Biglycan-driven risk stratification in ZFTA-RELA fusion supratentorial ependymomas through transcriptome profiling
Recent genomic studies have allowed the subdivision of intracranial ependymomas into molecularly distinct groups with highly specific clinical features and outcomes. The majority of supratentorial ependymomas (ST-EPN) harbor ZFTA-RELA fusions which were designated, in general, as an intermediate ris...
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| Hauptverfasser: | , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
07 January 2025
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| In: |
Acta Neuropathologica Communications
Year: 2025, Jahrgang: 13, Heft: 1, Pages: 1-12 |
| ISSN: | 2051-5960 |
| DOI: | 10.1186/s40478-024-01921-w |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1186/s40478-024-01921-w Verlag, kostenfrei, Volltext: https://link.springer.com/article/10.1186/s40478-024-01921-w 
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| Verfasserangaben: | Konstantin Okonechnikov, David R. Ghasemi, Daniel Schrimpf, Svenja Tonn, Martin Mynarek, Jan Koster, Till Milde, Tuyu Zheng, Philipp Sievers, Felix Sahm, David T.W. Jones, Andreas von Deimling, Stefan M. Pfister, Marcel Kool, Kristian W. Pajtler and Andrey Korshunov |
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| 245 | 1 | 0 | |a Biglycan-driven risk stratification in ZFTA-RELA fusion supratentorial ependymomas through transcriptome profiling |c Konstantin Okonechnikov, David R. Ghasemi, Daniel Schrimpf, Svenja Tonn, Martin Mynarek, Jan Koster, Till Milde, Tuyu Zheng, Philipp Sievers, Felix Sahm, David T.W. Jones, Andreas von Deimling, Stefan M. Pfister, Marcel Kool, Kristian W. Pajtler and Andrey Korshunov |
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| 520 | |a Recent genomic studies have allowed the subdivision of intracranial ependymomas into molecularly distinct groups with highly specific clinical features and outcomes. The majority of supratentorial ependymomas (ST-EPN) harbor ZFTA-RELA fusions which were designated, in general, as an intermediate risk tumor variant. However, molecular prognosticators within ST-EPN ZFTA-RELA have not been determined yet. Here, we performed methylation-based DNA profiling and transcriptome RNA sequencing analysis of 80 ST-EPN ZFTA-RELA investigating the clinical significance of various molecular patterns. The principal types of ZFTA-RELA fusions, based on breakpoint location, demonstrated no significant correlations with clinical outcomes. Multigene analysis disclosed 1892 survival-associated genes, and a metagene set of 100 genes subdivided ST-EPN ZFTA-RELA into favorable and unfavorable transcriptome subtypes composed of different cell subpopulations as detected by deconvolution analysis. BGN (biglycan) was identified as the top-ranked survival-associated gene and high BGN expression levels were associated with poor survival (Hazard Ratio 17.85 for PFS and 45.48 for OS; log-rank; p-value < 0.01). Furthermore, BGN immunopositivity was identified as a strong prognostic indicator of poor survival in ST-EPN, and this finding was confirmed in an independent validation set of 56 samples. Our results indicate that integrating BGN expression (at mRNA and/or protein level) into risk stratification models may improve ST-EPN ZFTA-RELA outcome prediction. Therefore, gene and/or protein expression analyses for this molecular marker could be adopted for ST-EPN ZFTA-RELA prognostication and may help assign patients to optimal therapies in prospective clinical trials. | ||
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