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p53 drives epigenetic programs associated with luminal cell identity in breast cancer [ATAC-seq]

GSE292361 Homo sapiens (human) ChIP-seq / ATAC-seq (genome binding and open chromatin) 12 samples Submitted 2025/11/13 Platform GPL34284
At a glance

ChIP-seq / ATAC-seq (genome binding and open chromatin) · human · 12 samples

What it is
ChIP-seq / ATAC-seq (genome binding and open chromatin)Where proteins bind the genome, or which regions are open and active.
Organism
Homo sapiens (human)
Samples
12 samples: 3 × ATACseq_MCF7_WT_NT vs 3 × ATACseq_MCF7_WT_Tam vs 3 × ATACseq_MCF7_KO_NT vs 3 × ATACseq_MCF7_KO_TamGroups 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
p53 regulates the expression of histone modifiers to restrict stemness and maintain differentiated luminal identity in breast cancerProceedings of the National Academy of Sciences of the United States of America · 2025
Summary (written by the submitters)
Breast cancer is one of the most commonly diagnosed cancers among women and the leading cause of death in women under 50. The majority of breast cancers are estrogen receptor α-positive (ER+). Historically, these cancers are treated with therapies, such as tamoxifen, that inhibit ER activity. The TP53 tumor suppressor gene, encoding the p53 protein, is the most frequently mutated gene in breast cancer, and TP53 mutations are associated with diminished tamoxifen response and worse prognosis.
Read the full summary ↓
Here, we report that in breast cancer cells p53 and ER cooperate to regulate the expression of a set of genes encoding chromatin modifiers. The net result is a global increase in H3K4me3 and decrease in H3K9me3 chromatin marks. The resultant “open” chromatin is associated with increased transcription of luminal cell identity genes and augmented tamoxifen sensitivity. Conversely, diminished p53 control of these chromatin modulators is associated with the evolution of tamoxifen resistance and cancer stem cell properties.
Published in
p53 regulates the expression of histone modifiers to restrict stemness and maintain differentiated luminal identity in breast cancer
Aylon Y, Furth N, Pirona AC et al. · Proceedings of the National Academy of Sciences of the United States of America 2025 · PMID 41160600 · doi:10.1073/pnas.2522646122
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 GSE292361_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: Look for peak files (.bed, .narrowPeak) and signal tracks (.bigWig) among the supplementary files; the raw reads are on ENA.

Also filed as BioProject PRJNA1238236 and SRA study SRP571696. Searching any of these in the dataset finder brings you back here.

Study design
3 × ATACseq_MCF7_WT_NT vs 3 × ATACseq_MCF7_WT_Tam vs 3 × ATACseq_MCF7_KO_NT vs 3 × ATACseq_MCF7_KO_Tam

Supports a between-group comparison across 12 samples.

How we read this: 4 replicated groups read from 12 sample titles; they account for 12 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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