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Modulation of NOTCH1 signaling in CLL and MCL cell lines

GSE293100 Homo sapiens (human) RNA-seq (gene expression) 30 samples Submitted 2025/05/31 Platform GPL24676
At a glance

RNA-seq (gene expression) · human · 30 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)
Topic
Chronic lymphocytic leukemiaThis series is part of our curated briefing on it.
Samples
30 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
NOTCH1 signaling is dysregulated by loss of the deubiquitinase USP28 with del(11q), uncovering USP28 inhibition as novel therapeutic target in CLLLeukemia · 2025
Summary (written by the submitters)
Aberrant active NOTCH1 signaling is a key pathogenic factor in chronic lymphocytic leukemia (CLL), detectable in half of patients and associated with disease progression. While some cases of active NOTCH1 signaling can be explained by mutations in NOTCH1 or its regulators, like FBXW7, alternative mechanisms remain elusive. Here, we identified the deubiquitinase USP28 as regulator of NOTCH1 signaling in CLL.
Read the full summary ↓
Notably, USP28 is located within the frequently deleted chr11q23 region and is deleted in 90% of del(11q) patients, resulting in its decreased expression. USP28 interacts with the NOTCH1 intracellular domain (NICD) independently of FBXW7 and the NICD-PEST domain, stabilizing NICD and enhancing NOTCH1 signaling. Integrating RBPJ-occupied genes in HG3 cells, RNA-Seq of USP28WT/KO cells and gene expression from del(11q) CLL patients, we identified 15 NOTCH1 target genes specifically dysregulated by USP28 and del(11q) potentially influencing CLL pathogenesis. Pharmacological inhibition of USP28 with the small molecule AZ1 suppressed NOTCH1 activation in primary CLL cells. AZ1 combined with the BCL-2 inhibitor venetoclax reduced CLL cell viability, particularly in samples with high NOTCH1 activity. Our findings highlight USP28 as promising therapeutic target and provide a rationale for combined inhibition of USP28 and BCL-2 in CLL patients with active NOTCH1 signaling.
Published in
NOTCH1 signaling is dysregulated by loss of the deubiquitinase USP28 with del(11q), uncovering USP28 inhibition as novel therapeutic target in CLL
Ehrmann AS, Quijada-Álamo M, Close V et al. · Leukemia 2025 · PMID 40456839 · doi:10.1038/s41375-025-02632-4
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 GSE293100_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 PRJNA1242792 and SRA study SRP573568. Searching any of these in the dataset finder brings you back here.

Samples in this study

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