Transcriptome and DNA methylation profiling during the NSN to SN transition in mouse oocytes
2025

Changes in Mouse Oocytes During Development

Sample size: 37 publication 10 minutes Evidence: moderate

Author Information

Author(s): Demond Hannah, Khan Soumen, Castillo-Fernandez Juan, Hanna Courtney W., Kelsey Gavin

Primary Institution: Babraham Institute, Cambridge, UK

Hypothesis

What are the transcriptome and DNA methylation changes during the NSN to SN transition in mouse oocytes?

Conclusion

The study identifies significant changes in the transcriptome and DNA methylation during the NSN to SN transition in mouse oocytes.

Supporting Evidence

  • 576 genes were downregulated during the NSN to SN transition.
  • SN oocytes showed increased DNA methylation compared to NSN oocytes.
  • A classifier was developed to infer chromatin status in RNA-seq datasets.
  • Gene ontology analysis revealed enrichment for mRNA processing in downregulated genes.

Takeaway

This study looks at how mouse eggs change as they grow, focusing on their genes and DNA marks.

Methodology

Single-cell RNA sequencing and bisulfite sequencing were used to analyze transcriptome and DNA methylation changes.

Potential Biases

Potential biases may arise from the selection of oocytes and the methods used for sequencing.

Limitations

The study's findings may not fully capture the complexity of oocyte development due to the limited sample size.

Participant Demographics

Mouse oocytes from C57Bl6/Babr mice were used in the study.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/s12860-024-00527-3

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