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Xie Q, Wu H, Long H, Xiao C, Qiu J, Yu W, Jiang X, Liu J, Zhang S, Lyu Q, Suo L, Kuang Y. Secondary follicles enable efficient germline mtDNA base editing at hard-to-edit site. Mol Ther Nucleic Acids 2024; 35:102170. [PMID: 38560422 PMCID: PMC10979202 DOI: 10.1016/j.omtn.2024.102170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 03/08/2024] [Indexed: 04/04/2024]
Abstract
Efficient germline mtDNA editing is required to construct disease-related animal models and future gene therapy. Recently, the DddA-derived cytosine base editors (DdCBEs) have made mitochondrial genome (mtDNA) precise editing possible. However, there still exist challenges for editing some mtDNA sites in germline via zygote injection, probably due to the suspended mtDNA replication during preimplantation development. Here, we introduce a germline mtDNA base editing strategy: injecting DdCBEs into oocytes of secondary follicles, at which stage mtDNA replicates actively. With this method, we successfully observed efficient G-to-A conversion at a hard-to-edit site and also obtained live animal models. In addition, for those editable sites, this strategy can greatly improve the base editing efficiency up to 3-fold, which is more than that in zygotes. More important, editing in secondary follicles did not increase more the risk of off-target effects than that in zygotes. This strategy provides an option to efficiently manipulate mtDNA sites in germline, especially for hard-to-edit sites.
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Affiliation(s)
- Qin Xie
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Haibo Wu
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Hui Long
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Caiwen Xiao
- Department of Ophthalmology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Jiaxin Qiu
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Weina Yu
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Xueyi Jiang
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Junbo Liu
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Shuo Zhang
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Qifeng Lyu
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Lun Suo
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Yanping Kuang
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
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Martin JH, Bernstein IR, Lyons JM, Brady AR, Mabotuwana NS, Stanger SJ, De Oliveira CS, Damyanova KB, Nixon B, Lord T. EPAS1 expression contributes to maintenance of the primordial follicle pool in the mouse ovary. Sci Rep 2024; 14:8770. [PMID: 38627575 PMCID: PMC11021563 DOI: 10.1038/s41598-024-59382-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 04/10/2024] [Indexed: 04/19/2024] Open
Abstract
Oxygen availability can have profound effects on cell fate decisions and survival, in part by regulating expression of hypoxia-inducible factors (HIFs). In the ovary, HIF expression has been characterised in granulosa cells, however, any requirement in oocytes remains relatively undefined. Here we developed a Hif2a/Epas1 germline-specific knockout mouse line in which females were fertile, however produced 40% fewer pups than controls. No defects in follicle development were detected, and quality of MII oocytes was normal, as per assessments of viability, intracellular reactive oxygen species, and spindle parameters. However, a significant diminishment of the primordial follicle pool was evident in cKO females that was attributed to accelerated follicle loss from postnatal day 6 onwards, potentially via disruption of the autophagy pathway. These data demonstrate the importance of HIF signalling in oocytes, particularly at the primordial follicle stage, and lend to the importance of controlling oxygen tension in the development of in vitro growth and maturation approaches for assisted reproduction.
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Affiliation(s)
- Jacinta H Martin
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia
- Hunter Medical Research Institute, Infertility and Reproduction Program, New Lambton Heights, NSW, 2305, Australia
| | - Ilana R Bernstein
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Jess M Lyons
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ariel R Brady
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Nishani S Mabotuwana
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Simone J Stanger
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Camila Salum De Oliveira
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Katerina B Damyanova
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia
- Hunter Medical Research Institute, Infertility and Reproduction Program, New Lambton Heights, NSW, 2305, Australia
| | - Tessa Lord
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia.
- Hunter Medical Research Institute, Infertility and Reproduction Program, New Lambton Heights, NSW, 2305, Australia.
