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Kweku D, Villalba MI, Willaert RG, Yantorno OM, Vela ME, Panorska AK, Kasas S. Machine learning method for the classification of the state of living organisms' oscillations. Front Bioeng Biotechnol 2024; 12:1348106. [PMID: 38515626 PMCID: PMC10955466 DOI: 10.3389/fbioe.2024.1348106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/13/2024] [Indexed: 03/23/2024] Open
Abstract
The World Health Organization highlights the urgent need to address the global threat posed by antibiotic-resistant bacteria. Efficient and rapid detection of bacterial response to antibiotics and their virulence state is crucial for the effective treatment of bacterial infections. However, current methods for investigating bacterial antibiotic response and metabolic state are time-consuming and lack accuracy. To address these limitations, we propose a novel method for classifying bacterial virulence based on statistical analysis of nanomotion recordings. We demonstrated the method by classifying living Bordetella pertussis bacteria in the virulent or avirulence phase, and dead bacteria, based on their cellular nanomotion signal. Our method offers significant advantages over current approaches, as it is faster and more accurate. Additionally, its versatility allows for the analysis of cellular nanomotion in various applications beyond bacterial virulence classification.
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Affiliation(s)
- David Kweku
- Department of Mathematics and Statistics, University of Nevada Reno, Reno, NV, United States
| | - Maria I. Villalba
- Laboratory of Biological Electron Microscopy, Ecole Polytechnique Fédérale de Lausanne (EPFL) and University of Lausanne, Lausanne, Switzerland
- International Joint Research Group VUB-EPFL BioNanotechnology and NanoMedicine (NANO), Brussels, Switzerland
| | - Ronnie G. Willaert
- International Joint Research Group VUB-EPFL BioNanotechnology and NanoMedicine (NANO), Brussels, Switzerland
- Research Group Structural Biology Brussels, Alliance Research Group VUB-UGhent NanoMicrobiology (NAMI), Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Osvaldo M. Yantorno
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), Facultad de Ciencias Exactas, Universidad Nacional de La Plata—CONICET, Buenos Aires, Argentina
| | - Maria E. Vela
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata—CONICET, Buenos Aires, Argentina
| | - Anna K. Panorska
- Department of Mathematics and Statistics, University of Nevada Reno, Reno, NV, United States
| | - Sandor Kasas
- Laboratory of Biological Electron Microscopy, Ecole Polytechnique Fédérale de Lausanne (EPFL) and University of Lausanne, Lausanne, Switzerland
- International Joint Research Group VUB-EPFL BioNanotechnology and NanoMedicine (NANO), Brussels, Switzerland
- Centre Universitaire Romand de Médecine Légale, Unité facultaire d’anatomie et de morphologie (UFAM), Université de Lausanne, Lausanne, Switzerland
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Martina P, Leguizamon M, Prieto CI, Sousa SA, Montanaro P, Draghi WO, Stämmler M, Bettiol M, de Carvalho CCCR, Palau J, Figoli C, Alvarez F, Benetti S, Lejona S, Vescina C, Ferreras J, Lasch P, Lagares A, Zorreguieta A, Leitão JH, Yantorno OM, Bosch A. Burkholderia puraquae sp. nov., a novel species of the Burkholderia cepacia complex isolated from hospital settings and agricultural soils. Int J Syst Evol Microbiol 2017; 68:14-20. [PMID: 29095137 DOI: 10.1099/ijsem.0.002293] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Bacteria from the Burkholderia cepacia complex (Bcc) are capable of causing severe infections in patients with cystic fibrosis (CF). These opportunistic pathogens are also widely distributed in natural and man-made environments. After a 12-year epidemiological surveillance involving Bcc bacteria from respiratory secretions of Argentinean patients with CF and from hospital settings, we found six isolates of the Bcc with a concatenated species-specific allele sequence that differed by more than 3 % from those of the Bcc with validly published names. According to the multilocus sequence analysis (MLSA), these isolates clustered with the agricultural soil strain, Burkholderia sp. PBP 78, which was already deposited in the PubMLST database. The isolates were examined using a polyphasic approach, which included 16S rRNA, recA, Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), DNA base composition, average nucleotide identities (ANIs), fatty acid profiles, and biochemical characterizations. The results of the present study demonstrate that the seven isolates represent a single novel species within the Bcc, for which the name Burkholderia puraquae sp. nov. is proposed. Burkholderia puraquae sp. nov. CAMPA 1040T (=LMG 29660T=DSM 103137T) was designated the type strain of the novel species, which can be differentiated from other species of the Bcc mainly from recA gene sequence analysis, MLSA, ANIb, MALDI-TOF MS analysis, and some biochemical tests, including the ability to grow at 42 °C, aesculin hydrolysis, and lysine decarboxylase and β-galactosidase activities.
