1
|
Li C, Fu C, He T, Liu Z, Zhou J, Wu G, Liu H, Shen M. FSH preserves the viability of hypoxic granulosa cells via activating the HIF-1α-GAS6-Axl-Akt pathway. J Cell Physiol 2024; 239:e31162. [PMID: 37994152 DOI: 10.1002/jcp.31162] [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: 06/11/2023] [Revised: 11/07/2023] [Accepted: 11/13/2023] [Indexed: 11/24/2023]
Abstract
The developmental fate of ovarian follicles is primarily determined by the survival status (proliferation or apoptosis) of granulosa cells (GCs). Owing to the avascular environment within follicles, GCs are believed to live in a hypoxic niche. Follicle-stimulating hormone (FSH) has been reported to improve GCs survival by governing hypoxia-inducible factor-1α (HIF-1α)-dependent hypoxia response, but the underlying mechanisms remain poorly understood. Growth arrest-specific gene 6 (GAS6) is a secreted ligand of tyrosine kinase receptors, and has been documented to facilitate tumor growth. Here, we showed that the level of GAS6 was markedly increased in mouse ovarian GCs after the injection of FSH. Specifically, FSH-induced GAS6 expression was accompanied by HIF-1α accumulation under conditions of hypoxia both in vivo and in vitro, whereas inhibition of HIF-1α with small interfering RNAs/antagonist repressed both expression and secretion of GAS6. As such, Luciferase reporter assay and chromatin immunoprecipitation assay showed that HIF-1α directly bound to a hypoxia response element site within the Gas6 promoter and contributed to the regulation of GAS6 expression in response to FSH. Notably, blockage of GAS6 and/or its receptor Axl abrogated the pro-survival effects of FSH under hypoxia. Moreover, phosphorylation of Axl by GAS6 is required for FSH-mediated Akt activation and the resultant pro-survival phenotypes. Finally, the in vitro findings were verified in vivo, which showed that FSH-induced proliferative and antiapoptotic effects in ovarian GCs were diminished after blocking GAS6/Axl using HIF-1α antagonist. These findings highlight a novel function of FSH in preserving GCs viability against hypoxic stress by activating the HIF-1a-GAS6-Axl-Akt pathway.
Collapse
Affiliation(s)
- Chengyu Li
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Chen Fu
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Tong He
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zhaojun Liu
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jiaqi Zhou
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Gang Wu
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Honglin Liu
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Ming Shen
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
2
|
Praxedes ECG, Bezerra LGP, Luz NRN, da Silva AM, Pereira AF, Silva AR. In vitro culture of red-rumped agouti preantral follicles enclosed in fresh and vitrified ovarian tissues using TCM199 plus different pFSH concentrations. Anim Reprod 2023; 20:e20220113. [PMID: 37416866 PMCID: PMC10321683 DOI: 10.1590/1984-3143-ar2022-0113] [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: 11/01/2022] [Accepted: 04/27/2023] [Indexed: 07/08/2023] Open
Abstract
Considering the relevance of establishing biodiversity conservation tools, the study aimed to investigate the TCM199 supplemented with different follicle-stimulating hormone (FSH) concentrations on survival and development of fresh and vitrified preantral follicles enclosed in red-rumped agouti ovarian tissues cultured in vitro. In the first experiment, six pairs of ovaries were fragmented and cultured for 6 days according to groups: 10 ng/mL pFSH (FSH10 group) and 50 ng/mL (FSH50 group). Non-cultured tissues were considered as a control. In the second experiment, vitrified/warmed fragments of four pairs of ovaries were cultured with the best concentration of FSH established (cryopreserved and cultured group). Non-cryopreserved (fresh control group) and cryopreserved but non-cultured (non-cultured group) tissues were used as controls. For both experiments, preantral follicles were evaluated for survival and development using morphological and viability analysis by trypan blue staining. After culturing fresh samples, FSH50 showed a higher percentage of morphologically normal follicles when compared to FSH10 (P < 0.05). This same response was observed for primordial follicles. Regardless of the concentrations of FSH used during in vitro culture, no difference was observed regarding the percentage of viable follicles and diameters (P > 0.05). Thus, the FSH50 group was used for second experiment, in which 76.2 ± 7.2% normal preantral follicles previously vitrified was found after 6-day culture, also presenting the highest values (P < 0.05) for morphology of primordial follicles (95.2 ± 4.7%). Nevertheless, in vitro culture did not affect the viability and diameter of preantral follicles of cryopreserved tissues (P > 0.05). In conclusion, TCM199 supplemented with 50 ng/mL FSH was efficient in maintaining the in vitro survival of fresh and vitrified red-rumped agouti preantral follicles. This was the first study related to the in vitro culture of ovarian preantral follicles in this species, aiming to contribute to its conservation.
Collapse
Affiliation(s)
| | | | - Náyra Rachel Nascimento Luz
- Laboratório de Conservação de Germoplasma Animal, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| | - Andréia Maria da Silva
- Laboratório de Conservação de Germoplasma Animal, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| | | | - Alexandre Rodrigues Silva
- Laboratório de Conservação de Germoplasma Animal, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| |
Collapse
|
3
|
Devillers MM, François CM, Chester M, Corre R, Cluzet V, Giton F, Cohen-Tannoudji J, Guigon CJ. Androgen receptor signaling regulates follicular growth and steroidogenesis in interaction with gonadotropins in the ovary during mini-puberty in mice. Front Endocrinol (Lausanne) 2023; 14:1130681. [PMID: 37152943 PMCID: PMC10154677 DOI: 10.3389/fendo.2023.1130681] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 04/04/2023] [Indexed: 05/09/2023] Open
Abstract
In females, androgens contribute to ovarian diseases such as polycystic ovarian syndrome (PCOS), but their action is also crucial for ovarian physiology, i.e., follicular growth and estradiol (E2) synthesis during reproductive life, in interaction with the gonadotropins LH and FSH. However, it is unclear whether androgens already play a role in the ovary at mini-puberty, a phase of postnatal development with active follicular growth and high E2 levels. Therefore, we analyzed the potential actions of androgens on the ovary and their possible interaction with gonadotropins during this period in mice. We used molecular-based studies and pharmacological approaches in vivo and on cultured ovaries. We found that mini-pubertal ovaries produce significant amounts of testosterone and display androgen receptor (AR) expression in growing follicles, both under the control of LH. By blocking AR signaling either in vivo or in ovarian cultures, we found that this pathway may participate in the regulation of prepubertal E2 synthesis and follicular growth, possibly by regulating the expression of a number of key intra-ovarian regulators, including FSH receptor (Fshr), the aromatase enzyme converting androgens into estrogens (Cyp19a1) and the cell cycle inhibitor p27KIP1 (Cdkn1b). We further showed that AR may stimulate FSH-mediated regulation of Cyp19a1 through its action on Fshr mRNA abundance. Overall, this work supports the idea that AR signaling is already activated in mini-pubertal ovaries to regulate E2 synthesis and follicular growth, at the interplay with LH and FSH signaling. Its early action may, thus, contribute to the implementation of early ovarian function with possible impacts on reproductive function.
