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Petersen MI, Carignano HA, Suarez Archilla G, Caffaro ME, Alvarez I, Miretti MM, Trono K. Expression-based analysis of genes related to single nucleotide polymorphism hits associated with bovine leukemia virus proviral load in Argentinean dairy cattle. J Dairy Sci 2020; 104:1993-2007. [PMID: 33246606 DOI: 10.3168/jds.2020-18924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 08/29/2020] [Indexed: 12/29/2022]
Abstract
In dairy cattle infected with bovine leukemia virus (BLV), the proviral load (PVL) level is directly related to the viral transmission from infected animals to their healthy herdmates. Two contrasting phenotypic groups can be identified when assessing PVL in peripheral blood of infected cows. A large number of reports point to bovine genetic variants (single nucleotide polymorphisms) as one of the key determinants underlying PVL level. However, biological mechanisms driving BLV PVL profiles and infection progression in cattle have not yet been elucidated. In this study, we evaluated whether a set of candidate genes affecting BLV PVL level according to whole genome association studies are differentially expressed in peripheral blood mononuclear cells derived from phenotypically contrasting groups of BLV-infected cows. During a 10-mo-long sampling scheme, 129 Holstein cows were phenotyped measuring anti-BLV antibody levels, PVL quantification, and white blood cell subpopulation counts. Finally, the expression of 8 genes (BOLA-DRB3, PRRC2A, ABT1, TNF, BAG6, BOLA-A, LY6G5B, and IER3) located within the bovine major histocompatibility complex region harboring whole genome association SNP hits was evaluated in 2 phenotypic groups: high PVL (n = 7) and low PVL (n = 8). The log2 initial fluorescence value (N0) transformed mean expression values for the ABT1 transcription factor were statistically different in high- and low-PVL groups, showing a higher expression of the ABT1 gene in low-PVL cows. The PRRC2A and IER3 genes had a significant positive (correlation coefficient = 0.61) and negative (correlation coefficient = -0.45) correlation with the lymphocyte counts, respectively. Additionally, the relationships between gene expression values and lymphocyte counts were modeled using linear regressions. Lymphocyte levels in infected cows were better explained (coefficient of determination = 0.56) when fitted a multiple linear regression model using both PRRC2A and IER3 expression values as independent variables. The present study showed evidence of differential gene expression between contrasting BLV infection phenotypes. These genes have not been previously related to BLV pathobiology. This valuable information represents a step forward in understanding the BLV biology and the immune response of naturally infected cows under a commercial milk production system. Efforts to elucidate biological mechanisms leading to BLV infection progression in cows are valuable for BLV control programs. Further studies integrating genotypic data, global transcriptome analysis, and BLV progression phenotypes are needed to better understand the BLV-host interaction.
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Affiliation(s)
- M I Petersen
- Instituto de Virología e Innovaciones Tecnológicas, Instituto Nacional de Tecnología Agropecuaria - Consejo Nacional de Investigaciones Científicas y Técnicas, B1686 Hurlingham, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, C1033AAJ Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, C1033AAJ Ciudad Autónoma de Buenos Aires, Argentina
| | - H A Carignano
- Instituto de Virología e Innovaciones Tecnológicas, Instituto Nacional de Tecnología Agropecuaria - Consejo Nacional de Investigaciones Científicas y Técnicas, B1686 Hurlingham, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, C1033AAJ Ciudad Autónoma de Buenos Aires, Argentina; Instituto de Genética, Instituto Nacional de Tecnología Agropecuaria, B1686 Hurlingham, Argentina.
