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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
13
pubmed:dateCreated
1997-1-2
pubmed:abstractText
An immunogenic murine fibrosarcoma cell line was genetically modified to express and produce the human RANTES chemokine stably. In in vitro chemotaxis assays purified recombinant human RANTES as well as human RANTES secreted by the modified murine tumor cells were strongly chemoattractant for mouse CD8+ /Thy-1+ tumor-infiltrating lymphocytes (TIL). RANTES production did not alter the growth of these cytokine gene-modified tumor cells in vitro, but injection of RANTES-secreting cells resulted in the abolition of the ability of those cells to form solid tumors in vivo. The growth of tumors could be restored by co-administration of monoclonal antibodies that inhibit the function of various subsets of immune cells. For example, depletion of CD8+ T cells by antibody administration resulted in complete restoration of solid tumor formation by RANTES-secreting cells, whereas depletion of the CD4+ T cell population resulted in a partial restoration of tumor formation. Additionally, administration of an anti-CR3 monoclonal antibody known to inhibit the in vivo migration of macrophages also completely restored the tumorigenicity of RANTES-secreting fibrosarcoma cells. Thus, the human RANTES chemokine can abolish tumorigenicity of an immunogenic fibrosarcoma in an in vivo murine model, and this process is mediated by various subpopulations of immune effector cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1043-0342
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1545-53
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:8864755-Animals, pubmed-meshheading:8864755-Antibodies, Monoclonal, pubmed-meshheading:8864755-CD4-Positive T-Lymphocytes, pubmed-meshheading:8864755-CD8-Positive T-Lymphocytes, pubmed-meshheading:8864755-Cell Division, pubmed-meshheading:8864755-Chemokine CCL5, pubmed-meshheading:8864755-Chemokines, pubmed-meshheading:8864755-Chemotactic Factors, pubmed-meshheading:8864755-Chemotaxis, pubmed-meshheading:8864755-Female, pubmed-meshheading:8864755-Gene Therapy, pubmed-meshheading:8864755-Gene Transfer Techniques, pubmed-meshheading:8864755-Humans, pubmed-meshheading:8864755-Mice, pubmed-meshheading:8864755-Mice, Inbred Strains, pubmed-meshheading:8864755-Neoplasms, Experimental, pubmed-meshheading:8864755-Recombinant Proteins, pubmed-meshheading:8864755-Tumor Cells, Cultured
pubmed:year
1996
pubmed:articleTitle
RANTES secretion by gene-modified tumor cells results in loss of tumorigenicity in vivo: role of immune cell subpopulations.
pubmed:affiliation
Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
pubmed:publicationType
Journal Article