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Therapeutic implications of improved molecular diagnostics for rare CNS embryonal tumor entities: Results of an international, retrospective study

  • Katja von Hoff*
  • , Christine Haberler
  • , Felix Schmitt-Hoffner
  • , Elizabeth Schepke
  • , Teresa de Rojas
  • , Sandra Jacobs
  • , Michal Zapotocky
  • , David Sumerauer
  • , Marta Perek-Polnik
  • , Christelle Dufour
  • , Dannis van Vuurden
  • , Irene Slavc
  • , Johannes Gojo
  • , Jessica C. Pickles
  • , Nicolas U. Gerber
  • , Maura Massimino
  • , Maria Joao Gil-da-Costa
  • , Miklos Garami
  • , Ella Kumirova
  • , Astrid Sehested
  • David Scheie, Ofelia Cruz, Lucas Moreno, Jaeho Cho, Bernward Zeller, Niels Bovenschen, Michael Grotzer, Daniel Alderete, Matija Snuderl, Olga Zheludkova, Andrey Golanov, Konstantin Okonechnikov, Martin Mynarek, Björn Ole Juhnke, Stefan Rutkowski, Ulrich Schüller, Barry Pizer, Barbara von Zezschwitz, Robert Kwiecien, Maximilian Wechsung, Frank Konietschke, Eugene I. Hwang, Dominik Sturm, Stefan M. Pfister, Andreas von Deimling, Elisabeth J. Rushing, Marina Ryzhova, Peter Hauser, Maria Łastowska, Pieter Wesseling, Felice Giangaspero, Cynthia Hawkins, Dominique Figarella-Branger, Charles Eberhart, Peter Burger, Marco Gessi, Andrey Korshunov, Tom S. Jacques, David Capper, Torsten Pietsch, Marcel Kool
*Corresponding author for this work
  • Charité – Universitätsmedizin Berlin
  • Medical University of Vienna
  • Hopp Children’s Cancer Center (KiTZ), Heidelberg, Germany
  • German Cancer Research Center
  • Heidelberg University 
  • Sahlgrenska University Hospital
  • Hospital Infantil Universitario Nino Jesus de Madrid
  • KU Leuven
  • Charles University
  • University of Warsaw
  • Université Paris-Sud
  • Université Paris-Saclay
  • Princess Maxima Center of Pediatric Oncology, 3584, Netherlands
  • University College London
  • NIHR Great Ormond Street Biomedical Research Centre, London, UK
  • University of Zurich
  • IRCCS Fondazione Istituto Nazionale per lo studio e la cura dei tumori - Milano
  • Centro Hospitalar Universitário de São João
  • Semmelweis University
  • Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology
  • University of Copenhagen
  • SJD Barcelona Children's Hospital
  • Autonomous University of Barcelona
  • Yonsei University
  • University of Oslo
  • University Medical Center Utrecht
  • Hospital de Pediatría Prof. Dr. Juan P. Garrahan
  • New York University
  • Department of Neurooncology, Russian Scientific Center of Radiology, Moscow, Russia
  • Russian Academy of Medical Sciences
  • University of Hamburg
  • Research Institute Children's Cancer Center Hamburg, Hamburg, Germany
  • University of Liverpool
  • University of Münster
  • Berlin Institute of Health, Comprehensive Allergy Center, Department of Dermatology and Allergy, Berlin
  • Children's National Medical Center
  • Children's Memorial Health Institute
  • Amsterdam UMC - University of Amsterdam
  • University of Rome La Sapienza
  • IRCCS Istituto Neurologico Mediterraneo Neuromed - Pozzilli (IS)
  • University of Toronto
  • Aix-Marseille Université
  • Johns Hopkins University
  • Fondazione Policlinico Universitario Agostino Gemelli IRCCS
  • University of Bonn
  • National Center for Tumor Diseases Heidelberg
  • University Hospital Gasthuisberg
  • Charles University-University Hospital Motol
  • Institut Gustave Roussy
  • Princess Máxima Center for Pediatric Oncology
  • Vall d’Hebron University Hospital
  • Oslo University Hospital
  • Utrecht University
  • Russian Scientific Center of Radiology
  • University Medical Center Hamburg-Eppendorf
  • Humboldt-Universität zu Berlin and Berlin Institute of Health
  • Heidelberg University Hospital
  • University of Amsterdam

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Background: Only few data are available on treatment-associated behavior of distinct rare CNS embryonal tumor entities previously treated as "CNS-primitive neuroectodermal tumors"(CNS-PNET). Respective data on specific entities, including CNS neuroblastoma, FOXR2 activated (CNS NB-FOXR2), and embryonal tumors with multilayered rosettes (ETMR) are needed for development of differentiated treatment strategies. Methods: Within this retrospective, international study, tumor samples of clinically well-annotated patients with the original diagnosis of CNS-PNET were analyzed using DNA methylation arrays (n = 307). Additional cases (n = 66) with DNA methylation pattern of CNS NB-FOXR2 were included irrespective of initial histological diagnosis. Pooled clinical data (n = 292) were descriptively analyzed. Results: DNA methylation profiling of "CNS-PNET"classified 58 (19%) cases as ETMR, 57 (19%) as high-grade glioma (HGG), 36 (12%) as CNS NB-FOXR2, and 89(29%) cases were classified into 18 other entities. Sixty-seven (22%) cases did not show DNA methylation patterns similar to established CNS tumor reference classes. Best treatment results were achieved for CNS NB-FOXR2 patients (5-year PFS: 63% ± 7%, OS: 85% ± 5%, n = 63), with 35/42 progression-free survivors after upfront craniospinal irradiation (CSI) and chemotherapy. The worst outcome was seen for ETMR and HGG patients with 5-year PFS of 18% ± 6% and 22% ± 7%, and 5-year OS of 24% ± 6% and 25% ± 7%, respectively. Conclusion: The historically reported poor outcome of CNS-PNET patients becomes highly variable when tumors are molecularly classified based on DNA methylation profiling. Patients with CNS NB-FOXR2 responded well to current treatments and a standard-risk CSI-based regimen may be prospectively evaluated. The poor outcome of ETMR across applied treatment strategies substantiates the necessity for evaluation of novel treatments.
Original languageEnglish
Pages (from-to)1597-1611
Number of pages15
JournalNeuro-oncology
Volume23
Issue number9
DOIs
Publication statusPublished - 1 Sept 2021

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • CNS NB-FOXR2
  • CNS embryonal tumor
  • CNS-PNET
  • DNA methylation profiling
  • ETMR

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