Abstract
Polycystic ovary syndrome (PCOS) is a complex gynaecological endocrine disease that occurs in women of childbearing age. The pathogenesis of PCOS is still unclear and further exploration is needed. Here, proteomic analysis indicated that the expression of farnesyl diphosphate synthase (FDPS) protein in ovarian tissue of PCOS mice was significantly decreased. The purpose of this study is to investigate the relationship between potential biomarkers of PCOS and granulosa cells (GCs) function. The mechanisms by which FDPS affected the proliferation of granulosa cells were also explored both in vitro and in vivo. We found that knockdown of FDPS inhibited the proliferation of KGN (human ovarian granulosa cell line), while overexpression of FDPS had the opposite effect. FDPS activated Rac1 (Rac Family Small GTPase 1) activity and regulated MAPK/ERK signalling pathway, which affecting the proliferation of KGN cells significantly. In addition, treatment with the adeno-associated virus (AAV)-FDPS reverses the dehydroepiandrosterone (DHEA)-induced PCOS-phenotype in mice. Our data indicated that FDPS could regulate the proliferation of ovarian GCs by modulating MAPK/ERK (mitogen-activated protein kinase/extracellular regulated protein kinases) pathway via activating Rac1 activity. These findings suggest that FDPS could be of great value for the regulation of ovarian granulosa cell function and the treatment of PCOS.
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The data that support the findings of this study are available from the corresponding author upon reasonable request.
Abbreviations
- PCOS:
-
Polycystic ovary syndrome
- FDPS:
-
Farnesyl diphosphate synthase
- AAV:
-
Adeno-associated virus
- KGN:
-
Human ovarian granulosa cell line
- RAC1:
-
Rac family small GTPase 1
- MAPK:
-
Mitogen-activated protein kinase
- ERK:
-
Extracellular regulated protein kinases
- LH:
-
Luteinizing hormone
- FSH:
-
Follicle-stimulating hormone
- GnRH:
-
Gonadotropin-releasing hormone
- AMH:
-
Anti-Mullerian hormone
- DHEA:
-
Dehydroepiandrosterone
- GCs:
-
Granulosa cells
- DEPs:
-
Differentially expressed proteins
- GO:
-
Gene ontology
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Acknowledgements
We thank all volunteers in this study for their cooperation and the support of gynaecologists in Xuzhou Central Hospital.
Funding
This work was supported by the Natural Science Foundation of China [No. 82173883]; the Science and Technology Foundation of Xuzhou [No. KC22469]; the Natural Science Foundation of the Jiangsu Higher Education Institutions of China [No. 18KJA350002]; the Natural Science Foundation of Jiangsu Province [No. BK20181470]; the Provincial Commission of Health and Family Planning in Jiangsu Province [No. H2017079]; and the Science and Technology Planning Project of Jiangsu Province [No. BE2019636].
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Xl G and Yj C were involved in the experimental design and performed the data analysis. Xl G and Yj C contributed equally to this work and were considered co-first authors. Q H, NL C, Q W, Bj Z and Wq L were equally involved in experimental design, performing the experiments, and data analysis. Xl G edited the manuscript. B Z and Xy Z contributed scientific ideas and revised the manuscript. B Z and Xy Z led the entire study as corresponding authors. All the authors have read and approved the final manuscript.
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The study was registered in the Chinese Clinical Trial Register in 2022 (ChiCTR2300067599) and was performed in accordance with the Helsinki Declaration; the protocol was approved by the Ethics Committee of Xuzhou Central Hospital. The animal study was approved by the Animal Ethics Committee of Xuzhou Medical University (Approval No. 202301T004) and followed the National Institutes of Health guidelines.
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Guo, X., Cao, Y., He, Q. et al. Modulation of the RAC1/MAPK/ERK signalling pathway by farnesyl diphosphate synthase regulates granulosa cells proliferation in polycystic ovary syndrome. Human Cell 37, 689–703 (2024). https://doi.org/10.1007/s13577-024-01050-5
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DOI: https://doi.org/10.1007/s13577-024-01050-5