1
|
Santos LM, Rodrigues DM, Alves BVB, Kalil MA, Azevedo V, Barh D, Meyer R, Duran N, Tasic L, Portela RW. Activity of biogenic silver nanoparticles in planktonic and biofilm-associated Corynebacterium pseudotuberculosis. PeerJ 2024; 12:e16751. [PMID: 38406288 PMCID: PMC10885795 DOI: 10.7717/peerj.16751] [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: 09/11/2023] [Accepted: 12/13/2023] [Indexed: 02/27/2024] Open
Abstract
Corynebacterium pseudotuberculosis is a gram-positive bacterium and is the etiologic agent of caseous lymphadenitis (CL) in small ruminants. This disease is characterized by the development of encapsulated granulomas in visceral and superficial lymph nodes, and its clinical treatment is refractory to antibiotic therapy. An important virulence factor of the Corynebacterium genus is the ability to produce biofilm; however, little is known about the characteristics of the biofilm produced by C. pseudotuberculosis and its resistance to antimicrobials. Silver nanoparticles (AgNPs) are considered as promising antimicrobial agents, and are known to have several advantages, such as a broad-spectrum activity, low resistance induction potential, and antibiofilm activity. Therefore, we evaluate herein the activity of AgNPs in C. pseudotuberculosis, through the determination of minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), antibiofilm activity, and visualization of AgNP-treated and AgNP-untreated biofilm through scanning electron microscopy. The AgNPs were able to completely inhibit bacterial growth and inactivate C. pseudotuberculosis at concentrations ranging from 0.08 to 0.312 mg/mL. The AgNPs reduced the formation of biofilm in reference strains and clinical isolates of C. pseudotuberculosis, with interference values greater than 80% at a concentration of 4 mg/mL, controlling the change between the planktonic and biofilm-associated forms, and preventing fixation and colonization. Scanning electron microscopy images showed a significant disruptive activity of AgNP on the consolidated biofilms. The results of this study demonstrate the potential of AgNPs as an effective therapeutic agent against CL.
Collapse
Affiliation(s)
- Laerte Marlon Santos
- Instituto de Ciencias da Saude, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | | | | | | | - Vasco Azevedo
- Instituto de Ciencias Biologicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Debmalya Barh
- Instituto de Ciencias Biologicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Institute of Integrative Omics and Applied Biotechnology, Nonakuri, West Bengal, India
| | - Roberto Meyer
- Instituto de Ciencias da Saude, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Nelson Duran
- Instituto de Biologia, Universidade Estadual de Campinas, Campinas, Sao Paulo, Brazil
| | - Ljubica Tasic
- Instituto de Quimica, Universidade Estadual de Campinas, Campinas, Sao Paulo, Brazil
| | | |
Collapse
|
2
|
Nicoleti JL, Façanha DA, Kalil MA, Fonseca EP, Barral TD, Sampaio JR, Meyer R, Portela RW. Hematological and clinical biochemistry profiles in Canindé goats infected by Corynebacterium pseudotuberculosis and bred in a tropical semi-arid region. Trop Anim Health Prod 2023; 55:11. [DOI: 10.1007/s11250-022-03431-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022]
|
3
|
Torky HA, Saad HM, Khaliel SA, Kassih AT, Sabatier JM, Batiha GES, Hetta HF, Elghazaly EM, De Waard M. Isolation and Molecular Characterization of Corynebacterium pseudotuberculosis: Association with Proinflammatory Cytokines in Caseous Lymphadenitis Pyogranulomas. Animals (Basel) 2023; 13:ani13020296. [PMID: 36670836 PMCID: PMC9854522 DOI: 10.3390/ani13020296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/30/2022] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Corynebacterium pseudotuberculosis (C. pseudotuberculosis) is a causative agent of numerous chronic diseases, including caseous lymphadenitis (CLA) in sheep and goats, which has a zoonotic potential in humans in addition to a poor therapeutic response. In this study, out of 120 collected samples, only 12 (10%) were positive for C. pseudotuberculosis by PCR and by intraperitoneal injection of male Guinea pigs and then characterized for antimicrobial susceptibility and its genetic-relatedness by enterobacterial repetitive intergenic consensus polymerase chain reaction (ERIC-PCR), which showed 2-4 bands ranging from 100 to 3000 bp that can be clustered into four clusters (C1-C4). Despite the serotype biovar 1 only infecting sheep and goats, ERIC-PCR reveals intra-subtyping variation. Examination of affected LNs and organs revealed marked enlargement with either thick creamy green pus or multiple abscesses of variable sizes with a central caseated core surrounded by dense fibrous capsule. A histopathological examination revealed a central necrotic core surrounded by a peripheral mantle of mononuclear cells and a fibrous capsule. Positive immune expression of nuclear factor kappa B (NF-κB/p65) and interleukin-1β (IL-1β) and negative expression of tumor necrosis factor (TNF) in CLA is the first report to our knowledge. Conclusion: In CLA pyogranulomas, IL1β is a more crucial proinflammatory cytokine than TNF in the regulation of C. pseudotuberculosis infection, which is accompanied by marked NF-κB immunoexpression. Therefore, the NF-κB/p65 signaling pathway is involved in the activation of IL1β, and additional immunohistochemical studies are required to determine the various roles of NF-κB/p65 in the inflammatory response within CLA pyogranulomas to control this pathogen.
Collapse
Affiliation(s)
- Helmy A. Torky
- Department of Microbiology, Faculty of Veterinary Medicine, Alexandria University, Abees, Alexandria 21523, Egypt
| | - Hebatallah M. Saad
- Department of Pathology, Faculty of Veterinary Medicine, Matrouh University, Marsa Matruh 51744, Egypt
- Correspondence: (H.M.S.); (M.D.W.)
| | - Samy A. Khaliel
- Department of Microbiology, Faculty of Veterinary Medicine, Alexandria University, Abees, Alexandria 21523, Egypt
| | - Asmaa T. Kassih
- Department of Microbiology, Faculty of Veterinary Medicine, Alexandria University, Abees, Alexandria 21523, Egypt
| | - Jean-Marc Sabatier
- Institut de Neurophysiopathologie (INP), CNRS UMR 7051, Faculté des Sciences Médicales et Paramédicales, Aix-Marseille Université, 27 Bd Jean Moulin, F-13005 Marseille, France
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt
| | - Helal F. Hetta
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Eman M. Elghazaly
- Department of Microbiology, Faculty of Veterinary Medicine, Matrouh University, Marsa Matruh 51744, Egypt
| | - Michel De Waard
- Smartox Biotechnology, 6 Rue des Platanes, F-38120 Saint-Egrève, France
- L’institut Du Thorax, INSERM, CNRS, UNIV NANTES, F-44007 Nantes, France
- LabEx «Ion Channels, Science & Therapeutics», Université de Nice Sophia-Antipolis, F-06560 Valbonne, France
- Correspondence: (H.M.S.); (M.D.W.)
| |
Collapse
|
4
|
Barral TD, Infantes-Lorenzo JA, Moreno I, de Garnica García MG, de Val BP, Gortázar C, Meyer R, Portela RD, Domínguez L, Domínguez M, Balseiro A. P22 protein complex in the serodiagnosis of animal tuberculosis: Antigenic stability and cross-reactivity with Corynebacterium pseudotuberculosis infection. Comp Immunol Microbiol Infect Dis 2022; 90-91:101891. [DOI: 10.1016/j.cimid.2022.101891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 09/24/2022] [Accepted: 10/05/2022] [Indexed: 11/26/2022]
|
5
|
Barral TD, Rebouças MF, Loureiro D, Raynal JT, Sousa TJ, Moura-Costa LF, Azevedo V, Meyer R, Portela RW. Chemokine production induced by Corynebacterium pseudotuberculosis in a murine model. Braz J Microbiol 2022; 53:1019-1027. [PMID: 35138630 PMCID: PMC9151972 DOI: 10.1007/s42770-022-00694-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 02/01/2022] [Indexed: 02/01/2023] Open
Abstract
Corynebacterium pseudotuberculosis is the etiological agent of caseous lymphadenitis. The main clinical sign of this disease is the development of granulomas, especially in small ruminants; however, the pathways that are involved in the formation and maintenance of these granulomas are unknown. Cytokines and chemokines are responsible for the migration of immune cells to specific sites and tissues; therefore, it is possible that chemokines participate in abscess formation. This study aimed to evaluate the induction of chemokine production by two C. pseudotuberculosis strains in a murine model. A highly pathogenic (VD57) and an attenuated (T1) strain of C. pseudotuberculosis, as well as somatic and secreted antigens derived from these strains, was used to stimulate murine splenocytes. Then, the concentrations of the chemokines CCL-2, CCL-3, CCL-4, and CCL-5 and the cytokines IL-1 and TNF were measured in the culture supernatants. The VD57 strain had a higher ability to stimulate the production of chemokines when compared to T1 strain, especially in the early stages of stimulation, which can have an impact on granuloma formation. The T1 lysate antigen was able to stimulate most of the chemokines studied herein when compared to the other antigenic fractions of both strains. These results indicate that C. pseudotuberculosis is a chemokine production inducer, and the bacterial strains differ in their induction pattern, a situation that can be related to the specific behavior of each strain.
