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Depletion of MFF from oocytes impairs mitochondrial dynamics, leading to inhibited oocyte maturation and early embryonic development in mice

GSE285731 Mus musculus (mouse) RNA-seq (gene expression) 14 samples Submitted 2026/01/01 Platform GPL30215
At a glance

RNA-seq (gene expression) · mouse · 14 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
14 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.
Summary (written by the submitters)
To investigate the effect of mitochondrial fission factor (MFF) on oocyte competence and female fertility using an oocyte-specific Mff knockout mouse model. Oocyte-specific Mff deficiency hindered oocyte maturation and early embryonic development via regulation of mitochondrial dynamics, resulting in female subfertility. What is known already: Emerging studies have demonstrated that mitochondrial dynamics play a vital role in oocyte maturation and early embryo development.
Read the full summary ↓
MFF is one of the crucial proteins regulating mitochondrial dynamics. Our previous studies have indicated that Mff is necessary for oocyte competence and fertility using a global Mff knockout mouse model. However, further investigation is needed to determine whether the deletion of Mff in oocytes could affect oocyte competence and early embryonic development by regulating mitochondrial dynamics.The Mfffl/fl; Gdf9-Cre mice consistently exhibited reduced fertility with a significant decrease in litter size, number of litters per female, and number of pups per female compared to the Mfffl/fl mice. The numbers of GV oocytes, ovulated oocytes and 2-cell embryos were significantly lower in the Mfffl/fl; Gdf9-Cre mice. The blastocyst (32.32% vs. 68.44%, p<0.05) embryo development rate per 2-cell embryos was also significantly lower. In vitro maturation revealed that of Mfffl/fl; Gdf9-Cre GV oocytes had significantly lower rates of GV break-down and polar body extrusion . The ratios of aberrant spindle and misaligned chromosomesin ovulated oocytes from Mfffl/fl; Gdf9-Cre mice were significantly increased. In terms of mitochondrial dynamics, the mitochondrial size and the ratio of abnormal mitochondrial distribution (unevenly aggregated) in Mfffl/fl; Gdf9-Cre oocytes significantly elevated. This study found that the Mff played a crucial role in oocyte maturation and early embryonic development. These results shed light on the important role played by MFF in ensuring proper mitochondrial dynamics in oocytes and underscore the significance of this protein in female fertility. This study provides insights into potential therapeutic targets for infertility and related diseases in humans.
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 GSE285731_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 PRJNA1205725 and SRA study SRP554973. Searching any of these in the dataset finder brings you back here.

Samples in this study

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