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Nagalingam M, Basheer TJ, Balamurugan V, Shome R, Kumari SS, Reddy GBM, Shome BR, Rahman H, Roy P, Kingston JJ, Gandham RK. Comparative evaluation of the immunodominant proteins of Brucella abortus for the diagnosis of cattle brucellosis. Vet World 2021; 14:803-812. [PMID: 33935431 PMCID: PMC8076471 DOI: 10.14202/vetworld.2021.803-812] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 02/15/2021] [Indexed: 11/20/2022] Open
Abstract
Background and Aim: The present serodiagnosis of brucellosis in livestock is based on the whole cell or smooth lipopolysaccharide of the Brucella organism in which specificity is hampered by the cross-reactivity, especially with the antibodies against Yersinia enterocolitica O:9 organism. The problem can be addressed by screening for better immunodominant antigens. Hence, the present study was undertaken to screen protein antigens of Brucella abortus for their diagnostic potential in cattle brucellosis. Materials and Methods: Protein antigens of B. abortus (n=10) non-reactive to antibodies against Y. enterocolitica O:9 were selected, expressed in Escherichia coli, assessed the reactivity of expressed recombinant proteins by Western blot, standardized indirect-enzyme-linked immunosorbent assay (ELISA) for detecting Brucella antibodies in cattle serum, and comparative evaluation was done. Results: All the selected protein antigens were expressed and in the Western blot with Brucella antibodies positive cattle serum, six recombinant (Brucella protein 26 [BP26], Cu-Zn Superoxide dismutase [SodC], B. abortus I-1885, Serine protease, Bacterioferritin, and Brucella Lumazine Synthase [BLS]) proteins showed reaction whereas none of the proteins showed reactivity with Brucella negative cattle serum. ELISA has been done using known Brucella positive and negative cattle sera samples (n=113 each) in which the performance of recombinant proteins in diagnosing brucellosis was in the order of BP26 > BLS > SodC followed by rest of the proteins. BP26 based ELISA was found to be better with area under the curve as 0.953, and diagnostic sensitivity, diagnostic specificity, and Youden’s index of 90.27%, 95.58%, and 0.8584, respectively, with the excellent agreement (k=0.85). Conclusion: BP26 could be a potential diagnostic antigen among the immunodominant proteins of B. abortus in ruling out Y. enterocolitica O:9 infection while diagnosing brucellosis in cattle herds.
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Affiliation(s)
- Mohandoss Nagalingam
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, Karnataka, India
| | - Thaslim J Basheer
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, Karnataka, India
| | | | - Rajeswari Shome
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, Karnataka, India
| | - S Sowjanya Kumari
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, Karnataka, India
| | - G B Manjunatha Reddy
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, Karnataka, India
| | - Bibek Ranjan Shome
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, Karnataka, India
| | - Habibur Rahman
- International Livestock Research Institute, New Delhi, India
| | - Parimal Roy
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, Karnataka, India
| | | | - R K Gandham
- National Institute of Animal Biotechnology, Hyderabad, Telangana, India
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Wareth G, Pletz MW, Neubauer H, Murugaiyan J. Proteomics of Brucella: Technologies and Their Applications for Basic Research and Medical Microbiology. Microorganisms 2020; 8:microorganisms8050766. [PMID: 32443785 PMCID: PMC7285364 DOI: 10.3390/microorganisms8050766] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 12/26/2022] Open
Abstract
Brucellosis is a global zoonosis caused by Gram-negative, facultative intracellular bacteria of the genus Brucella (B.). Proteomics has been used to investigate a few B. melitensis and B. abortus strains, but data for other species and biovars are limited. Hence, a comprehensive analysis of proteomes will significantly contribute to understanding the enigmatic biology of brucellae. For direct identification and typing of Brucella, matrix-assisted laser desorption ionization - time of flight mass spectrometry (MALDI - TOF MS) has become a reliable tool for routine diagnosis due to its ease of handling, price and sensitivity highlighting the potential of proteome-based techniques. Proteome analysis will also help to overcome the historic but still notorious Brucella obstacles of infection medicine, the lack of safe and protective vaccines and sensitive serologic diagnostic tools by identifying the most efficient protein antigens. This perspective summarizes past and recent developments in Brucella proteomics with a focus on species identification and serodiagnosis. Future applications of proteomics in these fields are discussed.
