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Pathogenesis and Molecular Therapy of Brain Tumor

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Oncology".

Deadline for manuscript submissions: 15 December 2025 | Viewed by 811

Special Issue Editor

Institute of Pathology, University Hospital Salzburg, Paracelsus Medical University, Müllner Hauptstr. 48, A-5020 Salzburg, Austria
Interests: glioma; glioblastoma; DNA-methylation; epigenetics; computational pathology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Brain tumors show unique and special molecular features. Glioblastoma is the most frequent primary brain tumor of adults. It shows an aggressive behavior and a poor prognosis. Despite intensive research on targeted therapy, there is still no curative therapy. In the current 2021 WHO Classification of CNS tumors, novel genetic and epigenetic aspects contributing to glioblastoma initiation and progression are highlighted. The most common genetic alterations in brain tumors are IDH1/2 mutations, TERT mutations, and CDKN2A/B deletions. Furthermore, brain tumors show aberrant DNA-methylation landscapes altering numerous biological pathways. This leads to an intimate relationship of tumor initiation and progression with the tumor microenvironment. Therefore, it is necessary to understand genetic and epigenetic mechanisms occurring in glioblastomas in order develop advanced therapy strategies.  

In this Special Issue, we shall discuss advances in understanding the pathogenesis of brain tumors and reveal novel molecular therapy approaches. We invite basic and translational as well as clinical researchers to contribute to this Special Issue. We look forward to receiving your contributions.

Dr. Theo Kraus
Guest Editor

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Keywords

  • brain tumor
  • glioma
  • glioblastoma
  • astrocytoma
  • oligodendroglioma
  • epigenetics
  • precision medicine

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Published Papers (1 paper)

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Research

13 pages, 2207 KB  
Communication
Ultra-Fast Intraoperative IDH-Mutation Analysis Enables Rapid Stratification and Therapy Planning in Diffuse Gliomas
by Theo F. J. Kraus, Beate Alinger-Scharinger, Celina K. Langwieder, Anna Mol, Tereza Aleksic, Brain van Merkestijn, Hans U. Schlicker, Mathias Spendel, Johannes Pöppe, Christoph Schwartz, Christoph J. Griessenauer and Karl Sotlar
Int. J. Mol. Sci. 2025, 26(19), 9639; https://doi.org/10.3390/ijms26199639 - 2 Oct 2025
Viewed by 610
Abstract
Diffuse gliomas are the most common primary brain tumors in adults in the Western world. According to the 2021 World Health Organization (WHO) classification of central nervous system (CNS) tumors, the assessment of isocitrate dehydrogenase (IDH1/2)-mutation status is essential for accurate [...] Read more.
Diffuse gliomas are the most common primary brain tumors in adults in the Western world. According to the 2021 World Health Organization (WHO) classification of central nervous system (CNS) tumors, the assessment of isocitrate dehydrogenase (IDH1/2)-mutation status is essential for accurate patient stratification. In this study, we performed a comprehensive evaluation of IDH-mutation status in the intraoperative setting using the Idylla platform. The reference cohort comprised 30 formalin-fixed paraffin-embedded (FFPE) tissue samples with known IDH status, while the exploration cohort included 35 intraoperative snap-frozen and native-tissue specimens. The results were compared with those of a standard next-generation sequencing (NGS) analysis. Our findings demonstrate that the Idylla IDH-mutation assay provides 100% concordance compared with NGS analysis for both FFPE and intraoperative tissue samples. The Idylla system delivers results within approximately 90 min, significantly outperforming NGS, which requires between 7 and 27 days. This rapid turnaround facilitates timely interdisciplinary case discussions and enables timely therapy planning, within the framework of neuro-oncological molecular tumor boards. The ultra-fast intraoperative IDH-mutation analysis using the Idylla platform, in combination with intraoperative histopathological assessment, enables rapid patient stratification and treatment planning in diffuse gliomas. Full article
(This article belongs to the Special Issue Pathogenesis and Molecular Therapy of Brain Tumor)
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