Collapse
Affiliation(s)
- Marie M. Devillers
- Université Paris-Cité, CNRS, Inserm, Biologie Fonctionnelle et Adaptative, Paris, France
| | - Charlotte M. François
- Université Paris-Cité, CNRS, Inserm, Biologie Fonctionnelle et Adaptative, Paris, France
| | - Mélanie Chester
- Université Paris-Cité, CNRS, Inserm, Biologie Fonctionnelle et Adaptative, Paris, France
| | - Raphaël Corre
- Université Paris-Cité, CNRS, Inserm, Biologie Fonctionnelle et Adaptative, Paris, France
| | - Victoria Cluzet
- Université Paris-Cité, CNRS, Inserm, Biologie Fonctionnelle et Adaptative, Paris, France
| | - Frank Giton
- AP-HP, Pôle biologie-Pathologie Henri Mondor, Inserm IMRB U955, Créteil, France
| | - Joëlle Cohen-Tannoudji
- Université Paris-Cité, CNRS, Inserm, Biologie Fonctionnelle et Adaptative, Paris, France
| | - Céline J. Guigon
- Université Paris-Cité, CNRS, Inserm, Biologie Fonctionnelle et Adaptative, Paris, France
- *Correspondence: Céline J. Guigon,
| |
Collapse
|
4
|
Devillers MM, Mhaouty-Kodja S, Guigon CJ. Deciphering the Roles & Regulation of Estradiol Signaling during Female Mini-Puberty: Insights from Mouse Models. Int J Mol Sci 2022; 23:ijms232213695. [PMID: 36430167 PMCID: PMC9693133 DOI: 10.3390/ijms232213695] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/29/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
Mini-puberty of infancy is a short developmental phase occurring in humans and other mammals after birth. In females, it corresponds to transient and robust activation of the hypothalamo-pituitary-ovarian (HPO) axis revealed by high levels of gonadotropin hormones, follicular growth, and increased estradiol production by the ovary. The roles of estradiol signaling during this intriguing developmental phase are not yet well known, but accumulating data support the idea that it aids in the implementation of reproductive function. This review aims to provide in-depth information on HPO activity during this particular developmental phase in several mammal species, including humans, and to propose emerging hypotheses on the putative effect of estradiol signaling on the development and function of organs involved in female reproduction.
Collapse
Affiliation(s)
- Marie M. Devillers
- Sorbonne Paris Cité, Université de Paris Cité, CNRS, Inserm, Biologie Fonctionnelle et Adaptative UMR 8251, Physiologie de l’Axe Gonadotrope U1133, CEDEX 13, 75205 Paris, France
| | - Sakina Mhaouty-Kodja
- Neuroscience Paris Seine—Institut de Biologie Paris Seine, Sorbonne Université, CNRS UMR 8246, INSERM U1130, 75005 Paris, France
| | - Céline J. Guigon
- Sorbonne Paris Cité, Université de Paris Cité, CNRS, Inserm, Biologie Fonctionnelle et Adaptative UMR 8251, Physiologie de l’Axe Gonadotrope U1133, CEDEX 13, 75205 Paris, France
- Correspondence:
| |
Collapse
|
5
|
Zhou Y, Richard S, Batchelor NJ, Oorschot DE, Anderson GM, Pankhurst MW. Anti-Müllerian hormone-mediated preantral follicle atresia is a key determinant of antral follicle count in mice. Hum Reprod 2022; 37:2635-2645. [PMID: 36107143 PMCID: PMC9627584 DOI: 10.1093/humrep/deac204] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 08/23/2022] [Indexed: 07/21/2023] Open
Abstract
STUDY QUESTION Does anti-Müllerian hormone (AMH) induce preantral follicle atresia in mice? SUMMARY ANSWER The present findings suggest that AMH-mediated follicle atresia only occurs in early follicles before they become sensitive to FSH. WHAT IS KNOWN ALREADY Most prior studies have investigated the ability of AMH to inhibit primordial follicle activation. Our previous study showed that AMH-overexpressing mice had fewer preantral follicles than expected after accounting for primordial follicle inhibition but the reason for this was not determined. STUDY DESIGN, SIZE, DURATION Cross-sectional-control versus transgenic/knockout mouse studies were carried out. PARTICIPANTS/MATERIALS, SETTING, METHODS Studies were conducted on female wild-type (Amh+/+), AMH-knockout (Amh-/-) and AMH overexpressing (Thy1.2-AMHTg/0) mice on a C57Bl/6J background (age: 42-120 days). The follicle counts were conducted for primordial, transitioning, primary, secondary and antral follicles in Amh-/- and Amh+/+ mice. After confirming that follicle development speeds were identical (proliferating cell nuclear antigen immunohistochemistry), the ratio of follicles surviving beyond each stage of folliculogenesis was determined in both genotypes. Evidence for increased rates of preantral follicle atresia was assessed by active caspase-3 immunohistochemistry in wild-type and Thy1.2-AMHTg/0 mice. MAIN RESULTS AND THE ROLE OF CHANCE Amh -/- mice at 100-120 days of age had lower primordial follicle counts but higher primordial follicle activation rates compared to Amh+/+ mice. These counteracting effects led to equivalent numbers of primordial follicles transitioning to the primary stage in Amh+/+ and Amh-/- mice. Despite this, Amh+/+ mice had fewer primary, secondary, small antral and medium antral follicles than Amh-/- mice indicating differing rates of developing follicle atresia between genotypes. Cleaved caspase-3 immunohistochemistry in Thy1.2-AMHTg/0 ovaries revealed high rates of granulosa cell and oocyte apoptosis in late primary/early secondary follicles of Thy1.2-AMHTg/0 mice. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION The findings were shown only in one species and additional research will be required to determine generalizability to other species. WIDER IMPLICATIONS OF THE FINDINGS This study is consistent with prior studies showing that Amh-/- mice have increased primordial follicle activation but these new findings demonstrate that AMH-mediated preantral follicle atresia is a predominant cause of the increased small antral follicle counts in Amh-/- mice. This suggests that the role of AMH is not to conserve the ovarian reserve to prolong fertility, but instead to prevent the antral follicle pool from becoming too large. While this study may demonstrate a new function for AMH, the biological purpose of this function requires further investigation, particularly in mono-ovulatory species. STUDY FUNDING/COMPETING INTEREST(S) This study was funded by the Health Research Council of New Zealand and the University of Otago. No competing interests to declare.