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Affiliation(s)
- Gamal Wareth
- Friedrich-Loeffler-Institut, Institute of Bacterial Infections and Zoonoses, Naumburger Str. 96a, 07743 Jena, Germany;
- Institute for Infectious Diseases and Infection Control, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany;
- Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh 13736, Egypt
- Correspondence: ; Tel.: +49-364-1804-2296
| | - Mathias W. Pletz
- Institute for Infectious Diseases and Infection Control, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany;
| | - Heinrich Neubauer
- Friedrich-Loeffler-Institut, Institute of Bacterial Infections and Zoonoses, Naumburger Str. 96a, 07743 Jena, Germany;
| | - Jayaseelan Murugaiyan
- Institute of Animal Hygiene and Environmental Health, Centre for Infectious Medicine, Freie Universität Berlin, Robert-von-Ostertag-Str. 7-13, 14163 Berlin, Germany;
- Department of Biotechnology, SRM University AP, Neerukonda, Mangalagiri, Andhra Pradesh 522502, India
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Abstract
Brucella spp. are Gram negative intracellular bacteria responsible for brucellosis, a worldwide distributed zoonosis. A prominent aspect of the Brucella life cycle is its ability to invade, survive and multiply within host cells. Comprehensive approaches, such as proteomics, have aided in unravelling the molecular mechanisms underlying Brucella pathogenesis. Technological and methodological advancements such as increased instrument performance and multiplexed quantification have broadened the range of proteome studies, enabling new and improved analyses, providing deeper and more accurate proteome coverage. Indeed, proteomics has demonstrated its contribution to key research questions in Brucella biology, i.e., immunodominant proteins, host-cell interaction, stress response, antibiotic targets and resistance, protein secretion. Here, we review the proteomics of Brucella with a focus on more recent works and novel findings, ranging from reconfiguration of the intracellular bacterial proteome and studies on proteomic profiles of Brucella infected tissues, to the identification of Brucella extracellular proteins with putative roles in cell signaling and pathogenesis. In conclusion, proteomics has yielded copious new candidates and hypotheses that require future verification. It is expected that proteomics will continue to be an invaluable tool for Brucella and applications will further extend to the currently ill-explored aspects including, among others, protein processing and post-translational modification.
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Galassie AC, Goll JB, Samir P, Jensen TL, Hoek KL, Howard LM, Allos TM, Niu X, Gordy LE, Creech CB, Hill H, Joyce S, Edwards KM, Link AJ. Proteomics show antigen presentation processes in human immune cells after AS03-H5N1 vaccination. Proteomics 2017; 17. [PMID: 28508465 DOI: 10.1002/pmic.201600453] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 04/17/2017] [Accepted: 05/09/2017] [Indexed: 12/20/2022]
Abstract
Adjuvants enhance immunity elicited by vaccines through mechanisms that are poorly understood. Using a systems biology approach, we investigated temporal protein expression changes in five primary human immune cell populations: neutrophils, monocytes, natural killer cells, T cells, and B cells after administration of either an Adjuvant System 03 adjuvanted or unadjuvanted split-virus H5N1 influenza vaccine. Monocytes demonstrated the strongest differential signal between vaccine groups. On day 3 post-vaccination, several antigen presentation-related pathways, including MHC class I-mediated antigen processing and presentation, were enriched in monocytes and neutrophils and expression of HLA class I proteins was increased in the Adjuvant System 03 group. We identified several protein families whose proteomic responses predicted seroprotective antibody responses (>1:40 hemagglutination inhibition titer), including inflammation and oxidative stress proteins at day 1 as well as immunoproteasome subunit (PSME1 and PSME2) and HLA class I proteins at day 3 in monocytes. While comparison between temporal proteomic and transcriptomic results showed little overlap overall, enrichment of the MHC class I antigen processing and presentation pathway in monocytes and neutrophils was confirmed by both approaches.
