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Wu Z, Xiao C, Wang J, Zhou M, You F, Li X. 17β-estradiol in colorectal cancer: friend or foe? Cell Commun Signal 2024; 22:367. [PMID: 39030619 DOI: 10.1186/s12964-024-01745-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 07/10/2024] [Indexed: 07/21/2024] Open
Abstract
Colorectal cancer (CRC) is a common gastrointestinal malignancy with higher incidence and mortality rates in men compared to women, potentially due to the effects of estrogen signaling. There is substantial evidence supporting the significant role of 17β-Estradiol (E2) in reducing CRC risk in females, although this perspective remains debated. E2 has been demonstrated to inhibit CRC cell proliferation and migration at the cellular level by enhancing DNA mismatch repair, modulating key gene expression, triggering cell cycle arrest, and reducing activity of migration factors. Furthermore, E2 contributes to promote a tumor microenvironment unfavorable for CRC growth by stimulating ERβ expression, reducing inflammatory responses, reversing immunosuppression, and altering the gut microbiome composition. Conversely, under conditions of high oxidative stress, hypoxia, and nutritional deficiencies, E2 may facilitate CRC development through GPER-mediated non-genomic signaling. E2's influence on CRC involves the genomic and non-genomic signals mediated by ERβ and GPER, respectively, leading to its dual roles in anticancer activity and carcinogenesis. This review aims to summarize the potential mechanisms by which E2 directly or indirectly impacts CRC development, providing insights into the phenomenon of sexual dimorphism in CRC and suggesting potential strategies for prevention and treatment.
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Affiliation(s)
- Zihong Wu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China
| | - Chong Xiao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China
| | - Jiamei Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China
| | - Min Zhou
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University (Chongqing Health Center for Women and Children), Chongqing, 401147, China
| | - Fengming You
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China.
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China.
- Oncology Teaching and Research Department of Chengdu, University of Traditional Chinese Medicine, Chengdu, 610072, China.
| | - Xueke Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China.
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China.
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Wang Z, Zhang W, Huang D, Kang H, Wang J, Liu Z, Jiang G, Gao A. Cuproptosis is involved in decabromodiphenyl ether-induced ovarian dysfunction and the protective effect of melatonin. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 352:124100. [PMID: 38714232 DOI: 10.1016/j.envpol.2024.124100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 04/24/2024] [Accepted: 05/01/2024] [Indexed: 05/09/2024]
Abstract
Decabromodiphenyl ether (BDE-209) has been universally detected in environmental media and animals, but its damage to ovarian function and mechanism is still unclear, and melatonin has been shown to improve mammalian ovarian function. This study aimed to investigate the toxic effects of BDE-209 on the ovary and tried to improve ovarian function with melatonin. Herein, BDE-209 was administered orally to female SD rats for 60 days. Enzyme-linked immunosorbent assay, HE staining, transcriptome analysis, qPCR and immunohistochemical staining were used to explore and verify the potential mechanism. We found that BDE-209 exposure had effects on the ovary, as shown by abnormal changes in the estrous cycle, hormone levels and ovarian reserve function in rats, while increasing the proportion of collagen fibres in ovarian tissue. In terms of mechanism, cuproptosis, a form of cell death, was identified to play a crucial role in BDE-209-induced ovarian dysfunction, with the phenotype manifested as copper salt accumulation in ovary, downregulation of glutathione pathway metabolism and copper transfer molecule (ATP7A/B), and upregulation of FDX1, lipoic acid pathway (LIAS, LIPT1), pyruvate dehydrogenase complex components (DLAT, PDHB, PDHA1), and copper transfer molecule (SLC31A1). Furthermore, possible interventions were explored. Notably, a supplement with melatonin has a repair effect on the damage to ovarian function by reversing the gene expression of cuproptosis-involved molecules. Overall, this study revealed that cuproptosis is involved in BDE-209-induced ovarian damage and the beneficial effect of melatonin on ovarian copper damage, providing evidence for the prevention and control of female reproductive damage induced by BDE-209.
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Affiliation(s)
- Ziyan Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Wei Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Danyang Huang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Huiwen Kang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Jingyu Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Ziyan Liu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Guangyu Jiang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Ai Gao
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China.
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Zhao Y, Lan Y, Liu L, Hao J, Wang H, Ji L. Efficacy of acupuncture in animal models of various ovarian dysfunctions: a systematic review and meta-analysis. Front Med (Lausanne) 2024; 11:1348884. [PMID: 38966526 PMCID: PMC11222413 DOI: 10.3389/fmed.2024.1348884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 06/03/2024] [Indexed: 07/06/2024] Open
Abstract
Objective This study aims to assess the comprehensive and integrated modulatory effects of acupuncture and electroacupuncture on various ovarian dysfunctions. Methods We systematically searched for articles on animal experiments related to polycystic ovary syndrome (PCOS), premature ovarian failure (POF), premature ovarian insufficiency (POI), and perimenopausal syndrome (PMS) across multiple databases, including PubMed, Web of Science, Cochrane Library, Embase, and four Chinese language databases. The search covered the period from inception to November 2023. We conducted a comparative analysis between the acupuncture group and the model group (untreated) based on eligible literature. Our primary outcomes encompassed serum sex hormones (Luteinizing hormone, Follicle-stimulating hormone, Testosterone, Estradiol, Progesterone, and Anti-Müllerian hormone) and ovarian weight. Dichotomous data were synthesized to establish the relative risk (RR) of notable post-treatment improvement, while continuous data were pooled to determine the standardized mean difference (SMD) in post-treatment scores between the groups. Statistical analyses, including sensitivity analysis, Egger's test, and the trim-and-fill method, were executed using Stata 15.0 software. Results The meta-analysis encompassed 29 articles involving a total of 623 rats. In comparison to rat models of PCOS, the experimental group exhibited a reduction in serum levels of LH, T and LH/FSH ratio. However, no statistically significant differences were observed in AMH, FSH, E2 levels, and ovarian weight between the two groups. In the ovarian hypoplasia model rats, both acupuncture and electroacupuncture interventions were associated with an increase in E2 levels. However, the levels of LH and FSH did not exhibit a significant difference between the two groups. Conclusions Acupuncture or electroacupuncture facilitates the restoration of ovarian function primarily through the modulation of serum sex hormones, exerting regulatory effects across various types of ovarian dysfunction disorders. Systematic review registration https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022316279.
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Affiliation(s)
- Yuemeng Zhao
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
| | - Ying Lan
- Prevention and Treatment Center Department, Chengdu University of Traditional Chinese Medicine Affiliated Hospital, Chengdu, Sichuan Province, China
| | - Liying Liu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
| | - Jianheng Hao
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
| | - Haijun Wang
- Acupuncture and Tuina School, Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi Province, China
| | - Laixi Ji
- Acupuncture and Tuina School, Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi Province, China
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Vieyra E, Calderón R, Linares R, Rosas G, Ramírez DA, Espinoza JA, Chaparro A, Silva CC, Domínguez R, Morales-Ledesma L. Pharmacologic blockade of nicotinic receptors in the suprachiasmatic nucleus increases ovarian atresia and inhibits follicular growth. J Neuroendocrinol 2024:e13421. [PMID: 38826071 DOI: 10.1111/jne.13421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/16/2024] [Accepted: 05/21/2024] [Indexed: 06/04/2024]
Abstract
Reproduction in all mammalian species depends on the growth and maturation of ovarian follicles, that is, folliculogenesis. Follicular development can culminate with the rupture of mature follicles and the consequent expulsion of their oocytes (ovulation) or in atresia, characterized by the arrest of development and eventual degeneration. These processes are regulated by different neuroendocrine signals arising at different hypothalamic nuclei, including the suprachiasmatic nucleus (SCN). In the later, the activation of muscarinic receptors (mAChRs) and nicotinic receptors (nAChRs) by acetylcholine is essential for the regulation of the pre-ovulatory signals that stimulate the rupture of mature follicles. To evaluate the participation of the nAChRs in the SCN throughout the oestrous cycle in the regulation of the hypothalamic-pituitary-ovarian axis. For this purpose, 90-day-old adult female rats in metoestrus, dioestrus, proestrus or oestrus were microinjected into the left- or right-SCN with 0.3 μL of saline solution as vehicle or with 0.225 μg of mecamylamine (Mec), a non-selective antagonist of the nicotinic receptors, diluted in 0.3 μL of vehicle. The animals were sacrificed when they presented vaginal cornification, indicative of oestrus stage, and the effects of the unilateral pharmacological blockade of the nAChRs in the SCN on follicular development, ovulation and secretion of oestradiol and follicle-stimulating hormone (FSH) were evaluated. The microinjection of Mec decreased the serum levels of FSH, which resulted in a lower number of growing and healthy follicles and an increase in atresia. The higher percentage of atresia in pre-ovulatory follicles was related to a decrease in the number of ova shed and abnormalities in oestradiol secretion. We also detected asymmetric responses between the left and right treatments that depended on the stage of the oestrous cycle. The present results allow us to suggest that during all the stages of the oestrous cycle, cholinergic signals that act on the nAChRs in the SCN are pivotal to modulate the secretion of gonadotropins and hence the physiology of the ovaries. Further research is needed to determine if such signals are generated by the cholinergic neurons in the SCN or by cholinergic afferents to the SCN.