Collapse
Affiliation(s)
- Thiago Doria Barral
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia State, 40110-100, Brazil
| | - Miriam Flores Rebouças
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia State, 40110-100, Brazil
| | - Dan Loureiro
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia State, 40110-100, Brazil
| | - José Tadeu Raynal
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia State, 40110-100, Brazil
| | - Thiago Jesus Sousa
- Laboratory of Molecular and Cellular Genetics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais State, 31270-901, Brazil
| | - Lilia Ferreira Moura-Costa
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia State, 40110-100, Brazil
| | - Vasco Azevedo
- Laboratory of Molecular and Cellular Genetics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais State, 31270-901, Brazil
| | - Roberto Meyer
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia State, 40110-100, Brazil
| | - Ricardo Wagner Portela
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia State, 40110-100, Brazil.
| |
Collapse
|
6
|
Marques da Silva W, Seyffert N, Silva A, Azevedo V. A journey through the Corynebacterium pseudotuberculosis proteome promotes insights into its functional genome. PeerJ 2022; 9:e12456. [PMID: 35036114 PMCID: PMC8710256 DOI: 10.7717/peerj.12456] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 10/18/2021] [Indexed: 11/28/2022] Open
Abstract
Background Corynebacterium pseudotuberculosis is a Gram-positive facultative intracellular pathogen and the etiologic agent of illnesses like caseous lymphadenitis in small ruminants, mastitis in dairy cattle, ulcerative lymphangitis in equines, and oedematous skin disease in buffalos. With the growing advance in high-throughput technologies, genomic studies have been carried out to explore the molecular basis of its virulence and pathogenicity. However, data large-scale functional genomics studies are necessary to complement genomics data and better understating the molecular basis of a given organism. Here we summarize, MS-based proteomics techniques and bioinformatics tools incorporated in genomic functional studies of C. pseudotuberculosis to discover the different patterns of protein modulation under distinct environmental conditions, and antigenic and drugs targets. Methodology In this study we performed an extensive search in Web of Science of original and relevant articles related to methods, strategy, technology, approaches, and bioinformatics tools focused on the functional study of the genome of C. pseudotuberculosis at the protein level. Results Here, we highlight the use of proteomics for understating several aspects of the physiology and pathogenesis of C. pseudotuberculosis at the protein level. The implementation and use of protocols, strategies, and proteomics approach to characterize the different subcellular fractions of the proteome of this pathogen. In addition, we have discussed the immunoproteomics, immunoinformatics and genetic tools employed to identify targets for immunoassays, drugs, and vaccines against C. pseudotuberculosis infection. Conclusion In this review, we showed that the combination of proteomics and bioinformatics studies is a suitable strategy to elucidate the functional aspects of the C. pseudotuberculosis genome. Together, all information generated from these proteomics studies allowed expanding our knowledge about factors related to the pathophysiology of this pathogen.
Collapse
Affiliation(s)
- Wanderson Marques da Silva
- Institute of Agrobiotechnology and Molecular Biology-(INTA/CONICET), Hurlingham, Buenos Aires, Argentina
| | - Nubia Seyffert
- Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Artur Silva
- Laboratory of Genomics and Bioinformatics, Center of Genomics and Systems Biology, Institute of Biological Sciences, Federal University of Para, Belém, Pará, Brazil
| | - Vasco Azevedo
- Genetics, Ecology and Evolution, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| |
Collapse
|
7
|
Menberu MA, Cooksley C, Ramezanpour M, Bouras G, Wormald PJ, Psaltis AJ, Vreugde S. In vitro and in vivo evaluation of probiotic properties of Corynebacterium accolens isolated from the human nasal cavity. Microbiol Res 2021; 255:126927. [PMID: 34875424 DOI: 10.1016/j.micres.2021.126927] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/26/2021] [Accepted: 11/22/2021] [Indexed: 11/17/2022]
Abstract
Corynebacterium accolens strains are increasingly recognized as beneficial bacteria that can confer a health benefit on the host. In the current study, the probiotic potential of three C. accolens strains, C779, C781 and C787 derived from a healthy human nasal cavity were investigated. These strains were examined for their adhesion to HNECs, competition with Staphylococcus aureus for adhesion, toxicity, induction of IL-6, antibiotic susceptibility and the presence of antibiotic resistance and virulence genes. Furthermore, the safety and efficacy of strains were evaluated in vivo using Caenorhabditis elegans. The adhesion capacity of C. accolens to HNECs was strain-dependent. Highest adhesion was observed for strain C781. None of the C. accolens strains tested caused cell lysis. All strains were able to outcompete S. aureus for cell adhesion and caused a significant decrease of IL-6 production by HNECs co-exposed to S. aureus when compared to the control groups. All strains were sensitive or showed intermediate sensitivity to 10 different antibiotics. Whole Genome Sequence analysis showed C. accolens C781 and C787 did not possess antibiotic resistance genes whereas strain C779 harboured 5 genes associated with resistance to Aminoglycoside, Chloramphenicol and Erythromycin. In addition, no virulence genes were detected in any of the 3 strains. Moreover, the tested strains had no detrimental effect on worm survival and induced protection from S. aureus-mediated infection. Taken all together, C. accolens strains, C781 and C787 displayed probiotic potential and hold promise for use in clinical applications for combating dysbiosis in chronic rhinosinusitis.
Collapse
Affiliation(s)
- Martha Alemayehu Menberu
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Basil Hetzel Institute for Translational Health Research, Central Adelaide Local Health Network, Woodville, SA, Australia; Department of Medical Microbiology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Ethiopia
| | - Clare Cooksley
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Basil Hetzel Institute for Translational Health Research, Central Adelaide Local Health Network, Woodville, SA, Australia
| | - Mahnaz Ramezanpour
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Basil Hetzel Institute for Translational Health Research, Central Adelaide Local Health Network, Woodville, SA, Australia
| | - George Bouras
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Basil Hetzel Institute for Translational Health Research, Central Adelaide Local Health Network, Woodville, SA, Australia
| | - Peter-John Wormald
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Basil Hetzel Institute for Translational Health Research, Central Adelaide Local Health Network, Woodville, SA, Australia
| | - Alkis James Psaltis
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Basil Hetzel Institute for Translational Health Research, Central Adelaide Local Health Network, Woodville, SA, Australia
| | - Sarah Vreugde
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Basil Hetzel Institute for Translational Health Research, Central Adelaide Local Health Network, Woodville, SA, Australia.
| |
Collapse
|
8
|
Santos LM, Rodrigues DM, Kalil MA, Azevedo V, Meyer R, Umsza-Guez MA, Machado BA, Seyffert N, Portela RW. Activity of Ethanolic and Supercritical Propolis Extracts in Corynebacterium pseudotuberculosis and Its Associated Biofilm. Front Vet Sci 2021; 8:700030. [PMID: 34540932 PMCID: PMC8440938 DOI: 10.3389/fvets.2021.700030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 07/28/2021] [Indexed: 12/03/2022] Open
Abstract
Corynebacterium pseudotuberculosis is the etiological agent of caseous lymphadenitis in small ruminants, a chronic disease characterized by the development of granulomas in superficial and visceral lymph nodes as well as in several organs. An important characteristic of the infection with this bacterium is the formation of a biofilm and the absence of effective antibiotic therapy against the disease. From this scenario, the objective of this study was to evaluate the susceptibility of C. pseudotuberculosis to conventional antibiotics and to red, green, and brown propolis extracts obtained by the supercritical and ethanolic extraction methods as well as its activity in the bacterial biofilm. The results of the sensitivity test using antibiotics indicated a sensitivity of C. pseudotuberculosis strains to the antimicrobial agents. The ethanolic extract of green propolis and the supercritical red propolis extract showed the best antibacterial activities against planktonic C. pseudotuberculosis. A lower antimicrobial activity of the brown propolis extract was identified. Propolis extracts were effective in interfering with the formation of the C. pseudotuberculosis biofilm but had little activity on the consolidated biofilm. In conclusion, propolis extracts are more effective against C. pseudotuberculosis in the planktonic stage, being able to interfere with the formation of bacterial biofilm. However, the action of propolis extracts in a sessile and structured microbial biofilm is reduced.
Collapse
Affiliation(s)
- Laerte Marlon Santos
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil.,Instituto de Tecnologia em Saúde, CIMATEC-SENAI, Salvador, Brazil
| | - Daniela Méria Rodrigues
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Maurício Alcantara Kalil
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Vasco Azevedo
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Roberto Meyer
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | | | | | - Nubia Seyffert
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Ricardo Wagner Portela
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| |
Collapse
|
9
|
de Pinho RB, de Oliveira Silva MT, Bezerra FSB, Borsuk S. Vaccines for caseous lymphadenitis: up-to-date and forward-looking strategies. Appl Microbiol Biotechnol 2021; 105:2287-2296. [PMID: 33651132 PMCID: PMC7923401 DOI: 10.1007/s00253-021-11191-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 02/12/2021] [Accepted: 02/17/2021] [Indexed: 11/30/2022]
Abstract
Caseous lymphadenitis (CLA) is an infectious chronic disease responsible for economic losses in sheep and goat breeding worldwide. CLA has no effective treatment, evidencing the vaccination schedule as the best control strategy. Although some commercial vaccines have been available, none of them provides total protection, which is sometimes insufficient and does not reach the same efficiency when compared in sheep and goats. They also have questionable safety levels and side effects. In light of this, several experimental vaccines are in development in order to improve safety, reproducibility, and protective immune response against the etiologic agent of CLA, Corynebacterium pseudotuberculosis. In this review, we discussed aspects as antigen, adjuvant, routes of administration, protection level, and animal models used in CLA vaccine development, as well the challenges and future perspectives. KEY POINTS: Caseous lymphadenitis (CLA) does not have an appropriate commercial vaccine. Different experimental vaccines are in development aiming to protect against Corynebacterium pseudotuberculosis. An ideal vaccine for CLA is necessary for the disease control.
