期刊
CANCER RESEARCH
卷 64, 期 1, 页码 40-47出版社
AMER ASSOC CANCER RESEARCH
DOI: 10.1158/0008-5472.CAN-03-1022
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资金
- NCI NIH HHS [CA70354, CA60948, CA46592] Funding Source: Medline
- NATIONAL CANCER INSTITUTE [R29CA060948, R01CA070354, P30CA046592, R01CA060948] Funding Source: NIH RePORTER
Gene amplification is an important mechanism of oncogene activation in breast and other cancers. Characterization of amplified regions of the genome in breast cancer has led to the identification of important oncogenes including erbB-2/HER-2, C-MYC, and fibroblast growth factor receptor (FGFR) 2. Chromosome 8p11-p12 is amplified in 10-15% of human breast cancers. The putative oncogene FGFR1 localizes to this region; however, we show evidence that FGFR inhibition fails to slow growth of three breast cancer cell lines with 8p11-p12 amplification. We present a detailed analysis of this amplicon in three human breast cancer cell lines using comparative genomic hybridization, traditional Southern and Northern analysis, and chromosome 8 cDNA microarray expression profiling. This study has identified new candidate oncogenes within the 8p11-p12 region, supporting the hypothesis that genes other than FGFR1 may contribute to oncogenesis in breast cancers with proximal 8p amplification.
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