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Affiliation(s)
- Zachary Nash
- University College London Hospitals, London, UK
- EGA Institute for Women's Health, University College London
| | - Melanie Davies
- University College London Hospitals, London, UK
- EGA Institute for Women's Health, University College London
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4
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Subiran Adrados C, Cadenas J, Polat SL, Tjäder AS, Blanche P, Kristensen SG. Exploring the potential use of platelet rich plasma (PRP) from adult and umbilical cord blood in murine follicle culture. Reprod Biol 2024; 24:100851. [PMID: 38237503 DOI: 10.1016/j.repbio.2023.100851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/01/2023] [Accepted: 12/27/2023] [Indexed: 04/02/2024]
Abstract
Ovarian follicle culture is a powerful tool to study follicular physiology and has potential applications in clinical and commercial settings. Despite remarkable progress, recreating folliculogenesis in vitro remains challenging for many mammalian species. This study investigates the impact of platelet-rich plasma (PRP) derived from adult blood (human platelet lysate, hPL) and umbilical cord blood (Umbilical cord plasma, UCP) on murine pre-antral follicle culture and oocyte maturation. Pre-antral follicles were cultured individually for 10 days with fetal bovine serum (FBS) serving as the control and two PRP sources (hPL and UCP) and their activated forms (Ac-hPL and Ac-UCP). The results suggest that neither hPL nor UCP, regardless of activation status, improved follicle culture outcomes compared to FBS. Interestingly, activation did not significantly impact the main functional outcomes such as maturation rates, survival, and growth. Oestradiol secretion and oocyte diameter, often considered hallmarks of follicle quality, did not show significant differences between matured and non-matured oocytes across the treatment groups. However, gene expression analysis revealed a significant upregulation of Gdf-9 and Bmp-15 mRNA levels in oocytes from the Ac-UCP group, regardless of maturation stage, suggesting that the accumulation of the mRNA could be due to potential challenges in translation in the Ac-UCP group. In conclusion, this study challenges the hypothesis that PRP, as a serum source, could improve follicle culture outcomes compared to FBS, the gold standard in murine follicle culture. Further research is needed to understand the species-specific effects of PRP and explore other potential factors affecting follicle culture and oocyte quality.
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Affiliation(s)
- Cristina Subiran Adrados
- Laboratory of Reproductive Biology, Department of Fertility, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Jesús Cadenas
- Laboratory of Reproductive Biology, Department of Fertility, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
| | - Sofie Lund Polat
- Laboratory of Reproductive Biology, Department of Fertility, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
| | - Anna Sanderhage Tjäder
- Laboratory of Reproductive Biology, Department of Fertility, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
| | - Paul Blanche
- Department of Biostatistics, University of Copenhagen, Øster Farimagsgade 5, Entrance B, 2nd floor, 1014 Copenhagen, Denmark
| | - Stine Gry Kristensen
- Laboratory of Reproductive Biology, Department of Fertility, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
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5
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Frost ER, Gilchrist RB. Making human eggs in a dish: are we close? Trends Biotechnol 2024; 42:168-178. [PMID: 37625913 DOI: 10.1016/j.tibtech.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/05/2023] [Accepted: 07/30/2023] [Indexed: 08/27/2023]
Abstract
In the space of 50 years, we have seen incredible achievements in human reproductive medicine. With these leaps forward, it is no wonder that there is a major interest in women's reproductive health research, including extension of reproductive lifespan. Substantial effort is currently being made to address this challenge, including from the commercial sector. In vitro gametogenesis (IVG) in mice is a spectacular breakthrough and has the potential to offer hope to women with intractable infertility. However, with such lofty goals, some reflection may be called for: mastering all of the techniques required for complete and safe IVG in women is likely to be extraordinarily difficult.
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Affiliation(s)
- Emily R Frost
- Fertility & Research Centre, Discipline of Women's Health, School of Clinical Medicine, University of New South Wales, Sydney, NSW 2052, Australia.
| | - Robert B Gilchrist
- Fertility & Research Centre, Discipline of Women's Health, School of Clinical Medicine, University of New South Wales, Sydney, NSW 2052, Australia.
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6
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Ebrahimi M, Dattena M, Luciano AM, Succu S, Gadau SD, Mara L, Chessa F, Berlinguer F. In vitro culture of sheep early-antral follicles: Milestones, challenges and future perspectives. Theriogenology 2024; 213:114-123. [PMID: 37839290 DOI: 10.1016/j.theriogenology.2023.09.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/05/2023] [Accepted: 09/29/2023] [Indexed: 10/17/2023]
Abstract
Early antral follicles (EAFs) represent the transitional stage between pre-antral and antral follicles, containing oocytes that have completed most of their growth phase. Therefore, they offer an easily exploitable reserve for producing mature oocytes and preserving genetic resources, given their higher abundance compared to antral follicles (AFs) and shorter culture period than other pre-antral follicles (PAFs). Despite these advantages, the culture of EAFs remains challenging, and the success rates of in vitro embryo production (IVEP) from EAF-derived oocytes are still far below the standard achieved with fully grown oocytes in ruminant species. The difficulty is related to developing suitable in vitro culture systems tailored with nutrients, growth factors, and other signaling molecules to support oocyte growth. In this review, we focus on the in vitro development of sheep EAFs to provide an informative reference to current research progress. We also summarize the basic aspect of folliculogenesis in sheep and the main achievements and limitations of the current methods for EAF isolation, in vitro culture systems, and medium supplementation. Finally, we highlight future perspectives and challenges for improving EAF culture outcomes.
