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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3-4
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pubmed:dateCreated |
1990-4-13
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pubmed:abstractText |
Cytochemical and immunological markers were used to phenotype the bovine lymphoblastoid cell lines BL-3*, EBL-1, and EBL-2. Southern blot experiments were also performed to test these lines for the presence of proviral bovine leukemia virus (BLV). The BL-3* cell line, originally derived from a case of sporadic bovine leukosis (non BLV-associated) but later infected with BLV in vitro, was found to contain BLV provirus and expressed the BLV-encoded envelope glycoprotein BLV-gp51. BL-3* cells express surface IgM and cytoplasmic IgM as well as class II antigens, and greater than 95% were negative for the T-cell markers B26A, sheep erythrocyte (E) receptors and alpha-naphthyl butyrate esterase (alpha-NB). BL-3* thus appears to be B-cell derived. EBL-1 and EBL-2 were derived from cows with enzootic bovine lymphosarcoma; however, these cell lines were found not to be infected with BLV. Phenotypically, EBL-1 and EBL-2 are mature T-cells, as they were positive for the B26A epitope, alpha-NB, and E receptors. These cell lines also express class II major histocompatibility antigens, indicating an activated state. The T-cell phenotype of EBL-1 and EBL-2 raises interesting questions concerning the possible role of other retroviruses and non BLV-infected transformed T-cells in the development of EBL tumors.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
|
pubmed:issn |
0165-2427
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
23
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
293-307
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2560863-Animals,
pubmed-meshheading:2560863-Biological Markers,
pubmed-meshheading:2560863-Cattle,
pubmed-meshheading:2560863-Cell Differentiation,
pubmed-meshheading:2560863-Cell Line,
pubmed-meshheading:2560863-Histocytochemistry,
pubmed-meshheading:2560863-Leukemia Virus, Bovine,
pubmed-meshheading:2560863-Lymphocytes,
pubmed-meshheading:2560863-Phenotype
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pubmed:year |
1989
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pubmed:articleTitle |
Phenotypic characterization of bovine lymphoblastoid cell lines.
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pubmed:affiliation |
Department of Animal Sciences, University of Illinois, Urbana 61801.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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