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

J Neurooncol. 2013 Mar;112(1):49-57. doi: 10.1007/s11060-012-1035-9. Epub 2013 Jan 9.

Abstract

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antibiotics, Antineoplastic / pharmacology*
  • Base Sequence
  • Brain Neoplasms / pathology*
  • Cell Proliferation / drug effects
  • Epidermal Growth Factor / metabolism*
  • Flow Cytometry
  • Gene Expression Regulation, Neoplastic / drug effects
  • Gene Expression Regulation, Neoplastic / genetics
  • Gene Library
  • Glioblastoma / pathology*
  • Humans
  • Phosphorylation / drug effects
  • Signal Transduction / drug effects*
  • Sirolimus / pharmacology*
  • TOR Serine-Threonine Kinases / metabolism*
  • Time Factors
  • Tumor Cells, Cultured

Substances

  • Antibiotics, Antineoplastic
  • Epidermal Growth Factor
  • MTOR protein, human
  • TOR Serine-Threonine Kinases
  • Sirolimus