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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2000-7-13
pubmed:abstractText
Interleukin (IL)-15 shares immuno-stimulatory properties with IL-2 and is a potent inducer of natural killer (NK) cell function. The major histocompatibility complex (MHC) class I-negative human small cell lung cancer (SCLC) cell line N592, engineered to express a modified IL-15 cDNA (N592/IL-15), secreted biologically active IL-15 (300-500 pg/ml), capable of boosting T-cell proliferation and NK activity 'in vitro'. The effect of IL-15 gene transfer on natural immunity 'in vivo' was assessed by xenotransplants in nude mice and compared with that of the IL-2 gene. N592 cells engineered with IL-2 (N592/IL-2) were promptly rejected, while N592/IL-15 displayed a significant delay in tumour growth and a slightly reduced take rate. However, in NK-depleted nude mice, N592/IL-15 displayed the same growth kinetics as unmodified N592 cells, and N592/IL-2 grew with slightly reduced kinetics. An impressive reactive cell infiltration, consisting mainly of macrophages and granulocytes, was associated with N592/IL-2 tumour rejection, while a more evident recruitment of NK cells was found in N592/IL-15 tumours. In both N592 transfected tumours, we found expression of chemoattractant molecules, such as granulocyte macrophage-colony stimulating factor (GM-CSF) and monocyte chemoattractant protein (MCP)-1, while macrophage inflammatory protein (MIP)-2 was produced by endothelial cells only in N592/IL-2 tumours. In this tumour, very few and severely damaged microvessels were found, while microvessels were numerous in N592/IL-15 tumours. The potent recruitment of NK cells mediated by IL-15 gene transfer suggests its possible therapeutic use in tumours lacking MHC class I.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0022-3417
pubmed:author
pubmed:copyrightInfo
Copyright 2000 John Wiley & Sons, Ltd.
pubmed:issnType
Print
pubmed:volume
191
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
193-201
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:10861581-Animals, pubmed-meshheading:10861581-Carcinoma, Small Cell, pubmed-meshheading:10861581-Chemokine CCL2, pubmed-meshheading:10861581-Female, pubmed-meshheading:10861581-Gene Transfer Techniques, pubmed-meshheading:10861581-Genes, MHC Class I, pubmed-meshheading:10861581-Graft Rejection, pubmed-meshheading:10861581-Granulocyte-Macrophage Colony-Stimulating Factor, pubmed-meshheading:10861581-Humans, pubmed-meshheading:10861581-Immunity, Innate, pubmed-meshheading:10861581-Interleukin-15, pubmed-meshheading:10861581-Interleukin-2, pubmed-meshheading:10861581-Killer Cells, Natural, pubmed-meshheading:10861581-Lung Neoplasms, pubmed-meshheading:10861581-Macrophage Inflammatory Proteins, pubmed-meshheading:10861581-Mice, pubmed-meshheading:10861581-Mice, Nude, pubmed-meshheading:10861581-Neoplasm Transplantation, pubmed-meshheading:10861581-Tumor Cells, Cultured
pubmed:year
2000
pubmed:articleTitle
Dissimilar anti-tumour reactions induced by tumour cells engineered with the interleukin-2 or interleukin-15 gene in nude mice.
pubmed:affiliation
Dipartimento di Oncologia e Neuroscienze, Università di Chieti, Italy.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't