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Affiliation(s)
- Elizabeth Vieyra
- Physiology of Reproduction Laboratory, Biology of Reproduction Research Unit, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
- Chronobiology of Reproduction Research Lab, Biology of Reproduction Research Unit, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Roberto Calderón
- Physiology of Reproduction Laboratory, Biology of Reproduction Research Unit, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
- Chronobiology of Reproduction Research Lab, Biology of Reproduction Research Unit, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Rosa Linares
- Laboratorio de Endocrinología, Biology of Reproduction Research Unit, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Gabriela Rosas
- Physiology of Reproduction Laboratory, Biology of Reproduction Research Unit, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Deyra A Ramírez
- Facultad de Estudios Superiores Zaragoza Campus III, UNAM, Tlaxcala, Mexico
| | - Julieta A Espinoza
- Physiology of Reproduction Laboratory, Biology of Reproduction Research Unit, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Andrea Chaparro
- Physiology of Reproduction Laboratory, Biology of Reproduction Research Unit, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Carlos-Camilo Silva
- Chronobiology of Reproduction Research Lab, Biology of Reproduction Research Unit, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Roberto Domínguez
- Chronobiology of Reproduction Research Lab, Biology of Reproduction Research Unit, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Leticia Morales-Ledesma
- Physiology of Reproduction Laboratory, Biology of Reproduction Research Unit, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
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Cera N, Pinto J, Pignatelli D. The Role of Oxytocin in Polycystic Ovary Syndrome: A Systematic Review. Curr Issues Mol Biol 2024; 46:5223-5241. [PMID: 38920985 PMCID: PMC11201948 DOI: 10.3390/cimb46060313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/21/2024] [Accepted: 05/23/2024] [Indexed: 06/27/2024] Open
Abstract
Polycystic Ovary Syndrome (PCOS) is the most common endocrine disorder that affects women of reproductive age, representing the primary cause of anovulatory infertility. The nonapeptide oxytocin (OT) plays an important role in cognitive, emotional, and reproductive functions in human beings. Oxytocin receptors are expressed in several body parts, including the ovaries. Despite this, the possible role played by oxytocin in symptoms of PCOS is not clear. The present systematic review aimed at understanding the presence of possible oxytocin level alterations in PCOS, the connection between alterations of OT levels and the symptoms of PCOS, and the effect of oxytocin administration in PCOS. After a systematic search in the principal databases, eight studies, five human and three animal, were included. Four human studies and one animal study highlighted the role played by oxytocin in fertility issues related to PCOS. Three human and two animal studies investigated the role of body weight and OT levels. Studies that analyzed oxytocin basal levels in women agreed that PCOS is associated with a reduction in the serum level of oxytocin. Two human studies and one animal study agreed about lower levels of oxytocin, confirming a possible implication of the dysfunction of OT in the pathogenesis of PCOS.
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Affiliation(s)
- Nicoletta Cera
- Faculty of Psychology and Education Sciences, University of Porto, 4099-002 Porto, Portugal;
- Research Unit in Medical Imaging and Radiotherapy, Cross I&D Lisbon Research Centre, Escola Superior de Saúde da Cruz Vermelha Portuguesa, 1300-125 Lisbon, Portugal
| | - Joana Pinto
- Faculty of Psychology and Education Sciences, University of Porto, 4099-002 Porto, Portugal;
- Faculty of Medicine, University of Porto, 4099-002 Porto, Portugal;
| | - Duarte Pignatelli
- Faculty of Medicine, University of Porto, 4099-002 Porto, Portugal;
- Department of Endocrinology, Centro Hospitalar Universitário de São João, 4200-319 Porto, Portugal
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龚 雪, 黄 金, 黄 志. [Research Progress in the Role of Mitochondrial Dysfunction in Endometriosis-Associated Infertility]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2024; 55:521-526. [PMID: 38948278 PMCID: PMC11211786 DOI: 10.12182/20240560404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Indexed: 07/02/2024]
Abstract
Endometriosis (EMT), a common benign gynecological disease, is a leading cause of infertility in women. EMT affects female fertility in various aspects. However, the underlying mechanisms have not been fully elucidated. Mitochondria are known as the "powerhouse" of a cell. They play pivotal roles in the physiological processes of cellular energy metabolism, calcium homeostasis, oxidative stress, autophagy, the regulation of cell cycle, and cell death, and are involved in the pathophysiology of many diseases. Cellular mitochondria are highly dynamic, continuously undergoing cyclic fission and fusion to meet the demands of cellular activities. Balanced mitochondrial dynamics are critical for maintaining normal reproductive function in women. In addition, mitochondria are the major source of reactive oxygen species (ROS). Cell damage, cell death, and fibrosis mediated by the imbalance in the oxidative-antioxidant system in EMT patients lead to decreased oocyte quality and ovarian reserve. Currently, the treatment of EMT-associated infertility remains a challenging and controversial topic. We herein reviewed the latest findings on the role of mitochondrial dysfunction in EMT-associated infertility and the potential therapeutic targets.
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Affiliation(s)
- 雪 龚
- 香港中文大学医学院 妇产科学系 (香港 999077)Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
| | - 金 黄
- 香港中文大学医学院 妇产科学系 (香港 999077)Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
| | - 志超 黄
- 香港中文大学医学院 妇产科学系 (香港 999077)Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
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Vitale F, Cacciottola L, Camboni A, Houeis L, Donnez J, Dolmans MM. Assessing the effect of adipose-tissue-derived stem cell conditioned medium on follicles and stromal cells in bovine ovarian tissue culture. Reprod Biomed Online 2024; 49:103938. [PMID: 38759499 DOI: 10.1016/j.rbmo.2024.103938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/31/2024] [Accepted: 03/05/2024] [Indexed: 05/19/2024]
Abstract
RESEARCH QUESTION Does adipose-tissue-derived stem cell conditioned medium (ASC-CM) supplementation enhance follicle and stromal cell outcomes in vitro? DESIGN Bovine ovaries (n = 8) were sectioned and cultured in vitro for 8 days in two different groups: (i) standard culture (OT Ctrl D8); and (ii) culture with ASC-CM supplementation (OT + CM D8). Half of the culture medium was replaced every other day, and stored to measure the production of oestradiol. Follicle classification was established using haematoxylin and eosin staining. Follicle and stromal cell DNA fragmentation was assessed by TUNEL assays, while growth differentiation factor-9 (GDF-9) staining served as a marker of follicle quality. Additionally, three factors, namely vascular endothelial growth factor (VEGF), interleukin 6 (IL-6) and transforming growth factor beta 1 (TGF-β1), were evaluated in ASC-CM in order to appraise the potential underlying mechanisms of action of ASC. RESULTS The OT + CM D8 group showed a significantly higher proportion of secondary follicles (P = 0.02) compared with the OT Ctrl D8 group. The OT + CM D8 group also demonstrated significantly lower percentages of TUNEL-positive follicles (P = 0.014) and stromal cells (P = 0.001) compared with the OT Ctrl D8 group. Furthermore, follicles in the OT + CM D8 group exhibited a significant increase (P = 0.002) in expression of GDF-9 compared with those in the OT Ctrl D8 group, and oestradiol production was significantly higher (P = 0.04) in the OT + CM D8 group. All studied factors were found to be present in ASC-CM. VEGF and IL-6 were the most widely expressed factors, while TGF-β1 showed the lowest expression. CONCLUSIONS Addition of ASC-CM to culture medium enhances follicle survival, development and oestradiol production, and promotes the viability of stromal cells. VEGF, IL-6 and TGF-β1 could be paracrine mediators underlying the beneficial effects.
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Affiliation(s)
- Francisco Vitale
- Gynaecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Luciana Cacciottola
- Gynaecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Alessandra Camboni
- Gynaecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium; Pathology Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Lara Houeis
- Gynaecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Jacques Donnez
- Société de Recherche pour l'Infertilité, Brussels, Belgium; Professor Em, Université Catholique de Louvain, Brussels, Belgium
| | - Marie-Madeleine Dolmans
- Gynaecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium; Gynaecology Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium.
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Joshi M, Kumar V, Singh D, Onteru SK. Taurine dynamics in serum during the oestrous cycle in buffaloes. Reprod Domest Anim 2024; 59:e14560. [PMID: 38595035 DOI: 10.1111/rda.14560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/01/2024] [Accepted: 03/22/2024] [Indexed: 04/11/2024]
Abstract
Estrus identification is one of the common issues in buffaloes because of their short estrus duration and silent estrus problem. Hence, specific biomarkers facilitating in identifying the estrus stage would be helpful to buffalo farmers and researchers. In our previous studies, taurine, a non-protein amino acid that helps in the secretion of reproductive hormones such as GnRH, was found to be associated with postpartum anestrus in buffaloes. Therefore, the present study was conducted to explore the level of taurine in serum during different stages of the oestrous cycle in healthy cyclic buffaloes. Blood samples were collected from healthy cyclic buffaloes (n = 4), and taurine was estimated at the estrus (0th day), proestrus (-2nd day), metestrus (3rd day) and diestrus (+10th day) stages using TLC method. The days of the oestrous cycle were determined by ultrasonography and observation of behavioural signs by trained professionals. The results revealed that taurine was consistently present in the serum. However, the highest concentration of taurine was observed at the proestrus (0.20 ± 0.03 mg/mL) stage, which was greater (p < .05) than metestrus (0.10 ± 0.05 mg/mL) and diestrus (0.13 ± 0.03 mg/mL) stages, but comparable with the estrus stage. These results were also validated in the simulated population datasets of population size 6 to 10,000. Further, ROC curve analysis for the large simulated population indicated the efficiency of taurine to distinguish proestrus from metestrus and diestrus stages at a lower cutoff value of <0.1643 mg/mL with 60% sensitivity and specificity. Therefore, the present study concludes that serum taurine concentration could help in detecting proestrus stage of buffalo estrous cycle.
