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Ge H, Chang H, Wang Y, Cong J, Liu Y, Zhang B, Wu X. Establishment and validation of a nomogram model for predicting ovulation in the PCOS women. Medicine (Baltimore) 2024; 103:e37733. [PMID: 38579058 PMCID: PMC10994453 DOI: 10.1097/md.0000000000037733] [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: 10/24/2023] [Accepted: 03/06/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND The mechanisms underlying ovulatory dysfunction in PCOS remain debatable. This study aimed to identify the factors affecting ovulation among PCOS patients based on a large sample-sized randomized control trial. METHODS Data were obtained from a multi-centered randomized clinical trial, the PCOSAct, which was conducted between 2011 and 2015. Univariate and multivariate analysis using binary logistic regression were used to construct a prediction model and nomogram. The accuracy of the model was assessed using receiver operating characteristic (ROC) curves and calibration curves. RESULTS The predictive variables included in the training dataset model were luteinizing hormone (LH), free testosterone, body mass index (BMI), period times per year, and clomiphene treatment. The ROC curve for the model in the training dataset was 0.81 (95% CI [0.77, 0.85]), while in the validation dataset, it was 0.7801 (95% CI [0.72, 0.84]). The model showed good discrimination in both the training and validation datasets. Decision curve analysis demonstrated that the nomogram designed for ovulation had clinical utility and superior discriminative ability for predicting ovulation. CONCLUSIONS The nomogram composed of LH, free testosterone, BMI, period times per year and the application of clomiphene may predict the ovulation among PCOS patients.
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Affiliation(s)
- Hang Ge
- Heilongjiang University of Chinese Medicine, Harbin Heilongjiang, China
| | - Hui Chang
- The First Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine, Harbin Heilongjiang, China
| | - Yu Wang
- The First Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine, Harbin Heilongjiang, China
| | - Jing Cong
- The First Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine, Harbin Heilongjiang, China
| | - Yang Liu
- Heilongjiang University of Chinese Medicine, Harbin Heilongjiang, China
| | - Bei Zhang
- Xuzhou Central Hospital, Xuzhou Jiangsu, China
| | - Xiaoke Wu
- The First Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine, Harbin Heilongjiang, China
- Heilongjiang provincial hospital, Harbin Heilongjiang, China
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2
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Singh R, Kaur S, Yadav S, Bhatia S. Gonadotropins as pharmacological agents in assisted reproductive technology and polycystic ovary syndrome. Trends Endocrinol Metab 2023; 34:194-215. [PMID: 36863888 DOI: 10.1016/j.tem.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/29/2023] [Accepted: 02/02/2023] [Indexed: 03/04/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a complex endocrinopathy associated with subfertility/infertility and pregnancy complications. Most PCOS women opt for assisted reproductive technologies (ART) for successful conception; however, optimization of the relative doses of the gonadotropins [follicle-stimulating hormone (FSH), luteinizing hormone (LH)/human chorionic gonadotropin (hCG)] for appropriate steroidogenesis, without causing ovarian hyperstimulatory syndrome (OHSS), is challenging. Embryonic factors probably do not contribute to pregnancy loss in PCOS women, albeit hormonal imbalance impairs the metabolic microenvironment critical for oocyte maturation and endometrial receptivity. Certain clinical studies have confirmed the role of metabolic corrections in increasing the rate of pregnancy in PCOS women. This review focuses on the impact of untimely high LHCGR and/or LH levels on oocyte/embryo quality, pregnancy outcomes in ART, and exploring LHCGR as a potential drug target in PCOS women.
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Affiliation(s)
- Rita Singh
- Division of Molecular Endocrinology and Reproduction, Department of Zoology, University of Delhi, Delhi, India.
| | - Surleen Kaur
- Division of Molecular Endocrinology and Reproduction, Department of Zoology, University of Delhi, Delhi, India
| | - Suman Yadav
- Division of Molecular Endocrinology and Reproduction, Department of Zoology, University of Delhi, Delhi, India
| | - Smita Bhatia
- Department of Zoology, Ramjas College, University of Delhi, Delhi, India
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Lentz LS, Stutz AJ, Meyer N, Schubert K, Karkossa I, von Bergen M, Zenclussen AC, Schumacher A. Human chorionic gonadotropin promotes murine Treg cells and restricts pregnancy-harmful proinflammatory Th17 responses. Front Immunol 2022; 13:989247. [PMID: 36203576 PMCID: PMC9531259 DOI: 10.3389/fimmu.2022.989247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/25/2022] [Indexed: 11/15/2022] Open
Abstract
An equilibrium between proinflammatory and anti-inflammatory immune responses is essential for maternal tolerance of the fetus throughout gestation. To study the participation of fetal tissue-derived factors in this delicate immune balance, we analyzed the effects of human chorionic gonadotropin (hCG) on murine Treg cells and Th17 cells in vitro, and on pregnancy outcomes, fetal and placental growth, blood flow velocities and remodeling of the uterine vascular bed in vivo. Compared with untreated CD4+CD25+ T cells, hCG increased the frequency of Treg cells upon activation of the LH/CG receptor. hCG, with the involvement of IL-2, also interfered with induced differentiation of CD4+ T cells into proinflammatory Th17 cells. In already differentiated Th17 cells, hCG induced an anti-inflammatory profile. Transfer of proinflammatory Th17 cells into healthy pregnant mice promoted fetal rejection, impaired fetal growth and resulted in insufficient remodeling of uterine spiral arteries, and abnormal flow velocities. Our works show that proinflammatory Th17 cells have a negative influence on pregnancy that can be partly avoided by in vitro re-programming of proinflammatory Th17 cells with hCG.
