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PGK1 moonlights as an NF-kB/p65 kinase to orchestrate M2-like macrophage-mediated immunosuppression in triple-negative breast cancer

GSE341921 Mus musculus (mouse) Single-cell RNA-seq 6 samples Submitted 2026/08/06 Platform GPL28457
At a glance

Single-cell RNA-seq · mouse · 6 samples

What it is
Single-cell RNA-seqGene activity measured in thousands of individual cells, so cell types can be told apart. Read from the summary: GEO's own type field only says 'expression profiling by sequencing', so confirm it in the paper.
Organism
Mus musculus (mouse)
Samples
6 samples: 3 × shNC vs 3 × shPgk1Groups 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.
Summary (written by the submitters)
Triple-negative breast cancer (TNBC) is the most aggressive molecular subtype with limited therapeutic options. Metabolic reprogramming is a hallmark of cancer, and emerging evidence indicates metabolic enzymes possess non-canonical moonlighting functions. We identified phosphoglycerate kinase 1 (PGK1) as a key link between glycolysis and immunosuppression in TNBC.
Read the full summary ↓
To investigate the role of PGK1 in shaping the tumor immune microenvironment, we performed single-cell RNA sequencing (scRNA-seq) on TNBC cells (4T1) with PGK1 knockdown (shPgk1) and negative control (shNC), each with three biological replicates. Single-cell libraries were prepared on the TaiM4 scRNA platform and sequenced on the BGI DNBSEQ platform using paired-end sequencing. A total of 33,138 high-quality cells were retained after quality filtering. Our analysis revealed that PGK1 knockdown significantly altered the transcriptional landscape and immune signaling pathways in TNBC cells.
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 GSE341921_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: Single-cell studies usually ship their counts as 10x files (matrix.mtx, barcodes.tsv, features.tsv), an .h5 file, or an .rds / .h5ad object that Seurat or Scanpy can open. Look for those among the supplementary files.

Also filed as BioProject PRJNA1504824 and SRA study SRP722719. Searching any of these in the dataset finder brings you back here.

Study design
3 × shNC vs 3 × shPgk1

Supports a between-group comparison across 6 samples.

How we read this: 2 replicated groups read from 6 sample titles; they account for 6 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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