Linked Life Data

6230244

Source:http://linkedlifedata.com/resource/pubmed/id/6230244

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1984-4-4
pubmed:abstractText
The ultraviolet light-induced fibrosarcoma 1591 is regularly rejected upon transplantation into young syngeneic mice; in rare instances, however, this tumor grows progressively and the tumors that develop are then heritably stable variant progressor tumors (1591-PRO tumors). In this study, we have induced transplantation resistance to 1591-PRO tumors and determined which antigens were recognized by mice that rejected these progressor tumors. We found that cytolytic T cells of such mice recognized a 1591-specific antigen that was present not only on all the independently derived 1591-PRO tumors but also on the parental regressor tumor (1591-RE). However, the cytolytic immune response of mice that rejected 1591-RE lysed 1591-RE tumor cells but not 1591-PRO tumor cells. Thus, the 1591-RE tumor seemed to express two antigens that were specific for tumors of the 1591 lineage, one that was lost and a second that was retained by 1591-PRO tumor cells. Mice challenged with 1591-R# tumor cells mounted a response to only one of the tumor-specific antigens which was therefore "immunodominant" over the other "immunorecessive" antigen. This immunorecessive antigen became the target of the immune response once the immunodominant antigen was lost. This "pecking order" interfered with the simultaneous recognition of two tumor-specific antigens and this mechanism may favor immune escape.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0014-2980
pubmed:author
pubmed:issnType
Print
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
181-7
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Pecking order among tumor-specific antigens.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't