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Affiliation(s)
- Pablo Martina
- CINDEFI, CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina.,Present address: IBS, CONICET-CCT Nordeste, Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Misiones, Argentina
| | - Mariana Leguizamon
- CINDEFI, CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Claudia I Prieto
- CINDEFI, CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Silvia A Sousa
- iBB-Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | | | - Walter O Draghi
- Fundación Instituto Leloir and IIBA-Consejo Nacional de Investigaciones Científicas y Tecnológicas, Buenos aires, Argentina.,IBBM, CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Maren Stämmler
- Proteomics and Spectroscopy Unit (ZBS6) at the Centre for Biological Threats and Special Pathogens, Robert Koch-Institut, Berlin, Germany
| | - Marisa Bettiol
- Sala de Microbiología, Hospital de Niños «Sor María Ludovica», La Plata, Buenos Aires, Argentina
| | - Carla C C R de Carvalho
- iBB-Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Juliana Palau
- Sala de Microbiología, Hospital de Niños «Sor María Ludovica», La Plata, Buenos Aires, Argentina
| | - Cecilia Figoli
- CINDEFI, CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Florencia Alvarez
- IBBM, CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Silvina Benetti
- Laboratorio Cemar D. S. L. A. C, Municipalidad de Rosario, Santa Fe, Argentina
| | - Sergio Lejona
- Laboratorio Cemar D. S. L. A. C, Municipalidad de Rosario, Santa Fe, Argentina
| | - Cecilia Vescina
- Sala de Microbiología, Hospital de Niños «Sor María Ludovica», La Plata, Buenos Aires, Argentina
| | - Julián Ferreras
- IBS, CONICET-CCT Nordeste, Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Misiones, Argentina
| | - Peter Lasch
- Proteomics and Spectroscopy Unit (ZBS6) at the Centre for Biological Threats and Special Pathogens, Robert Koch-Institut, Berlin, Germany
| | - Antonio Lagares
- IBBM, CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Angeles Zorreguieta
- Fundación Instituto Leloir and IIBA-Consejo Nacional de Investigaciones Científicas y Tecnológicas, Buenos aires, Argentina
| | - Jorge H Leitão
- iBB-Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Osvaldo M Yantorno
- CINDEFI, CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Alejandra Bosch
- CINDEFI, CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
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Dotto C, Lombarte Serrat A, Cattelan N, Barbagelata MS, Yantorno OM, Sordelli DO, Ehling-Schulz M, Grunert T, Buzzola FR. The Active Component of Aspirin, Salicylic Acid, Promotes Staphylococcus aureus Biofilm Formation in a PIA-dependent Manner. Front Microbiol 2017; 8:4. [PMID: 28167931 PMCID: PMC5253544 DOI: 10.3389/fmicb.2017.00004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Accepted: 01/03/2017] [Indexed: 01/10/2023] Open
Abstract
Aspirin has provided clear benefits to human health. But salicylic acid (SAL) -the main aspirin biometabolite- exerts several effects on eukaryote and prokaryote cells. SAL can affect, for instance, the expression of Staphylococcus aureus virulence factors. SAL can also form complexes with iron cations and it has been shown that different iron chelating molecules diminished the formation of S. aureus biofilm. The aim of this study was to elucidate whether the iron content limitation caused by SAL can modify the S. aureus metabolism and/or metabolic regulators thus changing the expression of the main polysaccharides involved in biofilm formation. The exposure of biofilm to 2 mM SAL induced a 27% reduction in the intracellular free Fe2+ concentration compared with the controls. In addition, SAL depleted 23% of the available free Fe2+ cation in culture media. These moderate iron-limited conditions promoted an intensification of biofilms formed by strain Newman and by S. aureus clinical isolates related to the USA300 and USA100 clones. The slight decrease in iron bioavailability generated by SAL was enough to induce the increase of PIA expression in biofilms formed by methicillin-resistant as well as methicillin-sensitive S. aureus strains. S. aureus did not produce capsular polysaccharide (CP) when it was forming biofilms under any of the experimental conditions tested. Furthermore, SAL diminished aconitase activity and stimulated the lactic fermentation pathway in bacteria forming biofilms. The polysaccharide composition of S. aureus biofilms was examined and FTIR spectroscopic analysis revealed a clear impact of SAL in a codY-dependent manner. Moreover, SAL negatively affected codY transcription in mature biofilms thus relieving the CodY repression of the ica operon. Treatment of mice with SAL induced a significant increase of S aureus colonization. It is suggested that the elevated PIA expression induced by SAL might be responsible for the high nasal colonization observed in mice. SAL-induced biofilms may contribute to S. aureus infection persistence in vegetarian individuals as well as in patients that frequently consume aspirin.