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Affiliation(s)
- Mohammadreza Ebrahimi
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, Sassari, Italy; Department of Animal Science, Agricultural Research Agency of Sardinia, 07100, Sassari, Italy.
| | - Maria Dattena
- Department of Animal Science, Agricultural Research Agency of Sardinia, 07100, Sassari, Italy
| | - Alberto Maria Luciano
- Reproductive and Developmental Biology Laboratory, Department of Veterinary Medicine and Animal Sciences, University of Milan, Via dell'Università, 6, 26900, Lodi, Italy
| | - Sara Succu
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, Sassari, Italy
| | - Sergio Domenico Gadau
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, Sassari, Italy
| | - Laura Mara
- Department of Animal Science, Agricultural Research Agency of Sardinia, 07100, Sassari, Italy
| | - Fabrizio Chessa
- Department of Animal Science, Agricultural Research Agency of Sardinia, 07100, Sassari, Italy
| | - Fiammetta Berlinguer
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, Sassari, Italy
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Najafi A, Asadi E, Benson JD. Comparative effects of a calcium chelator (BAPTA-AM) and melatonin on cryopreservation-induced oxidative stress and damage in ovarian tissue. Sci Rep 2023; 13:22911. [PMID: 38129642 PMCID: PMC10739950 DOI: 10.1038/s41598-023-49892-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023] Open
Abstract
Oncology treatments cause infertility, and ovarian tissue cryopreservation and transplantation (OTCT) is the only option for fertility preservation in prepubertal girls with cancer. However, OTCT is associated with massive follicle loss. Here, we aimed to determine the effect of supplementation of slow freezing and vitrification media with BAPTA-AM and melatonin alone and in combination on ovarian tissue viability, reactive oxygen species (ROS) levels, total antioxidant capacity (TAC), and follicular morphology and viability. Our results indicated that BAPTA-AM and melatonin can significantly improve ovarian tissue viability and the TAC/ROS ratio and reduce ROS generation in frozen-thawed ovarian tissues in slow freezing and vitrification procedures. BAPTA-AM was also found to be less effective on TAC compared to melatonin in vitrified ovarian tissue. While supplementation of slow freezing and vitrification media with BAPTA-AM and/or melatonin could increase the percentage of morphologically intact follicles in cryopreserved ovarian tissues, the differences were not significant. In conclusion, supplementation of cryopreservation media with BAPTA-AM or melatonin improved the outcome of ovarian tissue cryopreservation in both vitrification and slow freezing methods. Our data provide some insight into the importance of modulating redox balance and intracellular Ca2+ levels during ovarian tissue cryopreservation to optimize the current cryopreservation methods.
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Affiliation(s)
- Atefeh Najafi
- Department of Biology, University of Saskatchewan, Saskatoon, SK, S7N 5E2, Canada
| | - Ebrahim Asadi
- Department of Biology, University of Saskatchewan, Saskatoon, SK, S7N 5E2, Canada
| | - James D Benson
- Department of Biology, University of Saskatchewan, Saskatoon, SK, S7N 5E2, Canada.