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Affiliation(s)
- Mansi Joshi
- Molecular Endocrinology, Functional Genomics & Systems Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Varun Kumar
- Molecular Endocrinology, Functional Genomics & Systems Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Dheer Singh
- Molecular Endocrinology, Functional Genomics & Systems Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Suneel Kumar Onteru
- Molecular Endocrinology, Functional Genomics & Systems Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
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Chesnokov MS, Mamedova AR, Zhivotovsky B, Kopeina GS. A matter of new life and cell death: programmed cell death in the mammalian ovary. J Biomed Sci 2024; 31:31. [PMID: 38509545 PMCID: PMC10956231 DOI: 10.1186/s12929-024-01017-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/27/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND The mammalian ovary is a unique organ that displays a distinctive feature of cyclic changes throughout the entire reproductive period. The estrous/menstrual cycles are associated with drastic functional and morphological rearrangements of ovarian tissue, including follicular development and degeneration, and the formation and subsequent atrophy of the corpus luteum. The flawless execution of these reiterative processes is impossible without the involvement of programmed cell death (PCD). MAIN TEXT PCD is crucial for efficient and careful clearance of excessive, depleted, or obsolete ovarian structures for ovarian cycling. Moreover, PCD facilitates selection of high-quality oocytes and formation of the ovarian reserve during embryonic and juvenile development. Disruption of PCD regulation can heavily impact the ovarian functions and is associated with various pathologies, from a moderate decrease in fertility to severe hormonal disturbance, complete loss of reproductive function, and tumorigenesis. This comprehensive review aims to provide updated information on the role of PCD in various processes occurring in normal and pathologic ovaries. Three major events of PCD in the ovary-progenitor germ cell depletion, follicular atresia, and corpus luteum degradation-are described, alongside the detailed information on molecular regulation of these processes, highlighting the contribution of apoptosis, autophagy, necroptosis, and ferroptosis. Ultimately, the current knowledge of PCD aberrations associated with pathologies, such as polycystic ovarian syndrome, premature ovarian insufficiency, and tumors of ovarian origin, is outlined. CONCLUSION PCD is an essential element in ovarian development, functions and pathologies. A thorough understanding of molecular mechanisms regulating PCD events is required for future advances in the diagnosis and management of various disorders of the ovary and the female reproductive system in general.
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Affiliation(s)
- Mikhail S Chesnokov
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, Russia
- Centro Nacional de Investigaciones Oncológicas, Madrid, Spain
| | - Aygun R Mamedova
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, Russia
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Boris Zhivotovsky
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, Russia.
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden.
| | - Gelina S Kopeina
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, Russia.
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.
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Wang J, Chen H, Zhang Y, Shen H, Zeng X. Long non-coding RNA Loc105611671 promotes the proliferation of ovarian granulosa cells and steroid hormone production upregulation of CDC42. Front Vet Sci 2024; 11:1366759. [PMID: 38500606 PMCID: PMC10944914 DOI: 10.3389/fvets.2024.1366759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 02/19/2024] [Indexed: 03/20/2024] Open
Abstract
Granulosa cells (GCs) are essential for follicular development, and long non-coding RNAs (LncRNAs) are known to support the maintenance of this process and hormone synthesis in mammals. Nevertheless, the regulatory roles of these lncRNAs within sheep follicular GCs remain largely unexplored. This study delved into the influence of a Loc105611671, on the proliferation and steroid hormone synthesis of sheep ovarian GCs and the associated target genes in vitro. Cell Counting Kit-8 (CCK-8) gain-of-function experiments indicated that overexpression of Loc105611671 significantly boosted GCs proliferation, along with estrogen (E2) and progesterone (P4) levels. Further mechanistic scrutiny revealed that Loc105611671 is primarily localized within the cytoplasm of ovarian granulosa cells and engages in molecular interplay with CDC42. This interaction results in the upregulation of CDC42 protein expression. Moreover, it was discerned that increased CDC42 levels contribute to augmented proliferation of follicular granulosa cells and the secretion of E2 and P4. Experiments involving co-transfection elucidated that the concurrent overexpression of CDC42 and Loc105611671 acted synergistically to potentiate these effects. These findings provide insights into the molecular underpinnings of fecundity in ovine species and may inform future strategies for enhancing reproductive outcomes.
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Affiliation(s)
- Jinglei Wang
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Hanying Chen
- School of Pharmacy, Shihezi University, Shihezi, Xinjiang, China
| | - Yongsheng Zhang
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Hong Shen
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Xiancun Zeng
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
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11
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Nascimento BC, Ferreira CS, Oliveira SP, Pereira LAAC, Lopes GA, Nogueira JM, Paula RS, Jorge EC, Campos-Junior PHA. Naproxen administration affects murine late folliculogenesis, reduces granulosa cell proliferation and the number of ovulated oocytes. Reprod Toxicol 2024; 124:108527. [PMID: 38160782 DOI: 10.1016/j.reprotox.2023.108527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 12/14/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
Naproxen reduces the production of prostaglandins via inhibition of the cyclooxygenase. Studies have shown that its administration in women can be related to failed ovulation. Therefore, preclinical investigations must be performed in order to investigate its effects in experimental models. Thus, the aim of this study was to evaluate the effects of naproxen on murine folliculogenesis, ovulation, and female fertility. Female C57BL/6 mice (n = 128 - 6 weeks old) were divided into Control, low (10 mg/kg), and high naproxen (50 mg/kg) groups, who were treated for 8 days and directed to morphofunctional analyses. Follicular quantification showed a reduced percentage of antral follicles in naproxen-treated animals. These treated animals also showed smaller oocytes included in secondary and antral follicles, and the diameter of secondary and antral follicles was also reduced. A reduction in the percentage of Ki67-positive granulosa cells was observed in treated animals that also showed down-regulation of Igf1r compared to control. After an ovarian stimulation protocol, naproxen-treated animals showed a reduction in the percentage of secondary and antral follicles, a reduced number of ovulated oocytes and, corpora lutea, and an increased number of failed ovulations. Finally, naproxen-treated animals also showed a reduction in mating index and pregnancy rate. Our findings suggested that, in mice, naproxen administration (eight days treatment) negatively affects molecular and morphological aspects related to late folliculogenesis, ovulation, and fertility.
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Affiliation(s)
- Bernardo Camara Nascimento
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil
| | - Camila Stefane Ferreira
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil
| | - Stella Pollyanne Oliveira
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil
| | | | - Guilherme Antonio Lopes
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil
| | - Júlia Meireles Nogueira
- Departament of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Rayan Silva Paula
- Departament of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Erika Cristina Jorge
- Departament of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Paulo Henrique Almeida Campos-Junior
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil.
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12
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Szukiewicz D. Current Insights in Prolactin Signaling and Ovulatory Function. Int J Mol Sci 2024; 25:1976. [PMID: 38396659 PMCID: PMC10889014 DOI: 10.3390/ijms25041976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 01/31/2024] [Accepted: 02/03/2024] [Indexed: 02/25/2024] Open
Abstract
Prolactin (PRL) is a pleiotropic hormone released from lactotrophic cells of the anterior pituitary gland that also originates from extrapituitary sources and plays an important role in regulating lactation in mammals, as well as other actions. Acting in an endocrine and paracrine/autocrine manner, PRL regulates the hypothalamic-pituitary-ovarian axis, thus influencing the maturation of ovarian follicles and ovulation. This review provides a detailed discussion of the current knowledge on the role of PRL in the context of ovulation and ovulatory disorders, particularly with regard to hyperprolactinemia, which is one of the most common causes of infertility in women. Much attention has been given to the PRL structure and the PRL receptor (PRLR), as well as the diverse functions of PRLR signaling under normal and pathological conditions. The hormonal regulation of the menstrual cycle in connection with folliculogenesis and ovulation, as well as the current classifications of ovulation disorders, are also described. Finally, the state of knowledge regarding the importance of TIDA (tuberoinfundibular dopamine), KNDγ (kisspeptin/neurokinin B/dynorphin), and GnRH (gonadotropin-releasing hormone) neurons in PRL- and kisspeptin (KP)-dependent regulation of the hypothalamic-pituitary-gonadal (HPG) axis in women is reviewed. Based on this review, a rationale for influencing PRL signaling pathways in therapeutic activities accompanying ovulation disorders is presented.