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Affiliation(s)
- Cristian Dotto
- Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Instituto de Investigaciones en Microbiología y Parasitología Médica, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires Buenos Aires, Argentina
| | - Andrea Lombarte Serrat
- Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Instituto de Investigaciones en Microbiología y Parasitología Médica, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires Buenos Aires, Argentina
| | - Natalia Cattelan
- Facultad de Ciencias Exactas, Centro de Investigación y Desarrollo de Fermentaciones Industriales (CINDEFI), Centro Científico Technológico Consejo Nacional de Investigaciones Científicas y Tócnicas (CTT CONICET La Plata), Universidad Nacional de La Plata La Plata, Argentina
| | - María S Barbagelata
- Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Instituto de Investigaciones en Microbiología y Parasitología Médica, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires Buenos Aires, Argentina
| | - Osvaldo M Yantorno
- Facultad de Ciencias Exactas, Centro de Investigación y Desarrollo de Fermentaciones Industriales (CINDEFI), Centro Científico Technológico Consejo Nacional de Investigaciones Científicas y Tócnicas (CTT CONICET La Plata), Universidad Nacional de La Plata La Plata, Argentina
| | - Daniel O Sordelli
- Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Instituto de Investigaciones en Microbiología y Parasitología Médica, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires Buenos Aires, Argentina
| | - Monika Ehling-Schulz
- Functional Microbiology, Institute for Microbiology, University of Veterinary Medicine Vienna, Austria
| | - Tom Grunert
- Functional Microbiology, Institute for Microbiology, University of Veterinary Medicine Vienna, Austria
| | - Fernanda R Buzzola
- Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Instituto de Investigaciones en Microbiología y Parasitología Médica, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires Buenos Aires, Argentina
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Prieto CI, Palau MJ, Martina P, Achiary C, Achiary A, Bettiol M, Montanaro P, Cazzola ML, Leguizamón M, Massillo C, Figoli C, Valeiras B, Perez S, Rentería F, Diez G, Yantorno OM, Bosch A. [Cystic Fibrosis Cloud database: An information system for storage and management of clinical and microbiological data of cystic fibrosis patients]. Rev Argent Microbiol 2016; 48:27-37. [PMID: 26895996 DOI: 10.1016/j.ram.2015.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 11/03/2015] [Accepted: 11/22/2015] [Indexed: 11/29/2022] Open
Abstract
The epidemiological and clinical management of cystic fibrosis (CF) patients suffering from acute pulmonary exacerbations or chronic lung infections demands continuous updating of medical and microbiological processes associated with the constant evolution of pathogens during host colonization. In order to monitor the dynamics of these processes, it is essential to have expert systems capable of storing and subsequently extracting the information generated from different studies of the patients and microorganisms isolated from them. In this work we have designed and developed an on-line database based on an information system that allows to store, manage and visualize data from clinical studies and microbiological analysis of bacteria obtained from the respiratory tract of patients suffering from cystic fibrosis. The information system, named Cystic Fibrosis Cloud database is available on the http://servoy.infocomsa.com/cfc_database site and is composed of a main database and a web-based interface, which uses Servoy's product architecture based on Java technology. Although the CFC database system can be implemented as a local program for private use in CF centers, it can also be used, updated and shared by different users who can access the stored information in a systematic, practical and safe manner. The implementation of the CFC database could have a significant impact on the monitoring of respiratory infections, the prevention of exacerbations, the detection of emerging organisms, and the adequacy of control strategies for lung infections in CF patients.
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Affiliation(s)
- Claudia I Prieto
- CINDEFI, CONICET-CCT La Plata, Centro de Biotecnología Aplicada, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - María J Palau
- Sala de Microbiología, Hospital de Niños «Sor María Ludovica», La Plata, Buenos Aires, Argentina
| | - Pablo Martina
- CINDEFI, CONICET-CCT La Plata, Centro de Biotecnología Aplicada, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Carlos Achiary
- Infocom S.A., Ciudad Autónoma de Buenos Aires, Argentina
| | - Andrés Achiary
- Infocom S.A., Ciudad Autónoma de Buenos Aires, Argentina
| | - Marisa Bettiol
- Sala de Microbiología, Hospital de Niños «Sor María Ludovica», La Plata, Buenos Aires, Argentina
| | | | - María L Cazzola
- Sala de Bacteriología, Hospital HIGA, La Plata, Buenos Aires, Argentina
| | - Mariana Leguizamón
- CINDEFI, CONICET-CCT La Plata, Centro de Biotecnología Aplicada, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Cintia Massillo
- CINDEFI, CONICET-CCT La Plata, Centro de Biotecnología Aplicada, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Cecilia Figoli
- CINDEFI, CONICET-CCT La Plata, Centro de Biotecnología Aplicada, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Brenda Valeiras
- CINDEFI, CONICET-CCT La Plata, Centro de Biotecnología Aplicada, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Silvia Perez
- Sala de Bacteriología, Hospital HIGA, La Plata, Buenos Aires, Argentina
| | - Fernando Rentería
- Servicio de Neumonología, Hospital de Niños «Sor María Ludovica», La Plata, Buenos Aires, Argentina
| | - Graciela Diez
- Servicio de Neumonología, Hospital de Niños «Sor María Ludovica», La Plata, Buenos Aires, Argentina
| | - Osvaldo M Yantorno
- CINDEFI, CONICET-CCT La Plata, Centro de Biotecnología Aplicada, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Alejandra Bosch
- CINDEFI, CONICET-CCT La Plata, Centro de Biotecnología Aplicada, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina.
