A novel association of BoLA DRB3 alleles in BLV infected cattle with different proviral loads

Bovine leukemia virus (BLV) is associated with the most common neoplastic disease of cattle. BLV has a silent dissemination in the herd due to infected cell exchange, thus the concentration of BLV-infected cells in blood should play a major role in the success of viral transmission. Genes from Bovin...

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Autores principales: Nieto Farias, María Victoria, Caffaro, Marí­a Eugenia, Lendez, Pamela Anahí, Passucci, Juan, Poli, Mario Andres, Ceriani, María Carolina, Dolcini, Guillermina Laura
Formato: info:eu-repo/semantics/article
Lenguaje:Inglés
Publicado: 2018
Materias:
Acceso en línea:http://hdl.handle.net/20.500.12123/1976
http://www.revistas.usp.br/bjvras/article/view/123769/136008
http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2017.123769
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author Nieto Farias, María Victoria
Caffaro, Marí­a Eugenia
Lendez, Pamela Anahí
Passucci, Juan
Poli, Mario Andres
Ceriani, María Carolina
Dolcini, Guillermina Laura
author_browse Caffaro, Marí­a Eugenia
Ceriani, María Carolina
Dolcini, Guillermina Laura
Lendez, Pamela Anahí
Nieto Farias, María Victoria
Passucci, Juan
Poli, Mario Andres
author_facet Nieto Farias, María Victoria
Caffaro, Marí­a Eugenia
Lendez, Pamela Anahí
Passucci, Juan
Poli, Mario Andres
Ceriani, María Carolina
Dolcini, Guillermina Laura
author_sort Nieto Farias, María Victoria
collection INTA Digital
description Bovine leukemia virus (BLV) is associated with the most common neoplastic disease of cattle. BLV has a silent dissemination in the herd due to infected cell exchange, thus the concentration of BLV-infected cells in blood should play a major role in the success of viral transmission. Genes from Bovine leukocyte antigen (BoLA), the MHC system of cattle, are associated with genetic resistance and susceptibility to a wide range of diseases, and also with production traits. Some BoLA DRB3.2 allele polymorphisms in Holstein cattle have been associated with resistance or susceptibility to BLV-disease development, or with proviral load (PVL). This investigation studied 107 BLV-infected Argentinean Holstein dairy cows, all of them belonging to one herd. PVL was analysed by qPCR and animals were classified as high proviral load (HPVL, N = 88) and low proviral load (LPVL, N = 19), and BoLA DRB3.2 alleles were genotyped. Alleles BoLA DRB3.2*1501 and *1201 were significantly associated with HPVL (p = 0.0230 and p = 0.0111 respectively), while allele BoLA DRB3.2*0201 was significantly associated with LPVL (p = 0.0030). The present study aims at contributing to the knowledge of the association between BoLA polymorphism and development of a BLV infection profile. Genes that best explain the PVL in this population resulted BoLA DRB3.2*0201 (as a protection factor) and *1501 (as a risk factor). Allelic differences may play an important role in the development of effective immune responses. A better understanding of how BoLA polymorphism contributes to these responses and the establishment of a BLV status is desirable to schedule and evaluate control measures.
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spelling INTA19762019-01-23T17:53:41Z A novel association of BoLA DRB3 alleles in BLV infected cattle with different proviral loads Nieto Farias, María Victoria Caffaro, Marí­a Eugenia Lendez, Pamela Anahí Passucci, Juan Poli, Mario Andres Ceriani, María Carolina Dolcini, Guillermina Laura Ganado Bovino Enfermedades de los Animales Virus Leucemia Bovina Polimorfismo Alelos Cattle Animal Diseases Bovine Leukaemia Virus Polymorphism Alleles Bovine leukemia virus (BLV) is associated with the most common neoplastic disease of cattle. BLV has a silent dissemination in the herd due to infected cell exchange, thus the concentration of BLV-infected cells in blood should play a major role in the success of viral transmission. Genes from Bovine leukocyte antigen (BoLA), the MHC system of cattle, are associated with genetic resistance and susceptibility to a wide range of diseases, and also with production traits. Some BoLA DRB3.2 allele polymorphisms in Holstein cattle have been associated with resistance or susceptibility to BLV-disease development, or with proviral load (PVL). This investigation studied 107 BLV-infected Argentinean Holstein dairy cows, all of them belonging to one herd. PVL was analysed by qPCR and animals were classified as high proviral load (HPVL, N = 88) and low proviral load (LPVL, N = 19), and BoLA DRB3.2 alleles were genotyped. Alleles BoLA DRB3.2*1501 and *1201 were significantly associated with HPVL (p = 0.0230 and p = 0.0111 respectively), while allele BoLA DRB3.2*0201 was significantly associated with LPVL (p = 0.0030). The present study aims at contributing to the knowledge of the association between BoLA polymorphism and development of a BLV infection profile. Genes