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Affiliation(s)
- Dariusz Szukiewicz
- Department of Biophysics, Physiology & Pathophysiology, Faculty of Health Sciences, Medical University of Warsaw, 02-004 Warsaw, Poland
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Muccee F, Ashraf NM, Razak S, Afsar T, Hussain N, Husain FM, Shafique H. Exploring the association of ESR1 and ESR2 gene SNPs with polycystic ovary syndrome in human females: a comprehensive association study. J Ovarian Res 2024; 17:27. [PMID: 38281964 PMCID: PMC10823698 DOI: 10.1186/s13048-023-01335-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 12/25/2023] [Indexed: 01/30/2024] Open
Abstract
BACKGROUND Polycystic Ovary Syndrome (PCOS) affects a significant proportion of human females worldwide and is characterized by hormonal, metabolic, and reproductive dysfunctions, including infertility, irregular menstrual cycles, acanthosis nigricans, and hirsutism. Mutations in the estrogen receptor genes ESR1 and ESR2, involved in normal follicular development and ovulation, can contribute to development of the PCOS. The present study focuses on investigating the potential correlation between single nucleotide polymorphisms (SNPs) of ESR1 and ESR2 genes and the incidence of this syndrome. METHODS For this study, SNPs in ESR1 and ESR2 genes were retrieved from the ENSEMBL database and analyzed for their effect on mutated proteins using different bioinformatics tools including SIFT, PolyPhen, CADD, REVEL, MetaLR, I-Mutant, CELLO2GO, ProtParam, SOPMA, SWISS-MODEL and HDDOCK. RESULTS All the SNPs documented in the present study were deleterious. All the SNPs except rs1583384537, rs1450198518, and rs78255744 decreased protein stability. Two variants rs1463893698 and rs766843910 in the ESR2 gene altered the localization of mutated proteins i.e. in addition to the nucleus, proteins were also found in mitochondria and extracellular, respectively. SNPs rs104893956 in ESR1 and rs140630557, rs140630557, rs1596423459, rs766843910, rs1596405923, rs762454979 and rs1384121511 in ESR2 gene significantly changed the secondary structure of proteins (2D). SNPs that markedly changed 3D configuration included rs1554259481, rs188957694 and rs755667747 in ESR1 gene and rs1463893698, rs140630557, rs1596423459, rs766843910, rs1596405923, rs762454979 and rs1384121511 in ESR2 gene. Variants rs1467954450 (ESR1) and rs140630557 (ESR2) were identified to reduce the binding tendency of ESRα and β receptors with estradiol as reflected by the docking scores i.e. -164.97 and -173.23, respectively. CONCLUSION Due to the significant impact on the encoded proteins, these variants might be proposed as biomarkers to predict the likelihood of developing PCOS in the future and for diagnostic purposes.
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Affiliation(s)
- Fatima Muccee
- School of Biochemistry and Biotechnology, University of Punjab, Lahore, 52254, Pakistan.
| | - Naeem Mahmood Ashraf
- School of Biochemistry and Biotechnology, University of Punjab, Lahore, 52254, Pakistan
| | - Suhail Razak
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Tayyaba Afsar
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Nadia Hussain
- Department of Pharmaceutical Sciences, College of Pharmacy, Al Ain University, Al Ain Campus, 64141, Al Ain, United Arab Emirates
- AAU Health and Biomedical Research Center, Al Ain University, Abu Dhabi Campus, P. O. Box 112612, Abu Dhabi, United Arab Emirates
| | - Fohad Mabood Husain
- Department of Food Science and Nutrition, College of Food and Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Huma Shafique
- Institute of Cellular Medicine, Newcastle University Medical School, Newcastle University Newcastle Upon Tyne, Newcastle upon Tyne, UK
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14
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Hayes E, Winston N, Stocco C. Molecular crosstalk between insulin-like growth factors and follicle-stimulating hormone in the regulation of granulosa cell function. Reprod Med Biol 2024; 23:e12575. [PMID: 38571513 PMCID: PMC10988955 DOI: 10.1002/rmb2.12575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/11/2024] [Accepted: 03/20/2024] [Indexed: 04/05/2024] Open
Abstract
Background The last phase of folliculogenesis is driven by follicle-stimulating hormone (FSH) and locally produced insulin-like growth factors (IGFs), both essential for forming preovulatory follicles. Methods This review discusses the molecular crosstalk of the FSH and IGF signaling pathways in regulating follicular granulosa cells (GCs) during the antral-to-preovulatory phase. Main findings IGFs were considered co-gonadotropins since they amplify FSH actions in GCs. However, this view is not compatible with data showing that FSH requires IGFs to stimulate GCs, that FSH renders GCs sensitive to IGFs, and that FSH signaling interacts with factors downstream of AKT to stimulate GCs. New evidence suggests that FSH and IGF signaling pathways intersect at several levels to regulate gene expression and GC function. Conclusion FSH and locally produced IGFs form a positive feedback loop essential for preovulatory follicle formation in all species. Understanding the mechanisms by which FSH and IGFs interact to control GC function will help design new interventions to optimize follicle maturation, perfect treatment of ovulatory defects, improve in vitro fertilization, and develop new contraceptive approaches.
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Affiliation(s)
- Emily Hayes
- Department of Physiology and BiophysicsUniversity of Illinois Chicago College of MedicineChicagoIllinoisUSA
| | - Nicola Winston
- Department of Obstetrics and GynecologyUniversity of Illinois Chicago College of MedicineChicagoIllinoisUSA
| | - Carlos Stocco
- Department of Physiology and BiophysicsUniversity of Illinois Chicago College of MedicineChicagoIllinoisUSA
- Department of Obstetrics and GynecologyUniversity of Illinois Chicago College of MedicineChicagoIllinoisUSA
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15
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Marie C, Pierre A, Mayeur A, Giton F, Corre R, Grynberg M, Cohen-Tannoudji J, Guigon CJ, Chauvin S. Dysfunction of Human Estrogen Signaling as a Novel Molecular Signature of Polycystic Ovary Syndrome. Int J Mol Sci 2023; 24:16689. [PMID: 38069013 PMCID: PMC10706349 DOI: 10.3390/ijms242316689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 12/18/2023] Open
Abstract
Estradiol (E2) is a major hormone-controlling folliculogenesis whose dysfunction may participate in polycystic ovary syndrome (PCOS) infertility. To determine whether both the concentration and action of E2 could be impaired in non-hyperandrogenic overweight PCOS women, we isolated granulosa cells (GCs) and follicular fluid (FF) from follicles of women undergoing ovarian stimulation (27 with PCOS, and 54 without PCOS). An analysis of the transcript abundance of 16 genes in GCs showed that androgen and progesterone receptor expressions were significantly increased in GCs of PCOS (by 2.7-fold and 1.5-fold, respectively), while those of the steroidogenic enzymes CYP11A1 and HSD3B2 were down-regulated (by 56% and 38%, respectively). Remarkably, treatment of GC cultures with E2 revealed its ineffectiveness in regulating the expression of several key endocrine genes (e.g., GREB1 or BCL2) in PCOS. Additionally, a comparison of the steroid concentrations (measured by GC/MS) in GCs with those in FF of matched follicles demonstrated that the significant decline in the E2 concentration (by 23%) in PCOS FF was not the result of the E2 biosynthesis reduction. Overall, our study provides novel hallmarks of PCOS by highlighting the ineffective E2 signaling in GCs as well as the dysregulation in the expression of genes involved in follicular growth, which may contribute to aberrant folliculogenesis in non-hyperandrogenic women with PCOS.
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Affiliation(s)
- Clémentine Marie
- Université Paris Cité, CNRS, Inserm, Unité de Biologie Fonctionnelle et Adaptative, 75013 Paris, France; (C.M.); (A.P.); (R.C.); (M.G.); (J.C.-T.); (C.J.G.)
| | - Alice Pierre
- Université Paris Cité, CNRS, Inserm, Unité de Biologie Fonctionnelle et Adaptative, 75013 Paris, France; (C.M.); (A.P.); (R.C.); (M.G.); (J.C.-T.); (C.J.G.)
| | - Anne Mayeur
- Service de Médecine de la Reproduction et Préservation de la Fertilité, Hôpital Antoine Béclère, 92140 Clamart, France;
| | - Frank Giton
- AP-HP, Pôle Biologie-Pathologie Henri Mondor, Inserm IMRB U955, 94010 Créteil, France;
| | - Raphael Corre
- Université Paris Cité, CNRS, Inserm, Unité de Biologie Fonctionnelle et Adaptative, 75013 Paris, France; (C.M.); (A.P.); (R.C.); (M.G.); (J.C.-T.); (C.J.G.)
| | - Michaël Grynberg
- Université Paris Cité, CNRS, Inserm, Unité de Biologie Fonctionnelle et Adaptative, 75013 Paris, France; (C.M.); (A.P.); (R.C.); (M.G.); (J.C.-T.); (C.J.G.)
- Service de Médecine de la Reproduction et Préservation de la Fertilité, Hôpital Antoine Béclère, 92140 Clamart, France;
| | - Joëlle Cohen-Tannoudji
- Université Paris Cité, CNRS, Inserm, Unité de Biologie Fonctionnelle et Adaptative, 75013 Paris, France; (C.M.); (A.P.); (R.C.); (M.G.); (J.C.-T.); (C.J.G.)
| | - Céline J. Guigon
- Université Paris Cité, CNRS, Inserm, Unité de Biologie Fonctionnelle et Adaptative, 75013 Paris, France; (C.M.); (A.P.); (R.C.); (M.G.); (J.C.-T.); (C.J.G.)
| | - Stéphanie Chauvin
- Université Paris Cité, CNRS, Inserm, Unité de Biologie Fonctionnelle et Adaptative, 75013 Paris, France; (C.M.); (A.P.); (R.C.); (M.G.); (J.C.-T.); (C.J.G.)
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16
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Tan Z, Gong X, Wang CC, Zhang T, Huang J. Diminished Ovarian Reserve in Endometriosis: Insights from In Vitro, In Vivo, and Human Studies-A Systematic Review. Int J Mol Sci 2023; 24:15967. [PMID: 37958954 PMCID: PMC10647261 DOI: 10.3390/ijms242115967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/18/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
Endometriosis, a prevalent disorder in women of reproductive age, is often associated with undesired infertility. Ovarian reserve, an essential measure of ovarian function that is crucial for maintaining fecundity, is frequently diminished in women with endometriosis. Though the causative relationship between endometriosis and reduced ovarian reserve is not fully understood due to the lack of standardized and precise measurements of ovarian reserve, there is ongoing discussion regarding the impact of interventions for endometriosis on ovarian reserve. Therefore, in this review, we investigate articles that have related keywords and which were also published in recent years. Thereafter, we provide a comprehensive summary of evidence from in vitro, in vivo, and human studies, thereby shedding light on the decreased ovarian reserve in endometriosis. This research consolidates evidence from in vitro, in vivo, and human studies on the diminished ovarian reserve associated with endometriosis, as well as enhances our understanding of whether and how endometriosis, as well as its interventions, contribute to reductions in ovarian reserve. Furthermore, we explore potential strategies to modify existing therapy options that could help prevent diminished ovarian reserve in patients with endometriosis.