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Barretta M, Cacciottola L, Hossay C, Donnez J, Dolmans MM. Impact of human ovarian tissue manipulation on follicles: evidence of a potential first wave of follicle activation during fertility preservation procedures. J Assist Reprod Genet 2023; 40:2769-2776. [PMID: 37713145 PMCID: PMC10656389 DOI: 10.1007/s10815-023-02930-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 09/04/2023] [Indexed: 09/16/2023] Open
Abstract
PURPOSE The aim of this study was to investigate the impact of processing human ovarian tissue on follicle activation dynamics. METHODS Fresh ovarian tissue was retrieved from 9 women undergoing laparoscopic surgery for benign conditions. Biopsies from each patient were divided into 3 fragments, the first of which was immediately fixed in the operating room (T0) and the second and third just after processing at 25 (T25) and (T90) 90 min. To evaluate follicle activation, markers of the PI3K and Hippo signaling pathways were immunolabeled at each time point, targeting phospho-Akt (p-Akt) by immunohistochemistry and yes-associated protein (YAP) cellular localization in the granulosa cell layer by immunofluorescence. RESULTS Four hundred forty primordial follicles were evaluated for p-Akt and 420 for YAP. Significantly stronger p-Akt expression was observed at T25 (23.01 ± 13.45%; p=0.04) and T90 (38.99 ± 25.21%; p<0.001) than at T0 (2.72 ± 3.35%). A significant nucleus-to-cytoplasm shift in YAP was detected at T25 (1.21 ± 0.25; p=0.015 compared to T0 (0.95 ± 0.09), while T90 (1.10 ± 0.16) values were similar to T25. CONCLUSION Our data prove that ovarian tissue manipulation significantly impacts follicle dynamics by stimulating the PI3K and Hippo signaling pathways involved in primordial follicle activation. Further experimental evidence must nevertheless be gathered to understand and gain control of follicle activation mechanisms in non-physiological conditions (like ovarian tissue manipulation), in order to optimize fertility preservation and restoration strategies.
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Affiliation(s)
- Marta Barretta
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte B1.52.02, 1200, Brussels, Belgium
- Department of Biomedical Science for Health, University of Milan, Milan, Italy
| | - Luciana Cacciottola
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte B1.52.02, 1200, Brussels, Belgium
| | - Camille Hossay
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte B1.52.02, 1200, Brussels, Belgium
| | - Jacques Donnez
- Université Catholique de Louvain, Brussels, Belgium
- Société de Recherche pour l'Infertilité, Brussels, Belgium
| | - Marie-Madeleine Dolmans
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte B1.52.02, 1200, Brussels, Belgium.
- Gynecology Department, Cliniques Universitaires Saint-Luc, Avenue Mounier 52, bte B1.52.02, 1200, Brussels, Belgium.
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He X, Wang W, Du X, Chu M. Association between single-nucleotide polymorphism in PIK3CD gene and litter size in Small Tail Han sheep. Anim Biotechnol 2023; 34:3337-3342. [PMID: 36332162 DOI: 10.1080/10495398.2022.2140059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The p110δ isoform of the PI3K catalytic subunit (encoded by the PIK3CD gene) is a key component of the PI3K pathway for follicle growth in mammalian ovarian granulosa cells. Nevertheless, little is known about the association of its polymorphisms with ovine litter size. In this study, the distribution of different genotypes of two SNPs in the PIK3CD gene was calculated in more than forty sheep breeds, and the associations between SNPs and litter size in Small Tail Han (STH) sheep were also analyzed. Besides, the mRNA expression of the PIK3CD gene was also detected in some reproduction-related tissues. The results showed that the "A" allele frequency was higher in rs412889931 (g.41926327G > A) in a typical polytocous sheep breed (p < 0.01). The association's analysis showed rs412889931 was correlated with ovine fecundity as assessed by three parity litter sizes (p < 0.05). Finally, we found the expression of PIK3CD in the ovary had significant differences in different fecundity sheep breeds, indicating that SNP may regulate the litter size by influencing the PIK3CD gene expression. The present results demonstrated that rs412889931 could be used in the marker-assisted selection of the litter size in sheep breeding.
