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METTL3 dictates the development of thymocytes via restraining ferroptosis program during age related thymic involution

GSE243187 Mus musculus (mouse) RNA-seq (gene expression) 16 samples Submitted 2025/03/01 Platform GPL24247
At a glance

RNA-seq (gene expression) · mouse · 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
Mus musculus (mouse)
Samples
16 samples: 16 samples, each with a distinct title — no replicated groupsGroups 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.
Paper
METTL3 governs thymocyte development and thymic involution by regulating ferroptosisNature aging · 2024
Summary (written by the submitters)
Thymic involution is a crucial factor in immune system aging and results in age-related impairment of T cell responses. The control of programmed cell death plays a fundamental role in thymocytes development. How thymocytes cell death contribute to thymic involution remains elusive. In this study, we found that METTL3 is highly expressed in double positive (DP) cells from young mice but decreased in aged mice.
Read the full summary ↓
Mice conditionally deficiency for METTL3 in T cells showed thymic involution phenotypes with decreased survival and increased senescent DP cells. Additionally, METTL3 deficiency elicited ferroptosis program rather than other cell death pathways and led to defective DP cell development. Furthermore, GPX4, a molecule that protects cells from ferroptosis, was essential for thymocyte survival and preventing senescence. Mechanistically, GPX4 was maintained by METTL3 at the translation level in METTL3 methyltransferase activity independent manner. Targeting METTL3 and ferroptosis process promoted DP cell survival and reinvigorated aged DP cells. These findings reveal the central role of the METTL3-GPX4-ferroptosis axis in regulating thymocyte homeostasis and identifying targets for impeding age-related thymic involution and diseases.
Published in
METTL3 governs thymocyte development and thymic involution by regulating ferroptosis
Jing H, Song J, Sun J et al. · Nature aging 2024 · PMID 39443728 · doi:10.1038/s43587-024-00724-x
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 GSE243187_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 PRJNA1017361 and SRA study SRP460517. Searching any of these in the dataset finder brings you back here.

Study design
16 samples, each with a distinct title — no replicated groups

Any grouping that defines a comparison lives in the sample characteristics, which GEO records separately from the titles.

How we read this: Read from 16 sample titles: 16 distinct titles with little repetition. 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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