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Affiliation(s)
- Lea S. Lentz
- Experimental Obstetrics and Gynecology, Medical Faculty, Health Campus Immunology, Infectilogy and Inflammation (GC-I), Otto-von-Guericke University, Magdeburg, Germany
| | - Annika J. Stutz
- Experimental Obstetrics and Gynecology, Medical Faculty, Health Campus Immunology, Infectilogy and Inflammation (GC-I), Otto-von-Guericke University, Magdeburg, Germany
| | - Nicole Meyer
- Experimental Obstetrics and Gynecology, Medical Faculty, Health Campus Immunology, Infectilogy and Inflammation (GC-I), Otto-von-Guericke University, Magdeburg, Germany
- Department of Environmental Immunology, Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Kristin Schubert
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Isabel Karkossa
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Martin von Bergen
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research, Leipzig, Germany
- Faculty of Life Sciences, Institute of Biochemistry, University of Leipzig, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Ana C. Zenclussen
- Experimental Obstetrics and Gynecology, Medical Faculty, Health Campus Immunology, Infectilogy and Inflammation (GC-I), Otto-von-Guericke University, Magdeburg, Germany
- Department of Environmental Immunology, Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Anne Schumacher
- Experimental Obstetrics and Gynecology, Medical Faculty, Health Campus Immunology, Infectilogy and Inflammation (GC-I), Otto-von-Guericke University, Magdeburg, Germany
- Department of Environmental Immunology, Helmholtz Centre for Environmental Research, Leipzig, Germany
- *Correspondence: Anne Schumacher,
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4
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Kim YY, Yun JW, Kim SW, Kim H, Kang BC, Ku SY. Synergistic Promoting Effects of X-Linked Inhibitor of Apoptosis Protein and Matrix on the In Vitro Follicular Maturation of Marmoset Follicles. Tissue Eng Regen Med 2021; 19:93-103. [PMID: 34741748 DOI: 10.1007/s13770-021-00387-4] [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: 08/02/2021] [Revised: 08/02/2021] [Accepted: 08/16/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND In vitro follicular maturation (IVFM) of ovarian follicles is an emerging option for fertility preservation. Many paracrine factors and two-dimensional or three-dimensional (3D) environments have been used for optimization. However, since most studies were conducted using the murine model, the physiological differences between mice and humans limit the interpretation and adaptation of the results. Marmoset monkey is a non-human primate (NHPs) with more similar reproductive physiology to humans. In this study, we attempted to establish a 3D matrix (Matrtigel)-based IVFM condition for marmoset ovarian follicles in combination with anti-apoptotic factor, X-linked inhibitor of apoptosis protein (XIAP). METHODS Marmoset follicles were isolated as individual follicles and cultured in a single drop with the addition of 0, 10, and 100 μg/mL of XIAP molecules. Matured oocytes and granulosa cells from mature follicles were collected and analyzed. The average number of isolated follicles was less than 100, and primordial and antral follicles were abundant in the ovaries. RESULTS IVFM of marmoset follicles in 3D matrix conditions with XIAP increased the rates of survival and in vitro follicle development. Furthermore, oocytes from the 3D cultures were successfully fertilized and developed in vitro. The addition of XIAP increased the secretion of estradiol and aromatase. Furthermore, expression of granulosa-specific genes, such as bone morphogenetic protein 15, Oct4, and follicle-stimulating hormone receptor were upregulated in the in vitro-matured follicles than in normal, well-grown, and atretic follicles. Apoptosis-related B-cell lymphoma-2 was highly expressed in the atretic follicles than in the XIAP-treated follicles, and higher caspase-3 was localized in the XIAP-treated follicles. CONCLUSION In this study, we attempted to establish a 3D-matrix-based marmoset IVFM condition and demonstrated the synergistic effects of XIAP. The use of a 3D matrix may be applied as an optimal culture condition for marmoset ovarian follicles.
