Abstract

Gene fusions represent an important class of somatic alterations in cancer. We systematically investigated fusions in 9,624 tumors across 33 cancer types using multiple fusion calling tools. We identified a total of 25,664 fusions, with a 63% validation rate. Integration of gene expression, copy number, and fusion annotation data revealed that fusions involving oncogenes tend to exhibit increased expression, whereas fusions involving tumor suppressors have the opposite effect. For fusions involving kinases, we found 1,275 with an intact kinase domain, the proportion of which varied significantly across cancer types. Our study suggests that fusions drive the development of 16.5% of cancer cases and function as the sole driver in more than 1% of them. Finally, we identified druggable fusions involving genes such as TMPRSS2, RET, FGFR3, ALK, and ESR1 in 6.0% of cases, and we predicted immunogenic peptides, suggesting that fusions may provide leads for targeted drug and immune therapy. Gao et al. analyze a 9,624 sample TCGA cohort with 33 cancer types to detect gene fusion events. They provide a landscape of fusion events detected, relate fusions to gene expression, focus on kinase fusion structures, examine mutually exclusive mutation and fusion patterns, and highlight fusion druggability.

Original languageEnglish (US)
Pages (from-to)227-238.e3
JournalCell Reports
Volume23
Issue number1
DOIs
StatePublished - Apr 3 2018

Keywords

  • RNA
  • cancer
  • fusion
  • gene fusions
  • translocation

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology

MD Anderson CCSG core facilities

  • Bioinformatics Shared Resource

Fingerprint

Dive into the research topics of 'Driver Fusions and Their Implications in the Development and Treatment of Human Cancers'. Together they form a unique fingerprint.

Cite this