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Splenic CD169+Tim4+ Marginal Zone Metallophilic Macrophages Are Essential for Wound Healing and Resolution of Inflammation After Myocardial Infarction

GSE210798 Mus musculus (mouse) RNA-seq (gene expression) 24 samples Submitted 2025/06/18 Platform GPL13112
At a glance

RNA-seq (gene expression) · mouse · 24 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
24 samples: 8 conditions, mostly in triplicateGroups 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
Splenic CD169(+)Tim4(+) Marginal Metallophilic Macrophages Are Essential for Wound Healing After Myocardial InfarctionCirculation · 2025
Summary (written by the submitters)
Fidelity of wound healing after myocardial infarction (MI) is an important determinant of subsequent adverse cardiac remodeling and failure. Macrophages derived from infiltrating Ly6Chi blood monocytes are a key component of this healing response; however, the importance of other macrophage populations is unclear. Here, we establish in mice an essential role for splenic CD169+Tim4+ marginal metallophilic macrophages (MMMs) in post-MI wound healing.
Read the full summary ↓
Splenic CD169+Tim4+ MMMs circulate in blood as Ly6Clow cells expressing express core macrophage markers and help populate CD169+Tim4+LYVE1low macrophages in the naïve heart. After acute MI, splenic MMMs augment phagocytosis and robustly mobilize to the heart, resulting in marked expansion of cardiac CD169+Tim4+LyVE1low macrophages with an immunomodulatory and pro-resolving gene signature. These macrophages are obligatory for apoptotic neutrophil clearance, suppression of inflammation, and induction of a reparative macrophage phenotype in the infarcted heart. Splenic MMMs are both necessary and sufficient for post-MI wound healing, and limit late pathological remodeling. Pharmacological expansion of the splenic marginal zone and MMMs during acute MI alleviates inflammation and cardiac remodeling. Finally, humans with acute ST-elevation MI also exhibit expansion of circulating CD169+Tim4+ macrophages. We conclude that splenic CD169+Tim4+ MMMs are required for pro-resolving and reparative responses after MI and can be manipulated for therapeutic benefit to limit long-term heart failure.
Published in
Splenic CD169(+)Tim4(+) Marginal Metallophilic Macrophages Are Essential for Wound Healing After Myocardial Infarction
Ismahil MA, Zhou G, Rajasekar S et al. · Circulation 2025 · PMID 40289811 · doi:10.1161/CIRCULATIONAHA.124.071772
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 GSE210798_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 PRJNA867567 and SRA study SRP390675. Searching any of these in the dataset finder brings you back here.

Study design
8 conditions, mostly in triplicate
Naive_heart_LYVE1high ×3 Naive_heart_LYVE1low ×3 1d_MI_heart_LYVE1high ×3 1d_MI_heart_LYVE1low ×3 Naive_spleen_LYVE1high ×3 Naive_spleen_LYVE1low ×3 1d_MI_spleen_LYVE1high ×3 1d_MI_spleen_LYVE1low ×3

Supports a between-group comparison across 24 samples.

How we read this: 8 replicated groups read from 24 sample titles; they account for 24 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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