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Affiliation(s)
- Yoon Young Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.,Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Jun-Won Yun
- Department of Medical and Biological Sciences, The Catholic University of Korea, 327 Sosa-ro, Bucheon, 14662, Korea
| | - Sung Woo Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.,Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Hoon Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.,Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Byeong-Cheol Kang
- Department of Medicine, Seoul National University College of Medicine, 103 Daehak ro, Jongno-gu, Seoul, 03080, Korea
| | - Seung-Yup Ku
- Department of Obstetrics and Gynecology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea. .,Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea. .,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
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5
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Kim SW, Kim YY, Kim H, Ku SY. Recent Advancements in Engineered Biomaterials for the Regeneration of Female Reproductive Organs. Reprod Sci 2021; 28:1612-1625. [PMID: 33797052 DOI: 10.1007/s43032-021-00553-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 03/17/2021] [Indexed: 12/14/2022]
Abstract
Various gynecologic diseases and chemoradiation or surgery for the management of gynecologic malignancies may damage the uterus and ovaries, leading to clinical problems such as infertility or early menopause. Embryo or oocyte cryopreservation-the standard method for fertility preservation-is not a feasible option for patients who require urgent treatment because the procedure requires ovarian stimulation for at least several days. Hormone replacement therapy (HRT) for patients diagnosed with premature menopause is contraindicated for patients with estrogen-dependent tumors or a history of thrombosis. Furthermore, these methods cannot restore the function of the uterus and ovaries. Although autologous transplantation of cryopreserved ovarian tissue is being attempted, it may re-introduce malignant cells after cancer treatment. With the recent development in regenerative medicine, research on engineered biomaterials for the restoration of female reproductive organs is being actively conducted. The use of engineered biomaterials is a promising option in the field of reproductive medicine because it can overcome the limitations of current therapies. Here, we review the ideal properties of biomaterials for reproductive tissue engineering and the recent advancements in engineered biomaterials for the regeneration of female reproductive organs.
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Affiliation(s)
- Sung Woo Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, 03080, South Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea
| | - Yoon Young Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, 03080, South Korea. .,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea.
| | - Hoon Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, 03080, South Korea. .,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea. .,Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, 2024 E. Monument St, Baltimore, MD, 21205, USA.
| | - Seung-Yup Ku
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, 03080, South Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea
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6
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Ferreira ACA, Sá NAR, Cadenas J, Correia HHV, Guerreiro DD, Alves BG, Lima LF, Celestino JJH, Rodrigues APPR, Gastal EL, Figueiredo JR. Pituitary porcine FSH, and recombinant bovine and human FSH differentially affect growth and relative abundances of mRNA transcripts of preantral and early developing antral follicles in goats. Anim Reprod Sci 2020; 219:106461. [PMID: 32828391 DOI: 10.1016/j.anireprosci.2020.106461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 04/02/2020] [Accepted: 04/03/2020] [Indexed: 01/09/2023]
Abstract
Three different sources of FSH (porcine pituitary, pFSH; recombinant bovine, rbFSH; and recombinant human, rhFSH) were compared during in vitro culture of preantral and early antral follicles of goats for 18 days. Treatments were: base medium supplemented with no FSH (control), 10, 50, or 100 mIU/mL pFSH (pFSH10, pFSH50, and pFSH100, respectively), 100 ng/mL rbFSH (rbFSH), and 50 mIU/mL rhFSH (rhFSH). There were evaluations of follicle morphology, antrum formation, growth rate, estradiol production, oocyte viability and chromatin configuration, and follicle wall relative abundance of mRNA transcript for MMP-9, TIMP-2, CYP17, CYP19A1, FSHR, Insulin-R, and BAX/BCL-2 ratio. Follicle degeneration rates were similar among all treatment groups at the end of culturing. When there were treatments with pFSH, however, there was a lesser (P < 0.05) percentage of intact follicles and estradiol production, and greater (P < 0.05) extrusion rates. Furthermore, with only pFSH10 (antral follicles) and pFSH100 (preantral and antral follicles) treatments, there was a lesser (P < 0.05) follicle growth. For preantral follicles, when there was addition of pFSH10, pFSH100, and rhFSH there was lesser (P < 0.05) oocyte meiotic resumption compared to control and rbFSH treatments. For antral follicles, when there were treatments with rhFSH and pFSH10 there was greater (P = 0.08 - P < 0.05) oocyte maturation. In conclusion, the source of FSH differentially affected gene expression, as indicated by mRNA abundances, and follicular dynamics of preantral and antral follicles in vitro. Addition of FSH during the in vitro culture improved the developmental outcomes only for antral follicles.