that best explain the PVL in this population resulted BoLA DRB3.2*0201 (as a protection factor) and *1501 (as a risk factor). Allelic differences may play an important role in the development of effective immune responses. A better understanding of how BoLA polymorphism contributes to these responses and the establishment of a BLV status is desirable to schedule and evaluate control measures. O vírus da leucemia bovina (BLV) está associado à doença neoplásica mais comum do gado bovino. O BLV tem uma disseminação silenciosa no rebanho devido à troca de células infectadas, assim, a concentração de células BLV infectadas no sangue deve desempenhar um papel importante no sucesso da transmissão viral. Os genes do antígeno leucocitário bovino (BoLA), sistema MHC do gado bovino, estão associados à resistência genética e à susceptibilidade a uma ampla gama de doenças, bem como às características da produção. Alguns polimorfismos de alelos de BoLA DRB3.2 em bovinos Holstein têm sido associados à resistência ou susceptibilidade ao desenvolvimento da doença BLV, ou com carga proviral (PVL). Esta investigação avaliou 107 vacas leiteiras da raça Holstein argentina infectadas com BLV e pertencentes a um único rebanho. A PVL foi analisada por qPCR, os animais foram classificados em alta carga proviral (HPVL, N = 88) e baixa carga proviral (LPVL, N = 19), e os alelos BoLA DRB3.2 foram genotipados. Os alelos BoLA DRB3.2*1501 e *1201 estavam significativamente relacionados à HPVL (p = 0,0230 e p = 0,0111, respectivamente), enquanto o alelo BoLA DRB3.2*0201, à LPVL (p = 0,0030). O objetivo deste estudo é contribuir para o conhecimento da associação entre o polimorfismo de BoLA e o desenvolvimento de infecção por BLV. Os genes que melhor explicam a PVL na população analisada resultaram em BoLA DRB3.2*0201 (como fator de proteção) e *1501 (como fator de risco). As diferenças alélicas podem desempenhar um papel importante no desenvolvimento de respostas imunitárias eficazes. Uma melhor compreensão de como o polimorfismo BoLA contribui para estas respostas e o estabelecimento de um estado BLV é desejável para agendar e avaliar as medidas de controle. Inst. de Genética "Ewald A. Favret"- IGEAF Fil: Nieto Farias, María Victoria. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Centro de Investigación Veterinaria de Tandil, Laboratorio de Virología; Argentina Fil: Caffaro, Marí­a Eugenia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Lendez, Pamela Anahí. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Centro de Investigación Veterinaria de Tandil, Laboratorio de Virología; Argentina Fil: Passucci, Juan. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Área de Epidemiología; Argentina Fil: Poli, Mario Andres. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Ceriani, María Carolina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Centro de Investigación Veterinaria de Tandil, Laboratorio de Virología; Argentina Fil: Dolcini, Guillermina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Centro de Investigación Veterinaria de Tandil, Laboratorio de Virología; Argentina 2018-03-07T12:44:15Z 2018-03-07T12:44:15Z 2017 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1976 http://www.revistas.usp.br/bjvras/article/view/123769/136008 1413-9596 (Print) 1678-4456 (Online) http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2017.123769 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Brazilian Journal of Veterinary Research and Animal Science v. 54, (3) : 215-224 (2017)
spellingShingle Ganado Bovino
Enfermedades de los Animales
Virus Leucemia Bovina
Polimorfismo
Alelos
Cattle
Animal Diseases
Bovine Leukaemia Virus
Polymorphism
Alleles
Nieto Farias, María Victoria
Caffaro, Marí­a Eugenia
Lendez, Pamela Anahí
Passucci, Juan
Poli, Mario Andres
Ceriani, María Carolina
Dolcini, Guillermina Laura
A novel association of BoLA DRB3 alleles in BLV infected cattle with different proviral loads
title A novel association of BoLA DRB3 alleles in BLV infected cattle with different proviral loads
title_full A novel association of BoLA DRB3 alleles in BLV infected cattle with different proviral loads
title_fullStr A novel association of BoLA DRB3 alleles in BLV infected cattle with different proviral loads
title_full_unstemmed A novel association of BoLA DRB3 alleles in BLV infected cattle with different proviral loads
title_short A novel association of BoLA DRB3 alleles in BLV infected cattle with different proviral loads
title_sort novel association of bola drb3 alleles in blv infected cattle with different proviral loads
topic Ganado Bovino
Enfermedades de los Animales
Virus Leucemia Bovina
Polimorfismo
Alelos
Cattle
Animal Diseases
Bovine Leukaemia Virus
Polymorphism
Alleles
url http://hdl.handle.net/20.500.12123/1976
http://www.revistas.usp.br/bjvras/article/view/123769/136008
http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2017.123769
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