Collapse
Affiliation(s)
- Y Zhou
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - S Richard
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - N J Batchelor
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - D E Oorschot
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Brain Health Research Centre, University of Otago, Dunedin, New Zealand
| | - G M Anderson
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Centre for Neuroendocrinology, University of Otago, Dunedin, New Zealand
| | - M W Pankhurst
- Correspondence address. Department of Anatomy, University of Otago, PO Box 56, Dunedin 9054, New Zealand. Tel: +64-3-479-7440; E-mail:
| |
Collapse
|
6
|
Johnson GP, Onabanjo CGA, Hardy K, Butnev VY, Bousfield GR, Jonas KC. Follicle-Stimulating Hormone Glycosylation Variants Distinctly Modulate Pre-antral Follicle Growth and Survival. Endocrinology 2022; 163:6750033. [PMID: 36201606 PMCID: PMC9598563 DOI: 10.1210/endocr/bqac161] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Indexed: 11/19/2022]
Abstract
Follicle-stimulating hormone (FSH) is a key endocrine regulator of ovarian function. FSH is secreted as 2 macroglycosylation variants: partially glycosylated FSH (FSH21/18) and fully glycosylated FSH (FSH24). FSH21/18 is more potent than FSH24 at binding to and activating the FSH receptor (R). The ratio of FSH21/18:FSH24 has been shown to change with age, with FSH21/18 predominant at reproductive prime, and FSH24 predominant during perimenopause/menopause. How these FSH glycosylation variants modulate ovarian follicle functions remains largely unknown. The aim of this study was to investigate the effect of FSH glycosylation variants of pre-antral follicle function. Pre-antral follicles were isolated from 3- to 5-week-old C57BL/6 mice and treated ±10 ng/mL FSH21/18, FSH24, a ratio of 80:20 FSH21/18:FSH24 (to mimic reproductive prime), 50:50 FSH21/18:FSH24 (perimenopause), or 20:80 FSH21/18:FSH24 (menopause) for up to 96 hours. FSH21/18 and 80:20 FSH21/18:FSH24 increased follicle growth, in comparison with control, contrasting with FSH24 and 20:80 FSH21/18:FSH24. Survival rates were decreased in follicles treated with FSH24 or 20:80 FSH21/18:FSH24, with follicles undergoing basement membrane rupture and oocyte extrusion, increased Caspase3 gene and protein expression, and decreased markers of cell proliferation in FSH24 or 20:80 FSH21/18:FSH24-treated follicles. Moreover, this correlated with differential regulation of key genes modulating follicular functions. Pharmacological inhibitors of key FSH signal pathways suggests FSH21/18 and FSH24 initiate different FSHR signal pathway activation, which may determine their differential effects on follicle growth and survival. These data suggest that the nature of FSH glycosylation modulates the follicular cellular environment to regulate follicle growth and survival and may underpin the increasing ovarian resistance to FSH observed during aging.
Collapse
Affiliation(s)
- Gillian P Johnson
- Department of Women and Children's Health, School of Life Course and Population Health Sciences, Kings College London, London SE1 1UL, UK
- Institute of Reproductive and Developmental Biology, Imperial College London, London W12 0NN, UK
| | - Caitlan G A Onabanjo
- Department of Women and Children's Health, School of Life Course and Population Health Sciences, Kings College London, London SE1 1UL, UK
| | - Kate Hardy
- Institute of Reproductive and Developmental Biology, Imperial College London, London W12 0NN, UK
| | - Viktor Y Butnev
- Department of Biological Sciences, Wichita State University, Wichita, KS 67260, USA
| | - George R Bousfield
- Department of Biological Sciences, Wichita State University, Wichita, KS 67260, USA
| | - Kim C Jonas
- Correspondence: Kim C. Jonas, MD, PhD, Department of Women and Children's Health, School of Life Course and Population Health Sciences, Kings College London, Guy's Campus, London, SE1 1UL, UK.
| |
Collapse
|
7
|
Tanbakooei S, Haramshahi SMA, Vahabzadeh G, Barati M, Katebi M, Golab F, Shetabi Q, Niknam N, Roudbari L, Rajabi Fomeshi M, Amini Moghadam S. Ovarian Stem Cells Differentiation into Primary Oocytes Using Follicle Stimulating Hormone, Basic Fibroblast Growth Factor, and Neurotrophin 3. J Reprod Infertil 2022; 22:241-250. [PMID: 34987985 PMCID: PMC8669404 DOI: 10.18502/jri.v22i4.7649] [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: 10/26/2020] [Accepted: 05/25/2021] [Indexed: 11/24/2022] Open
Abstract
Background: In vitro obtaining oocytes can be an appropriate alternative for patients with gonadal insufficiency or cancer survivors. The purpose of the current research was isolating stem cells from ovarian cortical tissue as well as evaluating the effectiveness of follicle stimulating hormone (FSH), basic fibroblast growth factor (bFGF), and neurotrophin 3 (NT3) in differentiating to oocyte-like cells. Methods: A human ovary was dissected and cortical tissue pieces were cultured for cell isolation. Isolated cells were divided into 8 groups (3 cases in each group) of control, FSH, NT3, bFGF, FSH+NT3, FSH+bFGF, NT3+bFGF, and FSH+NT3+ bFGF. Pluripotency specific gene (OCT4-A and Nanog), initial germ cells (c-KIT and VASA) and PF growth initiators (GDF-9 and Lhx-8) were evaluated by qRTPCR. Experiments were performed in triplicate and there were 3 samples in each group. The results were analyzed using one-way ANOVA and p-value less than 0.05 was considered statistically significant. Results: Flow cytometry results showed that cells isolated from the ovarian cortex expressed markers of pluripotency. The results showed that the expression of Nanog, OCT4, GDF-9 and VASA was significantly increased in FSH+NT3 group, while treatment with bFGF caused significant expression of c-KIT and Lhx-8 (p<0.05). Also, according to the results, isolated cells treated with NT3 significantly increased c-KIT expression. Conclusion: According to our results, the ovarian cortex cells could be differentiated into primordial follicles if treated with the proper combination of FSH, bFGF, and NT3. These findings provided a new perspective for the future of in vitro gamete proudest.