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Affiliation(s)
- Anna Clara A Ferreira
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Naiza A R Sá
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Jesús Cadenas
- Laboratory of Reproductive Biology, University Hospital of Copenhagen, Rigshospitalet, Copenhagen, Denmark
| | - Hudson H V Correia
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Denise D Guerreiro
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Benner G Alves
- Postgraduate Program in Animal Bioscience, Federal University of Goiás, Jataí, GO, Brazil
| | - Laritza F Lima
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Juliana J H Celestino
- Institute of Health Sciences, University of International Integration of Afro-Brazilian Lusophony, Acarape, CE, Brazil
| | - Ana Paula P R Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Eduardo L Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, United States
| | - Jose R Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil.
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7
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Ehrentraut S, Sauss K, Neumeister R, Luley L, Oettel A, Fettke F, Costa SD, Langwisch S, Zenclussen AC, Schumacher A. Human Miscarriage Is Associated With Dysregulations in Peripheral Blood-Derived Myeloid Dendritic Cell Subsets. Front Immunol 2019; 10:2440. [PMID: 31681319 PMCID: PMC6803452 DOI: 10.3389/fimmu.2019.02440] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 09/30/2019] [Indexed: 12/22/2022] Open
Abstract
Dendritic cells (DC) are critically involved in decisions related to the acceptance or rejection of the foreign fetal antigens by the maternal immune system. However, particularly for human peripheral blood DCs (PBDC), available literature is rather inconsistent and the factors regulating these cells are ill-defined. Here, we investigated the phenotype and functionality of different human PBDC subsets during normal and pathologic pregnancies and studied an involvement of human chorionic gonadotropin (hCG) in PBDC regulation. Peripheral blood samples were obtained from normal pregnant women in all three trimesters, from first trimester miscarriage patients and from healthy non-pregnant women. Samples were analyzed for plasma hCG levels, for regulatory T (Treg) cell numbers, for frequencies of total and mature plasmacytoid (PDC) and myeloid (MDC1 and MDC2) PBDC subsets and for their cytokine secretion. In vitro assays, culturing PDC, MDC1 or MDC2 in the presence of two trophoblast cell lines, placenta explant supernatants or two hCG preparations were performed. The Treg-inducing capability of hCG- or non-hCG-treated stimulated MDC1 was assessed. Total and mature MDC1 and MDC2 frequencies increased during the first and second trimester of normal pregnancy, respectively. Miscarriage was associated with a reduced MDC1 and an increased MDC2 activation profile. PDC were not altered neither during normal pregnancy progression nor during miscarriage. In vitro, the culture of isolated PBDC subsets in the presence of placenta-derived factors impaired the maturation of MDC1 and differentially affected PDC maturation. An inhibitory effect on MDC1 and PDC maturation was also proven for the urine-derived hCG preparation. Finally, we observed a Treg cell elevation during early normal pregnancy that was not present in miscarriages. Stimulated MDC1 induced Treg cells in vitro, however, hCG was not involved in this process. Our findings suggest that during normal pregnancy PBDC subsets are differentially regulated dependent on gestational age. Miscarriage seems to be associated with dysregulations in the myeloid PBDC subsets and with disturbances in Treg cell frequencies. Moreover, our results propose an interdependency between MDC1 and Treg cells during early pregnancy. hCG, although shown to impair MDC1 maturation, does not seem to be a key regulator of PBDC alterations during pregnancy.
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Affiliation(s)
- Stefanie Ehrentraut
- Health Campus Immunology, Infectiology and Inflammation (GC-I3), Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
| | - Karoline Sauss
- Health Campus Immunology, Infectiology and Inflammation (GC-I3), Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
| | | | - Lydia Luley
- Health Campus Immunology, Infectiology and Inflammation (GC-I3), Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany.,University Women's Clinic, Otto-von-Guericke University, Magdeburg, Germany
| | - Anika Oettel
- University Women's Clinic, Otto-von-Guericke University, Magdeburg, Germany
| | - Franziska Fettke
- Health Campus Immunology, Infectiology and Inflammation (GC-I3), Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany.,University Women's Clinic, Otto-von-Guericke University, Magdeburg, Germany
| | - Serban-Dan Costa
- University Women's Clinic, Otto-von-Guericke University, Magdeburg, Germany
| | - Stefanie Langwisch
- Health Campus Immunology, Infectiology and Inflammation (GC-I3), Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
| | - Ana Claudia Zenclussen
- Health Campus Immunology, Infectiology and Inflammation (GC-I3), Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
| | - Anne Schumacher
- Health Campus Immunology, Infectiology and Inflammation (GC-I3), Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
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8
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Kim YY, Kim WO, Liu HC, Rosenwaks Z, Kim JW, Ku SY. Effects of paclitaxel and cisplatin on in vitro ovarian follicle development. Arch Med Sci 2019; 15:1510-1519. [PMID: 31749880 PMCID: PMC6855155 DOI: 10.5114/aoms.2019.81730] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 06/08/2017] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION Despite its importance in pre-chemotherapy counselling, specific reproductive toxicological information about cisplatin and paclitaxel is very rare. This study aimed to investigate the concentrations at which cisplatin and paclitaxel, alone or combined, affect the in vitro development of ovarian follicles. Their differential effects on the oocytes and surrounding granulosa cells was also evaluated. MATERIAL AND METHODS Ovarian follicles were cultured in vitro using gonadotropins and treated with 10-8-10-10 M of cisplatin, paclitaxel, or both. At day 13, granulosa cells and oocytes were retrieved and used for imaging and functional analyses. RESULTS Follicular survival and growth was significantly suppressed in all treatment groups at 10-9 M or higher concentrations, and additive effects were observed in the combination group (p < 0.01). Oocyte-specific genes such as growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15) were more suppressed in the paclitaxel group than in the cisplatin group. Granulosa cell-specific gene suppression and its electron microscopic alteration were more prominent in the cisplatin group than in the paclitaxel group. X-linked inhibitor of apoptosis protein (XIAP) expression of granulosa cells was also further down-regulated in the cisplatin group. CONCLUSIONS These data provide an insight into the critical concentrations regarding in vitro follicular development and the differential effects of chemotherapeutic effects on oocytes and granulosa cells. Further studies are necessary to develop more efficient pre-chemotherapeutic fertility-sparing medical treatment that can evade oocyte-specific damage.