Collapse
Affiliation(s)
- Rodrigo Barros de Pinho
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Prédio 19-, Pelotas, RS, 96010-900, Brazil
| | - Mara Thais de Oliveira Silva
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Prédio 19-, Pelotas, RS, 96010-900, Brazil
| | - Francisco Silvestre Brilhante Bezerra
- Laboratório de Biotecnologia Aplicada a Doenças Infecto-Parasitárias, Centro de Ciências Biológicas e da Saúde, Universidade Federal Rural do Semiárido, Mossoró, Brazil
| | - Sibele Borsuk
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Campus Universitário s/n, Prédio 19-, Pelotas, RS, 96010-900, Brazil.
| |
Collapse
|
10
|
Barros de Pinho R, de Oliveira Silva MT, Brenner G, Dié Alves MS, Azevedo V, Dias Portela R, Borsuk S. A novel approach for an immunogen against Corynebacterium pseudotuberculosis infection: An Escherichia coli bacterin expressing phospholipase D. Microb Pathog 2021; 151:104746. [PMID: 33485993 DOI: 10.1016/j.micpath.2021.104746] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 11/17/2022]
Abstract
Corynebacterium pseudotuberculosis is the causative agent of caseous lymphadenitis (CLA) in small ruminants. There is still needed an immunoprophylaxis model, which induces a protective and sustained immune response against the bacteria. In this study, we evaluated a recombinant Escherichia coli bacterin expressing the recombinant phospholipase D (rPLD) protein, the most relevant virulence factor of C. pseudotuberculosis, as a potential vaccine formulation. E. coli BL21 (DE3) Star strain was used for rPLD protein expression and was then inactivated by formaldehyde. Four groups with 10 Balb/c mice each were immunized twice within a 21 days interval: G1-control - 0.9% saline solution; G2- E. coli bacterin/pAE (naked plasmid); G3- E. coli bacterin/pAE/pld; G4-purified recombinant rPLD. Subsequently, the animals were challenged with a C. pseudotuberculosis virulent strain and evaluated for 40 days. The highest survival rate was observed for G3 with 40% protection, followed by 30% in the purified rPLD group (G4). These two groups also showed considerable IgG production when compared with the control group (G1). Also, a higher significant expression of interferon-γ was observed for the experimental groups G2, G3, and G4 when compared with a control group (G1) (p < 0.05). These results represent that a recombinant bacterin can be seen as a promising approach for vaccinal antigens against CLA, being possible to be used in association of different vaccine strategies.
Collapse
Affiliation(s)
- Rodrigo Barros de Pinho
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS, 96010-900, Brazil
| | - Mara Thais de Oliveira Silva
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS, 96010-900, Brazil
| | - Gabriel Brenner
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS, 96010-900, Brazil
| | - Mirna Samara Dié Alves
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS, 96010-900, Brazil
| | - Vasco Azevedo
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, UFMG, Belo Horizonte, MG, 31270-901, Brazil
| | - Ricardo Dias Portela
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, UFBA, Salvador, BA, 40140-100, Brazil
| | - Sibele Borsuk
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS, 96010-900, Brazil.
| |
Collapse
|
11
|
Rebouças MF, Loureiro D, Barral TD, Seyffert N, Raynal JT, Sousa TJ, Figueiredo HCP, Azevedo V, Meyer R, Portela RW. Cell wall glycolipids from Corynebacterium pseudotuberculosis strains with different virulences differ in terms of composition and immune recognition. Braz J Microbiol 2020; 51:2101-2110. [PMID: 32712830 PMCID: PMC7688822 DOI: 10.1007/s42770-020-00343-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 07/20/2020] [Indexed: 11/26/2022] Open
Abstract
Caseous lymphadenitis (CLA) is an infectious disease caused by Corynebacterium pseudotuberculosis in small ruminants and is characterized by the development of granulomas in the lymph nodes, spleen, liver, and lungs. Although little is known about the host-pathogen relationship of this bacterium, it was previously reported that the pathogen's lipids are important for its taxonomic classification and survival inside macrophages. However, there are no studies regarding the composition of these molecules. In this study, cell wall glycolipids from two C. pseudotuberculosis strains presenting different virulence profiles were purified and its composition was characterized. A difference was observed between the electrophoretic and chromatogram profiles for cell wall components from the two strains, mainly among molecules with low molecular weights. IgM from sheep with acute CLA recognized antigens with an estimated molecular weight of 11 kDa of the low-pathogenicity strain, while low-molecular weight antigens from the high-pathogenicity strain presented a lower recognition by these antibodies. Mass spectrometry analysis showed that the cell wall of the high-pathogenicity strain contained glycolipids with high amounts of unsaturated fatty acids and glycerophosphoinositols, which may contribute to the capacity of this strain to cause severe disease. In conclusion, it is indicated that cell wall non-protein antigens can play a key role in C. pseudotuberculosis virulence.
Collapse
Affiliation(s)
- Miriam Flores Rebouças
- Laboratory of Immunology and Molecular Biology, Health Sciences Institute, Federal University of Bahia, Salvador, Bahia, 40110-100, Brazil
| | - Dan Loureiro
- Laboratory of Immunology and Molecular Biology, Health Sciences Institute, Federal University of Bahia, Salvador, Bahia, 40110-100, Brazil
| | - Thiago Doria Barral
- Laboratory of Immunology and Molecular Biology, Health Sciences Institute, Federal University of Bahia, Salvador, Bahia, 40110-100, Brazil
| | - Nubia Seyffert
- Post-graduation Program in Microbiology, Institute of Biology, Federal University of Bahia, Salvador, Bahia, 40170-115, Brazil
| | - José Tadeu Raynal
- Laboratory of Immunology and Molecular Biology, Health Sciences Institute, Federal University of Bahia, Salvador, Bahia, 40110-100, Brazil
| | - Thiago Jesus Sousa
- Laboratory of Cellular and Molecular Genetics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Henrique Cesar Pereira Figueiredo
- National Reference Laboratory for Aquatic Animal Diseases, Ministry of Fisheries and Aquaculture, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Vasco Azevedo
- Laboratory of Cellular and Molecular Genetics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Roberto Meyer
- Laboratory of Immunology and Molecular Biology, Health Sciences Institute, Federal University of Bahia, Salvador, Bahia, 40110-100, Brazil
| | - Ricardo Wagner Portela
- Laboratory of Immunology and Molecular Biology, Health Sciences Institute, Federal University of Bahia, Salvador, Bahia, 40110-100, Brazil.
| |
Collapse
|
12
|
NanH and PknG putative virulence factors as a recombinant subunit immunogen against Corynebacterium pseudotuberculosis infection in mice. Vaccine 2020; 38:8099-8106. [DOI: 10.1016/j.vaccine.2020.11.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 09/15/2020] [Accepted: 11/03/2020] [Indexed: 12/31/2022]
|
13
|
Santos LM, Stanisic D, Menezes UJ, Mendonça MA, Barral TD, Seyffert N, Azevedo V, Durán N, Meyer R, Tasic L, Portela RW. Biogenic Silver Nanoparticles as a Post-surgical Treatment for Corynebacterium pseudotuberculosis Infection in Small Ruminants. Front Microbiol 2019; 10:824. [PMID: 31068912 PMCID: PMC6491793 DOI: 10.3389/fmicb.2019.00824] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 04/01/2019] [Indexed: 12/16/2022] Open
Abstract
Caseous lymphadenitis (CL) is an infectious and zoonotic disease characterized by the development of granulomas in the lymph nodes and internal organs of small ruminants. The etiological agent of this disease is Corynebacterium pseudotuberculosis, a Gram-positive and facultative intracellular bacterium. The conventional treatment for CL consists of drainage and chemical cauterization of the lesions using a 10% iodine solution. However, this type of treatment is not effective, due to iodine's cytotoxic profile and low antibacterial activity. Currently, silver nanoparticles (AgNPs) can be seen as an alternative treatment for CL due to their antimicrobial activity and wound healing effects. Therefore, the present study aimed to evaluate AgNPs as a post-surgical treatment for CL. Twenty-nine goats and sheep with clinical signs of CL were selected. Surgical intervention was performed to excise the caseous lesions. To treat the lesions, an ointment formulation based on AgNP mixed with natural waxes and oils was used in the experimental group, and the conventional treatment with 10% iodine was used in the control group. Bacteria were isolated from the excised caseous material. The animals were observed for 8 weeks after the surgical treatment, and blood samples were taken weekly. The surgical wounds of sheep treated with AgNP healed faster, and the surgical wound area was smaller during the observation period; the latter effect was also observed in goats. AgNP-treated animals also had less purulent discharge and less moisture in the surgical wounds. The AgNP-treated animals had lower leukocyte counts and lower titers of anti-C. pseudotuberculosis antibodies. There was no statistically significant difference between the groups with regard to the hemogram results. The results of the susceptibility testing of C. pseudotuberculosis strains (T1, 1002, FRC41, and VD57 strains) and clinical isolates to AgNPs showed growth inhibition, even at low concentrations. It can be concluded that post-surgical treatment of CL using the AgNP-based ointment may be a promising tool in the control of CL, through faster healing, decreased wound contamination, and no apparent toxic effects.
Collapse
Affiliation(s)
- Laerte Marlon Santos
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Danijela Stanisic
- Laboratório de Química Biológica, Departamento de Química Orgânica, Instituto de Química, Universidade Estadual de Campinas, Campinas, Brazil
| | - Ulisses José Menezes
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Marcos Antônio Mendonça
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Thiago Doria Barral
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Núbia Seyffert
- Programa de Pós-Graduação em Microbiologia, Instituto de Biologia, Universidade Federal da Bahia, Salvador, Brazil
| | - Vasco Azevedo
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Nelson Durán
- Laboratório de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, Brazil
| | - Roberto Meyer
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Ljubica Tasic
- Laboratório de Química Biológica, Departamento de Química Orgânica, Instituto de Química, Universidade Estadual de Campinas, Campinas, Brazil
| | - Ricardo Wagner Portela
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| |
Collapse
|
14
|
Parise D, Parise MTD, Viana MVC, Muñoz-Bucio AV, Cortés-Pérez YA, Arellano-Reynoso B, Díaz-Aparicio E, Dorella FA, Pereira FL, Carvalho AF, Figueiredo HCP, Ghosh P, Barh D, Gomide ACP, Azevedo VAC. First genome sequencing and comparative analyses of Corynebacterium pseudotuberculosis strains from Mexico. Stand Genomic Sci 2018; 13:21. [PMID: 30338024 PMCID: PMC6180578 DOI: 10.1186/s40793-018-0325-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 09/24/2018] [Indexed: 12/20/2022] Open
Abstract
Corynebacterium pseudotuberculosis is a pathogenic bacterium which has been rapidly spreading all over the world, causing economic losses in the agricultural sector and sporadically infecting humans. Six C. pseudotuberculosis strains were isolated from goats, sheep, and horses with distinct abscess locations. For the first time, Mexican genomes of this bacterium were sequenced and studied in silico. All strains were sequenced using Ion Personal Genome Machine sequencer, assembled using Newbler and SPAdes software. The automatic genome annotation was done using the software RAST and in-house scripts for transference, followed by manual curation using Artemis software and BLAST against NCBI and UniProt databases. The six genomes are publicly available in NCBI database. The analysis of nucleotide sequence similarity and the generated phylogenetic tree led to the observation that the Mexican strains are more similar between strains from the same host, but the genetic structure is probably more influenced by transportation of animals between farms than host preference. Also, a putative drug target was predicted and in silico analysis of 46 strains showed two gene clusters capable of differentiating the biovars equi and ovis: Restriction Modification system and CRISPR-Cas cluster.
