Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line

Autores
Gutiérrez, Silvina Elena; Ceriani, Maria Carolina; Juliarena, Marcela Alicia; Ferrer, Jorge F.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Bovine leukemia virus (BLV) is a B-cell tropic Deltaretrovirus that induces a lifelong infection and causes a fatal lymphosarcoma in less than 10% of the infected cattle. BLV is usually present in its host in a transcriptional repressed state but becomes de-repressed a few hours after the infected lymphocytes are cultured in vitro. In the present study we have examined the effect of soluble host factors and various substances on the synthesis of the major BLV protein (p24) in a permanent culture (cell line NBC-10) of neoplastic B-lymphocytes derived from BLV-infected cattle. Certain batches of fetal calf serum (FCS) and bovine platelet lysates (PLy) induced a rapid and drastic increase of the synthesis of BLVp24 in the NBC-10 cells. Neutralization experiments with specific antibodies demonstrated that the transforming growth factor-β (TGF-β) was responsible for the stimulatory activity of FCS and PLy on the synthesis of BLVp24 in the NBC-10 cells. Recombinant TGF-β also stimulated the synthesis of BLVp24 in cultures of peripheral blood mononuclear cells (PBMCs) obtained from BLV-infected cattle. Mitogens, phorbol-myristate-acetate and prostaglandin E2, previously shown to stimulate the expression of BLV in cultures of PBMC, did not induce the synthesis of BLVp24 in cultures of NBC-10 cells. Plasma, serum and milk from BLV-negative cattle inhibited the synthesis of BLVp24 induced by FCS, PLy or TGF-β in the NBC-10 cells. The blocking activity was found in the whey and the β-casein fractions of bovine milk. The relevance of these findings with regard to the previously reported plasma factor (PBB) with blocking activity on the expression of BLV in short-term PBMC cultures is discussed. Based on the information obtained in the present study we have standardized a reproducible and rapid assay system for the identification of factors that regulate the synthesis of BLVp24 in naturally infected neoplastic B cells.
Fil: Gutiérrez, Silvina Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
Fil: Ceriani, Maria Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
Fil: Juliarena, Marcela Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
Fil: Ferrer, Jorge F.. University of Pennsylvania; Estados Unidos
Materia
Β-CASEIN
BLVP24
BOVINE LEUKEMIA VIRUS (BLV)
MILK
NBC-10 CELLS
PLASMA
RETROVIRUS
TRANSFORMING GROWTH FACTOR-Β (TGF-Β)
WHEY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/95703
Acceder
id CONICETDig_2af985c7fdf963240fcccd6bff8b9200
oai_identifier_str oai:ri.conicet.gov.ar:11336/95703
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell lineGutiérrez, Silvina ElenaCeriani, Maria CarolinaJuliarena, Marcela AliciaFerrer, Jorge F.Β-CASEINBLVP24BOVINE LEUKEMIA VIRUS (BLV)MILKNBC-10 CELLSPLASMARETROVIRUSTRANSFORMING GROWTH FACTOR-Β (TGF-Β)WHEYhttps://purl.org/becyt/ford/4.3https://purl.org/becyt/ford/4Bovine leukemia virus (BLV) is a B-cell tropic Deltaretrovirus that induces a lifelong infection and causes a fatal lymphosarcoma in less than 10% of the infected cattle. BLV is usually present in its host in a transcriptional repressed state but becomes de-repressed a few hours after the infected lymphocytes are cultured in vitro. In the present study we have examined the effect of soluble host factors and various substances on the synthesis of the major BLV protein (p24) in a permanent culture (cell line NBC-10) of neoplastic B-lymphocytes derived from BLV-infected cattle. Certain batches of fetal calf serum (FCS) and bovine platelet lysates (PLy) induced a rapid and drastic increase of the synthesis of BLVp24 in the NBC-10 cells. Neutralization experiments with specific antibodies demonstrated that the transforming growth factor-β (TGF-β) was responsible for the stimulatory activity of FCS and PLy on the synthesis of BLVp24 in the NBC-10 cells. Recombinant TGF-β also stimulated the synthesis of BLVp24 in cultures of peripheral blood mononuclear cells (PBMCs) obtained from BLV-infected cattle. Mitogens, phorbol-myristate-acetate and prostaglandin E2, previously shown to stimulate the expression of BLV in cultures of PBMC, did not induce the synthesis of BLVp24 in cultures of NBC-10 cells. Plasma, serum and milk from BLV-negative cattle inhibited the synthesis of BLVp24 induced by FCS, PLy or TGF-β in the NBC-10 cells. The blocking activity was found in the whey and the β-casein fractions of bovine milk. The relevance of these findings with regard to the previously reported plasma factor (PBB) with blocking activity on the expression of BLV in short-term PBMC cultures is discussed. Based on the information obtained in the present study we have standardized a reproducible and rapid assay system for the identification of factors that regulate the synthesis of BLVp24 in naturally infected neoplastic B cells.Fil: Gutiérrez, Silvina Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; ArgentinaFil: Ceriani, Maria Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; ArgentinaFil: Juliarena, Marcela Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; ArgentinaFil: Ferrer, Jorge F.. University of Pennsylvania; Estados UnidosElsevier Science2009-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/95703Gutiérrez, Silvina Elena; Ceriani, Maria Carolina; Juliarena, Marcela Alicia; Ferrer, Jorge F.; Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line; Elsevier Science; Veterinary Immunology And Immunopathology; 131; 3-4; 10-2009; 246-2580165-2427CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.vetimm.2009.04.017info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0165242709001573info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:01:19Zoai:ri.conicet.gov.ar:11336/95703instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:01:19.603CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line
title Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line
spellingShingle Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line
Gutiérrez, Silvina Elena
Β-CASEIN
BLVP24
BOVINE LEUKEMIA VIRUS (BLV)
MILK
NBC-10 CELLS
PLASMA
RETROVIRUS
TRANSFORMING GROWTH FACTOR-Β (TGF-Β)
WHEY
title_short Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line
title_full Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line
title_fullStr Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line
title_full_unstemmed Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line
title_sort Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line
dc.creator.none.fl_str_mv Gutiérrez, Silvina Elena
Ceriani, Maria Carolina
Juliarena, Marcela Alicia
Ferrer, Jorge F.
author Gutiérrez, Silvina Elena
author_facet Gutiérrez, Silvina Elena
Ceriani, Maria Carolina
Juliarena, Marcela Alicia
Ferrer, Jorge F.
author_role author
author2 Ceriani, Maria Carolina
Juliarena, Marcela Alicia
Ferrer, Jorge F.
author2_role author
author
author
dc.subject.none.fl_str_mv Β-CASEIN
BLVP24
BOVINE LEUKEMIA VIRUS (BLV)
MILK
NBC-10 CELLS
PLASMA
RETROVIRUS
TRANSFORMING GROWTH FACTOR-Β (TGF-Β)
WHEY
topic Β-CASEIN
BLVP24
BOVINE LEUKEMIA VIRUS (BLV)
MILK
NBC-10 CELLS
PLASMA
RETROVIRUS
TRANSFORMING GROWTH FACTOR-Β (TGF-Β)
WHEY
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.3
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Bovine leukemia virus (BLV) is a B-cell tropic Deltaretrovirus that induces a lifelong infection and causes a fatal lymphosarcoma in less than 10% of the infected cattle. BLV is usually present in its host in a transcriptional repressed state but becomes de-repressed a few hours after the infected lymphocytes are cultured in vitro. In the present study we have examined the effect of soluble host factors and various substances on the synthesis of the major BLV protein (p24) in a permanent culture (cell line NBC-10) of neoplastic B-lymphocytes derived from BLV-infected cattle. Certain batches of fetal calf serum (FCS) and bovine platelet lysates (PLy) induced a rapid and drastic increase of the synthesis of BLVp24 in the NBC-10 cells. Neutralization experiments with specific antibodies demonstrated that the transforming growth factor-β (TGF-β) was responsible for the stimulatory activity of FCS and PLy on the synthesis of BLVp24 in the NBC-10 cells. Recombinant TGF-β also stimulated the synthesis of BLVp24 in cultures of peripheral blood mononuclear cells (PBMCs) obtained from BLV-infected cattle. Mitogens, phorbol-myristate-acetate and prostaglandin E2, previously shown to stimulate the expression of BLV in cultures of PBMC, did not induce the synthesis of BLVp24 in cultures of NBC-10 cells. Plasma, serum and milk from BLV-negative cattle inhibited the synthesis of BLVp24 induced by FCS, PLy or TGF-β in the NBC-10 cells. The blocking activity was found in the whey and the β-casein fractions of bovine milk. The relevance of these findings with regard to the previously reported plasma factor (PBB) with blocking activity on the expression of BLV in short-term PBMC cultures is discussed. Based on the information obtained in the present study we have standardized a reproducible and rapid assay system for the identification of factors that regulate the synthesis of BLVp24 in naturally infected neoplastic B cells.
