Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1999-4-29
pubmed:abstractText
The systemic adoptive transfer of activated T cells, derived from tumor-draining lymph nodes (LNs), mediates the regression of established tumors. In this study, the requirement of cell adhesion molecules, CD11a/CD18 (LFA-1), CD54 (ICAM-1), CD49d/CD29 (VLA-4), and CD106 (VCAM-1), for T cell infiltration into tumors and antitumor function was investigated. Administration of anti-CD11a mAb completely abrogated the efficacy of adoptive immunotherapy for both intracranial and pulmonary metastatic MCA 205 fibrosarcomas. In contrast, adoptive immunotherapy was effective in animals treated with anti-CD49d mAb, anti-CD106 mAb, anti-CD54 mAb, or in CD54 knockout recipients. Trafficking of transferred cells to the intracranial tumor was not affected by any of the mAb. However, the tumor-specific secretion of IFN-gamma by activated LN T cells was suppressed by anti-CD11a mAb or anti-CD54 mAb. To account for the different effects of CD11a and CD54 blockade in vivo, an additional CD11a/CD18 ligand, CD102 (ICAM-2), was demonstrated on tumor-associated macrophages but not on tumor cells. These results show that CD11a mediates a critical function in interactions between effector T cells, tumor cells, and host accessory cells in situ leading to tumor regression.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0008-8749
pubmed:author
pubmed:copyrightInfo
Copyright 1999 Academic Press.
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
192
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
122-32
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Critical role of CD11a (LFA-1) in therapeutic efficacy of systemically transferred antitumor effector T cells.
pubmed:affiliation
Center for Surgery Research, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.