| | - G Suarez Archilla
- Estación Experimental Agropecuaria Rafaela, Instituto Nacional de Tecnología Agropecuaria, S2300 Rafaela, Argentina
| | - M E Caffaro
- Instituto de Genética, Instituto Nacional de Tecnología Agropecuaria, B1686 Hurlingham, Argentina
| | - I Alvarez
- Instituto de Virología e Innovaciones Tecnológicas, Instituto Nacional de Tecnología Agropecuaria - Consejo Nacional de Investigaciones Científicas y Técnicas, B1686 Hurlingham, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, C1033AAJ Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, C1033AAJ Ciudad Autónoma de Buenos Aires, Argentina
| | - M M Miretti
- Consejo Nacional de Investigaciones Científicas y Técnicas, C1033AAJ Ciudad Autónoma de Buenos Aires, Argentina; Grupo de Investigación en Genética Aplicada, Instituto de Biología Subtropical, FCEQyN, Universidad Nacional de Misiones, N3300 Posadas, Argentina
| | - K Trono
- Instituto de Virología e Innovaciones Tecnológicas, Instituto Nacional de Tecnología Agropecuaria - Consejo Nacional de Investigaciones Científicas y Técnicas, B1686 Hurlingham, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, C1033AAJ Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, C1033AAJ Ciudad Autónoma de Buenos Aires, Argentina
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Carignano HA, Beribe MJ, Caffaro ME, Amadio A, Nani JP, Gutierrez G, Alvarez I, Trono K, Miretti MM, Poli MA. BOLA-DRB3gene polymorphisms influence bovine leukaemia virus infection levels in Holstein and Holstein × Jersey crossbreed dairy cattle. Anim Genet 2017; 48:420-430. [DOI: 10.1111/age.12566] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2017] [Indexed: 12/11/2022]
Affiliation(s)
- H. A. Carignano
- Instituto de Genética; Centro de Investigaciones en Ciencias Veterinarias y Agronómicas - INTA; Hurlingham B1686 Argentina
| | - M. J. Beribe
- Estación Experimental Agropecuaria Pergamino - INTA; Pergamino B2700 Argentina
| | - M. E. Caffaro
- Instituto de Genética; Centro de Investigaciones en Ciencias Veterinarias y Agronómicas - INTA; Hurlingham B1686 Argentina
| | - A. Amadio
- Estación Experimental Agropecuaria Rafaela - INTA; Rafaela S2300 Santa Fe Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Ciudad Autónoma de Buenos Aires C1033AAJ Argentina
| | - J. P. Nani
- Estación Experimental Agropecuaria Rafaela - INTA; Rafaela S2300 Santa Fe Argentina
| | - G. Gutierrez
- Instituto de Virología; Centro de Investigaciones en Ciencias Veterinarias y Agronómicas - INTA; Hurlingham B1686 Argentina
| | - I. Alvarez
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Ciudad Autónoma de Buenos Aires C1033AAJ Argentina
- Instituto de Virología; Centro de Investigaciones en Ciencias Veterinarias y Agronómicas - INTA; Hurlingham B1686 Argentina
| | - K. Trono
- Instituto de Virología; Centro de Investigaciones en Ciencias Veterinarias y Agronómicas - INTA; Hurlingham B1686 Argentina
| | - M. M. Miretti
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Ciudad Autónoma de Buenos Aires C1033AAJ Argentina
- Grupo de Investigación en Genética Aplicada; Instituto de Biología Subtropical (GIGA - IBS); Universidad Nacional de Misiones; Posadas N3300 Argentina
| | - M. A. Poli
- Instituto de Genética; Centro de Investigaciones en Ciencias Veterinarias y Agronómicas - INTA; Hurlingham B1686 Argentina
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Jaworski JP, Compaired D, Trotta M, Perez M, Trono K, Fondevila N. Validation of an r3AB1-FMDV-NSP ELISA to distinguish between cattle infected and vaccinated with foot-and-mouth disease virus. J Virol Methods 2011; 178:191-200. [DOI: 10.1016/j.jviromet.2011.09.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Revised: 06/20/2011] [Accepted: 09/14/2011] [Indexed: 11/25/2022]
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Alvarez I, Gutierrez G, Barrandeguy M, Trono K. Immunochromatographic lateral flow test for detection of antibodies to Equine infectious anemia virus. J Virol Methods 2010; 167:152-7. [DOI: 10.1016/j.jviromet.2010.03.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 03/18/2010] [Accepted: 03/24/2010] [Indexed: 11/17/2022]
