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Tomé-Poderti L, Olivero-Deibe N, Carrión F, Portela MM, Obal G, Cabrera G, Bianchi S, Lima A, Addiego A, Durán R, Moratorio G, Pritsch O. Characterization and application of recombinant Bovine Leukemia Virus Env protein. Sci Rep 2024; 14:12190. [PMID: 38806566 PMCID: PMC11133380 DOI: 10.1038/s41598-024-62811-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/21/2024] [Indexed: 05/30/2024] Open
Abstract
The Bovine Leukemia Virus (BLV) Envelope (Env) glycoprotein complex is instrumental in viral infectivity and shapes the host's immune response. This study presents the production and characterization of a soluble furin-mutated BLV Env ectodomain (sBLV-EnvFm) expressed in a stable S2 insect cell line. We purified a 63 kDa soluble protein, corresponding to the monomeric sBLV-EnvFm, which predominantly presented oligomannose and paucimannose N-glycans, with a high content of core fucose structures. Our results demonstrate that our recombinant protein can be recognized from specific antibodies in BLV infected cattle, suggesting its potential as a powerful diagnostic tool. Moreover, the robust humoral immune response it elicited in mice shows its potential contribution to the development of subunit-based vaccines against BLV.
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Affiliation(s)
- Lorena Tomé-Poderti
- Immunovirology Lab, Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay.
- Morphogenesis and Antigenicity of HIV and Hepatitis Viruses (MAVIVH), INSERM Unit 1259, Université de Tours and CHRU de Tours, Tours, France.
| | | | - Federico Carrión
- Immunovirology Lab, Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay
| | - María Magdalena Portela
- Analytical Biochemistry and Proteomics Unit, Instituto de Investigaciones Biológicas Clemente Estable/Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay
- Facultad de Ciencias, Universidad de la República, 11400, Montevideo, Uruguay
| | - Gonzalo Obal
- Immunovirology Lab, Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay
| | - Gleysin Cabrera
- Analytical Biochemistry and Proteomics Unit, Instituto de Investigaciones Biológicas Clemente Estable/Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay
| | - Sergio Bianchi
- Laboratory of Molecular Biomarkers, Department of Physiopathology, University Hospital, Universidad de la República, 11600, Montevideo, Uruguay
- Functional Genomics Unit, Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay
| | - Analia Lima
- Analytical Biochemistry and Proteomics Unit, Instituto de Investigaciones Biológicas Clemente Estable/Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay
| | - Andrés Addiego
- Immunovirology Lab, Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay
| | - Rosario Durán
- Analytical Biochemistry and Proteomics Unit, Instituto de Investigaciones Biológicas Clemente Estable/Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay
| | - Gonzalo Moratorio
- Experimental Evolution of Viruses, Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay
- Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Otto Pritsch
- Immunovirology Lab, Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay
- Immunobiology Department School of Medicine, Universidad de la República, 11800, Montevideo, Uruguay
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Schade R, Hlinak A, Marburger A, Henklein P, Morgenstern R, Blankenstein P, Gerl M, Zott A, Pfister C, Erhard M. Advantages of Using Egg Yolk Antibodies in the Life Sciences: The Results of Five Studies. Altern Lab Anim 2020. [DOI: 10.1177/026119299702500512] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
It has been known for over a century that specific antibodies can be extracted from the eggs of immunised chickens. However, it was only when animal welfare became a subject of public debate that the chicken was considered as an alternative source of antibodies due to the possibility of non-invasive antibody sampling. Unfortunately, the welfare of animals alone is not sufficient to attract the interest of scientists; it is therefore important to demonstrate to potential users that avian antibodies can be used successfully in a variety of scientific investigations. The particular specificity of avian antibodies would appear to be due to the phylogenetic difference between Mammalia and Aves as well as to differences between the molecular structures of avian immunoglobulin (IgY) and mammalian immunoglobulin (IgG). The use of avian antibodies has additional advantages, as a considerable quantity of antibodies can be obtained from one chicken, and because the specificity of avian antibodies often markedly differs from that of comparable mammalian antibodies. This paper aims to demonstrate the advantages of using avian antibodies by presenting the results of five separate studies. In the first study, coordinated by Rüdiger Schade, the visualisation of cholecystokinin-like immuno-reactivity in the substantia nigra of rats by using anti-cholecystokinin antibody, without the pre-treatment of colchicine, is described. The second study, headed by Albrecht Zott, describes the use of avian antibodies in the identification of modern acellular pertussis vaccines by using rocket immunoelectrophoresis. The identification of unknown vaccine batches and the comparison with reference vaccines is a prerequisite for reducing the number of animal experiments necessary for vaccine control. The third study, coordinated by Martin Gerl, investigates the specificity of antibodies directed against the N-terminal propeptide of procollagen type III (PIIINP). Among the antibodies originating from different species (rabbit, mouse and chicken), only the chicken antibody was able to respond to the PIIINP in both human and rat sera. Thus, a direct comparison between human serum samples (alcoholic liver) and serum samples derived from corresponding animal models was possible. The fourth study, coordinated by Michael Erhard, shows that egg yolk antibodies can be successfully used to manage infectious diarrhoea in young agricultural animals. The final study, led by Andreas Hlinak, describes the successful production of anti-bovine leukaemia virus antibody. This antibody could be used in several diagnostic systems (for example, enzyme immunoassays and cytology). The five studies demonstrate that avian antibodies are an attractive alternative to mammalian antibodies, not only with respect to the welfare of animals, but also with respect to scientific and economic considerations.