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Affiliation(s)
- Zhouyurong Tan
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; (Z.T.); (X.G.); (C.C.W.)
| | - Xue Gong
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; (Z.T.); (X.G.); (C.C.W.)
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Chi Chiu Wang
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; (Z.T.); (X.G.); (C.C.W.)
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Chinese University of Hong Kong-Sichuan University Joint Laboratory in Reproductive Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Reproduction and Development, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Tao Zhang
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; (Z.T.); (X.G.); (C.C.W.)
| | - Jin Huang
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; (Z.T.); (X.G.); (C.C.W.)
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital, The Chinese University of Hong Kong, Shenzhen 518172, China
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Shi S, Chu G, Zhang L, Yuan H, Madaniyati M, Zhou X, Wang L, Cai C, Pang W, Gao L, Yang G. Deubiquitinase UCHL1 regulates estradiol synthesis by stabilizing voltage-dependent anion channel 2. J Biol Chem 2023; 299:105316. [PMID: 37797697 PMCID: PMC10656229 DOI: 10.1016/j.jbc.2023.105316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/31/2023] [Accepted: 09/19/2023] [Indexed: 10/07/2023] Open
Abstract
Lack of estradiol production by granulosa cells blocks follicle development, causes failure of estrous initiation, and results in an inability to ovulate. The ubiquitin-proteasome system plays a critical role in maintaining protein homeostasis and stability of the estrous cycle, but knowledge of deubiquitination enzyme function in estradiol synthesis is limited. Here, we observe that the deubiquitinase ubiquitin C-terminal hydrolase 1 (UCHL1) is more significant in estrous sows and high litter-size sows than in nonestrous sows and low-yielding sows. Overexpression of UCHL1 promotes estradiol synthesis in granulosa cells, and interference with UCHL1 has the opposite effect. UCHL1 binds, deubiquitinates, and stabilizes voltage-dependent anion channel 2 (VDAC2), promoting the synthesis of the estradiol precursor pregnenolone. Cysteine 90 (C90) of UCHL1 is necessary for its deubiquitination activity, and Lys45 and Lys64 in VDAC2 are essential for its ubiquitination and degradation. In vivo, compared with WT and sh-NC-AAV groups, the estrus cycle of female mice is disturbed, estradiol level is decreased, and the number of antral follicles is decreased after the injection of sh-UCHL1-AAV into ovarian tissue. These findings suggest that UCHL1 promotes estradiol synthesis by stabilizing VDAC2 and identify UCHL1 as a candidate gene affecting reproductive performance.
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Affiliation(s)
- Shengjie Shi
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Guiyan Chu
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Lutong Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Huan Yuan
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Mielie Madaniyati
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Xiaoge Zhou
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Liguang Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Chuanjiang Cai
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Weijun Pang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Lei Gao
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Gongshe Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China.
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18
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Maurya S, Tripathi S, Singh A. Ontogeny of adropin and its receptor expression during postnatal development and its pro-gonadal role in the ovary of pre-pubertal mouse. J Steroid Biochem Mol Biol 2023; 234:106404. [PMID: 37743028 DOI: 10.1016/j.jsbmb.2023.106404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/21/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
Adropin, a highly conserved multifunctional peptide hormone, has a beneficial effect on the maintenance of gluco-lipid homeostasis, endothelial and cardiovascular functions. However, the expression and potential role of adropin in ovarian function are not fully elucidated. The present study aimed to investigate the expression of adropin and GPR19 in the mice ovary during various stages of postnatal development. This study also explored whether the treatment of adropin can modulate the timing of puberty, for which pre-pubertal mice were treated with adropin. The result showed the intense immunoreactivity of adropin in TICs, while GPR19 immunoreactivity was noted in GCs in infantile, pre-pubertal, and pubertal mice ovary. Also, adropin and GPR19 are highly expressed in the CL of the ovary of reproductively active mice. The fact that adropin expression in the ovary at different stages of postnatal development positively correlated with circulating progesterone and estradiol indicated that it has a role in the production of steroid hormones. Furthermore, the results of in vivo studies in pre-pubertal mice showed that adropin promotes early folliculogenesis by enhancing the proliferation (PCNA) of GCs of cortical ovarian follicles and promotes estradiol production by enhancing the expression of GPR19, StAR, CYP11A1 and aromatase proteins. Also, adropin treatment increases the Bax/Bcl2 ratio and expression of cleaved caspase-3 and ERα proteins, which may result in increased apoptosis of medullary follicles leading to the formation of a well-developed interstitium with interstitial glandular cells. Collectively, these findings indicate that adropin may be a factor that accelerates pubertal development in the ovary and could be utilized as a therapeutic approach for treating pubertal delay.
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Affiliation(s)
- Shweta Maurya
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Shashank Tripathi
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Ajit Singh
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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Chakraborty S, Anand S, Coe S, Reh B, Bhandari RK. The PCOS-NAFLD Multidisease Phenotype Occurred in Medaka Fish Four Generations after the Removal of Bisphenol A Exposure. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:12602-12619. [PMID: 37581432 PMCID: PMC10469501 DOI: 10.1021/acs.est.3c01922] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 08/16/2023]
Abstract
As a heterogeneous reproductive disorder, polycystic ovary syndrome (PCOS) can be caused by genetic, diet, and environmental factors. Bisphenol A (BPA) can induce PCOS and nonalcoholic fatty liver disease (NAFLD) due to direct exposure; however, whether these phenotypes persist in future unexposed generations is not currently understood. In a previous study, we observed that transgenerational NAFLD persisted in female medaka for five generations (F4) after exposure to an environmentally relevant concentration (10 μg/L) of BPA. Here, we demonstrate PCOS in the same F4 generation female medaka that developed NAFLD. The ovaries contained immature follicles, restricted follicular progression, and degenerated follicles, which are characteristics of PCOS. Untargeted metabolomic analysis revealed 17 biomarkers in the ovary of BPA lineage fish, whereas transcriptomic analysis revealed 292 genes abnormally expressed, which were similar to human patients with PCOS. Metabolomic-transcriptomic joint pathway analysis revealed activation of the cancerous pathway, arginine-proline metabolism, insulin signaling, AMPK, and HOTAIR regulatory pathways, as well as upstream regulators esr1 and tgf signaling in the ovary. The present results suggest that ancestral BPA exposure can lead to PCOS phenotypes in the subsequent unexposed generations and warrant further investigations into potential health risks in future generations caused by initial exposure to EDCs.
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Affiliation(s)
- Sourav Chakraborty
- Department of Biology, University of North Carolina at Greensboro, Greensboro 27412 North Carolina, United
States
| | - Santosh Anand
- Department of Biology, University of North Carolina at Greensboro, Greensboro 27412 North Carolina, United
States
| | - Seraiah Coe
- Department of Biology, University of North Carolina at Greensboro, Greensboro 27412 North Carolina, United
States
| | - Beh Reh
- Department of Biology, University of North Carolina at Greensboro, Greensboro 27412 North Carolina, United
States
| | - Ramji Kumar Bhandari
- Department of Biology, University of North Carolina at Greensboro, Greensboro 27412 North Carolina, United
States
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Shah MZUH, Shrivastva VK, Mir MA, Sheikh WM, Ganie MA, Rather GA, Shafi M, Bashir SM, Ansari MA, Al-Jafary MA, Al-Qhtani MH, Homeida AM, Al-Suhaimi EA. Effect of quercetin on steroidogenesis and folliculogenesis in ovary of mice with experimentally-induced polycystic ovarian syndrome. Front Endocrinol (Lausanne) 2023; 14:1153289. [PMID: 37670876 PMCID: PMC10476101 DOI: 10.3389/fendo.2023.1153289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 04/07/2023] [Indexed: 09/07/2023] Open
Abstract
Introduction Polycystic Ovary syndrome (PCOS) affects the health of many women around theworld. Apart from fundamental metabolic problems connected to PCOS, focus of our study is on the role of quercetin on genes relevant to steroidogenesis and folliculogenesis. Methods Eighteen mature parkes strain mice (4-5 weeks old) weighing18-21 g were randomly divided into three groups of six each as follows: Group I serves as the control and was given water and a regular chow diet ad lib for 66 days; group II was given oral gavage administration of letrozole (LETZ) (6 mg/kgbw) for 21 days to induce PCOS and was left untreated for 45 days; For three weeks, Group III received oral gavage dose of LETZ (6 mg/kg), after which it received Quercetin (QUER) (125 mg/kg bw orally daily) for 45 days. Results In our study we observed that mice with PCOS had irregular estrous cycle with increased LH/FSH ratio, decreased estrogen level and decline in expression of Kitl, Bmp1, Cyp11a1, Cyp19a1, Ar, lhr, Fshr and Esr1 in ovary. Moreover, we observed increase in the expression of CYP17a1, as well as increase in cholesterol, triglycerides, testosterone, vascular endothelial growth factor VEGF and insulin levels. All these changes were reversed after the administration of quercetin in PCOS mice. Discussion Quercetin treatment reversed the molecular, functional and morphological abnormalities brought on due to letrozole in pathological and physiological setting, particularly the issues of reproduction connected to PCOS. Quercetin doesn't act locally only but it acts systematically as it works on Pituitary (LH/FSH)- Ovary (gonad hormones) axis. the Side effects of Quercetin have to be targeted in future researches. Quercetin may act as a promising candidate for medical management of human PCOS.
