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TopBP1 controls conventional dendritic cell development and Flt3L-driven cDC1 differentiation via PU.1 and IRF8 [ChIP-Seq]

GSE301438 Mus musculus (mouse) ChIP-seq / ATAC-seq (genome binding and open chromatin) 2 samples Submitted 2025/12/16 Platform GPL24247
At a glance

ChIP-seq / ATAC-seq (genome binding and open chromatin) · mouse · 2 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
Mus musculus (mouse)
Samples
2 samples
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
TopBP1 orchestrates PU.1-IRF8 transcriptional programming of dendritic cell differentiation and Flt3L-driven tumor immunityExperimental & molecular medicine · 2026
Summary (written by the submitters)
DNA topoisomerase II-binding protein 1 (TopBP1) plays a vital role in V(D)J recombination during B and T cell development. However, its role in the development of conventional dendritic cells (cDCs) remains unexplored. Mice with DC-specific depletion of TopBP1 (TopBP1cKO) showed accelerated tumor progression due to impaired anti-tumor immunity, characterized by cDC deficiency and pre-DC accumulation.
Read the full summary ↓
Notably, Flt3 ligand (Flt3L)-mediated tumor immunotherapy was ineffective in TopBP1cKO tumor-bearing mice. Our study demonstrates that TopBP1 is required not only for the steady-state differentiation of total cDCs, including both cDC1 and cDC2, but also for the terminal differentiation of XCR1⁻CD24⁺ emergency progenitors (EPs; CD11c⁺cKit⁺) into XCR1⁺CD24⁺ cDC1s in response to Flt3L. Furthermore, we revealed that TopBP1 directly interacts with PU.1 and IRF8, key transcription factors (TFs) required for cDC development, triggering the expression of their downstream target genes. These findings identify TopBP1 as a crucial factor for cDC development and Flt3L-driven EP differentiation into cDC1s, revealing that the function of key TFs for cDC development is mediated via interaction with TopBP1. Our work underscores the importance of TopBP1 in promoting cDC development and the therapeutic efficacy of Flt3L-mediated tumor immunotherapy.
Published in
TopBP1 orchestrates PU.1-IRF8 transcriptional programming of dendritic cell differentiation and Flt3L-driven tumor immunity
Cha MS, Kang MH, Lee J et al. · Experimental & molecular medicine 2026 · PMID 42104014 · doi:10.1038/s12276-026-01715-1
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 GSE301438_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 PRJNA1285171 and SRA study SRP597333. Searching any of these in the dataset finder brings you back here.

Samples in this study

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