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Molecular Classification of Ependymal Tumors across All CNS Compartments, Histopathological Grades, and Age Groups.

Kristian W Pajtler | Hendrik Witt | Martin Sill | David T W Jones | Volker Hovestadt | Fabian Kratochwil | Khalida Wani | Ruth Tatevossian | Chandanamali Punchihewa | Pascal Johann | Jüri Reimand | Hans-Jörg Warnatz | Marina Ryzhova | Steve Mack | Vijay Ramaswamy | David Capper | Leonille Schweizer | Laura Sieber | Andrea Wittmann | Zhiqin Huang | Peter van Sluis | Richard Volckmann | Jan Koster | Rogier Versteeg | Daniel Fults | Helen Toledano | Smadar Avigad | Lindsey M Hoffman | Andrew M Donson | Nicholas Foreman | Ekkehard Hewer | Karel Zitterbart | Mark Gilbert | Terri S Armstrong | Nalin Gupta | Jeffrey C Allen | Matthias A Karajannis | David Zagzag | Martin Hasselblatt | Andreas E Kulozik | Olaf Witt | V Peter Collins | Katja von Hoff | Stefan Rutkowski | Torsten Pietsch | Gary Bader | Marie-Laure Yaspo | Andreas von Deimling | Peter Lichter | Michael D Taylor | Richard Gilbertson | David W Ellison | Kenneth Aldape | Andrey Korshunov | Marcel Kool | Stefan M Pfister
Cancer cell | 2015

Ependymal tumors across age groups are currently classified and graded solely by histopathology. It is, however, commonly accepted that this classification scheme has limited clinical utility based on its lack of reproducibility in predicting patients' outcome. We aimed at establishing a uniform molecular classification using DNA methylation profiling. Nine molecular subgroups were identified in a large cohort of 500 tumors, 3 in each anatomical compartment of the CNS, spine, posterior fossa, supratentorial. Two supratentorial subgroups are characterized by prototypic fusion genes involving RELA and YAP1, respectively. Regarding clinical associations, the molecular classification proposed herein outperforms the current histopathological classification and thus might serve as a basis for the next World Health Organization classification of CNS tumors.

Pubmed ID: 25965575 RIS Download

Research resources used in this publication

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Associated grants

  • Agency: NCATS NIH HHS, United States
    Id: UL1 TR001445
  • Agency: NCI NIH HHS, United States
    Id: R01 CA129541
  • Agency: NCI NIH HHS, United States
    Id: P30 CA016087
  • Agency: NCATS NIH HHS, United States
    Id: UL 1 TR000038
  • Agency: NCI NIH HHS, United States
    Id: R01 CA121941
  • Agency: NCI NIH HHS, United States
    Id: P30CA016087

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