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Affiliation(s)
- Mohd Zahoor Ul Haq Shah
- Laboratory of Endocrinology, Department of Bioscience Barkatullah University Bhopal, Madhya Pradesh, India
| | - Vinoy Kumar Shrivastva
- Laboratory of Endocrinology, Department of Bioscience Barkatullah University Bhopal, Madhya Pradesh, India
| | - Manzoor Ahmad Mir
- Department of Bioresources, University of Kashmir, Srinagar, Jammu and Kashmir, India
| | - Wajid Mohammad Sheikh
- Biochemistry & Molecular Biology Lab, Division of Veterinary Biochemistry, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, Srinagar, Jammu and Kashmir, India
| | - Mohd Ashraf Ganie
- Department of Endocrinology and Metabolism, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
| | - Gulzar Ahmed Rather
- Department of Biomedical Engineering Sathyabama Institute of Science & Technology, Chennai, Tamil Nadu, India
| | - Majid Shafi
- Division of Veterinary Pathology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, Srinagar, Jammu and Kashmir, India
| | - Showkeen Muzamil Bashir
- Biochemistry & Molecular Biology Lab, Division of Veterinary Biochemistry, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, Srinagar, Jammu and Kashmir, India
| | - Mohammad Azam Ansari
- Department of Epidemic Disease Research, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Meneerah A. Al-Jafary
- Biology Department, College of Science and Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mohammad H. Al-Qhtani
- Department of Paediatrics, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Abdalelgadir Musa Homeida
- Department of Environmental Health Research, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Ebtesam A. Al-Suhaimi
- Biology Department, College of Science and Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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Naik AQ, Zafar T, Shrivastava VK. The impact of non-caloric artificial sweetener aspartame on female reproductive system in mice model. Reprod Biol Endocrinol 2023; 21:73. [PMID: 37580716 PMCID: PMC10424399 DOI: 10.1186/s12958-023-01115-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 07/05/2023] [Indexed: 08/16/2023] Open
Abstract
BACKGROUND Artificial sweeteners, used as sugar substitutes have found their ways into almost all the food items due to the notion that they are non-caloric. Aspartame is used in numerous food products throughout the world. The primary users of aspartame include diabetics and calorie conscious people who intend to limit their calorie intake. METHODS Female Swiss albino mice were divided into three groups (12 mice each) for the duration of 30 and 60 days consecutively. The treatment groups received 40 mg/kg b. w. aspartame orally. Hormone assays using ELISA and tissue histopathology have been performed along with the fertility assay to access the treatment outcomeon the fertility of treated mice in comparison to controls. RESULTS Present study reports that female mice treated with aspartame for 30 and 60 days showed significant reduction in body weight, relative organ weight of (liver and kidney) and gonadosomatic index. These changes were more significantly recorded in 60 days treatment group. Aspartame treated animals for 30 and 60 days showed duration-dependent decrease gonandotropins (follicle stimulating hormone and luteinizing hormone), and steroids (estradiol and progesterone). Moreover, severe histopathological changes, reduction in number of growing follicles, degenerative changes in follicular structure, corona radiata and zonagranulosa were also observed. Besides, histomorphological changes were also observed in the uterine structure including atrophic uterine endometrial glands, contracted endometrial lining, disruption of the endometrial structure and the shapes of blood vessels were also altered. CONCLUSION Non-nutritive artificial sweeteners including aspartame negatively impact the function of ovaries and feedback mechanism of reproductive hormones by affecting the hypothalamic-pituitary-gonadal axis. In light of present findings the aspartame negatively impacted the reproductive system of female mice. More studies are required to identify the molecular mechanism and the pathways involved.
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Affiliation(s)
- Ab Qayoom Naik
- Department of Zoology, Govt. Degree College, Paloura Mishriwala, Jammu, J & K, 180018, India.
- Laboratory of Endocrinology, Department of Biosciences, Barkatullah University, Bhopal, M. P, 462026, India.
| | - Tabassum Zafar
- Laboratory of Endocrinology, Department of Biosciences, Barkatullah University, Bhopal, M. P, 462026, India.
| | - Vinoy K Shrivastava
- Laboratory of Endocrinology, Department of Biosciences, Barkatullah University, Bhopal, M. P, 462026, India
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Pakdel F. The Role of Estrogen Receptors in Health and Disease. Int J Mol Sci 2023; 24:11354. [PMID: 37511113 PMCID: PMC10378944 DOI: 10.3390/ijms241411354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Many biological and physiological events, including growth, development, and metabolism of reproductive and non-reproductive tissues in men and women, are regulated by estrogens and estrogen receptors (ERs) [...].
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Affiliation(s)
- Farzad Pakdel
- Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, EHESP, Inserm, Université de Rennes, F-35000 Rennes, France
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Zhu M, Xu M, Zhang J, Zheng C. The role of Hippo pathway in ovarian development. Front Physiol 2023; 14:1198873. [PMID: 37334049 PMCID: PMC10275494 DOI: 10.3389/fphys.2023.1198873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 05/22/2023] [Indexed: 06/20/2023] Open
Abstract
The follicle is the functional unit of the ovary, whereby ovarian development is largely dependent on the development of the follicles themselves. The activation, growth, and progression of follicles are modulated by a diverse range of factors, including reproductive endocrine system and multiple signaling pathways. The Hippo pathway exhibits a high degree of evolutionary conservation between both Drosophila and mammalian systems, and is recognized for its pivotal role in regulating cellular proliferation, control of organ size, and embryonic development. During the process of follicle development, the components of the Hippo pathway show temporal and spatial variations. Recent clinical studies have shown that ovarian fragmentation can activate follicles. The mechanism is that the mechanical signal of cutting triggers actin polymerization. This process leads to the disruption of the Hippo pathway and subsequently induces the upregulation of downstream CCN and apoptosis inhibitors, thereby promoting follicle development. Thus, the Hippo pathway plays a crucial role in both the activation and development of follicles. In this article, we focused on the development and atresia of follicles and the function of Hippo pathway in these processes. Additionally, the physiological effects of Hippo pathway in follicle activation are also explored.
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Mourikes VE, Santacruz Márquez R, Deviney A, Neff AM, Laws MJ, Flaws JA. Imidacloprid and Its Bioactive Metabolite, Desnitro-Imidacloprid, Differentially Affect Ovarian Antral Follicle Growth, Morphology, and Hormone Synthesis In Vitro. TOXICS 2023; 11:349. [PMID: 37112576 PMCID: PMC10141062 DOI: 10.3390/toxics11040349] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/03/2023] [Accepted: 04/05/2023] [Indexed: 06/19/2023]
Abstract
Imidacloprid is a neonicotinoid pesticide used in large-scale agricultural systems, home gardens, and veterinary pharmaceuticals. Imidacloprid is a small molecule that is more water-soluble than other insecticides, increasing the likelihood of large-scale environmental accumulation and chronic exposure of non-targeted species. Imidacloprid can be converted to the bioactive metabolite desnitro-imidacloprid in the environment and body. Little is known about the mechanisms by which imidacloprid and desnitro-imidacloprid induce ovarian toxicity. Thus, we tested the hypothesis that imidacloprid and desnitro-imidacloprid differentially affect antral follicle growth and steroidogenesis in vitro. Antral follicles were dissected from the ovaries of CD-1 mice and cultured in media containing vehicle control or 0.2 µg/mL-200 µg/mL of imidacloprid or desnitro-imidacloprid for 96 h. Follicle morphology was monitored, and follicle size was measured every 24 h. At the end of the culture periods, media were used to quantify follicular hormone levels, and follicles were used for gene expression analysis of steroidogenic regulators, hormone receptors, and apoptotic factors. Imidacloprid did not affect follicle growth or morphology compared to the control. Desnitro-imidacloprid inhibited follicle growth and caused follicles to rupture in culture compared to the control. Imidacloprid increased progesterone, whereas desnitro-imidacloprid decreased testosterone and progesterone compared to the control. Desnitro-imidacloprid also changed estradiol compared to the control. At 48 h, IMI decreased the expression of Star, Cyp17a1, Hsd17b1, Cyp19a1, and Esr2 and increased the expression of Cyp11a1, Cyp19a1, Bax, and Bcl2 compared to the control. IMI also changed the expression of Esr1 compared to the control. At 48 h, DNI decreased the expression of Cyp11a1, Cyp17a1, Hsd3b1, Cyp19a1, and Esr1 and increased the expression of Cyp11a1, Hsd3b1, and Bax compared to the control. At 72 h of culture, IMI significantly decreased the expression of Cyp19a1 and increased the expression of Star and Hsd17b1 compared to the control. At 72 h, DNI significantly decreased the expression of Cyp11a1, Cyp17a1, Hsd3b1, and Bax and increased the expression of Esr1 and Esr2. At 96 h, IMI decreased the expression of Hsd3b1, Cyp19a1, Esr1, Bax, and Bcl2 compared to the control. At 96 h, DNI decreased the expression of Cyp17a1, Bax, and Bcl2 and increased the expression of Cyp11a1, Hsd3b1, and Bax compared to the control. Together, these data suggest mouse antral follicles are targets of neonicotinoid toxicity, and the mechanisms of toxicity differ between parent compounds and metabolites.