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Arnal L, Grunert T, Cattelan N, de Gouw D, Villalba MI, Serra DO, Mooi FR, Ehling-Schulz M, Yantorno OM. Bordetella pertussis Isolates from Argentinean Whooping Cough Patients Display Enhanced Biofilm Formation Capacity Compared to Tohama I Reference Strain. Front Microbiol 2015; 6:1352. [PMID: 26696973 PMCID: PMC4672677 DOI: 10.3389/fmicb.2015.01352] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 11/16/2015] [Indexed: 11/13/2022] Open
Abstract
Pertussis is a highly contagious disease mainly caused by Bordetella pertussis. Despite the massive use of vaccines, since the 1950s the disease has become re-emergent in 2000 with a shift in incidence from infants to adolescents and adults. Clearly, the efficacy of current cellular or acellular vaccines, formulated from bacteria grown in stirred bioreactors is limited, presenting a challenge for future vaccine development. For gaining insights into the role of B. pertussis biofilm development for host colonization and persistence within the host, we examined the biofilm forming capacity of eight argentinean clinical isolates recovered from 2001 to 2007. All clinical isolates showed an enhanced potential for biofilm formation compared to the reference strain Tohama I. We further selected the clinical isolate B. pertussis 2723, exhibiting the highest biofilm biomass production, for quantitative proteomic profiling by means of two-dimensional fluorescence difference gel electrophoresis (2D-DIGE) coupled with mass spectrometry, which was accompanied by targeted transcriptional analysis. Results revealed an elevated expression of several virulence factors, including adhesins involved in biofilm development. In addition, we observed a higher expression of energy metabolism enzymes in the clinical isolate compared to the Tohama I strain. Furthermore, all clinical isolates carried a polymorphism in the bvgS gene. This mutation was associated to an increased sensitivity to modulation and a faster rate of adhesion to abiotic surfaces. Thus, the phenotypic biofilm characteristics shown by the clinical isolates might represent an important, hitherto underestimated, adaptive strategy for host colonization and long time persistence within the host.
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Affiliation(s)
- Laura Arnal
- CINDEFI-Centro Científico Tecnológico CONICET La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata Buenos Aires, Argentina
| | - Tom Grunert
- Functional Microbiology, Institute of Microbiology, Department of Pathobiology, University of Veterinary Medicine Vienna Vienna, Austria
| | - Natalia Cattelan
- CINDEFI-Centro Científico Tecnológico CONICET La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata Buenos Aires, Argentina
| | - Daan de Gouw
- Laboratory of Pediatric Infectious Diseases, Department of Pediatrics, Radboud University Medical Centre Nijmegen, Netherlands ; Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Centre Nijmegen, Netherlands
| | - María I Villalba
- CINDEFI-Centro Científico Tecnológico CONICET La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata Buenos Aires, Argentina
| | - Diego O Serra
- CINDEFI-Centro Científico Tecnológico CONICET La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata Buenos Aires, Argentina ; Mikrobiologie, Institut for Biologie, Humboldt-Universitat zu Berlin Berlin, Germany
| | - Frits R Mooi
- Netherlands Centre for Infectious Disease Control, National Institute for Public Health and the Environment Bilthoven, Netherlands
| | - Monika Ehling-Schulz
- Functional Microbiology, Institute of Microbiology, Department of Pathobiology, University of Veterinary Medicine Vienna Vienna, Austria
| | - Osvaldo M Yantorno
- CINDEFI-Centro Científico Tecnológico CONICET La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata Buenos Aires, Argentina
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Cattelan N, Dubey P, Arnal L, Yantorno OM, Deora R. Bordetella biofilms: a lifestyle leading to persistent infections. Pathog Dis 2015; 74:ftv108. [PMID: 26586694 DOI: 10.1093/femspd/ftv108] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2015] [Indexed: 12/21/2022] Open
Abstract
Bordetella bronchiseptica and B. pertussis are Gram-negative bacteria that cause respiratory diseases in animals and humans. The current incidence of whooping cough or pertussis caused by B. pertussis has reached levels not observed since the 1950s. Although pertussis is traditionally known as an acute childhood disease, it has recently resurged in vaccinated adolescents and adults. These individuals often become silent carriers, facilitating bacterial circulation and transmission. Similarly, vaccinated and non-vaccinated animals continue to be carriers of B. bronchiseptica and shed bacteria resulting in disease outbreaks. The persistence mechanisms of these bacteria remain poorly characterized. It has been proposed that adoption of a biofilm lifestyle allows persistent colonization of the mammalian respiratory tract. The history of Bordetella biofilm research is only a decade long and there is no single review article that has exclusively focused on this area. We systematically discuss the role of Bordetella factors in biofilm development in vitro and in the mouse respiratory tract. We further outline the implications of biofilms to bacterial persistence and transmission in humans and for the design of new acellular pertussis vaccines.
