Epigenetic landscape reorganization and reactivation of embryonic development genes are associated with malignancy in IDH-mutant astrocytoma

Accurate grading of IDH-mutant gliomas is crucial for determining patient prognosis and guiding treatment decisions. However, histological grading can be challenging, so we aimed to identify objective molecular markers. To this end, we conducted bulk RNA sequencing on primary IDH-mutant astrocytomas (n=138) from the prospective CATNON trial, which evaluated the prognostic impact of adjuvant and concurrent temozolomide. Using this data, we sought to identify molecular markers linked to increased malignancy in IDH-mutant astrocytomas to establish objective grading criteria.

Type: RNASeq
Archiver: European Genome-Phenome Archive (EGA)

1 Dataset 1 Publication

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Dataset ID	Description	Technology	Samples
EGAD50000000558	Raw fastq files obtained by RNA sequencing 138 IDH-mutant astrocytomas included in the CATNON trial. RNA was extracted from formalin-fixed paraffin-embedded (FFPE) tissue blocks using the RNeasy FFPE kit. RNA sequencing was performed on an Illumina NovaSeq 6000 (GenomeScan BV, Leiden, The Netherlands) with 150bp paired-end reads including UMI tags.	Illumina NovaSeq 6000	138

Publications	Citations
Epigenetic landscape reorganisation and reactivation of embryonic development genes are associated with malignancy in IDH-mutant astrocytoma. Ghisai SA, van Hijfte L, Vallentgoed WR, Tesileanu CMS, de Heer I, Kros JM, Sanson M, Gorlia T, Wick W, Vogelbaum MA, Brandes AA, Franceschi E, Clement PM, Nowak AK, Golfinopoulos V, van den Bent MJ, French PJ, Hoogstrate Y. Acta Neuropathol 148: 2024 50	1

Publications

Citations

Epigenetic landscape reorganisation and reactivation of embryonic development genes are associated with malignancy in IDH-mutant astrocytoma.
Ghisai SA, van Hijfte L, Vallentgoed WR, Tesileanu CMS, de Heer I, Kros JM, Sanson M, Gorlia T, Wick W, Vogelbaum MA, Brandes AA, Franceschi E, Clement PM, Nowak AK, Golfinopoulos V, van den Bent MJ, French PJ, Hoogstrate Y. Acta Neuropathol 148: 2024 50