Virchows Archiv

, Volume 453, Issue 6, pp 599–609 | Cite as

Gene expression profiling in glioblastoma and immunohistochemical evaluation of IGFBP-2 and CDC20

  • Gianluca Marucci
  • Luca Morandi
  • Elisabetta Magrini
  • Anna Farnedi
  • Enrico Franceschi
  • Rossella Miglio
  • Daniela Calò
  • Annalisa Pession
  • Maria P. Foschini
  • Vincenzo EusebiEmail author
Original Article


Thirty-nine glial tumours (28 glioblastomas (GB) and 11 low-grade gliomas) were investigated with DNA microarrays to reveal a possible specific gene expression profile. Unsupervised classification through hierarchical cluster analysis identified two groups of tumours, the first composed of low-grade gliomas and the second mainly composed of GB. Nine genes were identified as most informative: seven were over-expressed in low-grade gliomas and under-expressed in GB; on the contrary, two genes, insulin-like growth factor binding protein 2 (IGFBP-2) and cell division cycle 20 homologue (CDC20), were over-expressed in GB and under-expressed in low-grade tumours. This same genetic profile was confirmed by reverse transcriptase polymerase chain reaction. Immunohistochemistry for IGFBP-2 was positive in 88.8% of the cases of GB and in only one low-grade glioma, whilst CDC20 immunostained 74.1% of the cases of GB and none low-grade glioma. This was confirmed in an additional series of cases studied with immunohistochemistry only. In conclusion, over-expression of mRNA levels of IGFBP-2 and CDC20 is highly related to GB, IGFBP-2 and CDC-20 gene and protein expressions are strongly correlated, and IGFBP-2 and CDC20 immunopositivity can be useful for the identification of GB in small biopsies.


Glioblastoma High-grade glioma Gene expression IGFBP-2 CDC20 



We wish to thank Dr. M. Guizzardi for the encouragement to enter into the world of gene array. This work was presented as Presidential free paper at the 3rd Intercontinental Congress of Pathology, May 2008, Barcelona

Conflict of interest statement

We declare that we have no conflict of interest.


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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Gianluca Marucci
    • 1
  • Luca Morandi
    • 1
  • Elisabetta Magrini
    • 1
  • Anna Farnedi
    • 1
  • Enrico Franceschi
    • 2
  • Rossella Miglio
    • 3
  • Daniela Calò
    • 3
  • Annalisa Pession
    • 1
  • Maria P. Foschini
    • 1
  • Vincenzo Eusebi
    • 1
    • 4
    Email author
  1. 1.Section of Pathology, Bellaria HospitalUniversity of BolognaBolognaItaly
  2. 2.Department of Medical OncologyBellaria HospitalBolognaItaly
  3. 3.Department of Statistics “Paolo Fortunati”University of BolognaBolognaItaly
  4. 4.Sezione di Anatomia Patologica “M. Malpighi”Ospedale BellariaBolognaItaly

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