Linked Life Data

3082649

Source:http://linkedlifedata.com/resource/pubmed/id/3082649

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1986-5-12
pubmed:abstractText
In this report we have analyzed cell cycle-related fluctuations of both quantity and density of the T cell differentiation antigens, CD3 (T3), CD4 (T4) and CD8 (T8), as well as the major histocompatibility complex (MHC) antigens on the cell surface of activated T cells. Phytohemagglutinin-activated T cells cultured for 3 days with or without conditioned medium or for 10 days with conditioned medium and mixed lymphocyte culture-derived T cell clones were used for the analysis. Correlated measurements of the surface antigen quantity (immunofluorescence), DNA content (dye Hoechst 33342), and cell size (light scatter), not influenced by synchrony induction methods and cell fixation, were performed by dual-beam flow cytometry. Our results demonstrate that the T cell differentiation antigens, CD3, CD4 and CD8, and class I MHC antigens are increased in density in the G1 phase for all activated T cells tested. In contrast, class II MHC antigens are increased in density in the G2 phase of activated T cells maintained with conditioned medium. Since it is known that the T cell differentiation antigens and class I MHC antigens on activated T cells are necessary for proliferation of T cells, our study suggests that this effect is more significant in the G1 phase. The cell cycle changes in expression of class I and class II MHC antigens, but not of the T cell differentiation antigens, appear to be mediated by soluble factors, probably including interferon-gamma, which could produce a differential increase of class I and class II MHC antigens on G2 phase cells.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0014-2980
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
248-51
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Differential expression of T cell differentiation antigens and major histocompatibility antigens on activated T cells during the cell cycle.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't