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Leukemogenic Kras mutation reprograms multipotent progenitors to facilitate its spread through the hematopoietic system

GSE261879 Mus musculus (mouse) RNA-seq (gene expression) 2 samples Submitted 2025/02/19 Platform GPL24247
At a glance

RNA-seq (gene expression) · mouse · 2 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
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
Leukemogenic Kras mutation reprograms multipotent progenitors to facilitate its spread through the hematopoietic systemThe Journal of experimental medicine · 2025
Summary (written by the submitters)
We studied how leukemia-associated mutations subvert normal adult hematopoiesis by genetically inducing them in specifically in murine hematopoietic stem cells (HSC) followed by lineage tracing in native hosts. Leukemia-initiating mutations such as Tet2 or Dnmt3a deletions did not increase the net HSC contribution in the steady state, whereasTet2 deletion slightly accelerated HSC contribution to myeloid lineages following microbial stimulation.
Read the full summary ↓
In contrast, the leukemia-transforming KrasG12D mutation dramatically accelerated the contribution of mutant HSC to all hematopoietic lineages, rapidly creating a pre-leukemic state. The acceleration was mediated by KrasG12D-carrying multipotent progenitors (MPP) that rapidly outcompeted normal MPP and showed increased proliferation but lacked self-renewal capacity. In addition, mutant progenitor cells expressed the secreted stem/progenitor regulator osteopontin and showed enhanced CXCR4-dependent motility, both of which contributed to the accelerated spread of the mutation to mature cells. Thus, transforming mutations may facilitate their spread from HSC to mature cells via hypercompetitive progenitors, creating a two-component stem/progenitor circuit that underlies leukemogenesis.
Published in
Leukemogenic Kras mutation reprograms multipotent progenitors to facilitate its spread through the hematopoietic system
Jang G, Park R, Esteva E et al. · The Journal of experimental medicine 2025 · PMID 40072317 · doi:10.1084/jem.20240587
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 GSE261879_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 PRJNA1089321 and SRA study SRP496264. Searching any of these in the dataset finder brings you back here.

Samples in this study

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+ 2 more — browse all 2 samples with per-sample file links →

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