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5-hydroxymethylcytosine deposition mediates Polycomb Repressive Complex 2 function in MYCN-amplified neuroblastoma [nano-seal, 5hmC]

GSE294304 Homo sapiens (human) Other 18 samples Submitted 2026/05/12 Platform GPL24676
At a glance

human · 18 samples

Organism
Homo sapiens (human)
Samples
18 samples: 6 conditions, mostly in triplicateGroups 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.
Summary (written by the submitters)
MYCN-amplification is a strong predictor of poor prognosis in neuroblastoma, an embryonal malignancy that accounts for 15% of pediatric cancer deaths. Here, we found that MYCN-amplified neuroblastoma tumors have increased 5-hydroxymethylcytosine (5-hmC) deposition on Polycomb Repressive Complex 2 (PRC2) target genes. 5-hmC and H3K27me3, a catalytic product of PRC2, directly co-localize at the nucleosomal level in MYCN-amplified neuroblastoma.
Read the full summary ↓
Genes with co-localization of 5-hmC/H3K27me3 are involved in development related pathways and are transcriptionally repressed in MYCN-amplified neuroblastoma. Chemical and genetic inhibition of 5-hmC deposition results in a loss of H3K27me3 deposition on protein-coding genes. Furthermore, 5-hmC deposition predisposes H3K27me3 marked genes to transcriptional activation upon PRC2 inhibition with tazemetostat. Low expression of genes marked by 5-hmC/H3K27me3 is associated with poor clinical outcome. Our results suggest that 5-hmC/H3K27me3 co-operate to repress mediators of development highlighting a novel link between DNA modifications and chromatin modifications with potential therapeutic implications in MYCN-amplified neuroblastoma.
This dataset
Download · which file do I need?

Direct links to NCBI, 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.

All supplementary files ↗
3 · The original raw files

Whole study · RAW.tar

Everything the authors deposited as one archive (GSE294304_RAW.tar), including the raw array or instrument files. Can be large; the picker in step 2 takes just the samples you need.

Also filed as BioProject PRJNA1248982. Searching any of these in the dataset finder brings you back here.

Study design
6 conditions, mostly in triplicate
WN, tazemetostat, 5hmC, ×3 WN, DMSO, 5hmC, ×3 BE2, tazemetostat, 5hmC, ×3 BE2, DMSO, 5hmC, ×3 BE2, C&R for H3K27me3 followed by nano-seal, … ×2 WN, C&R for H3K27me3 followed by nano-seal, 5… ×2 BE2, C&R for H3K27me3 followed by nano-seal n… ×1 WN, C&R for H3K27me3 followed by nano-seal ne… ×1

Supports a between-group comparison across 16 samples.

How we read this: 6 replicated groups read from 18 sample titles; they account for 16 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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