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  3. Nuclear receptor coactivator 4 linked to follicular dysplasia in polycystic ovary syndrome: A key regulator that aggravates ovarian granulosa cells ferritinophagy and ferroptosis

Nuclear receptor coactivator 4 linked to follicular dysplasia in polycystic ovary syndrome: A key regulator that aggravates ovarian granulosa cells ferritinophagy and ferroptosis

  • Biochim Biophys Acta Mol Basis Dis. 2025 Jun 17;1871(7):167955. doi: 10.1016/j.bbadis.2025.167955.
Dejian Chen 1,  Yu Wang 2,  Xiaomin Wang 2,  Xiaosa Si 2,  Yajing Weng 3,  Shengbing Liu 2,  Weiwei Pan 2,  Ying Xu 2,  Yong Wang 3,  Yaling Zhang 4
Affiliations

Affiliations

  • 1 School of Medicine, Jiaxing University, Jiaxing 314001, China; Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing 314001, China.
  • 2 School of Medicine, Jiaxing University, Jiaxing 314001, China.
  • 3 State Key Laboratory of Analytical Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing 210093, China.
  • 4 School of Medicine, Jiaxing University, Jiaxing 314001, China. Electronic address: dg1935010@smail.nju.edu.cn.
PMID: 40553994 DOI: 10.1016/j.bbadis.2025.167955
Abstract

Ferroptosis is a type of cell death caused by iron-dependent lipid peroxidation and excessive production of Reactive Oxygen Species (ROS). Hyperandrogen exposure can induce ovarian Ferroptosis in polycystic ovary syndrome (PCOS). However, there is not enough direct evidence regarding ovarian Ferroptosis in PCOS to prove the role of Ferroptosis in PCOS and the underlying mechanism. Nuclear receptor coactivator 4 (NCOA4) expression in ovarian granulosa cells and its mechanism of mediating Ferroptosis have not been studied. In this study, we aimed to investigate how iron overload in ovarian granulosa cells and hyperandrogen exposure-induced Ferroptosis affect ovarian development in a PCOS model. Increased Ferroptosis was observed in hyperandrogenic mice with PCOS and in 5α-dihydrotestosterone (DHT)-induced primary granulosa cells. Iron deposition increased significantly, followed by increased cellular Fe2+ concentration, whereas ROS accumulation, malondialdehyde (MDA), glutathione (GSH), and the glutathione/oxidized glutathione (GSH/GSSG) ratio decreased. NCOA4 and Transferrin Receptor expression increased; however, ferritin heavy chain 1 expression decreased in ovarian tissues. Androgen Receptor and NCOA4 showed increased colocalization in the ovarian granulosa cell layer. Notably, DHT induced Ferroptosis by activating NOCA4-dependent ferritin Autophagy. However, deferoxamine mesylate inhibited Ferroptosis in the ovarian granulosa mice cells, ameliorating the PCOS phenotype. Steroid hormone biosynthesis, arachidonic acid metabolism, and unsaturated fatty acid pathways were most significantly affected, providing a reference for PCOS diagnosis and treatment and corresponding drug development.

Keywords

Ferritinophagy; Ferroptosis; Granulosa cells; Hyperandrogen; NCOA4; Polycystic ovary syndrome.

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