Collapse
Affiliation(s)
- Doglas Parise
- Laboratory of Cellular and Molecular Genetics, Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Mariana T D Parise
- Laboratory of Cellular and Molecular Genetics, Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Marcus V C Viana
- Laboratory of Cellular and Molecular Genetics, Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Adrian V Muñoz-Bucio
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine and Zootechnics, National Autonomous University of Mexico, Mexico City, Mexico
| | - Yazmin A Cortés-Pérez
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine and Zootechnics, National Autonomous University of Mexico, Mexico City, Mexico
| | - Beatriz Arellano-Reynoso
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine and Zootechnics, National Autonomous University of Mexico, Mexico City, Mexico
| | - Efrén Díaz-Aparicio
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine and Zootechnics, National Autonomous University of Mexico, Mexico City, Mexico
| | - Fernanda A Dorella
- Aquacen - National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Felipe L Pereira
- Aquacen - National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Alex F Carvalho
- Aquacen - National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Henrique C P Figueiredo
- Aquacen - National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Preetam Ghosh
- Department of Computer Science, Virginia Commonwealth University, Richmond, VA-23284 USA
| | - Debmalya Barh
- Laboratory of Cellular and Molecular Genetics, Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
- Centre for Genomics and Applied Gene Technology, Institute of Integrative Omics and Applied Biotechnology (IIOAB), Nonakuri, Purba Medinipur, West Bengal 721172 India
- Division of Bioinformatics and Computational Genomics, NITTE University Center for Science Education and Research (NUCSER), NITTE (Deemed to be University), Deralakatte, Mangaluru, Karnataka India
| | - Anne C P Gomide
- Laboratory of Cellular and Molecular Genetics, Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Vasco A C Azevedo
- Laboratory of Cellular and Molecular Genetics, Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| |
Collapse
|
15
|
Syame SM, Abuelnaga ASM, Ibrahim ES, Hakim AS. Evaluation of specific and non-specific immune response of four vaccines for caseous lymphadenitis in sheep challenged. Vet World 2018; 11:1272-1276. [PMID: 30410233 PMCID: PMC6200571 DOI: 10.14202/vetworld.2018.1272-1276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 07/31/2018] [Indexed: 11/16/2022] Open
Abstract
Background Caseous lymphadenitis (CLA) is a serious disease affects sheep and goat, caused by Corynebacterium pseudotuberculosis. Due to it is non-treatable disease, so the effective preventive vaccines are considered a significant way to combat the disease. All strains of C. pseudotuberculosis have several virulence factors that associated with their cell invasion, survival, and proliferation such as phospholipase D (PLD), outer lipid coat, and secreted proteases. Aim The present study was directed to perform a comparative innate and acquired immune response assessment of different four vaccine formulas to evoke protection against induced (CLA) challenge in sheep. Materials and Methods Negative ELISA (free of CLA) 15 local breed male (Balady) sheep were divided into five groups, each has received a different vaccine while the control has received saline buffer. The first vaccine composed of toxoid PLD alone the second composed of toxoid PLD with bacterin (formalinkilled bacteria), the third vaccine composed of toxoid PLD plus covaccine 8, while the fourth one composed of toxoid PLD plus locally produced polyvalent clostridial vaccine. The specific immune response was evaluated through lymphocyte proliferation assay using ELISA BrdU kit, while the non-specific response was estimated by superoxide anion production and lysozyme activity assays. Results The study revealed that PLD toxoid could evoke the highest specific immune response, showing a stimulation index (9.12%). On the other hand, combined toxoid ↱PLD with bacterin followed by PLD toxoid showed a significant increase in the non-specific innate immune response. Conclusion The present study indicated that the toxoid PLD alone vaccine was most efficient and provided innate and acquired immune response in animals against CLA.
Collapse
Affiliation(s)
- Sohier M Syame
- Department of Microbiology and Immunology, National Research Centre, Dokki, Cairo, Egypt
| | - Azza S M Abuelnaga
- Department of Microbiology and Immunology, National Research Centre, Dokki, Cairo, Egypt
| | - Eman S Ibrahim
- Department of Microbiology and Immunology, National Research Centre, Dokki, Cairo, Egypt
| | - Ashraf S Hakim
- Department of Microbiology and Immunology, National Research Centre, Dokki, Cairo, Egypt
| |
Collapse
|
16
|
Raynal JT, Bastos BL, Vilas-Boas PCB, Sousa TDJ, Costa-Silva M, de Sá MDCA, Portela RW, Moura-Costa LF, Azevedo V, Meyer R. Identification of membrane-associated proteins with pathogenic potential expressed by Corynebacterium pseudotuberculosis grown in animal serum. BMC Res Notes 2018; 11:73. [PMID: 29368627 PMCID: PMC5784612 DOI: 10.1186/s13104-018-3180-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 01/16/2018] [Indexed: 11/10/2022] Open
Abstract
Objective Previous works defining antigens that might be used as vaccine targets against Corynebacterium pseudotuberculosis, which is the causative agent of sheep and goat caseous lymphadenitis, have focused on secreted proteins produced in a chemically defined culture media. Considering that such antigens might not reflect the repertoire of proteins expressed during infection conditions, this experiment aimed to investigate the membrane-associated proteins with pathogenic potential expressed by C. pseudotuberculosis grown directly in animal serum. Results Its membrane-associated proteins have been extracted using an organic solvent enrichment methodology, followed by LC–MS/MS and bioinformatics analysis for protein identification and classification. The results revealed 22 membrane-associated proteins characterized as potentially pathogenic. An interaction network analysis indicated that the four potentially pathogenic proteins ciuA, fagA, OppA4 and OppCD were biologically connected within two distinct network pathways, which were both associated with the ABC Transporters KEGG pathway. These results suggest that C. pseudotuberculosis pathogenesis might be associated with the transport and uptake of nutrients; other seven identified potentially pathogenic membrane proteins also suggest that pathogenesis might involve events of bacterial resistance and adhesion. The proteins herein reported potentially reflect part of the protein repertoire expressed during real infection conditions and might be tested as vaccine antigens. Electronic supplementary material The online version of this article (10.1186/s13104-018-3180-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- José Tadeu Raynal
- Laboratório de Imunologia e Biologia Molecular (LABIMUNO), Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia (UFBA), Av. Reitor Miguel Calmon, S/N, Vale do Canela, Salvador, BA, CEP 40140-100, Brazil
| | - Bruno Lopes Bastos
- Laboratório de Biotecnologia e Genética (LABIOGENE), Instituto Multidisciplinar em Saúde - Campus Anísio Teixeira (IMS/CAT), Universidade Federal da Bahia (UFBA), Rua Rio de Contas, Quadra 17, Nº 58, Bairro Candeias, Vitória da Conquista, BA, CEP 45029-094, Brazil.
| | - Priscilla Carolinne Bagano Vilas-Boas
- Laboratório de Imunologia e Biologia Molecular (LABIMUNO), Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia (UFBA), Av. Reitor Miguel Calmon, S/N, Vale do Canela, Salvador, BA, CEP 40140-100, Brazil
| | - Thiago de Jesus Sousa
- Laboratório de Imunologia e Biologia Molecular (LABIMUNO), Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia (UFBA), Av. Reitor Miguel Calmon, S/N, Vale do Canela, Salvador, BA, CEP 40140-100, Brazil
| | - Marcos Costa-Silva
- Departamento de Ciências da Vida, Universidade do Estado da Bahia (UNEB), Rua Silveira Martins, Bairro Cabula, Salvador, BA, CEP 41150-000, Brazil
| | - Maria da Conceição Aquino de Sá
- Laboratório de Imunologia e Biologia Molecular (LABIMUNO), Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia (UFBA), Av. Reitor Miguel Calmon, S/N, Vale do Canela, Salvador, BA, CEP 40140-100, Brazil
| | - Ricardo Wagner Portela
- Laboratório de Imunologia e Biologia Molecular (LABIMUNO), Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia (UFBA), Av. Reitor Miguel Calmon, S/N, Vale do Canela, Salvador, BA, CEP 40140-100, Brazil
| | - Lília Ferreira Moura-Costa
- Laboratório de Imunologia e Biologia Molecular (LABIMUNO), Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia (UFBA), Av. Reitor Miguel Calmon, S/N, Vale do Canela, Salvador, BA, CEP 40140-100, Brazil
| | - Vasco Azevedo
- Laboratório de Genética Molecular e Celular (LGMC), Departamento de Biologia Geral, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Avenida Antonio Carlos, 6627, Pampulha, Belo Horizonte, MG, Brazil
| | - Roberto Meyer
- Laboratório de Imunologia e Biologia Molecular (LABIMUNO), Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia (UFBA), Av. Reitor Miguel Calmon, S/N, Vale do Canela, Salvador, BA, CEP 40140-100, Brazil
| |
Collapse
|
17
|
Association of Corynebacterium pseudotuberculosis recombinant proteins rCP09720 or rCP01850 with rPLD as immunogens in caseous lymphadenitis immunoprophylaxis. Vaccine 2017; 36:74-83. [PMID: 29174312 DOI: 10.1016/j.vaccine.2017.11.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 09/26/2017] [Accepted: 11/13/2017] [Indexed: 01/29/2023]
Abstract
Caseous lymphadenitis (CLA) is a chronic disease responsible for significant economic losses in sheep and goat breeding worldwide. The treatment for this disease is not effective, and an intense vaccination schedule would be the best control strategy. In this study, we evaluated the associations of rCP09720 or rCP01850 proteins from Corynebacterium pseudotuberculosis with recombinant exotoxin phospholipase D (rPLD) as subunit vaccines in mice. Four experimental groups (10 animals each) were immunized with a sterile 0.9% saline solution (G1), rPLD (G2), rPLD + rCP09720 (G3), and rPLD + rCP01850 (G4). The mice received two doses of each vaccine at a 21-day interval and were challenged 21 days after the last immunization. The animals were evaluated daily for 40 days after the challenge, and mortality rate was recorded. The total IgG production level increased significantly in the experimental groups on day 42 after the first vaccination. Similarly, higher levels of specific IgG2a were observed in experimental groups G2, G3, and G4 compared to the IgG1 levels on day 42. G4 showed a significant (p < .05) humoral response against both antigens of the antigenic formulations. The cellular immune response induced by immunization was characterized by a significant (p < .05) production of interferon-γ compared to that in the control, while the concentrations of interleukin (IL)-4 and IL-12 were not significant in any group. A significant increase of tumor necrosis factor was observed only in G4. The survival rates after the challenge were 30% (rPLD), 40% (rPLD + rCP09720), and 50% (rPLD + rCP01850). Thus, the association of rCP01850 with rPLD resulted in the best protection against the challenge with C. pseudotuberculosis and induced a more intense type 1 T-helper cell immune response.
