ArticleBiomedicines2023
Abnormal Expression of Prolyl Oligopeptidase (POP) and Its Catalytic Products Ac-SDKP Contributes to the Ovarian Fibrosis Change in Polycystic Ovary Syndrome (PCOS) Mice.
Article in Biomedicines, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 7 citations in OpenAlex.
- The stromal microenvironment of ovary: a novel area in polycystic ovary syndrome.Journal of ovarian research · 2026Review
- Molecular mechanisms of ovarian fibrosis.Molecular human reproduction · 2026Review
- Synergistic Impact of Obesity and PCOS on Immune Dysregulation: A Review of Systemic and Local Inflammatory Profiles.International journal of women's health · 2026Review
- Effects of polycystic ovary syndrome on liver, heart, muscle, and pancreatic-related diseases.Frontiers in endocrinology · 2026Review
- Lobetyolin reshapes gut microbiota and bile acid metabolism to improve androgen-driven PCOS phenotypes in mice.Frontiers in microbiology · 2026Article
- Pirfenidone reduces ovarian fibrosis and improves PCOS in letrozole-induced rat model.Biomolecules & biomedicine · 2025Article
- LncPrep + 96kb inhibits ovarian fibrosis by upregulating prolyl oligopeptidase expression.Molecular medicine reports · 2025Article
- Efficacy and Safety of Human Umbilical Cord Mesenchymal Stem Cells in Improving Fertility in Polycystic Ovary Syndrome Mice.Current stem cell research & therapy · 2025Article
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Authors and funding
10 authors at 1 institution in 1 country.
Funding
Abstract
Polycystic ovary syndrome (PCOS) is an endocrine disorder and metabolic syndrome. Ovarian fibrosis pathological change in PCOS has gradually attracted people's attention. In this study, we constructed a PCOS mouse model through the use of dehydroepiandrosterone. Sirius red staining showed that the ovarian tissues in PCOS mice had obvious fibrosis. Prolyl oligopeptidase (POP) is a serine protease and N-acetyl-seryl-aspartyl-lysyl-proline (Ac-SDKP) is its catalytic product. Studies show that abnormal expression and activity of POP and Ac-SDKP are closely related to tissue fibrosis. It was found that the expression of POP and Ac-SDKP was decreased in the ovaries of PCOS mice. Further studies showed that POP and Ac-SDKP promoted the expression of matrix metalloproteinases 2 (MMP-2) expression and decreased the expression of transforming growth factor beta 1 (TGF-β1) in granulosa cells. Hyperandrogenemia is a typical symptom of PCOS. We found that testosterone induced the low expression of POP and MMP2 and high expression of TGF-β1 in granulosa cells. POP overexpression and Ac-SDKP treatment inhibited the effect of testosterone on TGF-β1 and MMP2 in vitro and inhibited ovarian fibrosis in the PCOS mouse model. In conclusion, PCOS ovarian tissue showed obvious fibrosis. Low expression of POP and Ac-SDKP and changes in fibrotic factors contribute to the ovarian pathological fibrosis induced by androgen.
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