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25
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Ul Haq Shah MZ, Shrivastava VK, Olaniyi KS. Role of diacerein on steroidogenesis and folliculogenesis related genes in ovary of letrozole-induced PCOS mice. Chem Biol Interact 2023; 377:110468. [PMID: 37030623 DOI: 10.1016/j.cbi.2023.110468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/12/2023] [Accepted: 03/28/2023] [Indexed: 04/10/2023]
Abstract
Polycystic ovary syndrome (PCOS), an intricate and multifaceted metabolic-endocrine disorder that typically affects 6-20% of women of reproductive age and accounts for 70-80% of all occurrences of infertility globally. In this study we focussed on the effect of diacerein (DIC) on steroidogenesis and follicle development in addition to the basic metabolic and endocrine problems which are associated with PCOS. Eighteen mature female parkes strain mice were separated into three groups at random with 6 animals in a group as follows: Group I, received water and normal diet for 66 days; group II received letrozole (LETZ) (6 mg/kg bw) for the induction of PCOS; Group III received LETZ (6 mg/kg) for 3 weeks followed by the administration of DIC (35mg/kg) for 45 days. In our study we observed that mice with PCOS had irregular estrous cycle with increased LH/FSH, estrogen level and decline in expression of Kitl, Bmp, Cyp11a1, CYP19a1, Ar, lhr, Fshr and Esr1 as well as decreased SOD and CAT activity in ovary. Moreover, we observed increase in the expression of CYP17a1, as well as increase in serum cholesterol, triglycerides, testosterone, LH, VEGF and insulin levels. All these changes were reversed after the administration of DIC in PCOS mice. Diacerin administration reversed abnormalities in mice with PCOS by modulating the regulation of genes which are related to steroidogenesis and folliculogenesis.
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Affiliation(s)
- Mohd Zahoor Ul Haq Shah
- Laboratory of Endocrinology, Department of Bioscience, Barkatullah University Bhopal, Madhya predesh, 462026, India
| | - Vinoy Kumar Shrivastava
- Laboratory of Endocrinology, Department of Bioscience, Barkatullah University Bhopal, Madhya predesh, 462026, India
| | - Kehinde S Olaniyi
- Laboratory of Endocrinology, Department of Bioscience, Barkatullah University Bhopal, Madhya predesh, 462026, India; Cardio/Repro-metabolic and Microbiome Research Unit, Department of Physiology, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, 360101, Nigeria.
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Chlorogenic Acid Restores Ovarian Functions in Mice with Letrozole-Induced Polycystic Ovarian Syndrome Via Modulation of Adiponectin Receptor. Biomedicines 2023; 11:biomedicines11030900. [PMID: 36979879 PMCID: PMC10045653 DOI: 10.3390/biomedicines11030900] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/25/2023] [Accepted: 03/03/2023] [Indexed: 03/17/2023] Open
Abstract
Around the world, polycystic ovary syndrome (PCOS) is a complex endocrine-metabolic condition that typically affects 6–20% of females. Our study’s major goal was to examine how chlorogenic acid (CGA) affected mice with endocrine and metabolic problems brought on by letrozole-induced PCOS. Group I served as the control for 81 days; Group II was given Letrozole (LETZ) orally at a dose of 6 mg/kg bw for 21 days to induce PCOS; Group III was given LETZ (6 mg/kg) for 21 days, followed by treatment with CGA (50 mg/kg bw daily) for 60 days. The study indicated that LETZ-treated mice displayed symptoms of PCOS, such as dyslipidemia, hyperinsulinemia, elevated testosterone, increases in inflammatory markers and malonaldehyde, and a decline in antioxidants (Ar, lhr, fshr, and esr2) in the ovaries. These alterations were affected when the mice were given CGA and were associated with reduced levels of adiponectin. Adiponectin showed interactions with hub genes, namely MLX interacting protein like (MLXIPL), peroxisome proliferator-activated receptor gamma Coactivator 1- alpha (PPARGC1), peroxisome proliferator-activated receptor gamma (Pparg), and adiponectin receptor 1 (Adipor1). Lastly, the gene ontology of adiponectin revealed that adiponectin was highly involved in biological processes. The findings from our research suggest that adiponectin has direct impacts on metabolic and endocrine facets of PCOS.
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Huang L, Zhang L, Shi S, Zhou X, Yuan H, Song X, Hu Y, Pang W, Yang G, Gao L, Chu G. Mitochondrial function and E 2 synthesis are impaired following alteration of CLOCK gene expression in porcine ovarian granulosa cells. Theriogenology 2023; 202:51-60. [PMID: 36921565 DOI: 10.1016/j.theriogenology.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 03/02/2023] [Accepted: 03/05/2023] [Indexed: 03/08/2023]
Abstract
Circadian locomotor output cycles kaput (CLOCK) is a critical component of the mammalian circadian clock system and regulates ovarian physiology. However, the functions and mechanisms of CLOCK in porcine granulosa cells (GCs) are poorly understood. The present study focused on CLOCK's effects on estradiol synthesis. Similarity analysis showed that CLOCK is highly conserved between pigs and other species. The phylogenetic tree analysis indicated that porcine CLOCK was most closely related to that in Arabian camels. CLOCK significantly reduced E2 synthesis in GCs. CLOCK reduced the expression of steroidogenesis-related genes at the mRNA and protein levels, including CYP19A1, CYP11A1, and StAR. CYP17A1 levels were significantly downregulated. We demonstrated that CLOCK dramatically decreased ATP content, mitochondrial copy number, and mitochondrial membrane potential (MMP) and increased reactive oxygen species levels in GCs. We observed that mitochondria were severely damaged with fuzzy and fractured cristae and swollen matrix. These findings suggest that mitochondrial function and E2 synthesis are impaired following the alteration of CLOCK gene expression in porcine ovarian GCs.
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Affiliation(s)
- Liang Huang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Lutong Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Shengjie Shi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Xiaoge Zhou
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Huan Yuan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Xiangrong Song
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Yamei Hu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Weijun Pang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Gongshe Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Lei Gao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Guiyan Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
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Wei CX, Zhang L, Pang CH, Qi YH, Zhang JW. Effect of the ratios of estradiol increase on the outcome of in vitro fertilization-embryo transfer with antagonist regimens: a single center retrospective cohort study. BMC Pregnancy Childbirth 2023; 23:134. [PMID: 36864417 PMCID: PMC9979484 DOI: 10.1186/s12884-023-05438-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 02/09/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND The outcome of in vitro fertilization-embryo transfer (IVF) is often determined according to follicle and estradiol levels following gonadotropin stimulation. In previous studies, although most of them analyzed the estrogen level from ovaries or the average estrogen level of a single follicle, there was no study on the ratio of estrogen increase, which was also correlated with pregnancy outcomes in the clinic. This study aimed to make timely adjustments to follow-up medication to improve clinical outcomes based on the potential value of estradiol growth rate. METHODS We comprehensively analyzed estrogen growth during the entire ovarian stimulation period. Serum estradiol levels were measured on the day of gonadotropin treatment (Gn1), five days later (Gn5), eight days later (Gn8), and on the trigger day (HCG). This ratio was used to determine the increase in estradiol levels. According to the ratio of estradiol increase, the patients were divided into four groups: A1 (Gn5/Gn1 ≤ 6.44), A2 (6.44 < Gn5/Gn1 ≤ 10.62), A3 (10.62 < Gn5/Gn1 ≤ 21.33), and A4 (Gn5/Gn1 > 21.33); B1 (Gn8/Gn5 ≤ 2.39), B2 (2.39 < Gn8/Gn5 ≤ 3.03), B3 (3.03 < Gn8/Gn5 ≤ 3.84), and B4 (Gn8/Gn5 > 3.84). We analyzed and compared the relationship between data in each group and pregnancy outcomes. RESULTS In the statistical analysis, the estradiol levels of Gn5 (P = 0.029, P = 0.042), Gn8 (P < 0.001, P = 0.001), and HCG (P < 0.001, P = 0.002), as well as Gn5/Gn1 (P = 0.004, P = 0.006), Gn8/Gn5 (P = 0.001, P = 0.002), and HCG/Gn1 (P < 0.001, P < 0.001) both had clinical guiding significance, and lower one significantly reduced the pregnancy rate. The outcomes were positively linked to groups A (P = 0.036, P = 0.043) and B (P = 0.014, P = 0.013), respectively. The logistical regression analysis revealed that group A1 (OR = 0.376 [0.182-0.779]; P = 0.008*, OR = 0.401 [0.188-0.857]; P = 0.018*) and B1 (OR = 0.363 [0.179-0.735]; P = 0.005*, OR = 0.389 [0.187-0.808]; P = 0.011*) had opposite influence on outcomes. CONCLUSION Maintaining a serum estradiol increase ratio of at least 6.44 on Gn5/Gn1 and 2.39 on Gn8/Gn5 may result in a higher pregnancy rate, especially in young people.
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Affiliation(s)
- Chun-Xiao Wei
- grid.464402.00000 0000 9459 9325Shandong University of Traditional Chinese Medicine Affiliated Hospital. Jinan, Shandong, China
| | - Liang Zhang
- grid.464402.00000 0000 9459 9325Shandong University of Traditional Chinese Medicine Affiliated Hospital. Jinan, Shandong, China
| | - Cong-Hui Pang
- grid.464402.00000 0000 9459 9325Shandong University of Traditional Chinese Medicine Affiliated Hospital. Jinan, Shandong, China
| | - Ying-Hua Qi
- grid.464402.00000 0000 9459 9325Shandong University of Traditional Chinese Medicine Affiliated Hospital. Jinan, Shandong, China
| | - Jian-Wei Zhang
- Shandong University of Traditional Chinese Medicine. Jinan, Shandong, China.