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Affiliation(s)
| | | | - Parimal Samir
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA
| | | | - Kristen L Hoek
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Leigh M Howard
- Vanderbilt Vaccine Research Program, Division of Pediatric Infectious Diseases, Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Tara M Allos
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Xinnan Niu
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Laura E Gordy
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - C Buddy Creech
- Vanderbilt Vaccine Research Program, Division of Pediatric Infectious Diseases, Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | | | - Sebastian Joyce
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA.,Veterans Administration Tennessee Valley Healthcare System, Nashville, TN, USA
| | - Kathryn M Edwards
- Vanderbilt Vaccine Research Program, Division of Pediatric Infectious Diseases, Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Andrew J Link
- Department of Chemistry, Vanderbilt University, Nashville, TN, USA.,Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA
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Reyes AWB, Simborio HLT, Hop HT, Arayan LT, Kim S. Molecular cloning, purification and immunogenicity of recombinant Brucella abortus 544 malate dehydrogenase protein. J Vet Sci 2016; 17:119-22. [PMID: 27051349 PMCID: PMC4808637 DOI: 10.4142/jvs.2016.17.1.119] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 06/16/2015] [Accepted: 07/31/2015] [Indexed: 12/04/2022] Open
Abstract
The Brucella mdh gene was successfully cloned and expressed in E. coli. The purified recombinant malate dehydrogenase protein (rMDH) was reactive to Brucella-positive bovine serum in the early stage, but not reactive in the middle or late stage, and was reactive to Brucella-positive mouse serum in the late stage, but not in the early or middle stage of infection. In addition, rMDH did not react with Brucella-negative bovine or mouse sera. These results suggest that rMDH has the potential for use as a specific antigen in serological diagnosis for early detection of bovine brucellosis.
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Affiliation(s)
- Alisha Wehdnesday Bernardo Reyes
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea.; Department of Veterinary Paraclinical Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, College, Laguna 4031, Philippines
| | - Hannah Leah Tadeja Simborio
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
| | - Huynh Tan Hop
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
| | - Lauren Togonon Arayan
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
| | - Suk Kim
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea.; Institute of Agriculture and Life Science, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
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Expression of cytokine and apoptosis-related genes in bovine peripheral blood mononuclear cells stimulated with Brucella abortus recombinant proteins. Vet Res 2016; 47:30. [PMID: 26864657 PMCID: PMC4750197 DOI: 10.1186/s13567-016-0311-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Accepted: 01/12/2016] [Indexed: 01/13/2023] Open
Abstract
Brucellosis is a clinically and economically important disease. Therefore, eradication programs of the disease have been implemented in several countries. One hurdle in these programs is the detection of infected animals at the early stage. Although the protein antigens as diagnostic antigens have recently received attention, the exact mechanisms at the beginning of immune responses are not yet known. Therefore, genes encoding five B. abortus cellular proteins were cloned and the expressed recombinant proteins were purified. The expression of several cytokine genes (IL-1β, IL-4, IL-6, IL-12p40, IFN-γ, TNF-α, and iNOS) was analyzed in bovine peripheral blood mononuclear cells (bPBMC) after stimulation with the recombinant proteins. Three apoptosis-related genes, Bax, Bcl-2, and TLR4, were also included in the analysis to find out the adverse effects of the proteins to the cells. Each protein induced different patterns of cytokine expression depending on the stimulation time and antigen dose. Expression of IL-6, IL-12p40, and IFN-γ was induced with all of the proteins while IL-1β, IL-4, TNF-α, and iNOS gene expression was not. Expression of apoptosis-related genes was not altered except TLR4. These results suggest that the cellular antigens of B. abortus induce both humoral and cellular immunity via the production of IL-6, IL-12p40, and IFN-γ in bPBMC without exerting any adverse effects on the cells.
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