Fil: Gutiérrez, Silvina Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
Fil: Ceriani, Maria Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
Fil: Juliarena, Marcela Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
Fil: Ferrer, Jorge F.. University of Pennsylvania; Estados Unidos
description Bovine leukemia virus (BLV) is a B-cell tropic Deltaretrovirus that induces a lifelong infection and causes a fatal lymphosarcoma in less than 10% of the infected cattle. BLV is usually present in its host in a transcriptional repressed state but becomes de-repressed a few hours after the infected lymphocytes are cultured in vitro. In the present study we have examined the effect of soluble host factors and various substances on the synthesis of the major BLV protein (p24) in a permanent culture (cell line NBC-10) of neoplastic B-lymphocytes derived from BLV-infected cattle. Certain batches of fetal calf serum (FCS) and bovine platelet lysates (PLy) induced a rapid and drastic increase of the synthesis of BLVp24 in the NBC-10 cells. Neutralization experiments with specific antibodies demonstrated that the transforming growth factor-β (TGF-β) was responsible for the stimulatory activity of FCS and PLy on the synthesis of BLVp24 in the NBC-10 cells. Recombinant TGF-β also stimulated the synthesis of BLVp24 in cultures of peripheral blood mononuclear cells (PBMCs) obtained from BLV-infected cattle. Mitogens, phorbol-myristate-acetate and prostaglandin E2, previously shown to stimulate the expression of BLV in cultures of PBMC, did not induce the synthesis of BLVp24 in cultures of NBC-10 cells. Plasma, serum and milk from BLV-negative cattle inhibited the synthesis of BLVp24 induced by FCS, PLy or TGF-β in the NBC-10 cells. The blocking activity was found in the whey and the β-casein fractions of bovine milk. The relevance of these findings with regard to the previously reported plasma factor (PBB) with blocking activity on the expression of BLV in short-term PBMC cultures is discussed. Based on the information obtained in the present study we have standardized a reproducible and rapid assay system for the identification of factors that regulate the synthesis of BLVp24 in naturally infected neoplastic B cells.
publishDate 2009
dc.date.none.fl_str_mv 2009-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/95703
Gutiérrez, Silvina Elena; Ceriani, Maria Carolina; Juliarena, Marcela Alicia; Ferrer, Jorge F.; Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line; Elsevier Science; Veterinary Immunology And Immunopathology; 131; 3-4; 10-2009; 246-258
0165-2427
CONICET Digital
CONICET
url http://hdl.handle.net/11336/95703
identifier_str_mv Gutiérrez, Silvina Elena; Ceriani, Maria Carolina; Juliarena, Marcela Alicia; Ferrer, Jorge F.; Host soluble factors that regulate the synthesis of the major core protein of the bovine leukemia virus (BLV) in a naturally infected neoplastic B-cell line; Elsevier Science; Veterinary Immunology And Immunopathology; 131; 3-4; 10-2009; 246-258
0165-2427
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.vetimm.2009.04.017
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0165242709001573
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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