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Tsai IA, Su Y, Wang YH, Chu C. Alterations in Genes rib, scpB and Pilus Island Decrease the Prevalence of Predominant Serotype V, Not III and VI, of Streptococcus agalactiae from 2008 to 2012. Pathogens 2022; 11:pathogens11101145. [PMID: 36297202 PMCID: PMC9611264 DOI: 10.3390/pathogens11101145] [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: 08/10/2022] [Revised: 09/27/2022] [Accepted: 09/30/2022] [Indexed: 11/05/2022] Open
Abstract
Streptococcus agalactiae (GBS) can infect newborns, pregnant women and immunocompromised or elderly people. This study aimed to investigate differences in three pilus genes and virulence genes pavA, cfb, rib and scpB and changes in predominant serotypes III, V and VI from 2008 to 2012. The susceptibilities to penicillin, ceftriaxone, azithromycin, erythromycin, clindamycin, levofloxacin and moxifloxacin of 145 GBS strains of serotype III, V and VI strains from 2008 and 2012 were determined using disc diffusion method. PCR identification of ST-17, the pilus genes and virulence genes; multilocus sequence typing (MLST); and conserved domain and phylogenetic analysis of scpB-1 and scpB-2 proteins were performed. A dramatic number reduction was observed in serotype V, not III and V, from 2008 to 2012. The rate of resistance to azithromycin, clindamycin and erythromycin was the highest in serotype V. ST-17 was only found in serotype III with pilus genes PI-1+PI-2b. The major pilus genotype was PI-1+PI-2a. Serotype V without the rib gene was reduced in number between two studied years. Compared to scpB-1, scpB-2 had a 128-bp deletion in a PA C5a-like peptidase domain and putative integrin-binding motif RGD. In conclusion, reduction in serotype V may be due to presence of scpB-2 or lack of genes scpB and rib.
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Affiliation(s)
- I-An Tsai
- Ph.D. Program of Agriculture Science, College of Agriculture, National Chiayi University, Chiayi City 600, Taiwan
| | - Yaochi Su
- Ph.D. Program of Agriculture Science, College of Agriculture, National Chiayi University, Chiayi City 600, Taiwan
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chiayi University, Chiayi City 600, Taiwan
| | - Ying-Hsiang Wang
- Department of Pediatrics, Chang Gung Memorial Hospital, Puzi City 613, Taiwan
| | - Chishih Chu
- Department of Microbiology, Immunology and Biopharmaceuticals, College of Life Sciences, National Chiayi University, Chiayi City 600, Taiwan
- Correspondence: ; Tel.: +886-5-2717898
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Gupalova T, Leontieva G, Kramskaya T, Grabovskaya K, Bormotova E, Korjevski D, Suvorov A. Development of experimental GBS vaccine for mucosal immunization. PLoS One 2018; 13:e0196564. [PMID: 29727446 PMCID: PMC5935385 DOI: 10.1371/journal.pone.0196564] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 04/16/2018] [Indexed: 12/17/2022] Open
Abstract
Streptococcus agalactiae, or group B streptococcus (GBS), is an important pathogen as it is the leading cause of neonatal deaths due to sepsis, meningitis or bacterial pneumonia. Although the development of an effective and safe GBS vaccine is on the agenda of many research labs, there is no GBS vaccine on the market yet. In the present study we attempted to engineer a live vaccine strain based on Bac, a surface protein of GBS, incorporated into a surface fimbrial protein of probiotic Enterococcus. The resulting strain induced specific systemic and local immune responses in mice and provided protection against GBS when administered via the intranasal, oral or intravaginal immunization routes.
