Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
15
pubmed:dateCreated
1999-9-7
pubmed:abstractText
Interleukin (IL) 17 is a proinflammatory cytokine secreted mainly by activated human memory CD4 T cells that induces IL-6, IL-8, and nitric oxide. Because IL-6 and IL-8 have been implicated in the pathogenesis of cervical cancer, we investigated the action of IL-17 on human cervical tumor cell lines in vitro and in vivo. We showed that in vitro, IL-17 increases IL-6 and IL-8 secretion by cervical carcinoma cell lines at both protein and mRNA levels. No direct effect of IL-17 on in vitro proliferation of cervical tumor cell lines could be demonstrated. However, two cervical cell lines transfected with a cDNA encoding IL-17 exhibited a significant increase in tumor size as compared to the parent tumor when transplanted in nude mice. This enhanced tumor growth elicited by IL-17 was associated with increased expression of IL-6 and macrophage recruitment at the tumor site. A potential role of IL-17 in modulation of the human cervical tumor phenotype was also supported by its expression on the cervical tumor in patients with CD4 infiltration. IL-17 therefore behaves like a T-cell-specific cytokine with paradoxical tumor-promoting activity. This may partially explain previous reports concerning the deleterious effect of CD4 T cells in cancer.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
59
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3698-704
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:10446984-Animals, pubmed-meshheading:10446984-CD4-Positive T-Lymphocytes, pubmed-meshheading:10446984-Carcinogens, pubmed-meshheading:10446984-Female, pubmed-meshheading:10446984-Gene Expression Regulation, Neoplastic, pubmed-meshheading:10446984-HeLa Cells, pubmed-meshheading:10446984-Humans, pubmed-meshheading:10446984-Interleukin-17, pubmed-meshheading:10446984-Interleukin-6, pubmed-meshheading:10446984-Interleukin-8, pubmed-meshheading:10446984-Male, pubmed-meshheading:10446984-Melanoma, pubmed-meshheading:10446984-Mice, pubmed-meshheading:10446984-Mice, Nude, pubmed-meshheading:10446984-Neoplasm Proteins, pubmed-meshheading:10446984-Neoplasm Transplantation, pubmed-meshheading:10446984-Recombinant Fusion Proteins, pubmed-meshheading:10446984-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:10446984-T-Lymphocytes, pubmed-meshheading:10446984-Transfection, pubmed-meshheading:10446984-Tumor Cells, Cultured, pubmed-meshheading:10446984-Uterine Cervical Neoplasms
pubmed:year
1999
pubmed:articleTitle
Interleukin 17, a T-cell-derived cytokine, promotes tumorigenicity of human cervical tumors in nude mice.
pubmed:affiliation
Unité d'Immunologie Clinique, INSERM U 225 and Université Pierre et Marie Curie, Paris, France. etartour@curie.fr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't