Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1982-4-22
pubmed:abstractText
The immunoreactivity of lymphocytes from mice bearing large tumors was investigated. As compared to normal lymphocytes, lymphocytes from tumor bearers manifested a lessened proliferative response to T-cell mitogens and were less capable of destroying syngeneic tumor target cells. However, the impaired reactivity of these lymphocytes was improved significantly after washing repeatedly in tissue culture medium in vitro. The increase in cytolytic activity was tumor specific. A membrane-associated suppressive substance was detected in the washing medium which inhibited the cytotoxicity of washed lymphocytes. The effect of suppressive substance was tumor specific and sensitive to treatment with protein A and anti-immunoglobulin antibody, indicating that the suppressive substance contained immunoglobulin. The present findings suggest that a membrane-associated suppressive substance(s) may be in part responsible for the diminished immune responsiveness of lymphocytes from animals bearing large tumors.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
416-20
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Association of impaired immune responsiveness of lymphocytes from animals bearing large tumors with a membrane-bound suppressive substance.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.