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Affiliation(s)
- Xiaoyun He
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wei Wang
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaolong Du
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Mingxing Chu
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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Khunmanee S, Yoo J, Lee JR, Lee J, Park H. Thiol-yne click crosslink hyaluronic acid/chitosan hydrogel for three-dimensional in vitro follicle development. Mater Today Bio 2023; 23:100867. [PMID: 38179228 PMCID: PMC10765241 DOI: 10.1016/j.mtbio.2023.100867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 11/09/2023] [Accepted: 11/14/2023] [Indexed: 01/06/2024] Open
Abstract
There is a great deal of potential for in vitro follicle growth to provide an alternative approach to fertility preservation. This strategy reduces the possibility of cancer cells re-exposure after transplantation, and it does not require hormone stimulation. Adopting a three-dimensional (3D) culture method helps preserve the architecture of the follicle and promotes the maturity of oocytes. In order to maintain follicle morphology, enhance the quality of mature oocytes, and facilitate meiotic spindle assembly, the current work aimed to develop the 3D in vitro preantral mouse follicle culture method. Thiolated chitosan-co-thiolated hyaluronic (CSHS) hydrogel was designed to evaluate the effects of biomaterials on ovarian follicle development. Isolated follicles from mouse ovaries were randomly divided into alginate (Alg) as a 3D control, thiolated hyaluronic acid (HASH), and CSHS groups. Single follicle was encapsulated in each hydrogel, and performed for 10 days and subsequently ovulated to retrieve mature oocytes on day 11. CSHS hydrogel promoted follicle survival and oocyte viability with maintained spherical morphology of follicle. Matured oocytes with normal appearance of meiotic spindle and chromosome alignment were higher in the CSHS group compared with those in the Alg and HASH groups. Furthermore, CSHS increased expression level of folliculogenesis genes (TGFβ-1, GDF-9) and endocrine-related genes (LHCGR, and FSHR). With various experimental setups and clinical applications, this platform could be applied as an alternative method to in vitro follicle culture with different experimental designs and clinical applications in the long-term period.
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Affiliation(s)
- Sureerat Khunmanee
- Department of Integrative Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul, 06974, Republic of Korea
| | - Jungyoung Yoo
- Department of Biomedical Laboratory Science, Eulji University, Gyeonggi-do, 13135, Republic of Korea
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, 13620, Republic of Korea
| | - Jung Ryeol Lee
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, 13620, Republic of Korea
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Jaewang Lee
- Department of Biomedical Laboratory Science, Eulji University, Gyeonggi-do, 13135, Republic of Korea
| | - Hansoo Park
- Department of Integrative Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul, 06974, Republic of Korea
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11
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Ruan X. Expert consensus on fertility preservation in hematopoietic stem cell transplantation in girls in China. Gynecol Endocrinol 2023; 39:2146671. [PMID: 36403607 DOI: 10.1080/09513590.2022.2146671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Aims: Preconditioning before hematopoietic stem cell transplantation (HSCT) seriously damages the ovarian function and causes female infertility. This consensus focuses on the fertility preservation(FP) for girls needing HSCT, aim to make doctors in different disciplines aware of the importance, necessity and technique of ovarian protection.Materials and methods: Summarizing relevant literature and organizing multidisciplinary experts, including obstetrics and gynecology, reproductive medicine, oncology, pediatrics and hematology for full discussion.Results: Individuals exposed to HSCT in childhood are at higher risk of loss of fertility. Considering the high risk of premature ovarian insufficiency (POI) after conditioning and negative impact of POI on fertility, physical and mental health, it is absolutely necessary to protect fertility before HSCT conditioning. Ovarian tissue cryopreservation is the main fertility preservation option for these population.Conclusions: Fertility preservation before HSCT conditioning is crucial. Ovarian tissue cryopreservation is often the only option for these population.
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Affiliation(s)
- X Ruan
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University. Beijing Maternal and Child Health Care Hospital, Beijing, China
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12
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Subiran Adrados C, Cadenas J, Zheng M, Lund S, Larsen EC, Tanvig MH, Greve VH, Blanche P, Andersen CY, Kristensen SG. Human platelet lysate improves the growth and survival of cultured human pre-antral follicles. Reprod Biomed Online 2023; 47:103256. [PMID: 37690342 DOI: 10.1016/j.rbmo.2023.06.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/04/2023] [Accepted: 06/19/2023] [Indexed: 09/12/2023]
Abstract
RESEARCH QUESTION How do platelet-rich plasma products like human platelet lysate (HPL) and umbilical cord plasma (UCP) affect the growth and survival of isolated human pre-antral follicles in vitro? DESIGN Human pre-antral follicles (n = 724; mean diameter: 75 µm; range: 46-237 µm) were isolated from ovarian medulla donated by 14 patients undergoing unilateral oophorectomy for ovarian tissue cryopreservation. Follicles were encapsulated in 0.5% alginate and cultured for 8 days in media supplemented with 5% fetal bovine serum (FBS) (n = 171), 2.5% human serum albumin (HSA) (n = 159), 5% HPL (n = 223) or 5% UCP (n = 171). RESULTS The survival probability was significantly higher in the group supplemented with HPL (80%) compared with the other three groups: FBS (54%, P < 0.001); HSA (63%, P = 0.004) and UCP (29%, P < 0.001). Surviving follicles in the UCP group had less defined follicular membranes and decompacted granulosa cell layers. The median growth of surviving follicles was significantly (P < 0.001) larger in the HPL group (73 µm) compared with any of the other three groups: HSA (43 μm); FBS (40 μm) UCP (54 μm). A descriptive analysis of follicular secretion of anti-Müllerian hormone and oestradiol did not reveal any difference between the groups. The detectability of follicular genes was high for AR (100%), AMHR2 (100%) and FSHR (76%), whereas few follicles expressed LHR (20%). CONCLUSION Human platelet lysate significantly improved survival and growth of cultured human pre-antral follicles compared with FBS, HSA and UCP. The use of HPL is a valuable improvement to culture human pre-antral follicles but further studies will have to prove whether the superiority of HPL translates into better quality oocytes.
