Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1987-5-6
pubmed:abstractText
The addition of inactivated preparations of purified human T cell lymphotropic virus (HTLV-III) was found to inhibit normal human lymphocyte phytohemagglutinin (PHA)-induced blastogenesis but had no effect on concanavalin A (Con A), pokeweek mitogen, or allogeneic stimulation. The inhibition was concentration-dependent and also dependent on adding the virus preparation before or at the same time as PHA. The CD4 molecule is the receptor for HTLV-III binding. Immunopurified large envelope protein (gp120) from HTLV-III was found to bind to the CD4 molecule and also inhibited PHA-induced lymphocyte blastogenesis. These results suggest that the gp120 viral protein may alter immune function by binding to the CD4 molecule, which in turn serves as an "off" signal to lymphocyte response to PHA stimulation. Alternatively, by binding to the CD4 molecule, gp120 may interfere with the interaction of this molecule with class II histocompatibility antigens on accessory cells, thus selectively suppressing PHA response.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
138
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2640-4
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
HTLV-III large envelope protein (gp120) suppresses PHA-induced lymphocyte blastogenesis.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.