Integrated Molecular Characterization of Uterine Carcinosarcoma

Cancer Cell. 2017 Mar 13;31(3):411-423. doi: 10.1016/j.ccell.2017.02.010.

Abstract

We performed genomic, epigenomic, transcriptomic, and proteomic characterizations of uterine carcinosarcomas (UCSs). Cohort samples had extensive copy-number alterations and highly recurrent somatic mutations. Frequent mutations were found in TP53, PTEN, PIK3CA, PPP2R1A, FBXW7, and KRAS, similar to endometrioid and serous uterine carcinomas. Transcriptome sequencing identified a strong epithelial-to-mesenchymal transition (EMT) gene signature in a subset of cases that was attributable to epigenetic alterations at microRNA promoters. The range of EMT scores in UCS was the largest among all tumor types studied via The Cancer Genome Atlas. UCSs shared proteomic features with gynecologic carcinomas and sarcomas with intermediate EMT features. Multiple somatic mutations and copy-number alterations in genes that are therapeutic targets were identified.

Keywords: EMT; TGGA; The Cancer Genome Atlas; UCS; endometrial cancer; epithelial-to-mesenchymal transition; gynecologic cancer; gynecologic oncology; translational science; uterine carcinosarcoma.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, N.I.H., Extramural

MeSH terms

  • Carcinosarcoma / genetics*
  • Carcinosarcoma / pathology
  • DNA Copy Number Variations
  • Epithelial-Mesenchymal Transition
  • Female
  • Humans
  • Mutation
  • Uterine Neoplasms / genetics*
  • Uterine Neoplasms / pathology