Collapse
Affiliation(s)
- Sara Tanbakooei
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Amin Haramshahi
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Gelareh Vahabzadeh
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahmood Barati
- Department of Biotechnology, School of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Katebi
- Department of Anatomy, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Fereshteh Golab
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Qazal Shetabi
- Department of Biology, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Narges Niknam
- Department of Biology, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Leila Roudbari
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Motahareh Rajabi Fomeshi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Soheila Amini Moghadam
- Department of Gynecology, Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
8
|
Gao L, Gao H, Wang W. Androgens improve ovarian follicle function impaired by glucocorticoids through an androgen-IGF1-FSH synergistic effect. Front Endocrinol (Lausanne) 2022; 13:951928. [PMID: 36339442 PMCID: PMC9627217 DOI: 10.3389/fendo.2022.951928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 09/29/2022] [Indexed: 12/02/2022] Open
Abstract
High concentrations of glucocorticoids caused by chronic stress are known to affect ovarian function and cause diminished ovarian reserve. Androgens are essential for early-stage ovarian follicle development, but the effects and mechanisms of androgens on follicle development under chronic stress remain unclear. In this study, we aim to investigate the effects of high concentrations of glucocorticoids on the function of in vitro cultured ovarian cells and mouse early-stage ovarian follicles and to validate the hypothesis that androgen-insulin-like growth factor 1 (IGF1)-follicle-stimulating hormone (FSH) synergistic signaling helps to ameliorate the damage caused by high concentrations of glucocorticoids. KGN cells (human granulosa cell line) and mouse primary cells were treated with different concentrations of glucocorticoids, and the cell proliferation, apoptosis, and sex hormone secretion were detected. The effects of glucocorticoid and androgens on IGF1 receptor (IGF1R) and FSH receptor (FSHR) expression in KGN cells were detected by Western blot. Steroidogenic synthase expressions under androgens and androgen-IGF1-FSH combination treatment were examined by qPCR after manipulation using low and high concentrations of glucocorticoids. The mechanism of androgen regulation of IGF1R and FSHR was explored by small interfering RNA (siRNA) and chromatin immunoprecipitation (ChIP)-qPCR. Damage of glucocorticoids and the treatment effects of androgens were further validated in mouse ovarian follicles cultured in vitro. The results demonstrated that prolonged treatment with high-dose glucocorticoids reduced cell viability of granulosa cells, inhibited their sex hormone secretion, and impaired their sensitivity to IGF1 and FSH signaling by affecting IGF1R and FSHR functions. Androgens at an appropriate dose range improved early-stage follicle development and their hormone secretion under high-dose glucocorticoid treatment, which was related to increased transcription of Igf1r and Fshr. This work showed that excessive glucocorticoids impaired ovarian function and validated that balanced concentrations of androgens synergized with IGF1 and FSH to improve the function of early-stage ovarian follicles under conditions of chronic stress.
Collapse
Affiliation(s)
- Lingyun Gao
- Department of Integrated Traditional & Western Medicine, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Department of Integrated Traditional & Western Medicine, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Hongna Gao
- Department of Integrated Traditional & Western Medicine, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Department of Integrated Traditional & Western Medicine, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Wenjun Wang
- Department of Integrated Traditional & Western Medicine, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Department of Integrated Traditional & Western Medicine, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
- *Correspondence: Wenjun Wang,
| |
Collapse
|
9
|
Yu L, Liu M, Xu S, Wang Z, Liu T, Zhou J, Zhang D, Dong X, Pan B, Wang B, Liu S, Guo W. Follicular fluid steroid and gonadotropic hormone levels and mitochondrial function from exosomes predict embryonic development. Front Endocrinol (Lausanne) 2022; 13:1025523. [PMID: 36440207 PMCID: PMC9682035 DOI: 10.3389/fendo.2022.1025523] [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: 08/23/2022] [Accepted: 10/24/2022] [Indexed: 11/11/2022] Open
Abstract
PURPOSE Human follicular fluid (FF) is a complex biological fluid that contributes to the micro-environment of oocyte development. The aim of this study was to evaluate the role of steroid and gonadotropic hormones levels and mitochondrial function in embryo development during in vitro fertilization cycles. METHODS This was a cohort study of 138 women receiving IVF/ICSI, including 136 FF samples from 109 infertile women. FF steroid and gonadotropic hormones levels were tested by liquid chromatography-tandem mass spectrometry (LC-MS/MS) and immunoassays. The mRNA expression levels of mitochondrial electron transport chain (ETC) complex genes from FF exosomes were detected by qPCR. RESULTS Analysis of these individual FF concentrations revealed that LH and FSH concentrations were higher in follicles in which the oocyte developed into a top quality (TQ) blastocyst (LH: 9.44 ± 2.32mIU/ml, FSH: 9.32 ± 1.01mIU/ml) than those in which there was a failure of fertilization (LH: 5.30 ± 0.84mIU/ml, FSH: 6.91 ± 0.62mIU/ml). In contrast, follicular cortisone concentrations were lower for oocytes that resulted in a TQ blastocyst (12.20 ± 0.82mIU/ml). The receiver operating characteristic analysis showed that FF LH and FSH levels predicted TQ blastocyst with excellent AUC value of 0.711 and 0.747. Mitochondrial ETC complex I and III mRNA levels were increased in the FF exosomes of TQ blastocyst. Correlation analysis showed that mRNA levels of ETC complex I was positively correlated with LH and FSH levels in FF. CONCLUSION The levels of FF steroid and gonadotropic hormones from single follicle can predetermine subsequent embryo development to some extent. Furthermore, impaired exosome mitochondrial dysfunction is a potiential event that causes hormone change in embryo development.
