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Activation of the aryl hydrocarbon receptor in human melanoma cells enhances cancer cell-intrinsic MHC-II expression [ATAC-seq]

GSE304147 Homo sapiens (human) ChIP-seq / ATAC-seq (genome binding and open chromatin) 9 samples Submitted 2026/04/01 Platform GPL24676
At a glance

ChIP-seq / ATAC-seq (genome binding and open chromatin) · human · 9 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
9 samples: 3 × A375 Control ATAC vs 3 × A375 AHRKO ATAC vs 3 × A375 ARNTKO ATACGroups 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
The aryl hydrocarbon receptor (AHR) drives human leukocyte antigen (HLA)-II expression in human melanomaJournal of experimental & clinical cancer research : CR · 2026
Summary (written by the submitters)
Cancer immunotherapy has revolutionized patient outcomes by enhancing immune responses, with major histocompatibility complex class II (MHC-II) playing a pivotal role. While MHC-II is classically expressed by professional antigen-presenting cells (pAPCs), emerging evidence highlights its expression by cancer cells, where it correlates with enhanced immune infiltration and favorable clinical outcomes.
Read the full summary ↓
However, the regulatory mechanisms of cancer cell-intrinsic MHC-II remain unclear. Here, using genome-wide CRISPR-Cas9 screens, we identify the aryl hydrocarbon receptor (AhR) and its nuclear translocator (ARNT) as key regulators of MHC-II expression in human melanoma cells. The expression level and ligand-dependent activity of AhR and ARNT significantly correlate with cancer cell-intrinsic MHC-II expression. Multi-omics analyses reveal that this regulation is mediated through transcriptional activation of the MHC-II transactivator, CIITA, via binding of AhR-ARNT to its second promoter, pII. Our findings uncover a previously unrecognized regulatory axis for MHC-II expression in tumors, presenting new targets for enhancing immunotherapy.
Published in
The aryl hydrocarbon receptor (AHR) drives human leukocyte antigen (HLA)-II expression in human melanoma
Jin Y, Zheng W, Zhang R et al. · Journal of experimental & clinical cancer research : CR 2026 · PMID 41721339 · doi:10.1186/s13046-026-03673-y
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 GSE304147_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 PRJNA1285589 and SRA study SRP597947. Searching any of these in the dataset finder brings you back here.

Study design
3 × A375 Control ATAC vs 3 × A375 AHRKO ATAC vs 3 × A375 ARNTKO ATAC

Supports a between-group comparison across 9 samples.

How we read this: 3 replicated groups read from 9 sample titles; they account for 9 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
Datasets on a similar topic

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