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CRAMP1-dependent histone H1 biogenesis is essential for topoisomerase II inhibitor tolerance [RNA-seq]

GSE275117 Homo sapiens (human) RNA-seq (gene expression) 20 samples Submitted 2025/06/13 Platform GPL30173
At a glance

RNA-seq (gene expression) · human · 20 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
20 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; the raw sequencing reads from ENA. Which of these hold counts depends on the study, so check the file list.
Paper
CRAMP1-dependent histone H1 biogenesis is essential for topoisomerase II inhibitor toleranceMolecular cell · 2025
Summary (written by the submitters)
Topoisomerase II (TOP2) inhibitors (TOP2i) are mainstay chemotherapeutic agents that undermine genome integrity by stabilizing TOP2-DNA complexes accompanied by DNA damage formation. Here, we reveal the uncharacterized protein CRAMP1 and H1 linker histones as key effectors of TOP2i tolerance in human cells. We demonstrate that CRAMP1 defines a dedicated histone H1 biogenesis factor stimulating transcription of both replicative and non-replicative H1 genes, driven by its concurrent targeting to histone gene loci and H1-specific promoter motifs.
Read the full summary ↓
CRAMP1 promotes TOP2i tolerance by maintaining H1 supply, involving a novel mechanism uncoupled from TOP2i-induced DNA damage whereby reducing the H1 pool triggers unscheduled TOP2 substrate formation in low accessibility chromatin states. This amplifies total demand for TOP2 activity, lowering the threshold for TOP2i-mediated exhaustion of TOP2. Our discoveries elucidate the mechanistic basis of histone H1 biogenesis in human cells, opening opportunities for selectively manipulating linker but not core histone supply and targeting cancer-associated H1 deficiency.
Published in
CRAMP1-dependent histone H1 biogenesis is essential for topoisomerase II inhibitor tolerance
Ingham A, de Vega IA, Morlot L et al. · Molecular cell 2025 · PMID 40516529 · doi:10.1016/j.molcel.2025.04.006
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 GSE275117_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 PRJNA1149476 and SRA study SRP527208. Searching any of these in the dataset finder brings you back here.

Study design
6 conditions, mostly in triplicate
WT cells, RNA, exp1, ×3 CRAMP1-KO cells, RNA, exp1, ×3 WT cells, RNA, exp2, ×3 CRAMP1-KO cells, RNA, exp2, ×3 CRAMP1-KO + GFP-CRAMP1-∆SANT cells, RNA, exp2, ×2 CRAMP1-KO + GFP-CRAMP1-∆GB-N cells, RNA, exp2, ×2 CRAMP1-KO + GFP-CRAMP1 cells, RNA, exp2, ×1 CRAMP1-KO + GFP-CRAMP1 cells, RNA, exp2, ×1 +2 more

Supports a between-group comparison across 16 samples.

How we read this: 6 replicated groups read from 20 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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