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Affiliation(s)
- Natalia Cattelan
- Microbial Biofilm Laboratory, CINDEFI-CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata (1900), Argentina
| | - Purnima Dubey
- Department of Pathology, Wake Forest School of Medicine, Medical Center Blvd., Winston-Salem, NC 27157, USA
| | - Laura Arnal
- Microbial Biofilm Laboratory, CINDEFI-CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata (1900), Argentina
| | - Osvaldo M Yantorno
- Microbial Biofilm Laboratory, CINDEFI-CONICET-CCT La Plata, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata (1900), Argentina
| | - Rajendar Deora
- Department of Microbiology and Immunology, Wake Forest School of Medicine, Medical Center Blvd., Winston-Salem, NC 27157, USA
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Arnal L, Longo G, Stupar P, Castez MF, Cattelan N, Salvarezza RC, Yantorno OM, Kasas S, Vela ME. Localization of adhesins on the surface of a pathogenic bacterial envelope through atomic force microscopy. Nanoscale 2015; 7:17563-17572. [PMID: 26446736 DOI: 10.1039/c5nr04644k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bacterial adhesion is the first and a significant step in establishing infection. This adhesion normally occurs in the presence of flow of fluids. Therefore, bacterial adhesins must be able to provide high strength interactions with their target surface in order to maintain the adhered bacteria under hydromechanical stressing conditions. In the case of B. pertussis, a Gram-negative bacterium responsible for pertussis, a highly contagious human respiratory tract infection, an important protein participating in the adhesion process is a 220 kDa adhesin named filamentous haemagglutinin (FHA), an outer membrane and also secreted protein that contains recognition domains to adhere to ciliated respiratory epithelial cells and macrophages. In this work, we obtained information on the cell-surface localization and distribution of the B. pertussis adhesin FHA using an antibody-functionalized AFM tip. Through the analysis of specific molecular recognition events we built a map of the spatial distribution of the adhesin which revealed a non-homogeneous pattern. Moreover, our experiments showed a force induced reorganization of the adhesin on the surface of the cells, which could explain a reinforced adhesive response under external forces. This single-molecule information contributes to the understanding of basic molecular mechanisms used by bacterial pathogens to cause infectious disease and to gain insights into the structural features by which adhesins can act as force sensors under mechanical shear conditions.
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Affiliation(s)
- L Arnal
- Centro de Investigación y Desarrollo de Fermentaciones Industriales (CINDEFI-CONICET-CCT La Plata), Facultad de Ciencias Exactas, UNLP. 50 No 227, 1900 La Plata, Argentina
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de Gouw D, Serra DO, de Jonge MI, Hermans PW, Wessels HJ, Zomer A, Yantorno OM, Diavatopoulos DA, Mooi FR. The vaccine potential of Bordetella pertussis biofilm-derived membrane proteins. Emerg Microbes Infect 2014; 3:e58. [PMID: 26038752 PMCID: PMC4150286 DOI: 10.1038/emi.2014.58] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Revised: 05/21/2014] [Accepted: 06/23/2014] [Indexed: 02/03/2023]
Abstract
Pertussis is an infectious respiratory disease of humans caused by the gram-negative pathogen Bordetella pertussis. The use of acellular pertussis vaccines (aPs) which induce immunity of relative short duration and the emergence of vaccine-adapted strains are thought to have contributed to the recent resurgence of pertussis in industrialized countries despite high vaccination coverage. Current pertussis vaccines consist of antigens derived from planktonic bacterial cultures. However, recent studies have shown that biofilm formation represents an important aspect of B. pertussis infection, and antigens expressed during this stage may therefore be potential targets for vaccination. Here we provide evidence that vaccination of mice with B. pertussis biofilm-derived membrane proteins protects against infection. Subsequent proteomic analysis of the protein content of biofilm and planktonic cultures yielded 11 proteins which were ≥three-fold more abundant in biofilms, of which Bordetella intermediate protein A (BipA) was the most abundant, surface-exposed protein. As proof of concept, mice were vaccinated with recombinantly produced BipA. Immunization significantly reduced colonization of the lungs and antibodies to BipA were found to efficiently opsonize bacteria. Finally, we confirmed that bipA is expressed during respiratory tract infection of mice, and that anti-BipA antibodies are present in the serum of convalescent whooping cough patients. Together, these data suggest that biofilm proteins and in particular BipA may be of interest for inclusion into future pertussis vaccines.
