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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1997-8-7
pubmed:abstractText
Bovine leukemia virus (BLV) is associated with enzootic bovine leukosis (EBL), which is the most common neoplastic disease of cattle. To clarify the way in which BLV-infected cattle progress from the asymptomatic stage to the lymphoma stage, we produced a monoclonal antibody (MAb) c143 which recognized a tumor-associated antigen (TAA) that is phosphorylated in the transformed state of BLV-infected B-lymphoid cells. Since the nature of c143 TAA was likely to be that of the major histocompatibility complex (MHC) class II antigens, we isolated cDNAs for bovine MHC (BoLA) class II a-chains and b-chains, produced transfectants that expressed a single type of BoLA class II molecules and analyzed them by flow cytometry with c143 MAb. The c143 MAb recognized the transfectant expressing BoLA-DR but not BoLA-DQ. However, the treatment of lymphocytes with c143 or anti-BoLA-DR MAb induced different effects. Although mixed lymphocyte reaction (MLR) was inhibited by the addition of anti-BoLA-DR MAb, the c143 MAb did not inhibit a proliferative response of T cells in MLR. Increased spontaneous proliferation of lymphocytes in healthy donors was obtained in the presence of c143 MAb but not anti-BoLA-DR MAb, and was much in lymphocytes from the carrier. Moreover, the patterns of immunohistological staining for c143 MAb in BLV-infected sheep showed distinguishing differences from those of anti-BoLA-DR MAbs.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0887-6924
pubmed:author
pubmed:issnType
Print
pubmed:volume
11 Suppl 3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
216-8
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
The role of tumor-associated antigen in bovine leukemia virus-induced lymphosarcoma.
pubmed:affiliation
Laboratory of Gene Technology and Safety, Institute of Physical and Chemical Research (RIKEN), Ibaraki, Japan.
pubmed:publicationType
Journal Article