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Alvarez I, Gutierrez G, Vissani A, Rodriguez S, Barrandeguy M, Trono K. Standardization and validation of an agar gel immunodiffusion test for the diagnosis of equine infectious anemia using a recombinant p26 antigen. Vet Microbiol 2007; 121:344-51. [PMID: 17292568 DOI: 10.1016/j.vetmic.2007.01.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2006] [Revised: 01/05/2007] [Accepted: 01/09/2007] [Indexed: 11/23/2022]
Abstract
We developed and validated an agar gel immunodiffusion test (AGID) test for the diagnosis of equine infectious anemia (EIA) using as antigen the p26 protein of equine infectious anemia virus (EIAV) produced in the Escherichia coli expression system. The developed rp26-AGID test showed an excellent diagnostic relative sensitivity (100%) and specificity (100%) compared to a commercial AGID assay when 1855 field serum samples were analyzed. In addition, the rp26-AGID demonstrated to be a precise assay with excellent repeatability and reproducibility. In the analytical sensitivity trial, positive sera showed nearly the same endpoint dilutions for both compared tests. No positive-reactions were observed with 35 serum samples with antibodies related to other endemic agents and also with severely hemolysed samples, demonstrating that the rp26-AGID has an excellent analytical specificity. Complete concordance with blind previous results from five proficiency test panels confirmed the capability of the assay of accurate detection of EIAV antibodies. This is the first time that a recombinant AGID assay able to identify EIAV infections has been standardized and validated in Argentina according to international guidelines. Taking into account the results obtained, the p26-AGID could be adopted as an official test method for the diagnosis and control of EIA in this country.
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Affiliation(s)
- I Alvarez
- Instituto de Virología, Centro de Investigaciones en Ciencias Veterinarias y Agronómicas, INTA, C.C. 1712 Castelar, Argentina.
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Pérez Filgueira DM, Mozgovoj M, Wigdorovitz A, Dus Santos MJ, Parreño V, Trono K, Fernandez FM, Carrillo C, Babiuk LA, Morris TJ, Borca MV. Passive protection to bovine rotavirus (BRV) infection induced by a BRV VP8* produced in plants using a TMV-based vector. Arch Virol 2004; 149:2337-48. [PMID: 15338319 DOI: 10.1007/s00705-004-0379-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2004] [Accepted: 06/08/2004] [Indexed: 11/27/2022]
Abstract
We have previously reported on the use of a tobacco mosaic virus (TMV) vector TMV-30B to express foreign viral antigens for use as experimental immunogens. Here we describe the development of an improved TMV-30B vector that adds a sequence of 7 histidine residues to the C-terminus of recombinant proteins expressed in the vector. We used this TMV-30B-HISc vector to express the VP8* fragment of the VP4 protein from bovine rotavirus (BRV) strain C-486 in plants. Recombinant VP8* protein was purified from N. benthamiana leaves at 7 days post-inoculation by immobilized metal affinity chromatography. The plant-produced VP8* was initially detected using anti-His tag mAb and its antigenic nature was confirmed using both monoclonal and polyclonal specific antisera directed against BRV. Adult female mice, inoculated by the intraperinoteal route with an immunogen containing 4 microg of recombinant VP8*, developed a specific and sustained response to the native VP8* from the homologous BRV. Eighty five percent of suckling mice from immunized dams that were challenged with the homologous virus at the fifth day of age were protected from virus as compared to 35% of the pups from mothers immunized with a control protein. These results demonstrate that the plant-produced VP8* was able to induce passive protection in the new born through the immunization of dams. This suggests that the technology presented here provides a simple method for using plants as an inexpensive alternative source for production of recombinant anti-rotavirus antigens.
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Affiliation(s)
- D M Pérez Filgueira
- Beadle Center, School of Biological Sciences, University of Nebraska, Lincoln, Nebraska, USA.