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Affiliation(s)
- Daan de Gouw
- Laboratory of Pediatric Infectious Diseases, Department of Pediatrics, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands ; Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands
| | - Diego O Serra
- Nijmegen Centre for Mitochondrial Disorders, Department of Laboratory Medicine, Radboud Proteomics Centre, Radboud University Medical Center , Nijmegen 6525 GA, The Netherlands
| | - Marien I de Jonge
- Laboratory of Pediatric Infectious Diseases, Department of Pediatrics, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands ; Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands
| | - Peter Wm Hermans
- Laboratory of Pediatric Infectious Diseases, Department of Pediatrics, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands ; Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands
| | - Hans Jct Wessels
- Netherlands Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM) , Bilthoven 3720 BA, The Netherlands
| | - Aldert Zomer
- Laboratory of Pediatric Infectious Diseases, Department of Pediatrics, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands ; Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands
| | - Osvaldo M Yantorno
- Nijmegen Centre for Mitochondrial Disorders, Department of Laboratory Medicine, Radboud Proteomics Centre, Radboud University Medical Center , Nijmegen 6525 GA, The Netherlands
| | - Dimitri A Diavatopoulos
- Laboratory of Pediatric Infectious Diseases, Department of Pediatrics, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands ; Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands
| | - Frits R Mooi
- Laboratory of Pediatric Infectious Diseases, Department of Pediatrics, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands ; Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center , Nijmegen 6500 HB, The Netherlands ; Facultad de Ciencias Exactas, Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), CONICET-CCT-La Plata, Universidad Nacional de La Plata , La Plata B1900 ASH, Argentina
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9
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Prieto C, Serra DO, Martina P, Jacobs M, Bosch A, Yantorno OM. Evaluation of biofilm-forming capacity of Moraxella bovis, the primary causative agent of infectious bovine keratoconjunctivitis. Vet Microbiol 2013; 166:504-15. [DOI: 10.1016/j.vetmic.2013.06.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Revised: 05/10/2013] [Accepted: 06/07/2013] [Indexed: 01/23/2023]
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10
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Ramos AN, Cabral MES, Noseda D, Bosch A, Yantorno OM, Valdez JC. Antipathogenic properties of Lactobacillus plantarum on Pseudomonas aeruginosa: the potential use of its supernatants in the treatment of infected chronic wounds. Wound Repair Regen 2012; 20:552-62. [PMID: 22642376 DOI: 10.1111/j.1524-475x.2012.00798.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Accepted: 02/27/2012] [Indexed: 11/29/2022]
Abstract
Pathogenic bacteria delay wound healing through several different mechanisms such as persistent production of inflammatory mediators or maintenance of necrotic neutrophils, which release cytolytic enzymes and free oxygen radicals. One of the most frequent pathogens isolated from infections in chronic wounds is Pseudomonas aeruginosa. This bacterium is extremely refractory to therapy and to host immune attack when it forms biofilms. Therefore, antibiotics and antiseptics are becoming useless in the treatment of these infections. In previous works, we demonstrated that Lactobacillus plantarum has an important antipathogenic capacity on P. aeruginosa. The aim of the present work was to elucidate the mechanism involved in the control of growth of P. aeruginosa on different surfaces by L. plantarum. For this purpose, we investigated the effects of L. plantarum supernatants on pathogenic properties of P. aeruginosa, such as adhesion, viability, virulence factors, biofilm formation, and quorum sensing signal expression. L. plantarum supernatants were able to inhibit pathogenic properties of P. aeruginosa by a quorum quenching mechanism. The antipathogenic properties mentioned above, together with the immunomodulatory, tissue repair, and angiogenesis properties in the supernatants of L. plantarum, make them an attractive option in infected chronic wound treatment.
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Affiliation(s)
- Alberto N Ramos
- Cátedra de Inmunología, Instituto de Microbiología, Facultad de Bioquímica, Química y Farmacia de la Universidad Nacional de Tucumán, San Miguel de Tucumán, Argentina.
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11
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Arnal L, Serra DO, Cattelan N, Castez MF, Vázquez L, Salvarezza RC, Yantorno OM, Vela ME. Adhesin contribution to nanomechanical properties of the virulent Bordetella pertussis envelope. Langmuir 2012; 28:7461-7469. [PMID: 22515332 DOI: 10.1021/la300811m] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Adherence to a biological surface allows bacteria to colonize and persist within the host and represents an essential first step in the pathogenesis of most bacterial diseases. Consequently, the physicochemical properties of the outer membrane in bacteria play a key role for attachment to surfaces and therefore for biofilm formation. Bordetella pertussis is a Gram-negative bacterium that colonizes the respiratory tract of humans, producing whooping cough or pertussis, a highly infectious disease. B. pertussis uses various adhesins exposed on its surface to promote cell-surface and cell-cell interactions. The most dominant adhesin function is displayed by filamentous hemagglutinin (FHA). B. pertussis Tohama I wild-type (Vir+) strain and two defective mutants, an avirulent (Vir-) and a FHA-deficient (FHA-) B. pertussis strains were studied by AFM under physiological conditions to evaluate how the presence or absence of adhesins affects the mechanical properties of the B. pertussis cell surface. Quantitative information on the nanomechanical properties of the bacterial envelope was obtained by AFM force-volume analysis. These studies suggested that the presence of virulence factors is correlated with an increase in the average membrane rigidity, which is largely influenced by the presence of FHA. Moreover, for this system we built a nanoscale stiffness map that reveals an inhomogeneous spatial distribution of Young modulus as well as the presence of rigid nanodomains on the cell surface.
