TY - JOUR A1 - Berger, Michael F. A1 - Levin, Joshua Z. A1 - Vijayendran, Krishna A1 - Sivachenko, Andrey A1 - Adiconis, Xian A1 - Maguire, Jared A1 - Johnson, Laura A. A1 - Robinson, James A1 - Verhaak, Roel G. A1 - Sougnez, Carrie A1 - Onofrio, Robert C. A1 - Ziaugra, Liuda A1 - Cibulskis, Kristian A1 - Laine, Elisabeth A1 - Barretina, Jordi A1 - Winckler, Wendy A1 - Fisher, David E. A1 - Getz, Gad A1 - Meyerson, Matthew A1 - Jaffe, David B. A1 - Gabriel, Stacey B. A1 - Lander, Eric S. A1 - Dummer, Reinhard A1 - Gnirke, Andreas A1 - Nusbaum, Chad A1 - Garraway, Levi A. T1 - Integrative analysis of the melanoma transcriptome Y1 - 2010/04/01 JF - Genome Research JO - Genome Research SP - 413 EP - 427 DO - 10.1101/gr.103697.109 VL - 20 IS - 4 UR - http://genome.cshlp.org/content/20/4/413.abstract N2 - Global studies of transcript structure and abundance in cancer cells enable the systematic discovery of aberrations that contribute to carcinogenesis, including gene fusions, alternative splice isoforms, and somatic mutations. We developed a systematic approach to characterize the spectrum of cancer-associated mRNA alterations through integration of transcriptomic and structural genomic data, and we applied this approach to generate new insights into melanoma biology. Using paired-end massively parallel sequencing of cDNA (RNA-seq) together with analyses of high-resolution chromosomal copy number data, we identified 11 novel melanoma gene fusions produced by underlying genomic rearrangements, as well as 12 novel readthrough transcripts. We mapped these chimeric transcripts to base-pair resolution and traced them to their genomic origins using matched chromosomal copy number information. We also used these data to discover and validate base-pair mutations that accumulated in these melanomas, revealing a surprisingly high rate of somatic mutation and lending support to the notion that point mutations constitute the major driver of melanoma progression. Taken together, these results may indicate new avenues for target discovery in melanoma, while also providing a template for large-scale transcriptome studies across many tumor types. ER -