Collapse
|
18
|
Oliveira A, Oliveira LC, Aburjaile F, Benevides L, Tiwari S, Jamal SB, Silva A, Figueiredo HCP, Ghosh P, Portela RW, De Carvalho Azevedo VA, Wattam AR. Insight of Genus Corynebacterium: Ascertaining the Role of Pathogenic and Non-pathogenic Species. Front Microbiol 2017; 8:1937. [PMID: 29075239 PMCID: PMC5643470 DOI: 10.3389/fmicb.2017.01937] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/21/2017] [Indexed: 11/22/2022] Open
Abstract
This review gathers recent information about genomic and transcriptomic studies in the Corynebacterium genus, exploring, for example, prediction of pathogenicity islands and stress response in different pathogenic and non-pathogenic species. In addition, is described several phylogeny studies to Corynebacterium, exploring since the identification of species until biological speciation in one species belonging to the genus Corynebacterium. Important concepts associated with virulence highlighting the role of Pld protein and Tox gene. The adhesion, characteristic of virulence factor, was described using the sortase mechanism that is associated to anchorage to the cell wall. In addition, survival inside the host cell and some diseases, were too addressed for pathogenic corynebacteria, while important biochemical pathways and biotechnological applications retain the focus of this review for non-pathogenic corynebacteria. Concluding, this review broadly explores characteristics in genus Corynebacterium showing to have strong relevance inside the medical, veterinary, and biotechnology field.
Collapse
Affiliation(s)
- Alberto Oliveira
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Leticia C Oliveira
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Flavia Aburjaile
- Center of Genomics and System Biology, Federal University of Pará, Belém, Brazil
| | - Leandro Benevides
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Sandeep Tiwari
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Syed B Jamal
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Arthur Silva
- Center of Genomics and System Biology, Federal University of Pará, Belém, Brazil
| | - Henrique C P Figueiredo
- Aquacen, National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Preetam Ghosh
- Department of Computational Science, Virginia Commonwealth University, Richmond, VA, United States
| | - Ricardo W Portela
- Laboratory of Immunology and Molecular Bióloga, Health Sciences Institute, Federal University of Bahiaa, Salvador, Brazil
| | - Vasco A De Carvalho Azevedo
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Alice R Wattam
- Biocomplexity Institute of Virginia Tech, Virginia Tech, Blacksburg, VA, United States
| |
Collapse
|
19
|
Brum AA, Rezende ADFS, Brilhante FS, Collares T, Begnine K, Seixas FK, Collares TV, Dellagostin OA, Azevedo V, Santos A, Portela RW, Borsuk S. Recombinant esterase from Corynebacterium pseudotuberculosis in DNA and subunit recombinant vaccines partially protects mice against challenge. J Med Microbiol 2017; 66:635-642. [PMID: 28516859 DOI: 10.1099/jmm.0.000477] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
PURPOSE We tested the efficacy of the esterase encoded by cp1002_RS09720 from Corynebacteriumpseudotuberculosis in recombinant subunit and DNA caseous lymphadenitis (CLA) vaccines. This target was predicted as one of the best CLA vaccine candidates by mature epitope density analysis. METHODOLOGY Gene cp1002_RS09720 was cloned into two different vectors (pAE for subunit vaccine and pTARGET for DNA vaccine). Four groups of 15 mice each were immunized with the recombinant esterase rCP09720 associated with aluminium hydroxide adjuvant (G1), pTARGET/cp09720 DNA vaccine (G2), a naked pTARGET (G3) or PBS as a negative control (G4). Immunization occurred in two doses intercalated by a 21 day interval. Twenty-one days after the last dose administration, animals were challenged with a virulent C. pseudotuberculosis MIC-6 strain. RESULTS G1 showed high levels of IgG1 and IgG2a on days 21 and 42 post-immunization and a significant level of IFN-γ (P<0.05), suggesting a Th1 response. The protection levels obtained were 58.3 and 16.6 % for G1 and G2, respectively. CONCLUSION The subunit vaccine composed of the recombinant esterase rCP09720 and Al(OH)3 is a promising antigenic formulation for use against CLA.
Collapse
Affiliation(s)
- Alexandre Antunes Brum
- Laboratório de Biotecnologia Infecto-parasitária, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS 96010-900, Brazil
| | - Andrea de Fatima Silva Rezende
- Laboratório de Biotecnologia Infecto-parasitária, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS 96010-900, Brazil
| | - Francisco Silvestre Brilhante
- Laboratório de Biotecnologia Infecto-parasitária, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS 96010-900, Brazil
| | - Thais Collares
- Laboratório de Biotecnologia Infecto-parasitária, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS 96010-900, Brazil
| | - Karine Begnine
- Grupo de Pesquisa em Oncologia Celular e Molecular, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS 96010-900, Brazil
| | - Fabiana Kommling Seixas
- Grupo de Pesquisa em Oncologia Celular e Molecular, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS 96010-900, Brazil
| | - Tiago Veiras Collares
- Grupo de Pesquisa em Oncologia Celular e Molecular, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS 96010-900, Brazil
| | - Odir Antônio Dellagostin
- Laboratório de Biologia Molecular, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS 96010-900, Brazil
| | - Vasco Azevedo
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, UFMG, Belo Horizonte, MG 31270-901, Brazil
| | - Anderson Santos
- Faculdade de Computação, UFU, Uberlândia, MG 38400-902, Brazil
| | - Ricardo Wagner Portela
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, UFBA, Salvador, BA 40110-100, Brazil
| | - Sibele Borsuk
- Laboratório de Biotecnologia Infecto-parasitária, Centro de Desenvolvimento Tecnológico, Biotecnologia, UFPel, Pelotas, RS 96010-900, Brazil
| |
Collapse
|
20
|
Genomic analysis of four strains of Corynebacterium pseudotuberculosis bv. Equi isolated from horses showing distinct signs of infection. Stand Genomic Sci 2017; 12:16. [PMID: 28163825 PMCID: PMC5282893 DOI: 10.1186/s40793-017-0234-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 01/25/2017] [Indexed: 11/24/2022] Open
Abstract
The genomes of four strains (MB11, MB14, MB30, and MB66) of the species Corynebacterium pseudotuberculosis biovar equi were sequenced on the Ion Torrent PGM platform, completely assembled, and their gene content and structure were analyzed. The strains were isolated from horses with distinct signs of infection, including ulcerative lymphangitis, external abscesses on the chest, or internal abscesses on the liver, kidneys, and lungs. The average size of the genomes was 2.3 Mbp, with 2169 (Strain MB11) to 2235 (Strain MB14) predicted coding sequences (CDSs). An optical map of the MB11 strain generated using the KpnI restriction enzyme showed that the approach used to assemble the genome was satisfactory, producing good alignment between the sequence observed in vitro and that obtained in silico. In the resulting Neighbor-Joining dendrogram, the C. pseudotuberculosis strains sequenced in this study were clustered into a single clade supported by a high bootstrap value. The structural analysis showed that the genomes of the MB11 and MB14 strains were very similar, while the MB30 and MB66 strains had several inverted regions. The observed genomic characteristics were similar to those described for other strains of the same species, despite the number of inversions found. These genomes will serve as a basis for determining the relationship between the genotype of the pathogen and the type of infection that it causes.
Collapse
|
21
|
Complete Genome Sequence of the Attenuated Corynebacterium pseudotuberculosis Strain T1. GENOME ANNOUNCEMENTS 2016; 4:4/5/e00947-16. [PMID: 27609922 PMCID: PMC5017227 DOI: 10.1128/genomea.00947-16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We present here the genome sequence of the attenuated Corynebacterium pseudotuberculosis strain T1. The sequencing was performed with an Ion Torrent Personal Genome Machine platform. The genome is a circular chromosome of 2,337,201 bp, with a G+C content of 52.85% and a total of 2,125 coding sequences (CDSs), 12 rRNAs, 49 tRNAs, and 24 pseudogenes.