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Affiliation(s)
- L Arnal
- Facultad de Ciencias Exactas, Centro de Investigación y Desarrollo de Fermentaciones Industriales (CINDEFI-CONICET-CCT La Plata), UNLP. 50 No. 227, 1900 La Plata, Argentina
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12
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Oderiz S, Palau MJ, Del Palacio P, Lewis MC, Bettiol MP, Martina P, Bosch A, Yantorno OM, Gatti BM. [Evaluation of commercial systems VITEK 2 and API 20NE for identification of Burkholderia cepacia complex bacteria from clinical samples]. Rev Argent Microbiol 2012; 43:168-75. [PMID: 22430988 DOI: 10.1590/s0325-75412011000300002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Accepted: 08/05/2011] [Indexed: 11/22/2022] Open
Abstract
Species belonging to the Burkholderia cepacia complex (BCC) are capable of causing chronic respiratory tract infections in patients suffering from cystic fibrosis as well as in immunocompromised individuals. Most of these species are highly resistant to antibiotic therapy, generating the need for their rapid and accurate detection for the proper treatment and clinical management of these patients. In this work, the polymerase chain reaction (PCR) technique based on the amplification of the recA gene (PCR-recA) was applied for an accurate identification of bacteria belonging to the BCC. Sensitivity (S) and specificity (E) of two biochemically-based commercial automated systems, API 20NE and VITEK 2 (bioMérieux®), and of the most representative biochemical manual tests for the identification of the Burkholderia cepacia complex were herein evaluated. The commercial systems VITEK 2 and API 20NE showed the following sensitivity and specificity vaues for identification to the species level, S: 71.1 %, E: 100 %, S: 69.7 %, E: 90.2 %, respectively. More complex results were observed for phenotypic manual tests, since BCC bacteria can undergo selective pressure to survive in chronic patients causing the loss of their typical phenotypic characteristics. The PCR-recA technique was easy to implement even in medium-complexity clinical diagnostic laboratories.
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Serra DO, Conover MS, Arnal L, Sloan GP, Rodriguez ME, Yantorno OM, Deora R. FHA-mediated cell-substrate and cell-cell adhesions are critical for Bordetella pertussis biofilm formation on abiotic surfaces and in the mouse nose and the trachea. PLoS One 2011; 6:e28811. [PMID: 22216115 PMCID: PMC3245231 DOI: 10.1371/journal.pone.0028811] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Accepted: 11/15/2011] [Indexed: 01/17/2023] Open
Abstract
Bordetella spp. form biofilms in the mouse nasopharynx, thereby providing a potential mechanism for establishing chronic infections in humans and animals. Filamentous hemagglutinin (FHA) is a major virulence factor of B. pertussis, the causative agent of the highly transmissible and infectious disease, pertussis. In this study, we dissected the role of FHA in the distinct biofilm developmental stages of B. pertussis on abiotic substrates and in the respiratory tract by employing a murine model of respiratory biofilms. Our results show that the lack of FHA reduced attachment and decreased accumulation of biofilm biomass on artificial surfaces. FHA contributes to biofilm development by promoting the formation of microcolonies. Absence of FHA from B. pertussis or antibody-mediated blockade of surface-associated FHA impaired the attachment of bacteria to the biofilm community. Exogenous addition of FHA resulted in a dose-dependent inhibitory effect on bacterial association with the biofilms. Furthermore, we show that FHA is important for the structural integrity of biofilms formed on the mouse nose and trachea. Together, these results strongly support the hypothesis that FHA promotes the formation and maintenance of biofilms by mediating cell-substrate and inter-bacterial adhesions. These discoveries highlight FHA as a key factor in establishing structured biofilm communities in the respiratory tract.
