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Oncogenic fusions converge on shared mechanisms in initiating astroblastoma [RNA-Seq of TREx293]

GSE284485 Homo sapiens (human) RNA-seq (gene expression) 10 samples Submitted 2025/03/27 Platform GPL29480
At a glance

RNA-seq (gene expression) · human · 10 samples

What it is
RNA-seq (gene expression)Gene activity measured by sequencing. The summary does not mention single-cell work, so this is most likely bulk: one average per sample, the usual starting point for comparing groups.
Organism
Homo sapiens (human)
Samples
10 samples: 5 conditions, mostly in duplicateGroups are read from the sample names, not from the paper. Check the list below.
Data you can get
A processed table (series matrix) and supplementary files from NCBI; the raw sequencing reads from ENA. Which of these hold counts depends on the study, so check the file list.
Paper
Oncogenic fusions converge on shared mechanisms in initiating astroblastomaNature · 2025
Summary (written by the submitters)
Chromosomal rearrangements and gene fusions are the initial events in the development of many cancers. Astroblastoma (ABM), a challenging brain cancer of unknown cellular origin, is associated with diverse in-frame gene fusions, including MN1:BEND2 and MN1:CXXC5. However, it remains unclear if these gene fusions contribute to tumorigenesis.
Read the full summary ↓
Here, we show that the two ABM-associated fusions converge on similar molecular activities and initiate malignancy specifically in ventral telencephalon neural progenitors. BEND2 and CXXC5 recognized similar DNA motifs, suggesting a convergence on downstream gene regulation. Expressing MN1:BEND2 in ventral telencephalon neural progenitors results in aberrant cell proliferation, impaired differentiation, a perivascular occupancy pattern of cells reminiscent of ABM, and acquisition of an ABM-associated transcriptional signature. In stark contrast, MN1:BEND2 expression in dorsal telencephalon neural progenitors leads to extensive cell death. This cell-type specific malignancy is dependent on Olig2 expression. Mechanistically, both ABM-associated fusion proteins (MN1:BEND2 and MN1:CXXC5) induce overlapping transcriptional responses, including the activation of a therapeutically targetable PDGFRα pathway. Collectively, our data suggests that distinct ABM-associated fusions upregulate shared transcriptional networks, thereby disrupting the normal development of ventral telencephalon neural progenitors and culminating in oncogenic transformation. These findings uncover new avenues for targeted ABM treatment.
Published in
Oncogenic fusions converge on shared mechanisms in initiating astroblastoma
Shi Y, Sun Q, Jia F et al. · Nature 2025 · PMID 40369078 · doi:10.1038/s41586-025-08981-5
This dataset
Download · which file do I need?

Direct links to NCBI and ENA, no account and no request form. Pick by what you want to do: take the small processed table to look, the supplementary files to re-analyse, or the original raw data to start over.

1 · Just have a look

Processed table

The series matrix: one table of values per sample as the submitters processed it. The smallest download, and it opens in Excel or R. Start here to see what the data look like.

2 · Re-analyse it

Supplementary files

The count tables and other files the authors uploaded. Take only the samples you need, or the whole study as GSE284485_RAW.tar (it can run to tens of gigabytes).

3 · Start from the raw reads

Raw sequencing reads

The original FASTQ files, straight from the sequencer, held at ENA. Large, and you align them yourself, so only choose this if you need to re-process the study from scratch.

What the files usually look like: For RNA-seq the counts are usually a table among the supplementary files (look for 'counts', 'expression', 'FPKM' or 'TPM' in the file name). The series matrix of a sequencing study is sometimes nearly empty.

Also filed as BioProject PRJNA1199372 and SRA study SRP552126. Searching any of these in the dataset finder brings you back here.

Study design
5 conditions, mostly in duplicate
TREx293_BEND2 ×2 TREx293_CTRL ×2 TREx293_MN1 ×2 TREx293_MN1-BEND2 ×2 TREx293_MN1-CXXC5 ×2

Supports a between-group comparison across 10 samples.

How we read this: 5 replicated groups read from 10 sample titles; they account for 10 of them. These groups are guessed from the sample names, not taken from the paper, so check them against the sample list below before relying on them.

Samples in this study
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Metadata from NCBI GEO, cached and refreshed periodically — the NCBI page above is authoritative. Downloads link straight to NCBI/ENA; nothing is proxied through BioTransfer.