Collapse
Affiliation(s)
- Li Yu
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Miao Liu
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shiji Xu
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhenxin Wang
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Te Liu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiaye Zhou
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Doudou Zhang
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xi Dong
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Baishen Pan
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Beili Wang
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
- *Correspondence: Wei Guo, ; Suying Liu, ; Beili Wang,
| | - Suying Liu
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, Shanghai, China
- *Correspondence: Wei Guo, ; Suying Liu, ; Beili Wang,
| | - Wei Guo
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of Laboratory Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, Xiamen, China
- Department of Laboratory Medicine, Wusong Branch, Zhongshan Hospital, Fudan University, Shanghai, China
- *Correspondence: Wei Guo, ; Suying Liu, ; Beili Wang,
| |
Collapse
|
10
|
Guo Y, Chen P, Li T, Jia L, Zhou Y, Huang J, Liang X, Zhou C, Fang C. Single-cell transcriptome and cell-specific network analysis reveal the reparative effect of neurotrophin-4 in preantral follicles grown in vitro. Reprod Biol Endocrinol 2021; 19:133. [PMID: 34481496 PMCID: PMC8417972 DOI: 10.1186/s12958-021-00818-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/24/2021] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND In-vitro-grow (IVG) of preantral follicles is essential for female fertility preservation, while practical approach for improvement is far from being explored. Studies have indicated that neurotrophin-4 (NT-4) is preferentially expressed in human preantral follicles and may be crucial to preantral follicle growth. METHODS We observed the location and expression of Tropomyosin-related kinase B (TRKB) in human and mouse ovaries with immunofluorescence and Western blot, and the relation between oocyte maturation and NT-4 level in follicular fluid (FF). Mice model was applied to investigate the effect of NT-4 on preantral follicle IVG. Single-cell RNA sequencing of oocyte combined with cell-specific network analysis was conducted to uncover the underlying mechanism of effect. RESULTS We reported the dynamic location of TRKB in human and mouse ovaries, and a positive relationship between human oocyte maturation and NT-4 level in FF. Improving effect of NT-4 was observed on mice preantral follicle IVG, including follicle development and oocyte maturation. Transcriptome analysis showed that the reparative effect of NT-4 on oocyte maturation might be mediated by regulation of PI3K-Akt signaling and subsequent organization of F-actin. Suppression of advanced stimulated complement system in granulosa cells might contribute to the improvement. Cell-specific network analysis revealed NT-4 may recover the inflammation damage induced by abnormal lipid metabolism in IVG. CONCLUSIONS Our data suggest that NT-4 is involved in ovarian physiology and may improve the efficiency of preantral follicle IVG for fertility preservation.
Collapse
Affiliation(s)
- Yingchun Guo
- grid.488525.6Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510275 Guangdong China
| | - Peigen Chen
- grid.488525.6Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510275 Guangdong China
| | - Tingting Li
- grid.488525.6Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510275 Guangdong China
| | - Lei Jia
- grid.488525.6Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510275 Guangdong China
| | - Yi Zhou
- grid.488525.6Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510275 Guangdong China
| | - Jiana Huang
- grid.488525.6Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510275 Guangdong China
| | - Xiaoyan Liang
- grid.488525.6Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510275 Guangdong China
| | - Chuanchuan Zhou
- grid.488525.6Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510275 Guangdong China
| | - Cong Fang
- grid.488525.6Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510275 Guangdong China
| |
Collapse
|
11
|
Wang X, Wang L, Sun Y, Wu D, Li J, Zhu L, Jiang S, Pan X. The optimized research of the in vitro culture of preantral follicles in mice. J Clin Lab Anal 2020; 34:e23498. [PMID: 33463764 PMCID: PMC7676217 DOI: 10.1002/jcla.23498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/06/2020] [Accepted: 07/12/2020] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE Efficiency of preantral follicle culture in vitro is low and is dependent on species, development stage, and follicle-stimulating hormone (FSH) concentration. Here, we optimized the preantral follicle in vitro culture system in mice. METHODS The primary follicles (PM follicles, 80-100 μm diameter ) and early secondary follicles (ES follicles, 110-130 μm diameter) isolated from 14-day female mice were cultured in mediums containing 10 mIU/mL or 100 mIU/mL r-FSH. The follicle growth and oocyte maturation were observed. Estradiol (E2) was detected by ELISA. FSH receptor (FSHR), Ki-67, 3β-HSD, CYP17, and CYP19 levels were detected by immunofluorescence and Western blot. RESULTS The antrum formation and oocyte maturation rates of ES follicles were significantly higher than those of PM follicles (P < .05). They were also significantly higher in ES follicles with 100 mIU/mL r-FSH than with 10 mIU/mL r-FSH (P < .05). A higher FSHR level was found in ES follicles. Meanwhile, with 10 mIU/mL r-FSH, the ES follicles exhibited a pattern of flat growth, whereas a pattern of stereoscopic spatial growth was observed with 100 mIU/mL r-FSH. The 100 mIU/mL r-FSH stimulated granulosa cell proliferation more significantly than 10 mIU/mL r-FSH. Moreover, FSH significantly promoted ES follicle granulosa cell proliferation compared to PM follicular granulosa cells. The secretion of E2 and the expressions of 3β-HSD, CYP 17, and CYP 19 in ES follicles with 100 mIU/mL r-FSH were significantly higher than those with 10 mIU/mL r-FSH. CONCLUSIONS The 100 mIU/mL r-FSH ideally promotes the development of ES follicles, whose growth pattern can more reasonably simulate the growth of follicles in vivo.
Collapse
Affiliation(s)
- Xiyan Wang
- Center for Reproductive MedicineJilin Medical UniversityJilinChina
| | - Liguo Wang
- Department of UrologyAffiliated Hospital of Jilin Medical UniversityJilinChina
| | - Yanmei Sun
- Center for Reproductive MedicineJilin Medical UniversityJilinChina
| | - Di Wu
- Center for Reproductive MedicineJilin Medical UniversityJilinChina
| | - Jiao Li
- Center for Reproductive MedicineJilin Medical UniversityJilinChina
| | - Lin Zhu
- Center for Reproductive MedicineJilin Medical UniversityJilinChina
| | - Shiwen Jiang
- Center for Reproductive MedicineWuxi Maternity and Child Health Care Hospital Affiliated to Nanjing Medical UniversityWuxiChina
| | - Xiaoyan Pan
- Center for Reproductive MedicineJilin Medical UniversityJilinChina
| |
Collapse
|
12
|
Egbert JR, Fahey PG, Reimer J, Owen CM, Evsikov AV, Nikolaev VO, Griesbeck O, Ray RS, Tolias AS, Jaffe LA. Follicle-stimulating hormone and luteinizing hormone increase Ca2+ in the granulosa cells of mouse ovarian follicles†. Biol Reprod 2020; 101:433-444. [PMID: 31087036 DOI: 10.1093/biolre/ioz085] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/08/2019] [Accepted: 05/13/2019] [Indexed: 12/16/2022] Open
Abstract
In mammalian ovarian follicles, follicle stimulating hormone (FSH) and luteinizing hormone (LH) signal primarily through the G-protein Gs to elevate cAMP, but both of these hormones can also elevate Ca2+ under some conditions. Here, we investigate FSH- and LH-induced Ca2+ signaling in intact follicles of mice expressing genetically encoded Ca2+ sensors, Twitch-2B and GCaMP6s. At a physiological concentration (1 nM), FSH elevates Ca2+ within the granulosa cells of preantral and antral follicles. The Ca2+ rise begins several minutes after FSH application, peaks at ∼10 min, remains above baseline for another ∼10 min, and depends on extracellular Ca2+. However, suppression of the FSH-induced Ca2+ increase by reducing extracellular Ca2+ does not inhibit FSH-induced phosphorylation of MAP kinase, estradiol production, or the acquisition of LH responsiveness. Like FSH, LH also increases Ca2+, when applied to preovulatory follicles. At a physiological concentration (10 nM), LH elicits Ca2+ oscillations in a subset of cells in the outer mural granulosa layer. These oscillations continue for at least 6 h and depend on the activity of Gq family G-proteins. Suppression of the oscillations by Gq inhibition does not inhibit meiotic resumption, but does delay the time to 50% ovulation by about 3 h. In summary, both FSH and LH increase Ca2+ in the granulosa cells of intact follicles, but the functions of these Ca2+ rises are only starting to be identified.
