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Aging modulates the immunosuppressive, polarizing and metabolic functions of blood-derived myeloid-derived suppressor cells (MDSCs)

GSE279455 Homo sapiens (human) RNA-seq (gene expression) 16 samples Submitted 2025/05/13 Platform GPL28038
At a glance

RNA-seq (gene expression) · human · 16 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
16 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
Aging modulates the immunosuppressive, polarizing and metabolic functions of blood-derived myeloid-derived suppressor cells (MDSCs)Immunity & ageing : I & A · 2025
Summary (written by the submitters)
With aging, the immune system undergoes immunosenescence, accompanied by chronic low-grade inflammation (inflammaging). Balanced immunity relies on effector and regulatory cells, with myeloid-derived suppressor cells (MDSCs) playing a key regulatory role. MDSCs, a heterogeneous population of immature myeloid cells, develop under inflammatory conditions and primarily suppress T cell activity.
Read the full summary ↓
The age-dependent increase in myelopoiesis and inflammation, along with reduced immune reactivity, suggests that changes in the number and function of regulatory cells, such as MDSCs, might strongly contribute to age-related modifications of immune responses. While studies in mice have demonstrated an age-related increase in MDSC numbers, human studies have predominantly focused on cancer patients, making it challenging to separate the effects of aging and cancer on MDSC induction. Therefore, we analyzed MDSC increases in older individuals without a history of cancer. Furthermore, we excluded patients with neurodegenerative, cardiovascular or autoimmune diseases. We found a significant increase in circulating MDSCs in old donors. In addition, in vitro generated, blood-derived MDSCs from old donors exhibited enhanced immunosuppressive and Th2 polarizing capacity. RNA sequencing indicated age-related metabolic changes. These findings highlight that age-related changes in MDSCs contribute to dysregulated immune functions during aging.
Published in
Aging modulates the immunosuppressive, polarizing and metabolic functions of blood-derived myeloid-derived suppressor cells (MDSCs)
Keltsch E, Greiner J, Wahl L et al. · Immunity & ageing : I & A 2025 · PMID 40629365 · doi:10.1186/s12979-025-00524-w
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 GSE279455_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 PRJNA1172731 and SRA study SRP538504. Searching any of these in the dataset finder brings you back here.

Samples in this study

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