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Accession IconGSE11559

Identification of transcriptional changes induced by FHIT in lung cancer cells NCI-H460

Organism Icon Homo sapiens
Sample Icon 16 Downloadable Samples
Technology Badge Icon Affymetrix Human Genome U95 Version 2 Array (hgu95av2)

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Description
The FHIT gene, at 3p14.2, encompasses the common fragile site FRA3B and is frequently inactivated in primary tumors and cell lines of lung, head and neck, stomach, esophagus, cervix and breast cancer. In particular, loss of the FHIT protein is one of the most frequent alteration in lung tumors and pre-invasive lung lesions, suggesting a role for this gene in the early stages of lung carcinogenesis. Adenoviral-mediated restoration of FHIT expression in FHIT-negative cell lines results in cell cycle alteration, induction of apoptosis (through activation of the cytoplasmic apoptotic pathway) and regression of the tumorigenic phenotype. Taken together these observations support the hypothesis of a role for FHIT in human carcinogenesis, but little is known about its mechanism of action. Identification of transcriptional targets of FHIT is therefore critical to understand the pathways by which FHIT promotes growth arrest and apoptosis.
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