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Affiliation(s)
- Cristina Subiran Adrados
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Jesús Cadenas
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
| | - Mengxue Zheng
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sofie Lund
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
| | - Elisabeth Clare Larsen
- The Fertility Clinic, University Hospital of Copenhagen, Rigshospitalet, Copenhagen, Denmark
| | - Mette Honnens Tanvig
- The Fertility Clinic, Department of Obstetrics and Gynecology, Odense University Hospital, Odense, Denmark
| | - Vinnie Hornshøj Greve
- Department of Obstetrics and Gynecology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 82, DK-8200, Aarhus N, Denmark
| | - Paul Blanche
- Department of Biostatistics, University of Copenhagen, Øster Farimagsgade 5, Entrance B, 2nd floor, 1014 Copenhagen, Denmark
| | - Claus Yding Andersen
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Stine Gry Kristensen
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark; The Fertility Clinic, University Hospital of Copenhagen, Rigshospitalet, Copenhagen, Denmark
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Cacciottola L, Vitale F, Donnez J, Dolmans MM. Use of mesenchymal stem cells to enhance or restore fertility potential: a systematic review of available experimental strategies. Hum Reprod Open 2023; 2023:hoad040. [PMID: 37954935 PMCID: PMC10637864 DOI: 10.1093/hropen/hoad040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 09/15/2023] [Indexed: 11/14/2023] Open
Abstract
STUDY QUESTION To what extent does regenerative medicine with stem cell therapy help to address infertility issues for future clinical application? SUMMARY ANSWER Regenerative medicine using different stem cell sources is yielding promising results in terms of protecting the ovarian reserve from damage and senescence, and improving fertility potential in various preclinical settings. WHAT IS KNOWN ALREADY Regenerative medicine using stem cell therapy is emerging as a potential strategy to address a number of issues in the field of human reproduction. Indeed, different types of adult and fetal mesenchymal stem cells (MSCs) have been tested with promising results, owing to their ability to differentiate into different tissue lineages, move toward specific injured sites (homing), and generate a secretome with wound-healing, proangiogenic, and antioxidant capacities. STUDY DESIGN SIZE DURATION Guided by the checklist for preferred reporting items for systematic reviews and meta-analyses, we retrieved relevant studies from PubMed, Medline, and Embase databases until June 2023 using the following keywords: 'mesenchymal stem cells' AND 'ovarian follicles' OR 'ovarian tissue culture' OR 'ovarian follicle culture' OR 'cumulus oocyte complex'. Only peer-reviewed published articles written in English were included. PARTICIPANTS/MATERIALS SETTING METHODS The primary outcome for the experimental strategies was evaluation of the ovarian reserve, with a focus on follicle survival, number, and growth. Secondary outcomes involved analyses of other parameters associated with the follicle pool, such as hormones and growth factors, ovarian tissue viability markers including oxidative stress levels, oocyte growth and maturation rates, and of course pregnancy outcomes. MAIN RESULTS AND THE ROLE OF CHANCE Preclinical studies exploring MSCs from different animal origins and tissue sources in specific conditions were selected (n = 112), including: in vitro culture of granulosa cells, ovarian tissue and isolated ovarian follicles; ovarian tissue transplantation; and systemic or intraovarian injection after gonadotoxic or age-related follicle pool decline. Protecting the ovarian reserve from aging and gonadotoxic damage has been widely tested in vitro and in vivo using murine models and is now yielding initial data in the first ever case series of patients with premature ovarian insufficiency. Use of MSCs as feeder cells in ovarian tissue culture was found to improve follicle outcomes and oocyte competence, bringing us one step closer to future clinical application. MSCs also have proved effective at boosting revascularization in the transplantation site when grafting ovarian tissue in experimental animal models. LIMITATIONS REASONS FOR CAUTION While preclinical results look promising in terms of protecting the ovarian reserve in different experimental models (especially those in vitro using various mammal experimental models and in vivo using murine models), there is still a lot of work to do before this approach can be considered safe and successfully implemented in a clinical setting. WIDER IMPLICATIONS OF THE FINDINGS All gathered data on the one hand show that regenerative medicine techniques are quickly gaining ground among innovative techniques being developed for future clinical application in the field of reproductive medicine. After proving MSC effectiveness in preclinical settings, there is still a lot of work to do before MSCs can be safely and effectively used in different clinical applications. STUDY FUNDING/COMPETING INTERESTS This study was supported by grants from the Fonds National de la Recherche Scientifique de Belgique (FNRS-PDR T.0077.14, FNRS-CDR J.0063.20, and grant 5/4/150/5 awarded to Marie-Madeleine Dolmans), Fonds Spéciaux de Recherche, and the Fondation St Luc. None of the authors have any competing interest to disclose. REGISTRATION NUMBER N/A.