Collapse
|
22
|
Vale VLC, Silva MDC, de Souza AP, Trindade SC, de Moura-Costa LF, Dos Santos-Lima EKN, Nascimento ILDO, Cardoso HSP, Marques EDJ, Paule BJA, Nascimento RJM. Humoral and cellular immune responses in mice against secreted and somatic antigens from a Corynebacterium pseudotuberculosis attenuated strain: Immune response against a C. pseudotuberculosis strain. BMC Vet Res 2016; 12:195. [PMID: 27608632 PMCID: PMC5017044 DOI: 10.1186/s12917-016-0811-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 08/30/2016] [Indexed: 11/10/2022] Open
Abstract
Background Corynebacterium pseudotuberculosis is the etiologic agent of caseous lymphadenitis (CL), a chronic disease that affects goats and sheep. CL is characterized by the formation of granulomas in lymph nodes and other organs, such as the lungs and liver. Current knowledge of CL pathogenesis indicates that the induction of humoral and cellular immune responses are fundamental to disease control. The aim of this study was to evaluate the humoral and cellular immune responses in BALB/c mice inoculated with a C. pseudotuberculosis strain isolated in the state of Bahia, Brazil. Results The lymphocyte proliferation and in vitro production of IFN-γ, IL-4, IL-10, IL-12 and nitric oxide by spleen cells stimulated with secreted and somatic antigens from the studied strain were evaluated. IgG subclasses were also analyzed. Results showed a significant increase of Th1-profile cytokines after 60 days post-inoculation, as well as an important humoral response, represented by high levels of IgG2a and IgG1 against C. pseudotuberculosis. Conclusion The T1 strain of C. pseudotuberculosis was shown to induce humoral and cellular immune responses in BALB/c mice, but, even at a dosage of 1x107 CFU, no signs of the disease were observed.
Collapse
Affiliation(s)
- Vera Lúcia Costa Vale
- Department of Exact and Earth Sciences, State University of Bahia, Campus II, Alagoinhas, BA, CEP 48110-100, Brazil. .,Immunology and Molecular Biology Laboratory, Health Sciences Institute, Federal University of Bahia, Av. Reitor Miguel Calmon s/n, Vale do Canela, Salvador, BA, CEP 40110-100, Brazil.
| | - Marcos da Costa Silva
- Department of Life Sciences, State University of Bahia, Rua Silveira Martins 2555, Cabula, Salvador, BA, CEP 41150-000, Brazil.,Immunology and Molecular Biology Laboratory, Health Sciences Institute, Federal University of Bahia, Av. Reitor Miguel Calmon s/n, Vale do Canela, Salvador, BA, CEP 40110-100, Brazil
| | - Andréia Pacheco de Souza
- Immunology and Molecular Biology Laboratory, Health Sciences Institute, Federal University of Bahia, Av. Reitor Miguel Calmon s/n, Vale do Canela, Salvador, BA, CEP 40110-100, Brazil
| | - Soraya Castro Trindade
- Department of Health, Feira de Santana State University, Avenida Transnordestina s/n, Novo Horizonte, Feira de Santana, BA, CEP 44036-900, Brazil.,Immunology and Molecular Biology Laboratory, Health Sciences Institute, Federal University of Bahia, Av. Reitor Miguel Calmon s/n, Vale do Canela, Salvador, BA, CEP 40110-100, Brazil
| | - Lília Ferreira de Moura-Costa
- Department of Biointeraction, Federal University of Bahia, Av. Reitor Miguel Calmon s/n, Vale do Canela, Salvador, BA, CEP 40110-100, Brazil
| | - Ellen Karla Nobre Dos Santos-Lima
- Immunology and Molecular Biology Laboratory, Health Sciences Institute, Federal University of Bahia, Av. Reitor Miguel Calmon s/n, Vale do Canela, Salvador, BA, CEP 40110-100, Brazil
| | - Ivana Lucia de Oliveira Nascimento
- Department of Biointeraction, Federal University of Bahia, Av. Reitor Miguel Calmon s/n, Vale do Canela, Salvador, BA, CEP 40110-100, Brazil.,Immunology and Molecular Biology Laboratory, Health Sciences Institute, Federal University of Bahia, Av. Reitor Miguel Calmon s/n, Vale do Canela, Salvador, BA, CEP 40110-100, Brazil
| | - Hugo Saba Pereira Cardoso
- Department of Exact and Earth Sciences, State University of Bahia, Campus II, Alagoinhas, BA, CEP 48110-100, Brazil
| | - Edson de Jesus Marques
- Department of Exact and Earth Sciences, State University of Bahia, Campus II, Alagoinhas, BA, CEP 48110-100, Brazil
| | - Bruno Jean Adrien Paule
- Immunology and Molecular Biology Laboratory, Health Sciences Institute, Federal University of Bahia, Av. Reitor Miguel Calmon s/n, Vale do Canela, Salvador, BA, CEP 40110-100, Brazil
| | - Roberto José Meyer Nascimento
- Department of Biointeraction, Federal University of Bahia, Av. Reitor Miguel Calmon s/n, Vale do Canela, Salvador, BA, CEP 40110-100, Brazil.,Immunology and Molecular Biology Laboratory, Health Sciences Institute, Federal University of Bahia, Av. Reitor Miguel Calmon s/n, Vale do Canela, Salvador, BA, CEP 40110-100, Brazil
| |
Collapse
|
23
|
Almeida S, Tiwari S, Mariano D, Souza F, Jamal SB, Coimbra N, Raittz RT, Dorella FA, Carvalho AFD, Pereira FL, Soares SDC, Leal CAG, Barh D, Ghosh P, Figueiredo H, Moura-Costa LF, Portela RW, Meyer R, Silva A, Azevedo V. The genome anatomy of Corynebacterium pseudotuberculosis VD57 a highly virulent strain causing Caseous lymphadenitis. Stand Genomic Sci 2016; 11:29. [PMID: 27066196 PMCID: PMC4826502 DOI: 10.1186/s40793-016-0149-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 03/30/2016] [Indexed: 11/29/2022] Open
Abstract
Corynebacterium pseudotuberculosis strain VD57 (Cp_VD57), a highly virulent, nonmotile, non-sporulating, and a mesophilic bacterium, was isolated from a goat’s granulomatous lesion in the municipality of Juazeiro, Bahia State, Brazil. Here, we describe a set of features of the strain, together with the details of its complete genome sequence and annotation. The genome comprises of a 2.5 Mbp long, single circular genome with 2,101 protein-coding genes, 12 rRNA, 49 tRNA and 47 pseudogenes and a G + C content of 52.85 %. Genetic variation was detected in Cp_VD57 using C. pseudotuberculosis strain 1002 as reference, wherein small genomic insertions and deletions were identified. The comparative analysis of the genome sequence provides means to better understand the host pathogen interactions of this strain and can also help us to understand the molecular and genetic basis of virulence of this bacterium.
Collapse
Affiliation(s)
- Sintia Almeida
- Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Sandeep Tiwari
- Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Diego Mariano
- Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Flávia Souza
- Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Syed Babar Jamal
- Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Nilson Coimbra
- Laboratory of Bioinformatics, Professional and Technological Education Sector, Federal University of Paraná, Curitiba, PR Brazil
| | - Roberto Tadeu Raittz
- Laboratory of Bioinformatics, Professional and Technological Education Sector, Federal University of Paraná, Curitiba, PR Brazil
| | - Fernanda Alves Dorella
- Aquacen - National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Alex Fiorine de Carvalho
- Aquacen - National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Felipe Luiz Pereira
- Aquacen - National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Siomar de Castro Soares
- Aquacen - National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Carlos Augusto Gomes Leal
- Aquacen - National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Debmalya Barh
- Centre for Genomics and Applied Gene Technology, Institute of Integrative Omics and Applied Biotechnology (IIOAB), Nonakuri, Purba Medinipur, West Bengal India
| | - Preetam Ghosh
- Department of Computer Science, Virginia Commonwealth University, Richmond, VA USA
| | - Henrique Figueiredo
- Aquacen - National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | | | | | - Roberto Meyer
- Institute of Health Sciences, Federal University of Bahia, Salvador, BA Brazil
| | - Artur Silva
- Institute of Biologic Sciences, Federal University of Para, Belem, PA Brazil
| | - Vasco Azevedo
- Institute of Biologic Sciences, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| |
Collapse
|
24
|
Silva JW, Droppa-Almeida D, Borsuk S, Azevedo V, Portela RW, Miyoshi A, Rocha FS, Dorella FA, Vivas WL, Padilha FF, Hernández-Macedo ML, Lima-Verde IB. Corynebacterium pseudotuberculosis cp09 mutant and cp40 recombinant protein partially protect mice against caseous lymphadenitis. BMC Vet Res 2014; 10:965. [PMID: 25527190 PMCID: PMC4297461 DOI: 10.1186/s12917-014-0304-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 12/11/2014] [Indexed: 11/24/2022] Open
Abstract
Background Caseous lymphadenitis (CLA) is an infectious disease that affects small ruminants and is caused by Corynebacterium pseudotuberculosis. This disease is responsible for high economic losses due to condemnation and trim of infected carcasses, decreased leather and wool yield, loss of sales of breeding stock and deaths from internal involvement. Treatment is costly and ineffective; the most cost-effective strategy is timely immunisation. Various vaccine strategies have been tested, and recombinant vaccines are a promising alternative. Thus, in this study, different vaccine formulations using a recombinant protein (rCP40) and the CP09 live recombinant strain were evaluated. Five groups of 10 mice each were immunised with saline (G1), rCP40 (G2), CP09 (G3), a combination of CP09 and rCP40 (G4) and a heterologous prime-boost strategy (G5). Mice received two immunisations within 15 days. On day 30 after primary immunisation, all groups were challenged with a C. pseudotuberculosis virulent strain. Mice were monitored and mortality was recorded for 30 days after challenge. Results The G2, G4 and G5 groups showed high levels of IgG1 and IgG2a; G2 presented significant IgG2a production after virulent challenge in the absence of IgG1 and IgG3 induction. Thirty days after challenge, the mice survival rates were 20 (G1), 90 (G2), 50 (G3), 70 (G4) and 60% (G5). Conclusions rCP40 is a promising target in the development of vaccines against caseous lymphadenitis.
