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  • Title: Identification of the expression profile of apoptotic esophageal cancer cells by adenoviral-fragile histidine triad treatment.
    Author: Mimori K, Ishii H, Inoue H, Barnard GF, Mori M.
    Journal: J Gastroenterol Hepatol; 2008 Dec; 23 Suppl 2():S205-9. PubMed ID: 19120899.
    Abstract:
    BACKGROUND: The fragile histidine triad (FHIT) functions as a tumor suppressor, and giving adenoviral-FHIT (Ad-FHIT) is thus expected to be clinically beneficial. Much attention has recently been focused on which genes are commonly regulated by Ad-FHIT, and which genes are dominant in Ad-FHIT-induced apoptotic cells. METHODS: Ad-FHIT apoptosis-induced cells (H1299 and TE4) and non-apoptosis-induced cells (TE2) were used in the current experiments. The total RNA extracted from Ad-FHIT or control was labeled with Cy3-dCTP or Cy5-dCTP and hybridized with 19,192 genes on a chip. A microarray analysis for each gene was carried out with high reproducibility provided by seven independent experiments and duplicated oligos on a chip. RESULTS: We listed the upregulated genes based on the TE4:TE2 expression ratio, such as c-Src, Jak-1, and sialyltransferase, which are expected to be target pathways as well as the downregulated genes, including CASP8 and CASP10, after Ad-FHIT treatment in esophageal cancer. CONCLUSIONS: The current microarray analysis indicated that the apoptosis of esophageal cancer observed after giving Ad-FHIT was possibly induced by activation of the c-Src gene and inactivation of the CASP8 gene.
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