Collapse
Affiliation(s)
- Jeremy R Egbert
- Department of Cell Biology, UConn Health, Farmington, CT, USA
| | - Paul G Fahey
- Department of Neuroscience, Baylor College of Medicine, Houston, TX, USA
| | - Jacob Reimer
- Department of Neuroscience, Baylor College of Medicine, Houston, TX, USA
| | - Corie M Owen
- Department of Cell Biology, UConn Health, Farmington, CT, USA
| | - Alexei V Evsikov
- Department of Research and Development, Bay Pines Veteran Administration Healthcare System, Bay Pines, FL, USA
| | - Viacheslav O Nikolaev
- Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Russell S Ray
- Department of Neuroscience, Baylor College of Medicine, Houston, TX, USA
| | - Andreas S Tolias
- Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Center for Neuroscience and Artificial Intelligence, Baylor College of Medicine, Houston, TX, USA
| | | |
Collapse
|
13
|
Nagao S, Baba T, Fujibe Y, Adachi S, Ikeda K, Morishita M, Kuno Y, Honnma H, Endo T, Kiya T, Saito T. Pioglitazone suppresses excessive follicular development in murine preantral follicles. J Ovarian Res 2019; 12:82. [PMID: 31472696 PMCID: PMC6717350 DOI: 10.1186/s13048-019-0556-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 08/19/2019] [Indexed: 01/09/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is an endocrine disease that is common in women in their reproductive period. Patients with this disease suffer from anovulation and hyperandrogenism. Ovulation induction with exogenous gonadotropin often causes ovarian hyperstimulation syndrome because many small antral follicles pause in their growth. Treatment with insulin sensitizers is reportedly effective for both anovulation associated with PCOS, and suppression of excessive follicular growth; however, the underlying mechanism of action remains unknown. Although pioglitazone is known as an insulin sensitizer, it also has a potent modulator of cell growth and apoptosis irrespective of insulin resistance. To clarify the effect of pioglitazone on follicular growth, we performed in vitro culture of murine preantral follicles. Secondary follicles (100-160 μm in diameter) isolated from 6-week-old ICR mice were individually cultured for 13 days. Culture conditions were as follows: 1) follicle-stimulating hormone (FSH; 33 mIU/mL; control), 2) FSH plus dihydrotestosterone (DHT; 500 ng/mL), 3) FSH plus pioglitazone (5 ng/mL), and 4) FSH plus DHT/pioglitazone. Survival rate and follicle diameter were evaluated, and concentrations of estradiol (E2) and vascular endothelial growth factor (VEGF) in culture media were measured. mRNA expression of various growth-promoting factors and Vegf within follicles were also assessed. Although no significant differences were observed with regard to survival rate, follicle diameters on day 13 were significantly different. Compared with the control group, the DHT group showed enhanced growth, while groups administered pioglitazone showed stagnation of the accelerated growth induced by DHT. Although DHT treatment enhanced the expression of bone morphogenetic protein 2 (Bmp2) mRNA, pioglitazone exposure suppressed induction of Bmp2 mRNA by DHT. Vegf mRNA and protein expression were also significantly reduced when pioglitazone was added to culture media containing DHT. Administration of pioglitazone negatively affected follicular growth and VEGF levels, which may suppress excessive follicular growth and prevent ovarian hyperstimulation syndrome.
Collapse
Affiliation(s)
- Sachiko Nagao
- Present address: Department of Obstetrics and Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan.
| | - Tsuyoshi Baba
- Present address: Department of Obstetrics and Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Yuya Fujibe
- Present address: Department of Obstetrics and Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Sayaka Adachi
- Present address: Department of Obstetrics and Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Keiko Ikeda
- Present address: Department of Obstetrics and Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Miyuki Morishita
- Present address: Department of Obstetrics and Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Yoshika Kuno
- Present address: Department of Obstetrics and Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Hiroyuki Honnma
- Sapporo ART Clinic, 1-4 North 7 West 4, Sapporo, Hokkaido, 060-0807, Japan
| | - Toshiaki Endo
- Present address: Department of Obstetrics and Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Tamotsu Kiya
- Ena Ladies Clinic, Hanakawa South 9-1-86-2, Ishikari, Hokkaido, 061-3209, Japan
| | - Tsuyoshi Saito
- Present address: Department of Obstetrics and Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| |
Collapse
|
14
|
Fujibe Y, Baba T, Nagao S, Adachi S, Ikeda K, Morishita M, Kuno Y, Suzuki M, Mizuuchi M, Honnma H, Endo T, Saito T. Androgen potentiates the expression of FSH receptor and supports preantral follicle development in mice. J Ovarian Res 2019; 12:31. [PMID: 30947734 PMCID: PMC6450008 DOI: 10.1186/s13048-019-0505-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 03/26/2019] [Indexed: 01/10/2023] Open
Abstract
Hyperandrogenism is one of the cardinal symptoms in polycystic ovary syndrome and plays a key role in the pathogenesis of polycystic ovary syndrome. However, the precise effects and mechanisms of excess androgen during follicular development are still unclear. Here we investigated the effects of androgen on mouse follicle development in vitro. Androgen did not affect the growth of follicles smaller than 160–180 μm in the presence of follicle-stimulating hormone (FSH). However, in the presence of low FSH, androgen supported the growth of follicles larger than 160–180 μm, a size at which growing follicles acquire FSH-dependency. Androgen did not change the mRNA expression of various growth-promoting factors but did increase mRNA expression of the FSH receptor. We suggest that androgen has a positive impact on follicle development by augmentation of the actions of FSH. Therefore, FSH-responsive but FSH-independent follicles grow in the presence of a certain level of FSH or androgen, and androgen compensates for FSH deficiency in FSH-dependent follicles.
