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Ascorbic acid increases CD8+ T cells by binding Myh9 protein and enriching gut microbiota Akkermansia muciniphila, improves cognitive levels in middle-aged mice [scRNA-seq]

GSE262964 Mus musculus (mouse) Single-cell RNA-seq 3 samples Submitted 2025/12/04 Platform GPL28457
At a glance

Single-cell RNA-seq · mouse · 3 samples

What it is
Single-cell RNA-seqGene activity measured in thousands of individual cells, so cell types can be told apart.
Organism
Mus musculus (mouse)
Samples
3 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
Ascorbic acid attenuates immunosenescence and cognitive decline via MYH9-Mediated CD8⁺ T cell differentiationImmunity & ageing : I & A · 2025
Summary (written by the submitters)
Immunosenescence hastens the process of systemic aging and impacts cognitive function, with antioxidants potentially ameliorating these consequences. This research systematically assessed the impact of ascorbic acid (vitamin C) on immunosenescence and cognitive function in middle-aged and elderly mice. The findings demonstrated a notable rise in peripheral blood lymphocytes, a decline in myeloid immune cells, and enhanced cognitive performance.
Read the full summary ↓
In vitro studies indicated that ascorbic acid facilitated the differentiation of mouse hematopoietic stem cells (HSCs) and spleen monocytes into CD8+ T cells, with its efficacy primarily mediated by its interaction with the binding protein Myh9. Additionally, a positive correlation was observed between CD8+ T cells and cognitive function. Furthermore, a distinction exists between the efficacy of oral and intravenous administration of ascorbic acid in enhancing cognitive function, potentially attributable to the modulation of the gut microbiome Akkermansia muciniphila. Intravenous delivery notably enhances A. muciniphila abundance and significantly enhances cognitive performance in middle-aged and elderly mice, whereas oral ascorbic acid supplementation increases CD8+ T cell count and cognitive function in this demographic only when co-administered with A. muciniphila. This study demonstrated that the administration of ascorbic acid can mitigate immunosenescence and, in conjunction with A. muciniphila, improve cognitive function in mice. These findings offer a mechanistic rationale for utilizing immunomodulatory interventions to enhance cognitive function, underscoring the significance of selecting the optimal route of administration for achieving the intended effects.
Published in
Ascorbic acid attenuates immunosenescence and cognitive decline via MYH9-Mediated CD8⁺ T cell differentiation
Mi T, Yang S, Wang N et al. · Immunity & ageing : I & A 2025 · PMID 41194177 · doi:10.1186/s12979-025-00538-4
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 GSE262964_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 PRJNA1095006 and SRA study SRP499086. Searching any of these in the dataset finder brings you back here.

Samples in this study

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