Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1995-6-8
pubmed:abstractText
In recent years, several studies have documented that melanoma cell lines produce various cytokine/growth factors and their receptors. Since cell lines can acquire altered properties, such as changes in growth requirements, we studied constitutive cytokine gene expression in melanoma cells from 20 fresh surgical specimens: seven primary melanomas and 13 metastases (12 lymph-node metastases and one subcutaneous metastasis). After tumour cell isolation by discontinuous gradient, we tested for mRNA expression by means of reverse-transcriptase polymerase chain reaction. Most melanoma cells tested expressed growth factors: basic fibroblast growth factor (bFGF), interleukin (IL)1 alpha, IL-1 beta, IL-6 and IL-8 and, in five cases out of 20, expressed granulocyte-macrophage colony-stimulating factor (GM-CSF) (two out of five were also positive for GM-CSF receptor). Our results do not point to a direct correlation between cytokine expression and clinical stage at the time when the bioptic specimen was obtained. However, they allow us to suggest a possible metastatic tumour cell phenotype, in which autogenous GM-CSF expression could modulate immune response against the tumour cell itself or could potentiate metastatic colonization properties.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0960-8931
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:geneSymbol
GM-CSF, GM-CSF receptor &agr;, bFGF
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
41-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:7734955-Adult, pubmed-meshheading:7734955-Aged, pubmed-meshheading:7734955-Aged, 80 and over, pubmed-meshheading:7734955-Base Sequence, pubmed-meshheading:7734955-Cytokines, pubmed-meshheading:7734955-Female, pubmed-meshheading:7734955-Granulocyte-Macrophage Colony-Stimulating Factor, pubmed-meshheading:7734955-Humans, pubmed-meshheading:7734955-Interleukin-1, pubmed-meshheading:7734955-Lymph Nodes, pubmed-meshheading:7734955-Male, pubmed-meshheading:7734955-Melanoma, pubmed-meshheading:7734955-Middle Aged, pubmed-meshheading:7734955-Molecular Sequence Data, pubmed-meshheading:7734955-Polymerase Chain Reaction, pubmed-meshheading:7734955-RNA, Messenger, pubmed-meshheading:7734955-RNA, Neoplasm, pubmed-meshheading:7734955-Skin Neoplasms, pubmed-meshheading:7734955-Tumor Cells, Cultured
pubmed:year
1995
pubmed:articleTitle
Cytokine expression in human primary and metastatic melanoma cells: analysis in fresh bioptic specimens.
pubmed:affiliation
Institute of Biology and Genetics, University of Genoa, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't