Pathology & Oncology Research

, Volume 25, Issue 1, pp 21–31 | Cite as

Molecular Subgroups of Glioblastoma– an Assessment by Immunohistochemical Markers

  • Ádám Nagy
  • Ferenc Garzuly
  • Gergely Padányi
  • Iván Szűcs
  • Ádám Feldmann
  • Balázs Murnyák
  • Tibor Hortobágyi
  • Bernadette KálmánEmail author
Original Article


Comprehensive molecular characterization of and novel therapeutic approaches to glioblastoma have been explored as a result of advancements in biotechnologies. In this study, we aimed to bring basic research discoveries closer to clinical practice and ultimately incorporate molecular classification into the routine histopathological evaluation of grade IV gliomas. Integrated results of genome-wide sequencing, transcriptomic and epigenomic analyses by The Cancer Genome Atlas Network defined the classic, proneural, neural and mesenchymal subtypes of this tumor. In a retrospective cohort, we analyzed selected subgroup-defining molecular markers in formalin-fixed paraffin-embedded surgical specimens by immunohistochemistry. Quantitative and qualitative scores of marker expression were tested in hierarchical cluster analyses to evaluate segregations of the molecular subgroups, which then were correlated with clinical parameters including patients’ age, gender and overall survival. Our study has confirmed the separation of molecular glioblastoma subgroups with clear trends regarding clinical correlations. Future analyses in a larger, prospective cohort using similar methods are expected to facilitate the development of a molecular diagnostic panel that may complement routine histological work up and support prognostication as well as treatment decisions in glioblastoma.


Glioblastoma Molecular subgroups Translation Clinical setting 



These works were supported by an anonymous private donation and the University of Pecs internal and external funding systems. TH received support from the Hungarian Brain Research Programme (NAP KTIA_13_NAP-A-II/7) and GINOP-2.3.2-15-2016-00043.The present scientific contribution is dedicated to the 650th anniversary of the foundation of the University of Pécs, Hungary.


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Copyright information

© Arányi Lajos Foundation 2017

Authors and Affiliations

  • Ádám Nagy
    • 1
  • Ferenc Garzuly
    • 2
  • Gergely Padányi
    • 2
  • Iván Szűcs
    • 3
  • Ádám Feldmann
    • 4
  • Balázs Murnyák
    • 5
  • Tibor Hortobágyi
    • 5
  • Bernadette Kálmán
    • 1
    • 2
    Email author
  1. 1.Faculty of Health Sciences, School of Graduate StudiesUniversity of PécsPécsHungary
  2. 2.Markusovszky University Teaching Hospital, University of PecsSzombathelyHungary
  3. 3.St Borbála HospitalTatabányaHungary
  4. 4.Faculty of Medicine, Institute of Behavioral SciencesUniversity of PécsPécsHungary
  5. 5.Department of Pathology, Division of NeuropathologyUniversity of DebrecenDebrecenHungary

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