Journal of Neuro-Oncology

, Volume 90, Issue 2, pp 133–140

Genomic changes in progression of low-grade gliomas

  • Ahmed Idbaih
  • Rosana Carvalho Silva
  • Emmanuelle Crinière
  • Yannick Marie
  • Catherine Carpentier
  • Blandine Boisselier
  • Sophie Taillibert
  • Audrey Rousseau
  • Karima Mokhtari
  • François Ducray
  • Joelle Thillet
  • Marc Sanson
  • Khê Hoang-Xuan
  • Jean-Yves Delattre
Lab. Investigation - Human/Animal Tissue

DOI: 10.1007/s11060-008-9644-z

Cite this article as:
Idbaih, A., Carvalho Silva, R., Crinière, E. et al. J Neurooncol (2008) 90: 133. doi:10.1007/s11060-008-9644-z

Abstract

Using a one-megabase BAC-based array comparative genomic hybridization technique (aCGH), we have investigated a series of 16 low-grade gliomas (LGGs) and their subsequent progression to higher-grade malignancies. The most frequent chromosome imbalances in primary tumors were gains of chromosomes 7q, 8q, and 22q, and losses of chromosomes 1p, 13q, and 19q. In tumor progression, gains of chromosomes 11q, 7q, 20q, and 21q, and losses of chromosomes 9p, including CDKN2A locus, 19q, 14q, 1p, and 6q were the most frequent genomic disequilibria. Progressive tumors were more imbalanced than primary tumors in terms of altered chromosomal arms (3.8 vs. 6.6 in mean abnormal chromosomal arm) and altered BACs (17 vs. 21%). Interestingly, putative novel candidate genes associated with glioma progression were identified, in particular DOCK8, PTPRD, CER1, TPHO, DHFR, MSH3, ETS1, ACACA, and CSE1L.

Keywords

GliomaProgressionGenomicsCGHArray

Copyright information

© Springer Science+Business Media, LLC. 2008

Authors and Affiliations

  • Ahmed Idbaih
    • 1
    • 2
    • 3
  • Rosana Carvalho Silva
    • 1
    • 2
  • Emmanuelle Crinière
    • 1
    • 2
  • Yannick Marie
    • 1
    • 2
  • Catherine Carpentier
    • 1
    • 2
  • Blandine Boisselier
    • 1
    • 2
  • Sophie Taillibert
    • 3
  • Audrey Rousseau
    • 1
    • 2
    • 4
  • Karima Mokhtari
    • 1
    • 2
    • 4
  • François Ducray
    • 1
    • 2
    • 3
  • Joelle Thillet
    • 1
    • 2
  • Marc Sanson
    • 1
    • 2
    • 3
  • Khê Hoang-Xuan
    • 1
    • 2
    • 3
  • Jean-Yves Delattre
    • 1
    • 2
    • 3
  1. 1.INSERM Unité 711ParisFrance
  2. 2.Laboratoire Biologie des Interactions Neurone-Glie, Groupe hospitalier Pitié-SalpêtrièreUniversité Pierre et Marie Curie-Paris6ParisFrance
  3. 3.AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie MazarinParisFrance
  4. 4.Laboratoire de Neuropathologie R EscourolleHôpital Pitié-SalpêtrièreParisFrance