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Affiliation(s)
- Rüdiger Schade
- Institute of Pharmacology and Toxicology, Department of Medicine (Charité), Humboldt University, Dorotheenstrasse 94, 10117 Berlin, Germany
| | - Andreas Hlinak
- Institute of Virology, Department of Veterinary Medicine, Free University, Luisenstrasse 56, 10117 Berlin, Germany
| | - Andrea Marburger
- Institute of Pharmacology and Toxicology, Department of Medicine (Charité), Humboldt University, Dorotheenstrasse 94, 10117 Berlin, Germany
| | - Peter Henklein
- Institute of Biochemistry, Department of Medicine (Charité), Humboldt University, Dorotheenstrasse 94, 10117 Berlin, Germany
| | - Rudolf Morgenstern
- Institute of Pharmacology and Toxicology, Department of Medicine (Charité), Humboldt University, Dorotheenstrasse 94, 10117 Berlin, Germany
| | - Petra Blankenstein
- Institute of Virology, Department of Veterinary Medicine, Free University, Luisenstrasse 56, 10117 Berlin, Germany
| | - Martin Gerl
- Hoechst AG, TD Metabolism, H821, Postfach 800320, 65926 Frankfurt am Main, Germany
| | - Albrecht Zott
- Paul Ehrlich Institute, Paul Ehrlich Strasse 51–59, 63225 Langen, Germany
| | - Claus Pfister
- German Institute of Human Nutrition, Bergholz-Rehbrücke
| | - Michael Erhard
- Institute of Physiology, Physiological Chemistry and Animal Nutrition, Department of Veterinary Medicine, Ludwig Maximilians University, Veterinärstrasse 13, 80539 Munich, Germany
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Beier D, Riebe R, Blankenstein P, Starick E, Bondzio A, Marquardt O. Establishment of a new bovine leukosis virus producing cell line. J Virol Methods 2005; 121:239-46. [PMID: 15381362 PMCID: PMC7112874 DOI: 10.1016/j.jviromet.2004.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2003] [Revised: 06/17/2004] [Accepted: 06/21/2004] [Indexed: 11/17/2022]
Abstract
Due to the prevalence of different bovine leukosis virus (BLV) species in the cattle population in Europe, problems may arise in the serological diagnosis of BLV infections. In addition, earlier investigations demonstrated that contamination of the BLV antigen-producing cell culture systems by bovine viral diarrhea virus (BVDV) may give rise to misinterpretation of serological test results after BVDV vaccination of cattle. By co-cultivation of peripheral leukocytes of a BLV-infected cow with a permanent sheep kidney cell line, a new BLV-producing cell line named PO714 was established. This line carries a BLV provirus of the Belgian species and has been tested to be free of a variety of possibly contaminating viruses and mycoplasms. Investigations of a panel of well-characterised sera by agar gel immunodiffusion (AGID) and capture ELISA (cELISA) tests using antigen prepared from this new cell line in comparison with antigen of the well-known cell line FLK/BLV yielded comparable results. False positive results caused by BVDV cross-reactions could be eliminated when tests were carried out with antigen derived from the new cell line.
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Affiliation(s)
- D Beier
- Federal Research Centre for Virus Diseases of Animals, Seestrabetasse 55, D-16868 Wusterhausen, Germany.
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Affiliation(s)
- N. F. Starodub
- Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine
| | - V. M. Starodub
- Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine
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