Gliomatosis cerebri in children: A poor prognostic phenotype of diffuse gliomas with a distinct molecular profile

  • Gunther Nussbaumer (Corresponding Author)
  • , Martin Benesch
  • , Yura Grabovska
  • , Alan Mackay
  • , David Castel
  • , Jacques Grill
  • , Marta M Alonso
  • , Manila Antonelli
  • , Simon Bailey
  • , Joshua N Baugh
  • , Veronica Biassoni
  • , Mirjam Blattner-Johnson
  • , Alberto Broniscer
  • , Andrea Carai
  • , Giovanna Stefania Colafati
  • , Niclas Colditz
  • , Selim Corbacioglu
  • , Shauna Crampsie
  • , Natacha Entz-Werle
  • , Matthias Eyrich
  • Lea L Friker, Michael C Frühwald, Maria Luisa Garrè, Nicolas U Gerber, Felice Giangaspero, Maria J Gil-da-Costa, Norbert Graf, Darren Hargrave, Peter Hauser, Ulrich Herrlinger, Marion Hoffmann, Esther Hulleman, Elisa Izquierdo, Sandra Jacobs, Michael Karremann, Antonis Kattamis, Rejin Kebudi, Rolf-Dieter Kortmann, Robert Kwiecien, Maura Massimino, Angela Mastronuzzi, Evelina Miele, Giovanni Morana, Claudia M Noack, Virve Pentikainen, Thomas Perwein, Stefan M Pfister, Torsten Pietsch, Kleoniki Roka, Sabrina Rossi, Stefan Rutkowski, Elisabetta Schiavello, Clemens Seidel, Jaroslav Štěrba, Dominik Sturm, David Sumerauer, Anna Tacke, Sara Temelso, Chiara Valentini, Dannis van Vuurden, Pascale Varlet, Sophie E M Veldhuijzen van Zanten, Maria Vinci, André O von Bueren, Monika Warmuth-Metz, Pieter Wesseling, Maria Wiese, Johannes E A Wolff, Josef Zamecnik, Andrés Morales La Madrid, Brigitte Bison, Gerrit H Gielen, David T W Jones, Chris Jones, Christof M Kramm (Corresponding Author)

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

BACKGROUND: The term gliomatosis cerebri (GC), a radiology-defined highly infiltrating diffuse glioma, has been abandoned since molecular GC-associated features could not be established.

METHODS: We conducted a multinational retrospective study of 104 children and adolescents with GC providing comprehensive clinical and (epi-)genetic characterization.

RESULTS: Median overall survival (OS) was 15.5 months (interquartile range, 10.9-27.7) with a 2-year survival rate of 28%. Histopathological grading correlated significantly with median OS: CNS WHO grade II: 47.8 months (25.2-55.7); grade III: 15.9 months (11.4-26.3); grade IV: 10.4 months (8.8-14.4). By DNA methylation profiling (n = 49), most tumors were classified as pediatric-type diffuse high-grade glioma (pedHGG), H3-/IDH-wild-type (n = 31/49, 63.3%) with enriched subclasses pedHGG_RTK2 (n = 19), pedHGG_A/B (n = 6), and pedHGG_MYCN (n = 5), but only one pedHGG_RTK1 case. Within the pedHGG, H3-/IDH-wild-type subgroup, recurrent alterations in EGFR (n = 10) and BCOR (n = 9) were identified. Additionally, we observed structural aberrations in chromosome 6 in 16/49 tumors (32.7%) across tumor types. In the pedHGG, H3-/IDH-wild-type subgroup TP53 alterations had a significant negative effect on OS.

CONCLUSIONS: Contrary to previous studies, our representative pediatric GC study provides evidence that GC has a strong predilection to arise on the background of specific molecular features (especially pedHGG_RTK2, pedHGG_A/B, EGFR and BCOR mutations, chromosome 6 rearrangements).

Original languageEnglish
Pages (from-to)1723-1737
Number of pages15
JournalNeuro-Oncology
Volume26
Issue number9
DOIs
Publication statusPublished - 5 Sept 2024
Externally publishedYes

Keywords*

  • Humans
  • Child
  • Male
  • Neoplasms, Neuroepithelial/pathology
  • Female
  • Adolescent
  • Retrospective Studies
  • Prognosis
  • Child, Preschool
  • Brain Neoplasms/genetics
  • Glioma/genetics
  • Phenotype
  • Survival Rate
  • DNA Methylation
  • Infant
  • Biomarkers, Tumor/genetics
  • Mutation
  • Follow-Up Studies
  • Neoplasm Grading

Field of Science*

  • 3.2 Clinical medicine

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database

Fingerprint

Dive into the research topics of 'Gliomatosis cerebri in children: A poor prognostic phenotype of diffuse gliomas with a distinct molecular profile'. Together they form a unique fingerprint.

Cite this