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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Identification of a novel gene, GASC1, within an amplicon at 9p23-24 frequently detected in esophageal cancer cell lines.

In a recent study, we identified frequent amplification of DNA copy number at chromosome 9p23-24 in cell lines derived from esophageal squamous cell carcinomas (ESCs), using comparative genomic hybridization. Because amplified regions often harbor oncogenes and/or other tumor-associated genes, and because 9p23-24 amplification had been reported in various other types of cancers, we used fluorescence in situ hybridization and Southern blot analysis to map the 9p23-24 amplicon. We then screened target genes/transcripts present within this amplicon by Northern blotting. With this strategy, we successfully cloned a novel gene, designated gene amplified in squamous cell carcinoma 1 (GASC1), that was amplified and overexpressed in several ESC cell lines. The deduced amino acid sequence of GASC1 contains two PHD-finger motifs and a PX domain. PHD-finger motifs are found in nuclear proteins that participate in chromatin-mediated transcriptional regulation and are present in a number of proto-oncogenes. Our findings suggest that overexpressed GASC1 may play an important role in the development and/or progression of various types of cancer including ESC.[1]

References

  1. Identification of a novel gene, GASC1, within an amplicon at 9p23-24 frequently detected in esophageal cancer cell lines. Yang, Z.Q., Imoto, I., Fukuda, Y., Pimkhaokham, A., Shimada, Y., Imamura, M., Sugano, S., Nakamura, Y., Inazawa, J. Cancer Res. (2000) [Pubmed]
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