Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2005-4-5
pubmed:abstractText
A suitable model analyzing the behavior of well-differentiated squamous cell carcinoma has not yet been established. We tried to establish such a system using a reconstructed oral mucosa, in which T3M-1 squamous cell carcinoma cells were cultured on 3T3 fibroblast-containing collagen gel. Fibroblasts promoted the stratification and keratinization of T3M-1 cells. During growth, the Ki-67 index of T3M-1 cells with fibroblasts was higher than that of T3M-1 cells alone. Fibroblasts increased the expression of involucrin, a differentiating marker of keratinocytes, in T3M-1 cells. They also promoted the invasion of T3M-1 cells into the gel. When T3M-1 cells alone were cultured in a fibroblast-conditioned (FC) medium, the fibroblast-induced phenomena mentioned above were almost replicated. In addition, epidermal growth factqr (EGF) promoted T3M-1 cells growth, but not the invasion. cDNA microarray analysis showed that FC medium increased the expression of EGF receptor and several other mRNAs of T3M-1 cells. The data suggest that T3M-1 cells, under cancer-stromal fibroblast interaction, undergo invasive growth with their well-differentiated squamous phenotype, and that this interaction may be mediated partly by soluble molecules (e.g., EGF) in an autocrine or paracrine pathway. Our system will probably provide a useful model for analyzing the biological behavior of well-differentiated squamous cell carcinoma.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0344-0338
pubmed:author
pubmed:issnType
Print
pubmed:volume
201
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
27-35
pubmed:meshHeading
pubmed-meshheading:15807308-3T3 Cells, pubmed-meshheading:15807308-Animals, pubmed-meshheading:15807308-Carcinoma, Squamous Cell, pubmed-meshheading:15807308-Cell Differentiation, pubmed-meshheading:15807308-Cell Division, pubmed-meshheading:15807308-Coculture Techniques, pubmed-meshheading:15807308-Collagen, pubmed-meshheading:15807308-Culture Media, Conditioned, pubmed-meshheading:15807308-Epidermal Growth Factor, pubmed-meshheading:15807308-Fibroblasts, pubmed-meshheading:15807308-Gels, pubmed-meshheading:15807308-Hepatocyte Growth Factor, pubmed-meshheading:15807308-Humans, pubmed-meshheading:15807308-Ki-67 Antigen, pubmed-meshheading:15807308-Mice, pubmed-meshheading:15807308-Mouth Neoplasms, pubmed-meshheading:15807308-Neoplasm Invasiveness, pubmed-meshheading:15807308-Oligonucleotide Array Sequence Analysis, pubmed-meshheading:15807308-Protein Precursors, pubmed-meshheading:15807308-Receptors, Interleukin-1, pubmed-meshheading:15807308-Stromal Cells
pubmed:year
2005
pubmed:articleTitle
A new in vitro model for analyzing the biological behavior of well-differentiated squamous cell carcinoma.
pubmed:affiliation
Department of Pathology and Biodefense, Division of Cellular and Molecular Pathology, Faculty of Medicine, Saga University, Saga 849-8501, Japan. satos3@med.saga-u.ac.jp
pubmed:publicationType
Journal Article