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Affiliation(s)
- Yoon Young Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, South Korea
| | - Woo Oh Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, South Korea
| | - Hung Ching Liu
- Department of Obstetrics and Gynecology, Cornell Weill Medical College, New York, USA
| | - Zev Rosenwaks
- Department of Obstetrics and Gynecology, Cornell Weill Medical College, New York, USA
| | - Jae Won Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, South Korea
| | - Seung-Yup Ku
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, South Korea
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9
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Kim YY, Kim YJ, Kim H, Kang BC, Ku SY, Suh CS. Modulatory Effects of Single and Complex Vitamins on the In Vitro Growth of Murine Ovarian Follicles. Tissue Eng Regen Med 2019; 16:275-283. [PMID: 31205856 PMCID: PMC6542936 DOI: 10.1007/s13770-019-00188-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/02/2019] [Accepted: 03/04/2019] [Indexed: 02/06/2023] Open
Abstract
Background Vitamin is a well-known co-factor for many metabolic processes and its roles in fertility and follicular growth have been studied. Vitamin supplementation is frequently achieved by daily ingestion in the form of a complex capsule. However, the role of single and complex vitamins in in vitro maturation of murine follicles is not fully elucidated. Methods In this study, we evaluated the effects of two forms of vitamins. Pure L-ascorbic acid, and multi-vitamin (vitamin C + vitamin B complex) was treated at two different concentrations (50 and 100 µg/ml), to pre-puberty murine follicles during in vitro maturation. To determine the specific stage of growth that is affected by treatment with vitamins, the vitamins were treated from day 0, 4, 9, and 13. Growth of each follicle was assessed by measuring diameters of whole expanded area and of the granulosa cells. Expression of follicular and oocyte growth-related genes and the effect of vitamin on the viability of follicles was assessed using senescence associated β-galactosidase staining. Results Treatment with vitamins promoted the in vitro growth of murine follicles and the upregulated the expression of granulosa cell- and oocyte-specific genes such as BMP15, Fsh receptor, and GDF9. The proliferation of the granulosa cells was enhanced by the treatment of vitamin. Fifty µg/ml concentration vitamin showed greater effects compared to higher concentration. The viability of in vitro grown follicles was also significantly improved in vitamin-treated follicles. The effects of single L-ascorbic acid and complex vitamin were not significantly different to those of day 4 and day 9 follicles. Vitamins promoted murine follicle development in vitro with different effects on specific growth stage. Conclusion Supplementation of vitamins during in vitro maturation of murine follicles is an efficient strategy for in vitro expansion of follicular cells. These results could be customized to the sophisticated culture of follicles retrieved from aged or cancer-survived female that contain smaller number of follicles with reduced potential to develop into mature follicles.
