← BioTransfer GEO Dataset Finder
GEO series

Cysteine and Glycine Rich Protein 3 (Csrp3) modulates cardiomyocyte mitotic cell cycle entry through Ring Finger Protein 5 (Rnf5)/p38 MAPK dependent pathway

GSE342169 Mus musculus (mouse) RNA-seq (gene expression) 12 samples Submitted 2026/08/05 Platform GPL34290
At a glance

RNA-seq (gene expression) · mouse · 12 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
12 samples: 3 × WT P1 sample vs 3 × Csrp3 KO P1 sample vs 3 × WT P21 sample vs 3 × Csrp3 KO P21 sampleGroups 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)
Adult cardiomyocyte (CM) has limited proliferative capacity, which is correlated with rigid sarcomere structures. Our previous studies showed that overexpression of Cdk1, Cdk4, Ccnb, and Ccnd (collectively 4F) induces adult CM proliferation with observed sarcomere disassembly during mitosis. However, it is unclear how the sacrcomeres disassemble during mitosis and whether sarcomere disassembly alone could enhance mitotic cell cycle entry in CMs.
Read the full summary ↓
In this study we identified CSRP3 that is highly expressed in adult CM, as a structural checkpoint that links sarcomere integrity to ubiquitination-dependent regulation of CM cell cycle progression. Temporal proteomics and ubiquitin linked proteomics in CMs transduced with control or 4F adenovirus for 24h (early cell cycle entery), 48h (mitosis dominant), and 72h ( end of cell cycle) revealed that CSRP3, a Z-disk–associated protein interacting with T-Cap and α-actinin, was the most downregulated sarcomeric protein during mitosis, returning to baseline at the end of the cell cycle. Csrp3 Knockdown (KD) results in sarcomere disassembly and promotes CM mitotic entry in adult human heart slices, evidenced by a significant increase in PHH3-positive nuclei, a marker for G2/M phase, with no major impact on DNA synthesis. In MADM mice, Csrp3 KD results in a significant increase in single coloured cells which indicates complete CM cell division confirming the role of Csrp3 in modulating mitosis in CMs. In vivo, 21 day old (P21) Csrp3KO mice hearts showed a significant increase in mononucleation, proliferation markers and cell cycle gene expression. Mechanistically, RNAseq from P21 Csrp3KO mice hearts demonstrated increased expression of Rnf5, an E3 ubiquitin ligase. The upregulated Rnf5 resulted in significant reduction in p38 MAPK protein expression, hence promotes mitotic entry. Moreover, Rnf5 overexpression in human heart slices results in activation of CM cell cycle while Rnf5 KD in naturally proliferating neonatal P1 CM reduced cell cycle activity. In conclusion, our findings identify CSRP3 as a structural checkpoint that couples sarcomere integrity to Ring Finger Protein 5 (RNF5)-mediated ubiquitination of p38 MAPK, thereby controlling CM mitotic entery and uncovering a previously unrecognized mechanism governing cardiac regenerative potential.
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 GSE342169_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 PRJNA1505726 and SRA study SRP723308. Searching any of these in the dataset finder brings you back here.

Study design
3 × WT P1 sample vs 3 × Csrp3 KO P1 sample vs 3 × WT P21 sample vs 3 × Csrp3 KO P21 sample

Supports a between-group comparison across 12 samples.

How we read this: 4 replicated groups read from 12 sample titles; they account for 12 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
Datasets on a similar topic

Search all mouse RNA-seq datasets in GEO →

Share this dataset

Metadata from NCBI GEO, cached and refreshed periodically — the NCBI page above is authoritative. Downloads link straight to NCBI/ENA; nothing is proxied through BioTransfer.