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MESH Headings
- Administration, Intranasal
- Administration, Intravaginal
- Administration, Oral
- Animals
- Antibodies, Bacterial/biosynthesis
- Antibodies, Bacterial/blood
- Bacterial Load
- Bacterial Proteins/genetics
- Bacterial Proteins/immunology
- Enterococcus faecium/genetics
- Enterococcus faecium/immunology
- Female
- Fimbriae Proteins/genetics
- Fimbriae Proteins/immunology
- Immunity, Mucosal
- Mice
- Probiotics
- Streptococcal Infections/immunology
- Streptococcal Infections/microbiology
- Streptococcal Infections/prevention & control
- Streptococcal Vaccines/administration & dosage
- Streptococcal Vaccines/genetics
- Streptococcal Vaccines/immunology
- Streptococcus agalactiae/genetics
- Streptococcus agalactiae/immunology
- Streptococcus agalactiae/pathogenicity
- Vaccines, Conjugate/administration & dosage
- Vaccines, Conjugate/genetics
- Vaccines, Conjugate/immunology
- Vaccines, Synthetic/administration & dosage
- Vaccines, Synthetic/genetics
- Vaccines, Synthetic/immunology
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Affiliation(s)
- T. Gupalova
- Institute of Experimental Medicine, Saint-Petersburg, Russia
| | - G. Leontieva
- Institute of Experimental Medicine, Saint-Petersburg, Russia
- * E-mail:
| | - T. Kramskaya
- Institute of Experimental Medicine, Saint-Petersburg, Russia
| | - K. Grabovskaya
- Institute of Experimental Medicine, Saint-Petersburg, Russia
| | - E. Bormotova
- Institute of Experimental Medicine, Saint-Petersburg, Russia
| | - D. Korjevski
- Institute of Experimental Medicine, Saint-Petersburg, Russia
| | - A. Suvorov
- Institute of Experimental Medicine, Saint-Petersburg, Russia
- Saint Petersburg State University, Saint-Petersburg, Russia
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Desheva YA, Leontieva GF, Kramskaya TA, Smolonogina TA, Grabovskaya KB, Kiseleva IV, Rudenko LG, Suvorov AN. Evaluation in Mouse Model of Combined Virus-bacterial Vaccine Based on Attenuated Influenza A(H7N3) Virus and the Group B Streptococcus Recombinant Polypeptides. Open Microbiol J 2016; 10:168-175. [PMID: 27867430 PMCID: PMC5101632 DOI: 10.2174/1874285801610010168] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 10/06/2016] [Accepted: 10/06/2016] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Secondary bacterial influenza complications are a common cause of excesses morbidity and mortality, which determines the need to develop means for specific prophylaxis. Group B streptococcal infection is especially common cause of pneumonia among children and the elderly with underlying conditions. Here we investigate in a mouse model the effects of combined intranasal immunization using live attenuated influenza vaccine and recombinant polypeptides based on group B Streptococcus surface proteins. METHODS Groups of outbred mice received two doses of the following preparations: 1) the reassortant A/17/Mallard/Netherlands/00/95 (H7N3) influenza virus; 2) a mixture of P6, ScaAB, ScpB1 and Stv recombinant GBS proteins (20 µg total); 3) the A(H7N3) influenza vaccine pooled with the four bacterial peptide preparation; 4) control animals were treated with PBS. RESULTS Intranasal vaccination using LAIV in combination with GBS polypeptides provided advantageous protection against infections with homologous A/Mallard/Netherlands/12/00 (H7N3) wild type virus or heterologous A/Puerto Rico/8/34 (H1N1) followed by serotype II GBS infection. Also, combined vaccination improved bacterial clearance from the lungs of mice. CONCLUSION Intranasal immunization with LAIV+GBSV was safe and enabled to induce the antibody response to each of vaccine components. Thus, the combined vaccine increased the protective effect against influenza and its bacterial complications in mice compared to LAIV-only.
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Affiliation(s)
- Yulia A Desheva
- Federal State Budgetary Scientific Institution "Institute of Experimental Medicine", Saint Petersburg, Russian Federation; Saint Petersburg State University, Saint Petersburg, Russian Federation
| | - Galina F Leontieva
- Federal State Budgetary Scientific Institution "Institute of Experimental Medicine", Saint Petersburg, Russian Federation
| | - Tatiana A Kramskaya
- Federal State Budgetary Scientific Institution "Institute of Experimental Medicine", Saint Petersburg, Russian Federation
| | - Tatiana A Smolonogina
- Federal State Budgetary Scientific Institution "Institute of Experimental Medicine", Saint Petersburg, Russian Federation
| | - Kornelia B Grabovskaya
- Federal State Budgetary Scientific Institution "Institute of Experimental Medicine", Saint Petersburg, Russian Federation
| | - Irina V Kiseleva
- Federal State Budgetary Scientific Institution "Institute of Experimental Medicine", Saint Petersburg, Russian Federation; Saint Petersburg State University, Saint Petersburg, Russian Federation
| | - Larisa G Rudenko
- Federal State Budgetary Scientific Institution "Institute of Experimental Medicine", Saint Petersburg, Russian Federation
| | - Alexander N Suvorov
- Federal State Budgetary Scientific Institution "Institute of Experimental Medicine", Saint Petersburg, Russian Federation; Saint Petersburg State University, Saint Petersburg, Russian Federation
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Henningham A, Gillen CM, Walker MJ. Group a streptococcal vaccine candidates: potential for the development of a human vaccine. Curr Top Microbiol Immunol 2012; 368:207-42. [PMID: 23250780 DOI: 10.1007/82_2012_284] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Currently there is no commercial Group A Streptococcus (GAS; S. pyogenes) vaccine available. The development of safe GAS vaccines is challenging, researchers are confronted with obstacles such as the occurrence of many unique serotypes (there are greater than 150 M types), antigenic variation within the same serotype, large variations in the geographical distribution of serotypes, and the production of antibodies cross-reactive with human tissue which can lead to host auto-immune disease. Cell wall anchored, cell membrane associated, secreted and anchorless proteins have all been targeted as GAS vaccine candidates. As GAS is an exclusively human pathogen, the quest for an efficacious vaccine is further complicated by the lack of an animal model which mimics human disease and can be consistently and reproducibly colonized by multiple GAS strains.
