Abstract：
:In order to understand the differences and similarities between tumorigenic and non-tumorigenic HeLaxhuman fibroblast hybrids, gene expression profiles were examined with synthetic oligonucleotide arrays containing nearly 7000 gene probe sets. We used two pairs of genetically related hybrids, each pair representing individual clones of non-tumorigenic and tumorigenic segregant hybrids, respectively. Analysis of six possible comparisons, utilizing two algorithms, identified 204 genes with differential expression. The greater number of differentially expressed genes was observed when non-tumorigenic hybrids were compared with tumorigenic segregants. Fifteen and 14 genes, respectively, were consistently found to be differentially expressed in non-tumorigenic and tumorigenic cells. Among those 29 differentially expressed genes, three (intestinal alkaline phosphatase, caveolin-1, and solute carrier family2, member3) have been reported previously to be associated with the tumorigenic phenotype, using the same hybrid pairs. In addition, among the genes previously detected by differential display, 78% of them exhibited more than 5-fold change, demonstrating a high consistency between the two methods of differential gene expression. These findings suggest that synthetic oligonucleotide arrays are a powerful and highly reproducible tool to identify those genes whose expression is associated with certain phenotypes.
journal_name
Cancer Lettjournal_title
Cancer lettersauthors
Nishizuka S,Winokur ST,Simon M,Martin J,Tsujimoto H,Stanbridge EJdoi
10.1016/s0304-3835(01)00437-2keywords:
subject
Has Abstractpub_date
2001-04-26 00:00:00pages
201-9issue
2eissn
0304-3835issn
1872-7980pii
S0304383501004372journal_volume
165pub_type
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