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Affiliation(s)
- Diego O. Serra
- Facultad de Ciencias Exactas, Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), CONICET-CCT-La Plata, Universidad Nacional de La Plata, La Plata, Argentina
| | - Matt S. Conover
- Program in Molecular Genetics, Wake Forest University Health Sciences, Winston-Salem, North Carolina, United States of America
| | - Laura Arnal
- Facultad de Ciencias Exactas, Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), CONICET-CCT-La Plata, Universidad Nacional de La Plata, La Plata, Argentina
| | - Gina Parise Sloan
- Department of Microbiology and Immunology, Wake Forest University Health Sciences, Winston-Salem, North Carolina, United States of America
| | - María E. Rodriguez
- Facultad de Ciencias Exactas, Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), CONICET-CCT-La Plata, Universidad Nacional de La Plata, La Plata, Argentina
| | - Osvaldo M. Yantorno
- Facultad de Ciencias Exactas, Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), CONICET-CCT-La Plata, Universidad Nacional de La Plata, La Plata, Argentina
- * E-mail: (RD); (OMY)
| | - Rajendar Deora
- Program in Molecular Genetics, Wake Forest University Health Sciences, Winston-Salem, North Carolina, United States of America
- Department of Microbiology and Immunology, Wake Forest University Health Sciences, Winston-Salem, North Carolina, United States of America
- * E-mail: (RD); (OMY)
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Abstract
Infectious bovine keratoconjunctivitis (IBK), caused by Moraxella bovis, is a disease of major importance in cattle industry. M. bovis has several virulence factors among which pili are crucial antigen for the protective capacity of vaccines against this disease. The production of vaccines against IBK therefore requires a reliable technique for cellular piliation level assessment on cells to be included as vaccine components. In this study we describe a specific whole-bacterial cell enzyme-linked immunosorbent assay (bact-ELISA) capable of detecting pili antigen on M. bovis cell surface. A sequential competitive bact-ELISA was developed using highly piliated M. bovis cells as antigen. Samples to be analyzed were allowed to react with anti-pilus serum prior to incubation in wells coated with piliated cells of M. bovis. This assay proved useful for the rapid, sensitive and reproducible evaluation of piliation on M. bovis cells, and represents an important tool for cellular piliation monitoring daburing M. bovis cells production in stirred bioreactors.
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Affiliation(s)
- Claudia I Prieto
- Facultad de Ciencias Exactas, Centro de Investigación y Desarrollo en Fermentaciones Industriales, Universidad Nacional de La Plata (UNLP), Calle 47 y 115, 1900, La Plata, Argentina
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15
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Prieto CI, Aguilar OM, Yantorno OM. Analyses of lipopolysaccharides, outer membrane proteins and DNA fingerprints reveal intraspecies diversity in Moraxella bovis isolated in Argentina. Vet Microbiol 1999; 70:213-23. [PMID: 10596805 DOI: 10.1016/s0378-1135(99)00142-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Intra-specific diversity within Moraxella bovis was investigated analysing DNA fingerprints, outer membrane proteins (OMP) and lipopolysaccharides (LPS) profiles. Three collection strains and 57 isolates of M. bovis, collected during 3 years from cattle with infectious bovine keratoconjunctivitis (IBK) symptoms, from diverse geographical locations of Argentina, were examined. The LPS and OMP profiles were studied through SDS-PAGE analysis and genotype was determined by PCR-DNA fingerprinting. Genotyping identified five DNA types while analysis of LPS and OMP profiles identified three rough LPS types and three OMP types among the 60 isolates of M. bovis including the three collection strains. None of the three methods employed to assess diversity was discriminating when used alone because the degree of heterogeneity in each group of surface structures was limited, but when data of each typing method were combined, 15 distinct subgroups were determined. This subgrouping was clearly able to differentiate isolates of the same genotype. These typing methods appear to be useful to assess different aspects of the disease such as the diversity within a population of M. bovis associated to epidemic conditions, track the causal agent in an outbreak of the disease, monitoring vaccination programs and studies on virulence.
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Affiliation(s)
- C I Prieto
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Argentina
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Abstract
Cells of Bordetella pertussis grown in a bioreactor under stirring conditions were studied to investigate the effect of shear stress on cellular-bound filamentous haemagglutinin (FHA). FHA attached to the bacterial surface, unlike extracellular FHA, was not affected at the shear levels tested. Moreover, no other cellular immunogen involved in the whole-cell protective activity seemed to be affected by hydromechanical forces.
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Affiliation(s)
- M E Rodriguez
- Centro de Investigación y Desarrollo de Fermentaciones Industriales (CINDEFI), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Argentina
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Rodríguez ME, Samo AL, Hozbor DF, Yantorno OM. Effect of hydromechanical forces on the production of filamentous haemagglutinin and pertussis toxin of Bordetella pertussis. J Ind Microbiol 1993; 12:103-8. [PMID: 7764157 DOI: 10.1007/bf01569909] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The production of Bordetella pertussis extracytoplasmic filamentous haemagglutinin (FHA) and pertussis toxin (PT) in a bioreactor under stirring conditions was studied in order to investigate the effect of hydromechanical forces on yields of both antigens. It was shown that FHA loses its haemagglutinin activity when the power transmitted by the agitator and the aerator per unit volume increases, whereas PT production is not affected. The loss of FHA activity can be explained by the action of shear forces on the filamentous structure of this antigen.
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Affiliation(s)
- M E Rodríguez
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), Facultad de Ciencias Exactas UNLP, La Plata, Argentina
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18
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Yantorno OM, Mazza LA, Balatti AP. [Production of Brucella abortus strain 19]. Rev Latinoam Microbiol 1985; 27:301-7. [PMID: 3939262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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