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Affiliation(s)
- Anna Henningham
- School of Chemistry and Molecular Biosciences and Australian Infectious Disease Research Centre, University of Queensland, St Lucia, QLD 4072, Australia
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Borges F, Layec S, Fernandez A, Decaris B, Leblond-Bourget N. High genetic variability of the Streptococcus thermophilus cse central part, a repeat rich region required for full cell segregation activity. Antonie van Leeuwenhoek 2006; 90:245-55. [PMID: 16902754 DOI: 10.1007/s10482-006-9079-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2006] [Accepted: 04/11/2006] [Indexed: 11/25/2022]
Abstract
The cse gene of Streptococcus thermophilus encodes an extracytoplasmic protein involved in cell segregation. The Cse protein consists of two putative domains: a cell wall attachment LysM domain and a catalytic CHAP domain. These two domains are spaced by an interdomain linker, known as Var-Cse, previously reported to be highly divergent between two S. thermophilus strains. The aim of this study was to assess the extent of this intraspecific variability and the functional involvement of the var-cse region in cell segregation. Analysis of the var-cse sequence of 19 different strains allowed detection of 11 different alleles, varying from 390 bp to 543 bp, all containing interspersed and tandem nucleotides repeats. Overall, 11 different repeat units were identified and some series of these small repeats, named supermotifs, form large repeats. Results suggested that var-cse evolved by deletion of all or part of the repeats and by duplication of repeats or supermotifs. Moreover, sequence analysis of the whole cse locus revealed that the cse ORF is mosaic suggesting that var-cse polymorphism resulted from horizontal transfer. The partial deletion of the var-cse region of the S. thermophilus strain CNRZ368 led to the lengthening of the number of cells per streptococcal chain, indicating that this region is required for full cell segregation in S. thermophilus strain CNRZ368.
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Affiliation(s)
- Frédéric Borges
- Laboratoire de Génétique et Microbiologie, UMR INRA 1128, IFR 110, Faculté des Sciences et Techniques de l'Université Henri Poincaré Nancy 1, BP 239, 54506, Vandoeuvre-lès-Nancy, France
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Johansson BP, Levander F, von Pawel-Rammingen U, Berggård T, Björck L, James P. The Protein Expression of Streptococcus pyogenes Is Significantly Influenced by Human Plasma. J Proteome Res 2005; 4:2302-11. [PMID: 16335979 DOI: 10.1021/pr050217y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
During the course of infection, the common human pathogen Streptococcus pyogenes encounters plasma. We show that plasma causes S. pyogenes to rapidly remodel its cellular metabolism and virulence pathways. We also identified a variant of the major virulence factor, M1 protein, lacking 13 amino acids at the NH(2)-terminus in bacteria grown with plasma. The pronounced effect of plasma on protein expression, suggests this is an important adaptive mechanism with implications for S. pyogenes pathogenicity.
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Lindahl G, Stålhammar-Carlemalm M, Areschoug T. Surface proteins of Streptococcus agalactiae and related proteins in other bacterial pathogens. Clin Microbiol Rev 2005; 18:102-27. [PMID: 15653821 PMCID: PMC544178 DOI: 10.1128/cmr.18.1.102-127.2005] [Citation(s) in RCA: 261] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Streptococcus agalactiae (group B Streptococcus) is the major cause of invasive bacterial disease, including meningitis, in the neonatal period. Although prophylactic measures have contributed to a substantial reduction in the number of infections, development of a vaccine remains an important goal. While much work in this field has focused on the S. agalactiae polysaccharide capsule, which is an important virulence factor that elicits protective immunity, surface proteins have received increasing attention as potential virulence factors and vaccine components. Here, we summarize current knowledge about S. agalactiae surface proteins, with emphasis on proteins that have been characterized immunochemically and/or elicit protective immunity in animal models. These surface proteins have been implicated in interactions with human epithelial cells, binding to extracellular matrix components, and/or evasion of host immunity. Of note, several S. agalactiae surface proteins are related to surface proteins identified in other bacterial pathogens, emphasizing the general interest of the S. agalactiae proteins. Because some S. agalactiae surface proteins elicit protective immunity, they hold promise as components in a vaccine based only on proteins or as carriers in polysaccharide conjugate vaccines.
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Affiliation(s)
- Gunnar Lindahl
- Department of Medical Microbiology, Dermatology and Infection, Lund University, Sölvegatan 23, SE-22362 Lund, Sweden.
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Yother J, Trieu-Cuot P, Klaenhammer TR, De Vos WM. Genetics of streptococci, lactococci, and enterococci: review of the sixth international conference. J Bacteriol 2002; 184:6085-92. [PMID: 12399476 PMCID: PMC151966 DOI: 10.1128/jb.184.22.6085-6092.2002] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Janet Yother
- Department of Microbiology, University of Alabama at Birmingham, 35294, USA.
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