Effect of Concomitant Radiochemotherapy on Invasion Potential of Glioblastoma

Gábor Hutóczki, L. Bognár, J. Tóth, B. Scholtz, Gábor Zahuczky, Z. Hanzély, Éva Csősz, Judit Reményi-Puskár, Gergő Kalló, T. Hortobágyi, A. Klekner

Research output: Contribution to journalArticle

Abstract

Glioblastoma (GBM) is the most common primary brain tumor in adults with inevitable recurrence after oncotherapy. The insufficient effect of “gold standard” temozolomide-based concomitant radiochemotherapy may be due to the inability to prevent tumor cell invasion. Peritumoral infiltration depends mainly on the interaction between extracellular matrix (ECM) components and cell membrane receptors. Changes in invasive behaviour after oncotherapy can be evaluated at the molecular level by determining the RNA expression and protein levels of the invasion-related ECM components. The expression of nineteen ECM molecules was determined at both RNA and protein levels in thirty-one GBM samples. Fifteen GBM samples originated from the first surgical procedure on patients before oncotherapy, and sixteen GBM samples were collected at the second surgery due to local recurrence after concomitant chemoirradiation. RNA expressions were measured with qRT-PCR, and protein levels were determined by quantitative analysis of Western blots. Only MMP-9 RNA transcript level was reduced (p 

Original languageEnglish
Pages (from-to)155-160
Number of pages6
JournalPathology and Oncology Research
Volume22
Issue number1
DOIs
Publication statusPublished - Jan 1 2016

Keywords

  • Extracellular matrix
  • Glioblastoma
  • Invasion
  • Radiochemotherapy
  • Temozolomide

ASJC Scopus subject areas

  • Cancer Research
  • Oncology
  • Pathology and Forensic Medicine

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