Scientific Publications

Homozygous deletions and chromosome amplifications in human lung carcinomas revealed by single nucleotide polymorphism array analysis

Publication TypeJournal Article
AuthorsZhao, Xiaojun, Weir Barbara A., LaFramboise Thomas, Lin Ming, Beroukhim Rameen, Garraway Levi, Beheshti Javad, Lee Jeffrey C., Naoki Katsuhiko, Richards William G., Sugarbaker David, Chen Fei, Rubin Mark A., and J
AbstractGenome-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 approximately 115,000 single nucleotide polymorphism 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. High-level 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 high-level 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.
Year of Publication2005
JournalCancer Research
Volume65
Issue13
Pages5561 - 70
Date Published (YYYY/MM/DD)2005/07/01/
ISBN Number0008-5472
KeywordsCancer, Carcinoma, Cell Line, Chromosome Aberrations, Chromosome Deletion, Cyclin-Dependent Kinase 4, Cyclin-Dependent Kinase 6, Cyclin-Dependent Kinases, DNA, Gene Amplification, Gene Dosage, Genome, H, Neoplasm, Non-Small-Cell Lung, Small Cell, Tumor