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Affiliation(s)
- Yoon Young Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-Gu, Seoul, 03080 Republic of Korea
| | - Yong Jin Kim
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, 148 Gurodong-ro, Guro-gu, Seoul, 08308 Republic of Korea
| | - Hoon Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-Gu, Seoul, 03080 Republic of Korea
| | - Byeong Cheol Kang
- Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-Gu, Seoul, 03080 Republic of Korea
| | - Seung-Yup Ku
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-Gu, Seoul, 03080 Republic of Korea
| | - Chang Suk Suh
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-Gu, Seoul, 03080 Republic of Korea
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Kim YY, Kang BC, Yun JW, Ahn JH, Kim YJ, Kim H, Rosenwaks Z, Ku SY. Expression of Transcripts in Marmoset Oocytes Retrieved during Follicle Isolation Without Gonadotropin Induction. Int J Mol Sci 2019; 20:ijms20051133. [PMID: 30845640 PMCID: PMC6429203 DOI: 10.3390/ijms20051133] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 02/28/2019] [Accepted: 02/28/2019] [Indexed: 12/13/2022] Open
Abstract
The in vitro maturation of oocytes is frequently used as an assisted reproductive technique (ART), and has been successfully established in humans and rodents. To overcome the limitations of ART, novel procedures for the in vitro maturation of early follicles are emerging. During the follicle isolation procedure, the unintended rupture of each follicle leads to a release of extra oocytes. Such oocytes, which are obtained during follicle isolation from marmosets, can be used for early maturation studies. Marmoset (Callithrix jacchus), which is classified as a new-world monkey, is a novel model that has been employed in reproductive biomedical research, as its reproductive physiology is similar to that of humans in several aspects. The ovaries of female marmosets were collected, and the excess oocytes present during follicle isolation were retrieved without pre-gonadotropin induction. Each oocyte was matured in vitro for 48 h in the presence of various concentrations of human chorionic gonadotropin (hCG) and epidermal growth factor (EGF), and the maturity of oocytes and optimal maturation conditions were evaluated. Each oocyte was individually reverse-transcribed, and the expression of mRNAs and microRNAs (miRs) were analyzed. Concentrations of hCG significantly affected the maturation rate of oocytes [the number of metaphase II (MII) oocytes]. The expression of BMP15 and ZP1 was highest when the oocytes were matured using 100 IU/L of hCG without pre-treatment with gonadotropins, and that of Cja-mir-27a was highest when cultured with follicle stimulating hormone. These results suggest that these up-regulated miRs affect the maturation of oocytes. Interactions with other protein networks were analyzed, and a strong association of BMP15 and ZP1 with sperm binding receptor (ACR), anti-Müllerian hormone (AMH), and AMH receptor was demonstrated, which is related to the proliferation of granulosa cells. Collectively, on the basis of these results, the authors propose optimal maturation conditions of excess oocytes of marmoset without in vivo gonadotropin treatment, and demonstrated the roles of miRs in early oocyte maturation at the single-cell level in marmosets.
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Affiliation(s)
- Yoon Young Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul National University College of Medicine, 28 Yonkeun-dong, Chongno-gu, Seoul 110-744, Korea.
| | - Byeong-Cheol Kang
- Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea.
| | - Jun Won Yun
- Department of Biotechnology, The Catholic University, Bucheon 14662, Korea.
| | - Jae Hun Ahn
- Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea.
| | - Yong Jin Kim
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, Seoul 08308, Korea.
| | - Hoon Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul National University College of Medicine, 28 Yonkeun-dong, Chongno-gu, Seoul 110-744, Korea.
| | - Zev Rosenwaks
- Center for Reproductive Medicine, Weill Cornell Medical College, New York, NY 10021, USA.
| | - Seung-Yup Ku
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul National University College of Medicine, 28 Yonkeun-dong, Chongno-gu, Seoul 110-744, Korea.
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11
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Kim YJ, Kim YY, Song DY, Lee SH, Park CW, Kim H, Ku SY. Proliferation Profile of Uterine Endometrial Stromal Cells during In Vitro Culture with Gonadotropins: Recombinant versus Urinary Follicle Stimulating Hormone. Tissue Eng Regen Med 2018; 16:131-139. [PMID: 30989040 DOI: 10.1007/s13770-018-0156-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/04/2018] [Accepted: 08/06/2018] [Indexed: 01/08/2023] Open
Abstract
Background Provision of optimal endometrial stromal cells is essential in uterine tissue engineering. Culture of these cells is significantly influenced by gonadotropin hormones. This investigation attempted to define the proliferation profiles of murine uterine endometrial stromal cells during in vitro culture with recombinant follicle stimulating hormone (rFSH), urinary follicle stimulating hormone (uFSH), and human chorionic gonadotropin (hCG). Methods Murine uterine endometrial stromal cells were collected from 8-week-old mice and cultured in vitro up to 72 h, with rFSH, uFSH, or hCG. Cell cycles were analyzed by BrdU assay, and cyclin D1 expression was evaluated according to dose and duration of gonadotropin treatment. Results BrdU assay showed a further inhibitory effect on murine uterine endometrial stromal cell proliferation when cultured with rFSH compared to uFSH, and a similar inhibitory proliferation profile when cultured with hCG at a specific range of concentrations. The expression of cyclin D1 of murine uterine endometrial stromal cells was down-regulated when cultured with rFSH, uFSH, or hCG, compared to control. Conclusions FSH may inhibit the proliferation of murine uterine endometrial stromal cells during in vitro culture. rFSH may have more significant inhibitory effects on the proliferation of endometrial stromal cells than uFSH. Establishing an optimal endocrine milieu is necessary using more advanced combination of female hormones for in vitro culture of this type of cells.