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Carrillo C, Wigdorovitz A, Trono K, Dus Santos MJ, Castañón S, Sadir AM, Ordas R, Escribano JM, Borca MV. Induction of a virus-specific antibody response to foot and mouth disease virus using the structural protein VP1 expressed in transgenic potato plants. Viral Immunol 2001; 14:49-57. [PMID: 11270596 DOI: 10.1089/08828240151061383] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
We have recently communicated the oral and parental immunogenicity of the structural protein VP1 of foot and mouth disease virus (FMDV) expressed in different transgenic plants. Those results clearly indicated the necessity of increasing the expression of the foreign genes in the transgenic plant to avoid additional steps toward the purification and/or concentration of the antigen of interest. Here, we report the production of transgenic potatoes plants containing the VP1 gene cloned under the regulatory activity of either a single (pRok2) or a double (pRok3) copy of the S35 cauliflower mosaic virus (CaMV 35S) promoter, as a strategy for increasing the level of VP1 gene expression. The presence of the VP1 gene in the plants was confirmed by polymerase chain reaction (PCR) and its specific transcription activity was demonstrated by reverse transcriptase-polymerase chain reaction (RT-PCR). The results showed that, although the immunized animals presented a FMDV VP1 specific antibody response and protection against the experimental challenge, no significant differences were demonstrated in the immunizing activity of plant extracts obtained from the pRok2 or pRok3 transformed plants. These results confirm those previously obtained using other plant species allowing the possibility of using plants as antigen expression vectors, and demonstrated that at least in the potato system, the use of double CaMV 35S promoter does not cause a significant increase in the level of the VP1 expressed.
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Affiliation(s)
- C Carrillo
- Instituto de Virología, CICV, INTA-Castelar, Buenos Aires, Argentina
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Wigdorovitz A, Carrillo C, Dus Santos MJ, Trono K, Peralta A, Gómez MC, Ríos RD, Franzone PM, Sadir AM, Escribano JM, Borca MV. Induction of a protective antibody response to foot and mouth disease virus in mice following oral or parenteral immunization with alfalfa transgenic plants expressing the viral structural protein VP1. Virology 1999; 255:347-53. [PMID: 10069960 DOI: 10.1006/viro.1998.9590] [Citation(s) in RCA: 130] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The utilization of transgenic plants expressing recombinant antigens to be used in the formulation of experimental immunogens has been recently communicated. We report here the development of transgenic plants of alfalfa expressing the structural protein VP1 of foot and mouth disease virus (FMDV). The presence of the transgenes in the plants was confirmed by PCR and their specific transcription was demonstrated by RT-PCR. Mice parenterally immunized using leaf extracts or receiving in their diet freshly harvested leaves from the transgenic plants developed a virus-specific immune response. Animals immunized by either method elicited a specific antibody response to a synthetic peptide representing amino acid residues 135-160 of VP1, to the structural protein VP1, and to intact FMDV particles. Additionally, the immunized mice were protected against experimental challenge with the virus. We believe this is the first report demonstrating the induction of a protective systemic antibody response in animals fed transgenic plants expressing a viral antigen. These results support the feasibility of producing edible vaccines in transgenic forage plants, such as alfalfa, commonly used in the diet of domestic animals even for those antigens for which a systemic immune response is required.
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MESH Headings
- Administration, Oral
- Animals
- Antibodies, Viral/biosynthesis
- Antibodies, Viral/immunology
- Antigens, Viral/genetics
- Antigens, Viral/immunology
- Capsid/genetics
- Capsid/immunology
- Capsid Proteins
- Foot-and-Mouth Disease/prevention & control
- Injections, Intraperitoneal
- Male
- Medicago sativa
- Mice
- Mice, Inbred BALB C
- Plants, Genetically Modified
- Transcription, Genetic
- Transformation, Genetic
- Vaccination
- Vaccines, Synthetic/immunology
- Viral Vaccines/immunology
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Affiliation(s)
- A Wigdorovitz
- Instituto de Virología, C. I. C. V., INTA-Castelar, CC77, Morón, (1708), Pcia. de Buenos Aires, Argentina
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