differential proteins in each category were exosome (44.3%), energy pathway (25.0%) and catalytic activity (11.3%), respectively. The most enriched subclasses of upregulated proteins were extracellular (62.1%), protein metabolism (34.5%) and cysteine-type peptidase activity (6.9%), and of downregulated proteins were exosomes (45.0%), energy pathway (24.0%) and catalytic activity (9.4%). Then, the differential proteins were further investigated by using the KEGG database and were found to participate in 16 KEGGs. The most enriched KEGG was citrate cycle (56.6%), and some of these differential proteins are associated with brain diseases such as Huntington's disease (18.6%), Parkinson's disease (23.8%) and Alzheimer's disease (17.6%). Sixteen of the 813 differential proteins, chosen randomly as examples, were further confirmed by enzyme-linked immunosorbent assay (ELISA) to support the proteomic data. To our knowledge, this is the first study to analyze the differential protein profiling of CSF between SS2 meningoencephalitic piglets and non-meningoencephalitic piglets by employing proteomic technology. The discovery and bioinformatics analysis of these differential proteins provides reference data not only for research on pathogenesis of SS2 CNS infection but also for diagnosis and drug therapy research.
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Affiliation(s)
- Hongtao Liu
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Li Jia
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Wenfei Guo
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yingying Sun
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Rining Zhu
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Shuguang Li
- Shandong Binzhou Animal Science and Veterinary Medicine Academy, Binzhou, China
| | - Guanggang Qu
- Shandong Binzhou Animal Science and Veterinary Medicine Academy, Binzhou, China
| | - Hexiang Jiang
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Junjie Wang
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Jingmin Gu
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Changjiang Sun
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xin Feng
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Wenyu Han
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Liancheng Lei
- College of Veterinary Medicine, Jilin University, Changchun, China
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49
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Yanase T, Morii D, Kamio S, Nishimura A, Fukao E, Inose Y, Honma Y, Kitahara N, Yokozawa T, Chang B, Oda T. The first report of human meningitis and pyogenic ventriculitis caused by Streptococcus suis: A case report. J Infect Chemother 2018; 24:669-673. [PMID: 29429850 DOI: 10.1016/j.jiac.2018.01.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Accepted: 01/15/2018] [Indexed: 10/18/2022]
Abstract
Streptococcus suis, a gram-positive facultative anaerobe commonly found in pigs, is an emerging zoonotic pathogen. Herein, we describe a case of a 45-year-old male Japanese meat wholesaler with S. suis meningitis and pyogenic ventriculitis. S. suis was isolated from his blood and cerebrospinal fluid culture, and sequence type (ST) and serotype were confirmed to be ST1 and serotype 2, respectively, by multilocus sequence typing and the Quellung reaction. Magnetic resonance imaging (MRI) revealed right labyrinthitis and pyogenic ventriculitis. The patient was treated with ceftriaxone and ampicillin for 24 days; the treatment was deemed successful based on negative blood cultures on day 4. However, the patient experienced hearing loss and a vestibular nerve disorder. S. suis is a rare pathogen in Japan but can cause severe infection and sequelae. To the best of our knowledge, this is the first report of a human case of pyogenic ventriculitis caused by S. suis. Our findings suggest that S. suis infection should be considered when hearing impairment is present in a patient with bacterial infection and that MRI can help detect ventriculitis, which can necessitate a prolonged treatment duration.
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Affiliation(s)
- Tomonobu Yanase
- Department of Infectious Disease, Showa General Hospital, 8-1-1 Hanakoganei, Kodaira, Tokyo 187-8510, Japan.
| | - Daiichi Morii
- Department of Infectious Disease, Showa General Hospital, 8-1-1 Hanakoganei, Kodaira, Tokyo 187-8510, Japan; Department of Infectious Control and Prevention, Graduate School of Medicine, Osaka University, 2-15 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Satoshi Kamio
- Department of Neurology, Showa General Hospital, 8-1-1 Hanakoganei, Kodaira, Tokyo 187-8510, Japan
| | - Ayako Nishimura
- Department of Neurology, Showa General Hospital, 8-1-1 Hanakoganei, Kodaira, Tokyo 187-8510, Japan
| | - Eri Fukao
- Department of Neurology, Showa General Hospital, 8-1-1 Hanakoganei, Kodaira, Tokyo 187-8510, Japan
| | - Yuri Inose
- Department of Neurology, Showa General Hospital, 8-1-1 Hanakoganei, Kodaira, Tokyo 187-8510, Japan
| | - Yutaka Honma
- Department of Neurology, Showa General Hospital, 8-1-1 Hanakoganei, Kodaira, Tokyo 187-8510, Japan
| | - Nobuo Kitahara
- Department of Otorhinolaryngology, Showa General Hospital, 8-1-1 Hanakoganei, Kodaira, Tokyo 187-8510, Japan
| | - Takayuki Yokozawa
- Department of Clinical Laboratory, Showa General Hospital, 8-1-1 Hanakoganei, Kodaira, Tokyo 187-8510, Japan
| | - Bin Chang
- Department of Bacteriology I, National Institute of Infectious Diseases, 1-23-1Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Toshimi Oda
- Department of Infectious Disease, Showa General Hospital, 8-1-1 Hanakoganei, Kodaira, Tokyo 187-8510, Japan
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50
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Kim HS, Lee MH, Kim YS, Choi JK, Yoo JH. A Case of Life-Threating Streptococcus suis Infection Presented as Septic Shock and Multiple Abscesses. Infect Chemother 2018; 50:274-279. [PMID: 30270588 PMCID: PMC6167511 DOI: 10.3947/ic.2018.50.3.274] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 06/14/2017] [Indexed: 11/24/2022] Open
Abstract
Streptococcus suis is a zoonotic pathogen that can cause severe systemic infections in humans as well as swine. In recent decades, the number of S. suis infections in humans has increased, particularly in Southeast Asia. Although most cases of S. suis human infections are reported as sporadic, a few outbreaks have been noted. Interestingly, these outbreaks have been proposed to be associated with concomitant outbreaks in swine. In Korea, four sporadic and non-fatal cases of S. suis infection have been reported. We herein report a case of life-threating S. suis infection with sepsis for the first time in Korea. The patient was a healthy pig farmer, and the gastrointestinal tract was considered the route of infection. This case emphasized the need for awareness and recognition of S. suis as a zoonotic pathogen.
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Affiliation(s)
- Hyo Suk Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Myun Hee Lee
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Young Sun Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae Ki Choi
- Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Vaccine Bio Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea.
| | - Jin Hong Yoo
- Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Vaccine Bio Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
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