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Affiliation(s)
- Yong Jin Kim
- 1Department of Obstetrics and Gynecology, Korea University Medical Center, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Yoon Young Kim
- 2Department of Obstetrics and Gynecology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080 Republic of Korea
| | - Da Young Song
- 2Department of Obstetrics and Gynecology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080 Republic of Korea
| | - Sang Hoon Lee
- 1Department of Obstetrics and Gynecology, Korea University Medical Center, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Chan Woo Park
- 3Department of Obstetrics and Gynecology, Cheil General Hospital, 17 Seoae ro 1 Gil, Jung-gu, Seoul, 04619 Republic of Korea
| | - Hoon Kim
- 2Department of Obstetrics and Gynecology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080 Republic of Korea
| | - Seung-Yup Ku
- 2Department of Obstetrics and Gynecology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080 Republic of Korea
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12
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Ferreira ACA, Cadenas J, Sá NAR, Correia HHV, Guerreiro DD, Lobo CH, Alves BG, Maside C, Gastal EL, Rodrigues APR, Figueiredo JR. In vitro culture of isolated preantral and antral follicles of goats using human recombinant FSH: Concentration-dependent and stage-specific effect. Anim Reprod Sci 2018; 196:120-129. [PMID: 30049427 DOI: 10.1016/j.anireprosci.2018.07.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 06/28/2018] [Accepted: 07/16/2018] [Indexed: 01/05/2023]
Abstract
The present study aimed to investigate a concentration-response curve of human recombinant FSH (hrFSH) for in vitro culture of isolated preantral and early antral follicles of goats. Isolated follicles were cultured for 18 days using the following treatments: basic culture medium (control); or control medium supplemented with 10, 50, and 100 mIU/mL of hrFSH. At the end of the culture, cumulus-oocyte complexes were recovered and subjected to in vitro maturation. The following endpoints were evaluated: follicle morphology, growth rate and antrum formation, oocyte viability and meiotic stage, and estradiol production, as well as relative expression of FSH receptor (FSHR), and steroidogenic enzyme (3β-HSD, CYP17, and CYP19A1) genes. In antral follicles, the FSH addition at 50 mIU/mL increased follicular diameter and growth rate, percentage of fully developed oocytes, and oocyte diameter (P < 0.05), and tended to increase the percentage of MII oocytes when compared to the control (P = 0.07). With preantral follicles, FSH addition at 100 mIU/mL increased relative abundance of mRNA for CYP19A1 when compared to the control (P < 0.05). At the same FSH concentrations of 100 and 50 mIU/mL, there was a greater relatively abundance of mRNA for 3β-HSD and CYP17 in preantral than in antral follicles (P < 0.05). For preantral and antral follicle comparisons when the same treatments were imposed, there were greater concentrations of estradiol for antral follicles (P < 0.05). In conclusion, hrFSH enhanced in a concentration-dependent manner the in vitro development of caprine antral follicles; however, there was no positive effect in the culture of preantral follicles.
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Affiliation(s)
- Anna Clara A Ferreira
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Jesús Cadenas
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Naiza A R Sá
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Hudson H V Correia
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Denise D Guerreiro
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Carlos H Lobo
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Benner G Alves
- Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Carolina Maside
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Murcia, Murcia, Spain
| | - Eduardo L Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, United States
| | - Ana Paula R Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - José Ricardo Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil.
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Sauss K, Ehrentraut S, Zenclussen AC, Schumacher A. The pregnancy hormone human chorionic gonadotropin differentially regulates plasmacytoid and myeloid blood dendritic cell subsets. Am J Reprod Immunol 2018; 79:e12837. [DOI: 10.1111/aji.12837] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 02/06/2018] [Indexed: 11/27/2022] Open
Affiliation(s)
- Karoline Sauss
- Department of Experimental Obstetrics and Gynecology; Medical Faculty; Otto-von-Guericke University; Magdeburg Germany
| | - Stefanie Ehrentraut
- Department of Experimental Obstetrics and Gynecology; Medical Faculty; Otto-von-Guericke University; Magdeburg Germany
| | - Ana Claudia Zenclussen
- Department of Experimental Obstetrics and Gynecology; Medical Faculty; Otto-von-Guericke University; Magdeburg Germany
| | - Anne Schumacher
- Department of Experimental Obstetrics and Gynecology; Medical Faculty; Otto-von-Guericke University; Magdeburg Germany
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14
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Abstract
SummaryGonadotropins are the key regulators of ovarian follicles development. They are applied in therapeutic practice in assisted reproductive technology clinics. In the present review we discuss the basic gonadotropic hormones – recombinant human follicle-stimulating hormone, its derivatives, luteinizing hormone and gonadotropin serum of pregnant mares, their origin, and application in ovarian follicle systems inin vitroculture systems.