Collapse
Affiliation(s)
- Judson W Silva
- Technology and Research Institute, Tiradentes University, Av. Murilo Dantas, 300, Aracaju, Sergipe, 49032-490, Brazil.
| | - Daniela Droppa-Almeida
- Technology and Research Institute, Tiradentes University, Av. Murilo Dantas, 300, Aracaju, Sergipe, 49032-490, Brazil.
| | - Sibele Borsuk
- Biotechnology Unit/Center for Technology Development, Federal University of Pelotas, Capão do Leão, Rio Grande do Sul, 96010-900, Brazil.
| | - Vasco Azevedo
- Biological Sciences Institute, General Biology Department, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Minas Gerais, Belo Horizonte, Brazil.
| | - Ricardo W Portela
- Health Sciences Institute, Federal University of Bahia, Avenida Reitor Miguel Calmon s/n, Salvador, BA, 40110-100, Brazil.
| | - Anderson Miyoshi
- Biological Sciences Institute, General Biology Department, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Minas Gerais, Belo Horizonte, Brazil.
| | - Flávia S Rocha
- Biological Sciences Institute, General Biology Department, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Minas Gerais, Belo Horizonte, Brazil.
| | - Fernanda A Dorella
- Biological Sciences Institute, General Biology Department, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Minas Gerais, Belo Horizonte, Brazil.
| | - Wanessa L Vivas
- Technology and Research Institute, Tiradentes University, Av. Murilo Dantas, 300, Aracaju, Sergipe, 49032-490, Brazil.
| | - Francine F Padilha
- Technology and Research Institute, Tiradentes University, Av. Murilo Dantas, 300, Aracaju, Sergipe, 49032-490, Brazil.
| | - Maria L Hernández-Macedo
- Technology and Research Institute, Tiradentes University, Av. Murilo Dantas, 300, Aracaju, Sergipe, 49032-490, Brazil.
| | - Isabel B Lima-Verde
- Technology and Research Institute, Tiradentes University, Av. Murilo Dantas, 300, Aracaju, Sergipe, 49032-490, Brazil.
| |
Collapse
|
25
|
Rees MA, Kleifeld O, Crellin PK, Ho B, Stinear TP, Smith AI, Coppel RL. Proteomic Characterization of a Natural Host–Pathogen Interaction: Repertoire of in Vivo Expressed Bacterial and Host Surface-Associated Proteins. J Proteome Res 2014; 14:120-32. [DOI: 10.1021/pr5010086] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | - Timothy P. Stinear
- Department
of Microbiology and Immunology, University of Melbourne, Parkville, Victoria 3010, Australia
| | | | | |
Collapse
|
26
|
Seyffert N, Silva RF, Jardin J, Silva WM, Castro TLDP, Tartaglia NR, Santana KTDO, Portela RW, Silva A, Miyoshi A, Le Loir Y, Azevedo V. Serological proteome analysis of Corynebacterium pseudotuberculosis isolated from different hosts reveals novel candidates for prophylactics to control caseous lymphadenitis. Vet Microbiol 2014; 174:255-60. [PMID: 25236983 DOI: 10.1016/j.vetmic.2014.08.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Revised: 07/19/2014] [Accepted: 08/25/2014] [Indexed: 10/24/2022]
Abstract
Caseous lymphadenitis (CLA) is a highly prevalent disease in goats and sheep worldwide, which is caused by Corynebacterium pseudotuberculosis. Although several prophylactic methods against CLA have been proposed previously, the identification of new C. pseudotuberculosis proteins that are really produced during the infectious process is still needed to improve efficiency and accuracy in vaccines and diagnostics. In this study, we used optimized conditions for serological proteome analysis (SERPA) in order to identify new immune-reactive proteins in C. pseudotuberculosis culture supernatants of two strains, 1002 and C231, isolated from goats and sheep, respectively. Using a sheep and goat serum pool, 13 novel immune-reactive exoproteins common to the two strains were identified. Four of these proteins present known functions and were already described as immune-reactive proteins in other microorganisms, whereas the other nine are of unknown function and show low similarity with proteins from other bacterial species. These data reveal promising targets for immunoprophylactic methods against CLA.
Collapse
Affiliation(s)
- Nubia Seyffert
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Institut National de la Recherche Agronomique, UMR1253, Science et Technologie du Lait et de l'Œuf, F-35042 Rennes, France; AGROCAMPUS OUEST, UMR1253, Science et Technologie du Lait et de l'Œuf, F-35042 Rennes, France
| | - Renata Faria Silva
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Julien Jardin
- Institut National de la Recherche Agronomique, UMR1253, Science et Technologie du Lait et de l'Œuf, F-35042 Rennes, France; AGROCAMPUS OUEST, UMR1253, Science et Technologie du Lait et de l'Œuf, F-35042 Rennes, France
| | - Wanderson Marques Silva
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Institut National de la Recherche Agronomique, UMR1253, Science et Technologie du Lait et de l'Œuf, F-35042 Rennes, France; AGROCAMPUS OUEST, UMR1253, Science et Technologie du Lait et de l'Œuf, F-35042 Rennes, France
| | | | - Natayme Rocha Tartaglia
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Artur Silva
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
| | - Anderson Miyoshi
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Yves Le Loir
- Institut National de la Recherche Agronomique, UMR1253, Science et Technologie du Lait et de l'Œuf, F-35042 Rennes, France; AGROCAMPUS OUEST, UMR1253, Science et Technologie du Lait et de l'Œuf, F-35042 Rennes, France
| | - Vasco Azevedo
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| |
Collapse
|
27
|
de Souza AP, Vale VLC, Silva MDC, Araújo IBDO, Trindade SC, de Moura-Costa LF, Rodrigues GC, Sales TS, dos Santos HA, de Carvalho-Filho PC, de Oliveira-Neto MG, Schaer RE, Meyer R. MAPK involvement in cytokine production in response to Corynebacterium pseudotuberculosis infection. BMC Microbiol 2014; 14:230. [PMID: 25179342 PMCID: PMC4167526 DOI: 10.1186/s12866-014-0230-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 08/19/2014] [Indexed: 01/29/2023] Open
Abstract
Background Caseous lymphadenitis (CL) is a contagious infectious disease of small ruminants caused by Corynebacterium pseudotuberculosis. Is characterized by the formation of abscesses in the lymph nodes and intestines of infected animals, induced by inflammatory cytokines. The production of cytokines, such as IL-10, TNF-α, IL-4 and IFN-γ, is regulated by mitogen-activated protein kinase (MAPK) pathway activation. The present study investigated the involvement of MAPK pathways (MAPK p38, ERK 1 and ERK 2) with respect to the production of cytokines induced by antigens secreted by C. pseudotuberculosis over a 60-day course of infection. CBA mice (n = 25) were divided into three groups and infected with 102 colony forming units (CFU) of attenuated strain T1, 102 CFU of virulent strain VD57 or sterile saline solution and euthanized after 30 or 60 days. Murine splenocytes were treated with specific inhibitors (MAPK p38 inhibitor, ERK 1/2 inhibitor or ERK 2 inhibitor) and cultured with secreted antigens obtained from pathogenic bacteria (SeT1 or SeVD57). Results The MAPK pathways evaluated were observed to be involved in the production of IL-10, under stimulation by secreted antigens, while the MAPK p38 and ERK 1 pathways were shown to be primarily involved in TNF-α production. By contrast, no involvement of the MAPK p38 and ERK 1 and 2 pathways was observed in IFN-γ production, while the ERK 2 pathway demonstrated involvement in IL-4 production only in the mouse splenocytes infected with VD57 under stimulation by SeT1. Conclusion The authors hypothesize that MAPK p38 and ERK 1 pathways with respect to TNF-α production, as well as the MAPK p38 and ERK 1 and 2 pathways in relation to IL-10 production under infection by C. pseudotuberculosis are important regulators of cellular response. Additionally, the lack of the MAPK p38 and ERK 1/2 pathways in IFN-γ production in infected CBA murine cells stimulated with the two secreted/excreted antigens, in IL-4 production showing involvement only via the ERK 2 pathway under stimulation by SeT1 antigen during 60-day infection period with the virulent strain, suggests that these pathways regulated the production of pro-inflammatory and regulatory cytokines in the splenic cells of CBA mice.
Collapse
Affiliation(s)
- Andréia Pacheco de Souza
- Biointeraction Department - Immunology and Molecular Biology Laboratory - Health Sciences Institute (ICS), Federal University of Bahia (UFBA), Av, Reitor Miguel Calmon, s/n; Vale do Canela, Salvador CEP 40040-040, Bahia, Brazil.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Bastos BL, Loureiro D, Raynal JT, Guedes MT, Vale VLC, Moura-Costa LF, Guimarães JE, Azevedo V, Portela RW, Meyer R. Association between haptoglobin and IgM levels and the clinical progression of caseous lymphadenitis in sheep. BMC Vet Res 2013; 9:254. [PMID: 24330714 PMCID: PMC3866939 DOI: 10.1186/1746-6148-9-254] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Accepted: 12/10/2013] [Indexed: 12/06/2023] Open
Abstract
Background Sheep caseous lymphadenitis (CLA), caused by Corynebacterium pseudotuberculosis (Cp), is associated with direct economic losses and presents significant zoonotic potential. Despite the importance of the disease, a satisfactory vaccine model has not been developed. Thus, this study aimed to investigate the association between haptoglobin (Hp) and IgM levels and the clinical progression of CLA in primarily infected sheep and in sheep immunized with Cp- secreted antigens adjuvanted with Quillaja saponaria saponins. These animals were kept with CLA-positive sheep to simulate natural exposure that occurs in field conditions. During the experiment, the Hp and IgM levels were monitored for 21 days, and the development of internal CLA lesions was investigated through necropsies on day182 post-immunization. Results Primarily infected sheep in Group 2 (inoculated with 2x105 Cp virulent strain) had higher Hp values between the first and ninth days post inoculation (PI) than sheep in Group 1 (control; P < 0.05). Immunized animals in Group 3 had significantly higher Hp values between the third and seventh days PI, compared with the control group (P < 0.01). Binary logistic regression (BLR) analysis of primarily infected sheep indicated an association between Hp concentration and CLA clinical progression: animals with high Hp values had 99.9% less risk of having CLA abscesses than animals with low Hp levels (Odds ratio = 0.001, P < 0.05). Both experimental groups had significantly higher IgM titers than the control group around the ninth and eleventh days PI (P < 0.05). The BLR analysis for immunized sheep indicated an association between IgM levels and clinical progression: sheep with high IgM titers had 100.0% less risk of having CLA abscesses than animals with low IgM levels (Odds ratio = 0.000, P < 0.05). Conclusions Resistance to C. pseudotuberculosis infection is supported by the early acute phase response, in which up-regulation of Hp and IgM were predictive of a lower risk of CLA lesion development. Because the immunogen used in this study induced a high production of both Hp and IgM, Q. saponaria saponin should be considered a promising candidate in vaccine formulations against sheep CLA.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Roberto Meyer
- Laboratório de Imunologia e Biologia Molecular, Departamento de Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Av, Reitor Miguel Calmon, S/N - Vale do Canela, Salvador, BA CEP 40140-100, Brazil.
