Linked Life Data

1836276

Source:http://linkedlifedata.com/resource/pubmed/id/1836276

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1992-1-22
pubmed:abstractText
We have developed two stable IL-2-dependent T-cell lines designated AKV-I and AKV-N from the enlarged spleens, respectively, of an AKV1 and an NFS mouse. Immunofluorescence staining with the appropriate monoclonal antibodies revealed that cells of the AKV-I cell line were alpha beta TCR-CD3+CD4-CD5-CD8+CD25+, whereas cells of the AKV-N cell line were alpha beta TCR-CD3+CD4-CD5+CD8-CD25+. A number of T-cell clones were developed from the AKV-I or AKV-N T-cell lines by limiting dilution and analysed by immunofluorescence. All clones tested were alpha beta TCR-CD3+CD4-CD25+. Certain T-cell clones expressed the CD5 antigen, whereas others expressed the CD8 antigen. The AKV-I cell line responded by proliferation to rIL2, rIL4, phorbol myristate acetate (PMA), PMA plus IL-4 and PMA plus PHA or Con A. In contrast, the AKV-N cell line did not respond to rIL-4 or rIL-4 plus PMA and exhibited only a modest proliferative response to PMA alone. Both AKV-I and AKV-N T-cell lines as well as a large number of T-cell clones examined were able to lyse cells of the PU5-IR murine cell line in the presence of the anti-CD3 (clone 145-2C11) MoAb, demonstrating their ability to mediate cytotoxicity in this system. Biochemical analysis of both AKV lines and a number of clones by immunoprecipitation with the anti-CD3 MoAb, followed by one-dimensional (either non-reducing or reducing) or two-dimensional (non-reducing/reducing) SDS-PAGE, revealed that the AKV lines and clones expressed a disulphide-linked dimer. Under non-reducing conditions, a band in the range of 75-85 kDa was observed and upon reduction it was resolved into two discrete polypeptide chains of 43-44 kDa and 48 kDa in certain AKV-I cells or 38 kDa and 42 kDa in certain AKV-N cells. In other T-cell clones or lines a broad band of 42-47 kDa was observed in AKV-I cells or 38-45 kDa in AKV-N cells. These results suggest the presence of different forms of disulphide-linked dimers on these cells. Northern blotting analysis using probes specific for the constant regions of the alpha-, beta-, gamma- and delta-chains of the T-cell antigen receptor revealed that all the AKV cell lines or clones tested expressed full-length alpha-, gamma- and delta-chain mRNA, whereas beta-chain mRNA was absent.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0300-9475
pubmed:author
pubmed:issnType
Print
pubmed:volume
34
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
779-94
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:1836276-Animals, pubmed-meshheading:1836276-Antigens, CD, pubmed-meshheading:1836276-Antigens, CD3, pubmed-meshheading:1836276-Antigens, Differentiation, T-Lymphocyte, pubmed-meshheading:1836276-Cell Line, pubmed-meshheading:1836276-Clone Cells, pubmed-meshheading:1836276-Cytotoxicity, Immunologic, pubmed-meshheading:1836276-Interleukin-2, pubmed-meshheading:1836276-Lymphocyte Activation, pubmed-meshheading:1836276-Mice, pubmed-meshheading:1836276-Precipitin Tests, pubmed-meshheading:1836276-RNA, Messenger, pubmed-meshheading:1836276-Receptors, Antigen, T-Cell, pubmed-meshheading:1836276-Receptors, Antigen, T-Cell, gamma-delta, pubmed-meshheading:1836276-Recombinant Proteins, pubmed-meshheading:1836276-T-Lymphocytes, pubmed-meshheading:1836276-Tetradecanoylphorbol Acetate
pubmed:year
1991
pubmed:articleTitle
IL-2-dependent murine T-cell lines and clones expressing gamma/delta T-cell antigen receptors. I. Functional and biochemical characterization.
pubmed:affiliation
Department of Immunology, University of Texas, Houston.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't