Journal of Neuro-Oncology

, Volume 112, Issue 1, pp 49–57 | Cite as

EGF signalling and rapamycin-mediated mTOR inhibition in glioblastoma multiforme evaluated by phospho-specific flow cytometry

  • Isabelle Cornez
  • Mrinal Joel
  • Kjetil Taskén
  • Iver A. Langmoen
  • Joel C. Glover
  • Torunn Berge
Laboratory Investigation


Development of novel patient stratification tools for cancer is a challenge that require advanced molecular screening and a detailed understanding of tumour signalling networks. Here, we apply phospho-specific flow cytometry for signal profiling of primary glioblastoma tumours after preservation of single-cell phosphorylation status as a strategy for evaluation of tumour signalling potential and assessment of rapamycin-mediated mTOR inhibition. The method has already enhanced insight into cancers and disorders of the immune system, and our study demonstrate a great potential to improve the understanding of aberrant signalling in glioblastoma and other solid tumours.


EGF signalling Glioblastoma multiforme Phosphoflow cytometry Rapamycin 



The authors wish to thank Jorun Solheim for work on sequencing of the tumour samples. The work was supported by grants from the Norwegian Cancer Society, South-Eastern Regional Health Authority and the Research Council of Norway.

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

11060_2012_1035_MOESM1_ESM.docx (804 kb)
Supplementary material 1 (DOCX 804 kb)


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Isabelle Cornez
    • 1
    • 7
  • Mrinal Joel
    • 2
    • 3
    • 4
  • Kjetil Taskén
    • 1
    • 5
  • Iver A. Langmoen
    • 2
    • 4
    • 6
  • Joel C. Glover
    • 3
    • 4
  • Torunn Berge
    • 1
  1. 1.The Biotechnology Centre of Oslo and Centre for Molecular Medicine Norway, Nordic EMBL Partnership, University of OsloOsloNorway
  2. 2.Vilhelm Magnus Laboratory for Neurosurgical ResearchInstitute for Surgical Research, Oslo University HospitalOsloNorway
  3. 3.Department of PhysiologyInstitute of Basic Medical Sciences, University of OsloOsloNorway
  4. 4.Norwegian Center for Stem Cell ResearchOsloNorway
  5. 5.Department of Infectious DiseasesOslo University HospitalOsloNorway
  6. 6.Department of NeurosurgeryOslo University HospitalOsloNorway
  7. 7.Biomedizinisches Zentrum (BMZ), Medizinische Klinik IIIBonnGermany

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