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Kilanowska A, Ziółkowska A, Stasiak P, Gibas-Dorna M. cAMP-Dependent Signaling and Ovarian Cancer. Cells 2022; 11:cells11233835. [PMID: 36497095 PMCID: PMC9738761 DOI: 10.3390/cells11233835] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 12/02/2022] Open
Abstract
cAMP-dependent pathway is one of the most significant signaling cascades in healthy and neoplastic ovarian cells. Working through its major effector proteins-PKA and EPAC-it regulates gene expression and many cellular functions. PKA promotes the phosphorylation of cAMP response element-binding protein (CREB) which mediates gene transcription, cell migration, mitochondrial homeostasis, cell proliferation, and death. EPAC, on the other hand, is involved in cell adhesion, binding, differentiation, and interaction between cell junctions. Ovarian cancer growth and metabolism largely depend on changes in the signal processing of the cAMP-PKA-CREB axis, often associated with neoplastic transformation, metastasis, proliferation, and inhibition of apoptosis. In addition, the intracellular level of cAMP also determines the course of other pathways including AKT, ERK, MAPK, and mTOR, that are hypo- or hyperactivated among patients with ovarian neoplasm. With this review, we summarize the current findings on cAMP signaling in the ovary and its association with carcinogenesis, multiplication, metastasis, and survival of cancer cells. Additionally, we indicate that targeting particular stages of cAMP-dependent processes might provide promising therapeutic opportunities for the effective management of patients with ovarian cancer.
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Affiliation(s)
- Agnieszka Kilanowska
- Department of Anatomy and Histology, Collegium Medicum, University of Zielona Gora, 65-046 Zielona Gora, Poland
- Correspondence: ; Tel.: +48-683-283-148
| | - Agnieszka Ziółkowska
- Department of Anatomy and Histology, Collegium Medicum, University of Zielona Gora, 65-046 Zielona Gora, Poland
| | - Piotr Stasiak
- Department of Anatomy and Histology, Collegium Medicum, University of Zielona Gora, 65-046 Zielona Gora, Poland
| | - Magdalena Gibas-Dorna
- Department of Anatomy and Histology, Collegium Medicum, University of Zielona Gora, 65-046 Zielona Gora, Poland
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Association between Serum Copper, Selenium, Zinc, and Serum Estradiol in Women. Int J Endocrinol 2022; 2022:8747693. [PMID: 37181198 PMCID: PMC10171975 DOI: 10.1155/2022/8747693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/19/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022] Open
Abstract
Objectives. The objective is to examine the associations between serum copper, selenium, zinc, and serum estradiol (E2) among 2388 female participants from the National Health and Nutrition Examination Survey (NHANES). Methods. To estimate the association between serum copper, selenium, zinc, and serum E2, multivariate logistic regression analyses were conducted. Fitted smoothing curves and generalized additive models were also performed. Results. After adjusting for confounding factors, it was found that female serum copper was positively correlated with serum E2. The relationship between serum copper and E2 showed an inverted U-shaped curve (inflection point: 28.57 μmol/L). Serum selenium in women was negatively correlated with serum E2, and in the subgroup of women aged 25-55, the relationship between serum selenium and E2 showed an inverted U-shaped curve (inflection point: 1.39 μmol/L). There was no correlation between serum zinc and serum E2 in women. Conclusions. Our study revealed a correlation between serum copper and selenium and serum E2 in women and identified an inflection point for each.
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Vignault C, Cadoret V, Jarrier-Gaillard P, Papillier P, Téteau O, Desmarchais A, Uzbekova S, Binet A, Guérif F, Elis S, Maillard V. Bisphenol S Impairs Oestradiol Secretion during In Vitro Basal Folliculogenesis in a Mono-Ovulatory Species Model. TOXICS 2022; 10:toxics10080437. [PMID: 36006116 PMCID: PMC9412475 DOI: 10.3390/toxics10080437] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 05/28/2023]
Abstract
Bisphenol S (BPS) affects terminal folliculogenesis by impairing steroidogenesis in granulosa cells from different species. Nevertheless, limited data are available on its effects during basal folliculogenesis. In this study, we evaluate in vitro the effects of a long-term BPS exposure on a model of basal follicular development in a mono-ovulatory species. We cultured ovine preantral follicles (180−240 μm, n = 168) with BPS (0.1 μM (possible human exposure dose) or 10 μM (high dose)) and monitored antrum appearance and follicular survival and growth for 15 days. We measured hormonal secretions (oestradiol (at day 13 [D13]), progesterone and anti-Müllerian hormone [D15]) and expression of key follicular development and redox status genes (D15) in medium and whole follicles, respectively. BPS (0.1 µM) decreased oestradiol secretion compared with the control (−48.8%, p < 0.001), without significantly impairing antrum appearance, follicular survival and growth, anti-Müllerian hormone and progesterone secretion and target gene expression. Thus, BPS could also impair oestradiol secretion during basal folliculogenesis as it is the case during terminal folliculogenesis. It questions the use of BPS as a safe BPA substitute in the human environment. More studies are required to elucidate mechanisms of action of BPS and its effects throughout basal follicular development.
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Affiliation(s)
- Claire Vignault
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (C.V.); (V.C.); (P.J.-G.); (P.P.); (O.T.); (A.D.); (S.U.); (A.B.); (F.G.); (S.E.)
- Service de Médecine et Biologie de la Reproduction, CHRU de Tours, 37000 Tours, France
| | - Véronique Cadoret
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (C.V.); (V.C.); (P.J.-G.); (P.P.); (O.T.); (A.D.); (S.U.); (A.B.); (F.G.); (S.E.)
- Service de Médecine et Biologie de la Reproduction, CHRU de Tours, 37000 Tours, France
| | - Peggy Jarrier-Gaillard
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (C.V.); (V.C.); (P.J.-G.); (P.P.); (O.T.); (A.D.); (S.U.); (A.B.); (F.G.); (S.E.)
| | - Pascal Papillier
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (C.V.); (V.C.); (P.J.-G.); (P.P.); (O.T.); (A.D.); (S.U.); (A.B.); (F.G.); (S.E.)
| | - Ophélie Téteau
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (C.V.); (V.C.); (P.J.-G.); (P.P.); (O.T.); (A.D.); (S.U.); (A.B.); (F.G.); (S.E.)
| | - Alice Desmarchais
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (C.V.); (V.C.); (P.J.-G.); (P.P.); (O.T.); (A.D.); (S.U.); (A.B.); (F.G.); (S.E.)
| | - Svetlana Uzbekova
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (C.V.); (V.C.); (P.J.-G.); (P.P.); (O.T.); (A.D.); (S.U.); (A.B.); (F.G.); (S.E.)
| | - Aurélien Binet
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (C.V.); (V.C.); (P.J.-G.); (P.P.); (O.T.); (A.D.); (S.U.); (A.B.); (F.G.); (S.E.)
- Service de Chirurgie Pédiatrique Viscérale, Urologique, Plastique et Brûlés, CHRU de Tours, 37000 Tours, France
| | - Fabrice Guérif
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (C.V.); (V.C.); (P.J.-G.); (P.P.); (O.T.); (A.D.); (S.U.); (A.B.); (F.G.); (S.E.)
- Service de Médecine et Biologie de la Reproduction, CHRU de Tours, 37000 Tours, France
| | - Sebastien Elis
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (C.V.); (V.C.); (P.J.-G.); (P.P.); (O.T.); (A.D.); (S.U.); (A.B.); (F.G.); (S.E.)
| | - Virginie Maillard
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (C.V.); (V.C.); (P.J.-G.); (P.P.); (O.T.); (A.D.); (S.U.); (A.B.); (F.G.); (S.E.)
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Spicer LJ, Schütz LF. Effects of grape phenolics, myricetin and piceatannol, on bovine granulosa and theca cell proliferation and steroid production in vitro. Food Chem Toxicol 2022; 167:113288. [PMID: 35820639 DOI: 10.1016/j.fct.2022.113288] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 06/17/2022] [Accepted: 07/08/2022] [Indexed: 11/19/2022]
Abstract
Myricetin (a flavonol) and piceatannol (a stilbenoid) are naturally occurring phenolic compounds in red wine with cardio-protective and anti-carcinogenic effects, but their potential reproductive effects have not been investigated. Thus, the present study was designed to determine if myricetin and piceatannol can directly affect ovarian function using bovine granulosa cells (GC) and theca cells (TC) as in vitro model systems to evaluate effects on cell proliferation and steroid production. In Experiment 1 and 2, myricetin and piceatannol at 30 μM blocked insulin-like growth factor 1 (IGF1)-induced progesterone production by GC without affecting GC numbers. In contrast, myricetin stimulated IGF1-induced estradiol production, whereas piceatannol at 30 μM inhibited IGF1-induced estradiol production by 90% in GC. In Experiment 3 and 4, TC androstenedione and progesterone production and TC proliferation was inhibited by myricetin and piceatannol at 30 μM. In Experiment 5, piceatannol (30 μM) reduced the Fusarium mycotoxin, beauvericin (6 μM)-induced inhibition on progesterone production and cell proliferation. Myricetin (30 μM) reduced the inhibitory effect of beauvericin on estradiol but not progesterone production or cell proliferation. In conclusion, the red wine phenols, myricetin and piceatannol, directly affected GC and TC steroidogenesis, and were able to reduce some of the inhibitory effects of beauvericin on GC function.
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Affiliation(s)
- Leon J Spicer
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, 74078, USA.
| | - Luis F Schütz
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
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