Collapse
Affiliation(s)
- Yuya Fujibe
- Present Address: Department of Obstetrics & Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Tsuyoshi Baba
- Present Address: Department of Obstetrics & Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan.
| | - Sachiko Nagao
- Present Address: Department of Obstetrics & Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Sayaka Adachi
- Present Address: Department of Obstetrics & Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Keiko Ikeda
- Present Address: Department of Obstetrics & Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Miyuki Morishita
- Present Address: Department of Obstetrics & Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Yoshika Kuno
- Present Address: Department of Obstetrics & Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Masahiro Suzuki
- Present Address: Department of Obstetrics & Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Masahito Mizuuchi
- Present Address: Department of Obstetrics & Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Hiroyuki Honnma
- Sapporo ART clinic, North 7 West 4, Sapporo, Hokkaido, 060-0807, Japan
| | - Toshiaki Endo
- Present Address: Department of Obstetrics & Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| | - Tsuyoshi Saito
- Present Address: Department of Obstetrics & Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido, 060-8543, Japan
| |
Collapse
|
15
|
Baba T, Ting AY, Tkachenko O, Xu J, Stouffer RL. Direct actions of androgen, estrogen and anti-Müllerian hormone on primate secondary follicle development in the absence of FSH in vitro. Hum Reprod 2018; 32:2456-2464. [PMID: 29077845 DOI: 10.1093/humrep/dex322] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 10/03/2017] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION What are effects of androgen, estrogen and anti-Müllerian hormone (AMH), independent of FSH action, on the development and function of primate follicles from the preantral to small antral stage in vitro? SUMMARY ANSWER Androgen and estrogen, but not AMH, promote follicle survival and growth in vitro, in the absence of FSH. However, their growth-promoting effects are limited to the preantral to early antral stage. WHAT IS KNOWN ALREADY FSH supports primate preantral follicle development in vitro. Androgen and estrogen augment follicle survival and growth in the presence of FSH during culture. STUDY DESIGN SIZE, DURATION Nonhuman primate model; randomized, control versus treatment groups. Rhesus macaque (n = 6) secondary follicles (n = 24 per animal per treatment group) were cultured for 5 weeks. PARTICIPANTS/MATERIALS, SETTING, METHODS Follicles were encapsulated in 0.25% (w/v) alginate and cultured individually in modified alpha minimum essential media with (i) FSH (1 ng/ml; control), (ii) no FSH, (iii) no FSH + estradiol (E2; 100 pg/ml)/dihydrotestosterone (DHT; 50 ng/ml) and (iv) no FSH + AMH (50 ng/ml). In a second experiment, follicles were cultured with (i) FSH (1 ng/ml), (ii) no FSH, (iii) no FSH + E2 (1 ng/ml), (iv) no FSH + DHT (50 ng/ml) and (v) no FSH + E2/DHT. Follicle survival, antrum formation and growth pattern were evaluated. Progesterone (P4), E2 and AMH concentrations in culture media were measured. MAIN RESULTS AND THE ROLE OF CHANCE In the first experiment, FSH deprivation significantly decreased (P < 0.05) follicle survival rates in the no FSH group (16 ± 5%), compared to CTRL (66 ± 9%). E2/DHT (49 ± 5%), but not AMH (27 ± 8%), restored follicle survival rate to the CTRL level. Similarly, antrum formation rates were higher (P < 0.05) in CTRL (56 ± 6%) and E2/DHT groups (54 ± 14%), compared to no FSH (0 ± 0%) and AMH (11 ± 11%) groups. However, follicle growth rate after antrum formation and follicle diameter at week 5 was reduced (P < 0.05) in the E2/DHT group (405 ± 25 μm), compared to CTRL (522 ± 29 μm). Indeed, the proportion of fast-grow follicles at week 5 was higher in CTRL (29% ± 5), compared to E2/DHT group (10 ± 3%). No fast-grow follicles were observed in no FSH and AMH groups. AMH levels at week 3 remained similar in all groups. However, media concentrations of P4 and E2 at week 5 were lower (P < 0.05, undetectable) in no FSH, E2/DHT and AMH groups, compared to CTRL (P4 = 93 ± 10 ng/ml; E2 = 4 ± 1 ng/ml). In the second experiment, FSH depletion diminished follicle survival rate (66 ± 8% in control versus 45 ± 9% in no FSH, P = 0.034). E2 plus DHT (31.5 ± 11%) or DHT alone (69 ± 9%) restored follicle survival rate to the control (FSH) level as expected. Also, E2 plus DHT or DHT alone improved antrum formation rate. However, in the absence of FSH, E2 plus DHT or DHT alone did not support growth, in terms of follicle diameter, or steroid (P4 or E2) production after the antral stage. LIMITATIONS REASONS FOR CAUTION This study is limited to in vitro effects of E2, DHT and AMH during the interval from the secondary to small antral stage of macaque follicular development. In addition, the primate follicle pool is heterogeneous and differs between animals; therefore, even though only secondary follicles were selected, follicle growth and developmental outcomes might differ from one animal to another. WIDER IMPLICATIONS OF THE FINDINGS This study provides novel information on the possible actions of estrogen and androgen during early follicular development in primates. Our results suggest that sequential exposure of preantral follicles to local factors, e.g. E2 and DHT, followed by gonadotropin once the follicle reaches the antral stage, may better mimic primate folliculogenesis in vivo. STUDY FUNDING/COMPETING INTEREST(S) Research reported in this publication was supported by the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Center for Translational Research on Reproduction and Infertility 5P50HD071836, and the NIH Primate Centers Program 8P510D011092. There are no conflicts of interest.