| |
Collapse
|
29
|
Rebouças MF, Loureiro D, Bastos BL, Moura-Costa LF, Hanna SA, Azevedo V, Meyer R, Portela RW. Development of an indirect ELISA to detect Corynebacterium pseudotuberculosis specific antibodies in sheep employing T1 strain culture supernatant as antigen. PESQUISA VETERINARIA BRASILEIRA 2013. [DOI: 10.1590/s0100-736x2013001100002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Corynebacterium pseudotuberculosis is the etiologic agent of caseous lymphadenitis (CLA), a chronic disease that affects goats and sheep, characterized by granuloma formation in subcutaneous and internal lymph nodes. CLA causes significant economic losses to commercial goat herds. In this study, we aimed to test secreted antigens secreted from T1 strain bacteria grown in brain heart infusion (BHI) broth in an indirect ELISA system to determine the presence of specific immunoglobulins against C. pseudotuberculosis. We analyzed the BHI antigen electrophoretic profile and the recognition pattern by infected sheep sera samples. The ELISA results were compared with multiplex PCR assay and IFN-gamma production. The ELISA was able to discriminate between negative and positive animals, with a sensitivity of 89% and a specificity of 99%, using microbiological isolation as gold standard. When this assay was compared with multiplex PCR and specific IFN-gamma quantification, six discrepant results were found among thirty-two samples. We concluded that the ELISA using antigens secreted from C. pseudotuberculosis T1 strain growth in BHI broth culture can be used for the serodiagnosis of CLA in sheep.
Collapse
|
30
|
Costa MP, McCulloch JA, Almeida SS, Dorella FA, Fonseca CT, Oliveira DM, Teixeira MF, Laskowska E, Lipinska B, Meyer R, Portela RW, Oliveira SC, Miyoshi A, Azevedo V. Molecular characterization of the Corynebacterium pseudotuberculosis hsp60-hsp10 operon, and evaluation of the immune response and protective efficacy induced by hsp60 DNA vaccination in mice. BMC Res Notes 2011; 4:243. [PMID: 21774825 PMCID: PMC3158118 DOI: 10.1186/1756-0500-4-243] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Accepted: 07/20/2011] [Indexed: 01/12/2023] Open
Abstract
Background Heat shock proteins (HSPs) are important candidates for the development of vaccines because they are usually able to promote both humoral and cellular immune responses in mammals. We identified and characterized the hsp60-hsp10 bicistronic operon of the animal pathogen Corynebacterium pseudotuberculosis, a Gram-positive bacterium of the class Actinobacteria, which causes caseous lymphadenitis (CLA) in small ruminants. Findings To construct the DNA vaccine, the hsp60 gene of C. pseudotuberculosis was cloned in a mammalian expression vector. BALB/c mice were immunized by intramuscular injection with the recombinant plasmid (pVAX1/hsp60). Conclusion This vaccination induced significant anti-hsp60 IgG, IgG1 and IgG2a isotype production. However, immunization with this DNA vaccine did not confer protective immunity.
Collapse
Affiliation(s)
- Marcilia P Costa
- Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av, Antonio Carlos, 6627 - Pampulha, CP 486, CEP 31,270-901, Belo Horizonte- MG, Brazil.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Liu L, Shen L, Liu X, Yu Y, Li Y, Wang L, He C, Sun J, Li B. A safety study of a B-class CpG ODN in Sprague-Dawley rats. J Appl Toxicol 2011; 32:60-71. [PMID: 21538408 DOI: 10.1002/jat.1683] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2010] [Revised: 02/10/2011] [Accepted: 02/26/2011] [Indexed: 12/29/2022]
Abstract
Oligodeoxynucleotides containing CpG motifs (CpG ODNs) are potent immune activators and are being tested as anti-tumor, antimicrobial agents and as adjuvants in vaccines. Little has been reported, however, about the systematic and comprehensive safety evaluation on repeated CpG ODN administration. To investigate the safety profile of a newly developed CpG ODN, CpG 684, we conducted a 28-day repeated dose toxicity study in rats, at dose levels of 5, 20 and 150 µg CpG 684 per rat. No abnormalities in clinical observations, growth, urinalysis and bone marrow cell counts were found in CpG 684 treated rats. CpG 684 was proved biologically active, capable of up-regulating the expressions of CD40 and CD86 molecules. The monocyte numbers were increased at the dose levels of 20 and 150 µg per rat. The spleen weights were increased in female rats at the dose level of 150 µg per rat. Microscopically, 5, 20 and 150 µg per rat CpG 684 caused local inflammatory cell infiltration and hyperplasia of fibrous tissue at injection sites; the treatment of 5 and 150 µg per rat CpG 684 induced enhanced inflammatory reaction in inguinal lymphoid tissue, and the dose of 150 µg per rat induced cell hyperplasia in white pulp of spleen and white pulp expansion. CpG 684 at 150 µg per rat led to decreases in peripheral lymphocyte, serum globulin, glucose, alkaline phosphatase and K+ levels in female rats, and induced the decrease in serum albumin and total protein in rats of both sexes. The data from this study will provide an important reference for developing CpG 684 as an adjuvant for vaccines of human use.
Collapse
Affiliation(s)
- Li Liu
- Department of Chinese Herbal Pharmacology, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100102, China
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Rebouças MF, Portela RW, Lima DD, Loureiro D, Bastos BL, Moura-Costa LF, Vale VL, Miyoshi A, Azevedo V, Meyer R. Corynebacterium Pseudotuberculosis Secreted Antigen-Induced Specific Gamma-Interferon Production by Peripheral Blood Leukocytes: Potential Diagnostic Marker for Caseous Lymphadenitis in Sheep and Goats. J Vet Diagn Invest 2011; 23:213-20. [DOI: 10.1177/104063871102300204] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In the current study, the applicability of the quantification of gamma interferon (IFN-γ) levels for the detection of animals infected with Corynebacterium pseudotuberculosis and for determining caseous lymphadenitis (CLA) clinical status was evaluated. Peripheral blood leukocytes were collected from CLA nonendemic areas animals, from CLA seropositive animals without clinical signs of the disease, and from seropositive animals presenting CLA clinical signs. The leukocytes were stimulated with C. pseudotuberculosis—secreted antigens that were concentrated by the three-phase partitioning technique. An ovine IFN-γ enzyme-linked immunosorbent assay was used to quantify IFN-γ production. Goats and sheep with CLA had higher IFN-γ levels than uninfected seronegative animals. Leukocytes from sheep with CLA chronic abscesses produced higher IFN-γ levels when compared with seropositive sheep without CLA clinical signs, but this difference was not significant in goats. The sensitivity of the assay was 55.8% and 56%, whereas the specificity was 100% and 93%, for goats and sheep, respectively. In conclusion, IFN-γ is a potential marker for the determination of CLA infection status in small ruminants; however, further research is needed to improve assay sensitivity.
Collapse
Affiliation(s)
| | | | | | - Dan Loureiro
- Laboratories of Immunology and Molecular Biology
| | | | | | - Vera L. Vale
- Bio-Interaction Department, Health Sciences Institute, Federal University of Bahia, Vale do Canela, Salvador, Bahia, Brazil; the State University of Bahia, Alagoinhas, Bahia, Brazil
| | - Anderson Miyoshi
- and the Laboratory of Molecular and Cellular Genetics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Vasco Azevedo
- and the Laboratory of Molecular and Cellular Genetics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | |
Collapse
|
33
|
Dorella FA, Pacheco LG, Seyffert N, Portela RW, Meyer R, Miyoshi A, Azevedo V. Antigens of Corynebacterium pseudotuberculosis and prospects for vaccine development. Expert Rev Vaccines 2009; 8:205-13. [PMID: 19196200 DOI: 10.1586/14760584.8.2.205] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Corynebacterium pseudotuberculosis continues to cause considerable economic losses in ovine and caprine herds worldwide, causing caseous lymphadenitis. Nevertheless, the immunology of this disease is relatively unknown. Novel antigens may provide vaccines that are more effective and improve diagnostic methods for better control of this disease. The available commercial vaccines are not able to fully protect susceptible animals, cannot be used in all host species and are not licensed for use in many countries. Recent studies on the genomics of C. pseudotuberculosis and on its molecular determinants of virulence should bring us new alternatives for more effective vaccine formulations.
Collapse
Affiliation(s)
- Fernanda A Dorella
- Laboratório de Genética Celular e Molecular, Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, CP: 486 CEP: 31 270-901, Belo Horizonte - MG, Brazil.
| | | | | | | | | | | | | |
Collapse
|