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Kim YY, Tamadon A, Ku SY. Potential Use of Antiapoptotic Proteins and Noncoding RNAs for EfficientIn VitroFollicular Maturation and Ovarian Bioengineering. TISSUE ENGINEERING PART B-REVIEWS 2017; 23:142-158. [DOI: 10.1089/ten.teb.2016.0156] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yoon Young Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, South Korea
| | - Amin Tamadon
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, South Korea
| | - Seung-Yup Ku
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, South Korea
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16
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Kim YY, Yun JW, Kim JM, Park CG, Rosenwaks Z, Liu HC, Kang BC, Ku SY. Gonadotropin ratio affects the in vitro growth of rhesus ovarian preantral follicles. J Investig Med 2016; 64:888-93. [PMID: 26980777 PMCID: PMC4819672 DOI: 10.1136/jim-2015-000001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2016] [Indexed: 11/04/2022]
Abstract
In vitro follicle growth (IVFG) strategy is critical in the fertility preservation of cancer survivors; however, its optimal protocol needs to be developed using primate models since the availability of human samples is limited. Only a few previous studies have reported the successful IVFG of rhesus monkey ovaries using low-dose follicle-stimulating hormone (FSH) (0.3 or 3 ng/mL) and long-term culture (up to 5 weeks) and it is still uncertain in regard to the optimal culture duration and effective dose of treated gonadotropins applicable to the IVFG of rhesus preantral follicles. Recently, we have reported that the FSH to luteinizing hormone (LH) ratio affects the in vitro growth of murine ovarian follicles. We aimed to investigate whether gonadotropin ratios affect the efficiency of rhesus follicular growth in vitro Ovaries were collected from six necropsied rhesus macaques (4-9 years) and preantral follicles were retrieved and cultured for 14 days using 200 mIU/mL FSH. The characteristics of follicular growth were compared between the FSH:LH=1:1 (n=24) and FSH:LH=2:1 (n=24) groups. High concentration gonadotropin treatment shortened the duration required for in vitro maturation of rhesus preantral follicles. The FSH:LH=2:1 group showed a faster follicular growth and enabled the acquisition of mature oocytes, although the expression of growth differentiation factor (GDF)-9 and anti-Müllerian hormone (AMH) did not differ significantly between the two groups. Taken together, high dose gonadotropin treatment can shorten the duration of IVFG and the gonadotropin ratio is important in the IVFG of rhesus monkey ovaries.
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Affiliation(s)
- Yoon Young Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jun-Won Yun
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jong Min Kim
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Chung Gyu Park
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Zev Rosenwaks
- Center for Reproductive Medicine and Infertility, Weill Cornell Medical College, New York, New York, USA
| | - Hung Ching Liu
- Center for Reproductive Medicine and Infertility, Weill Cornell Medical College, New York, New York, USA
| | - Byeong-Cheol Kang
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Seung-Yup Ku
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, Republic of Korea
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17
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Effect of different culture systems and 3, 5, 3'-triiodothyronine/follicle-stimulating hormone on preantral follicle development in mice. PLoS One 2013; 8:e61947. [PMID: 23596531 PMCID: PMC3626649 DOI: 10.1371/journal.pone.0061947] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 03/15/2013] [Indexed: 12/12/2022] Open
Abstract
The mechanical method to isolate preantral follicle has been reported for many years. However, the culture systems in vitro are still unstable. The aim of this study was to analyze the effect of the culture system of mice preantral follicles on the follicular development in vitro. The results showed that the 96-well plate system was the most effective method for mice follicle development in vitro (volume change: 51.71%; survival rate: 89%, at day 4). Follicle-stimulating hormone (FSH) and Thyroid hormone (TH) are important for normal follicular development and dysregulation of hormones are related with impaired follicular development. To determine the effect of hormone on preantral follicular development, we cultured follicle with hormones in the 96-well plate culture system and found that FSH significantly increased preantral follicular growth on day 4. The FSH-induced growth action was markedly enhanced by T₃ although T₃ was ineffective alone. We also demonstrated by QRT-PCR that T₃ significantly enhanced FSH-induced up-regulation of Xiap mRNA level. Meanwhile, Bad, cell death inducer, was markedly down-regulated by the combination of hormones. Moreover, QRT-PCR results were also consistent with protein regulation which detected by Western Blotting analysis. Taken together, the findings of the present study demonstrate that 96-well plate system is an effective method for preantral follicle development in vitro. Moreover, these results provide insights on the role of thyroid hormone in increasing FSH-induced preantral follicular development, which mediated by up-regulating Xiap and down-regulating Bad.
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