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  4. Global analysis of gene expression in invasion by a lung cancer model
 
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Global analysis of gene expression in invasion by a lung cancer model

Journal
Cancer Research
Journal Volume
61
Journal Issue
13
Pages
5223-5230
Date Issued
2001
Author(s)
Chen J.J.W.
Peck K.
Hong T.-M.
Yang S.-C.
Sher Y.-P.
JIN-YUAN SHIH  
Wu R.
Cheng J.-L.
Roffler S.R.
Wu C.-W.
PAN-CHYR YANG  
URI
https://www.scopus.com/inward/record.uri?eid=2-s2.0-0035394134&partnerID=40&md5=eb636e7197834ea9f390fe56f1437797
https://scholars.lib.ntu.edu.tw/handle/123456789/512756
Abstract
Metastasis is a complicated multistep process that involves interactions between cancer cells and their surrounding microenvironments. Previously, we have established a series of lung adenocarcinoma cell lines with varying degrees of invasiveness. Tracheal graft assay confirmed that cell lines with higher in vitro invasiveness had greater in vivo invasive potential. In this study, we used these model cell lines to identify invasion-associated genes using cDNA microarray with colorimetric detection. A more invasive subline, CL 1-5-F 4, derived from metastatic lung tumor of severe combined immunodeficient mice inoculated with CL 1-5 cells, was combined with CL 1-0, CL 1-1, and CL 1-5 in cDNA microarray screening. cDNA microarray membranes, each containing 9600 nonredundant expressed sequence tag clones, were used to identify differentially expressed genes in these cell lines. For statistical analysis, self-organizing map algorithm was performed to identify the expression patterns. Positive correlation between gene expression levels and cell line invasiveness was found in 2.9% of the 9600 putative genes. On the other hand, negative correlation was found in 3.3% of the genes. The trends of expression of some of the genes were also confirmed by Northern hybridization and flow cytometry. Our data demonstrated that genes related to cell adhesion, motility, angiogenesis, signal transduction, and some other expressed sequence tag genes may play significant roles in the metastasis process. These results substantiate the model system with which one can identify invasion-associated genes by using cDNA microarray and cancer cell lines of different invasiveness. This technique may allow us to explore complex interactions between multiple genes that orchestrate the process of cancer metastasis.
SDGs

[SDGs]SDG3

Other Subjects
angiogenesis; animal cell; animal tissue; article; cancer cell culture; cancer invasion; cancer model; cell adhesion; cell motility; colorimetry; DNA microarray; expressed sequence tag; human; human cell; lung cancer; metastasis; mouse; nonhuman; priority journal; rat; signal transduction; technique; Adenocarcinoma; Animals; Colorimetry; Gene Expression; Humans; Lung Neoplasms; Mice; Mice, SCID; Multigene Family; Neoplasm Invasiveness; Neoplasm Metastasis; Neoplasm Transplantation; Oligonucleotide Array Sequence Analysis; Rats; Rats, Sprague-Dawley; Transplantation, Heterologous; Tumor Cells, Cultured
Type
journal article

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