Journal
CANCER RESEARCH
Volume 65, Issue 13, Pages 5561-5570Publisher
AMER ASSOC CANCER RESEARCH
DOI: 10.1158/0008-5472.CAN-04-4603
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Funding
- NCI NIH HHS [P50CA70907, T32 CA009172, 2P30 CA06516-39] Funding Source: Medline
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Genome-wide copy number changes were analyzed in 70 primary human lung carcinoma specimens and 31 cell lines derived from human lung carcinomas, with high-density arrays representing similar to 115,000 single nucleotide polyrnorphism loci. In addition to previously characterized loci, two regions of homozygous deletion were found, one near the PTPRD locus on chromosome segment 9p23 in four samples representing both small cell lung carcinoma (SCLC) and non-small cell lung carcinoma (NSCLC) and the second on chromosome segment 3q25 in one sample each of NSCLC and SCLC. Highlevel amplifications were identified within chromosome segment 8q12-13 in two SCLC specimens, 12p11 in two NSCLC specimens and 22q11 in four NSCLC specimens. Systematic copy number analysis of tyrosine kinase genes identified highlevel amplification of EGFR in three NSCLC specimens, FGFR1 in two specimens and ERBB2 and MET in one specimen each. EGFR amplification was shown to be independent of kinase domain mutational status.
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