ArticleBiology of reproduction2022
Transcriptomic profiling of neonatal mouse granulosa cells reveals new insights into primordial follicle activation†.
Article in Biology of reproduction, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 13 citations in OpenAlex.
- OGDH mediates α-ketoglutarate-induced follicular development and antioxidative response by interacting with CAT/SOD2.Biological research · 2026Article
- Dysregulated post‑translational modifications in granulosa cells drive ovarian dysfunction and potential infertility applications (Review).International journal of molecular medicine · 2026Review
- Searching for the 'X' factor: investigating the genetics of primary ovarian insufficiency.Journal of ovarian research · 2024Review
- Making a good egg: human oocyte health, aging, and in vitro development.Physiological reviews · 2023Review
- Cocktails of NSAIDs and 17α Ethinylestradiol at Environmentally Relevant Doses in Drinking Water Alter Puberty Onset in Mice Intergenerationally.International journal of molecular sciences · 2023Article
- Single-cell transcriptomics of staged oocytes and somatic cells reveal novel regulators of follicle activation.Reproduction (Cambridge, England) · 2022Article
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Authors and funding
6 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The dormant population of ovarian primordial follicles is determined at birth and serves as the reservoir for future female fertility. Yet our understanding of the molecular, biochemical, and cellular processes underpinning primordial follicle activation remains limited. The survival of primordial follicles relies on the correct complement and morphology of granulosa cells, which provide signaling factors essential for oocyte and follicular survival. To investigate the contribution of granulosa cells in the primordial-to-primary follicle transition, gene expression profiles of granulosa cells undergoing early differentiation were assessed in a murine model. Ovaries from C57Bl/6 mice were enzymatically dissociated at time-points spanning the initial wave of primordial follicle activation. Post-natal day (PND) 1 ovaries yielded primordial granulosa cells, and PND4 ovaries yielded a mixed population of primordial and primary granulosa cells. The comparative transcriptome of granulosa cells at these time-points was generated via Illumina NextSeq 500 system, which identified 131 significantly differentially expressed transcripts. The differential expression of eight of the transcripts was confirmed by RT-qPCR. Following biological network mapping via Ingenuity Pathway Analysis, the functional expression of the protein products of three of the differentially expressed genes, namely FRZB, POD1, and ZFX, was investigated with in-situ immunolocalization in PND4 mouse ovaries was investigated. Finally, evidence was provided that Wnt pathway antagonist, secreted frizzled-related protein 3 (FRZB), interacts with a suppressor of primordial follicle activation WNT3A and may be involved in promoting primordial follicle activation. This study highlights the dynamic changes in gene expression of granulosa cells during primordial follicle activation and provides evidence for a renewed focus into the Wnt signaling pathway's role in primordial follicle activation.
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