Collapse
Affiliation(s)
- T Baba
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, 505 NW 185th Avenue, Beaverton, OR 97006, USA
- Department of Obstetrics and Gynecology, Sapporo Medical University, South 1 West 16, Sapporo, Hokkaido 060-8543 Japan
| | - A Y Ting
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, 505 NW 185th Avenue, Beaverton, OR 97006, USA
| | - O Tkachenko
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, 505 NW 185th Avenue, Beaverton, OR 97006, USA
| | - J Xu
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, 505 NW 185th Avenue, Beaverton, OR 97006, USA
- Department of Obstetrics and Gynecology, School of Medicine, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA
| | - R L Stouffer
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, 505 NW 185th Avenue, Beaverton, OR 97006, USA
- Department of Obstetrics and Gynecology, School of Medicine, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA
| |
Collapse
|
16
|
Stocco C, Baumgarten SC, Armouti M, Fierro MA, Winston NJ, Scoccia B, Zamah AM. Genome-wide interactions between FSH and insulin-like growth factors in the regulation of human granulosa cell differentiation. Hum Reprod 2017; 32:905-914. [PMID: 28158425 DOI: 10.1093/humrep/dex002] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Accepted: 01/05/2017] [Indexed: 12/13/2022] Open
Abstract
Study question Is the genome-wide response of human cumulus cells to FSH and insulin-like growth factors (IGFs) comparable to the response observed in undifferentiated granulosa cells (GCs)? Summary answer FSH actions in human cumulus cells mimic those observed in preantral undifferentiated GCs from laboratory animals, and approximately half of the regulated genes are dependent on the simultaneous activation of the IGF1 receptor (IGF1R). What is known already Animal studies have shown that FSH and the IGFs system are required for follicle growth and maturation. In humans, IGF levels in the follicular fluid correlate with patients' responses to IVF protocols. The main targets of FSH and IGFs in the ovary are the GCs; however, the genomic mechanisms involved in the response of GCs to these hormones are unknown. Study design, size, duration Human cumulus cells isolated from IVF patients were cultured for 48 h in serum-free media in the presence of vehicle, FSH, IGF1R inhibitor or their combination. Participants/materials, setting, methods Discarded cumulus cells were donated to research by reproductive-aged women undergoing IVF due to non-ovarian etiologies of infertility at a university-affiliated clinic. The effect of FSH and/or IGF1R inhibition on cumulus cell function was evaluated using Affymetrix microarrays, quantitative PCR, western blot, promoter assays and hormone level measurements. Main results and the role of chance The findings demonstrate that human cumulus cells from IVF patients respond to FSH with the expression of genes known to be markers of the preantral to preovulatory differentiation of GCs. These results also demonstrate that ~50% of FSH-regulated genes require IGF1R activity and suggest that several aspects of follicle growth are coordinately regulated by FSH and IGFs in humans. This novel approach will allow for future mechanistic and molecular studies on the regulation of human follicle maturation. Large scale data Data set can be accessed at Gene Expression Omnibus number GSE86427. Limitations, reasons for caution Experiments were performed using primary human cumulus cells. This may not represent the response of intact follicles. Wider implications of the findings Understanding the mechanisms involved in the regulation of GC differentiation by FSH and IGF in humans will contribute to improving treatments for infertility. Study funding/competing interest(s) The project was financed by the National Instituted of Health grant number R56HD086054 and R01HD057110 (C.S.). The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript. We have no competing interests to declare.
Collapse
Affiliation(s)
- Carlos Stocco
- Department of Physiology and Biophysics, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Sarah C Baumgarten
- Department of Physiology and Biophysics, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Marah Armouti
- Department of Physiology and Biophysics, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Michelle A Fierro
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Nicola J Winston
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Bert Scoccia
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - A Musa Zamah
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| |
Collapse
|
17
|
A novel action of follicle-stimulating hormone in the ovary promotes estradiol production without inducing excessive follicular growth before puberty. Sci Rep 2017; 7:46222. [PMID: 28397811 PMCID: PMC5387682 DOI: 10.1038/srep46222] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 03/13/2017] [Indexed: 01/19/2023] Open
Abstract
In cyclic females, FSH stimulates ovarian estradiol (E2) production and follicular growth up to the terminal stage. A transient elevation in circulating FSH and E2 levels occurs shortly after birth. But what could be the action of FSH on the ovary during this period, and in particular how it stimulates ovarian steroidogenesis without supporting terminal follicular maturation is intriguing. By experimentally manipulating FSH levels, we demonstrate in mice that the mid-infantile elevation in FSH is mandatory for E2 production by the immature ovary, but that it does not stimulate follicle growth. Importantly, FSH increases aromatase expression to stimulate E2 synthesis, however it becomes unable to induce cyclin D2, a major driver of granulosa cell proliferation. Besides, although FSH prematurely induces luteinizing hormone (LH) receptor expression in granulosa cells, LH pathway is not functional in these cells to induce their terminal differentiation. In line with these results, supplying infantile mice with a superovulation regimen exacerbates E2 production, but it does not stimulate the growth of follicles and it does not induce ovulation. Overall, our findings unveil a regulation whereby high postnatal FSH concentrations ensure the supply of E2 required for programming adult reproductive function without inducing follicular maturation before puberty.
Collapse
|
18
|
Laird M, Thomson K, Fenwick M, Mora J, Franks S, Hardy K. Androgen Stimulates Growth of Mouse Preantral Follicles In Vitro: Interaction With Follicle-Stimulating Hormone and With Growth Factors of the TGFβ Superfamily. Endocrinology 2017; 158:920-935. [PMID: 28324051 PMCID: PMC5460807 DOI: 10.1210/en.2016-1538] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 01/13/2017] [Indexed: 01/06/2023]
Abstract
Androgens are essential for the normal function of mature antral follicles but also have a role in the early stages of follicle development. Polycystic ovary syndrome (PCOS), the most common cause of anovulatory infertility, is characterized by androgen excess and aberrant follicle development that includes accelerated early follicle growth. We have examined the effects of testosterone and dihydrotestosterone (DHT) on development of isolated mouse preantral follicles in culture with the specific aim of investigating interaction with follicle-stimulating hormone (FSH), the steroidogenic pathway, and growth factors of the TGFβ superfamily that are known to have a role in early follicle development. Both testosterone and DHT stimulated follicle growth and augmented FSH-induced growth and increased the incidence of antrum formation among the granulosa cell layers of these preantral follicles after 72 hours in culture. Effects of both androgens were reversed by the androgen receptor antagonist flutamide. FSH receptor expression was increased in response to both testosterone and DHT, as was that of Star, whereas Cyp11a1 was down-regulated. The key androgen-induced changes in the TGFβ signaling pathway were down-regulation of Amh, Bmp15, and their receptors. Inhibition of Alk6 (Bmpr1b), a putative partner for Amhr2 and Bmpr2, by dorsomorphin resulted in augmentation of androgen-stimulated growth and modification of androgen-induced gene expression. Our findings point to varied effects of androgen on preantral follicle growth and function, including interaction with FSH-activated growth and steroidogenesis, and, importantly, implicate the intrafollicular TGFβ system as a key mediator of androgen action. These findings provide insight into abnormal early follicle development in PCOS.
Collapse
Affiliation(s)
- Mhairi Laird
- Institute of Reproductive and Developmental Biology, Imperial College London, Hammersmith Hospital, London, United Kingdom
| | - Kacie Thomson
- Institute of Reproductive and Developmental Biology, Imperial College London, Hammersmith Hospital, London, United Kingdom
| | - Mark Fenwick
- Institute of Reproductive and Developmental Biology, Imperial College London, Hammersmith Hospital, London, United Kingdom
| | - Jocelyn Mora
- Institute of Reproductive and Developmental Biology, Imperial College London, Hammersmith Hospital, London, United Kingdom
| | - Stephen Franks
- Institute of Reproductive and Developmental Biology, Imperial College London, Hammersmith Hospital, London, United Kingdom
| | - Kate Hardy
- Institute of Reproductive and Developmental Biology, Imperial College London, Hammersmith Hospital, London, United Kingdom
| |
Collapse
|