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Affiliation(s)
- L Cacciottola
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - F Vitale
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - J Donnez
- Society for Research into Infertility, Brussels, Belgium
- Université Catholique de Louvain, Brussels, Belgium
| | - M M Dolmans
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
- Department of Gynecology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
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Appeltant R, Hermes R, Holtze S, Modina SC, Galli C, Bjarkadottir BD, Adeniran BV, Wei X, Swegen A, Hildebrandt TB, Williams SA. The neonatal southern white rhinoceros ovary contains oogonia in germ cell nests. Commun Biol 2023; 6:1049. [PMID: 37848538 PMCID: PMC10582104 DOI: 10.1038/s42003-023-05256-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 08/18/2023] [Indexed: 10/19/2023] Open
Abstract
The northern white rhinoceros is functionally extinct with only two females left. Establishing methods to culture ovarian tissues, follicles, and oocytes to generate eggs will support conservation efforts using in vitro embryo production. To the best of our knowledge, this is the first description of the structure and molecular signature of any rhinoceros, more specifically, we describe the neonatal and adult southern white rhinoceros (Ceratotherium simum simum) ovary; the closest relation of the northern white rhinoceros. Interestingly, all ovaries contain follicles despite advanced age. Analysis of the neonate reveals a population of cells molecularly characterised as mitotically active, pluripotent with germ cell properties. These results indicate that unusually, the neonatal ovary still contains oogonia in germ cell nests at birth, providing an opportunity for fertility preservation. Therefore, utilising ovaries from stillborn and adult rhinoceros can provide cells for advanced assisted reproductive technologies and investigating the neonatal ovaries of other endangered species is crucial for conservation.
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Affiliation(s)
- Ruth Appeltant
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, Level 3, John Radcliffe Hospital, Oxford, UK
- Gamete Research Centre, Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
| | - Robert Hermes
- Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str 17, D-10315, Berlin, Germany
| | - Susanne Holtze
- Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str 17, D-10315, Berlin, Germany
| | - Silvia Clotilde Modina
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Via dell'Università 6, 26900, Lodi, Italy
| | - Cesare Galli
- Avantea srl, Laboratory of Reproductive Technologies, Via Porcellasco 7/F, 26100, Cremona, Italy
- Fondazione Avantea, 26100, Cremona, Italy
| | - Briet D Bjarkadottir
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, Level 3, John Radcliffe Hospital, Oxford, UK
| | - Babatomisin V Adeniran
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, Level 3, John Radcliffe Hospital, Oxford, UK
| | - Xi Wei
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, Level 3, John Radcliffe Hospital, Oxford, UK
| | - Aleona Swegen
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, Level 3, John Radcliffe Hospital, Oxford, UK
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, 2308, NSW, Australia
| | - Thomas Bernd Hildebrandt
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Via dell'Università 6, 26900, Lodi, Italy
- Freie Universität Berlin, D-14195, Berlin, Germany
| | - Suzannah A Williams
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, Level 3, John Radcliffe Hospital, Oxford, UK.
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Telfer EE, Grosbois J, Odey YL, Rosario R, Anderson RA. Making a good egg: human oocyte health, aging, and in vitro development. Physiol Rev 2023; 103:2623-2677. [PMID: 37171807 PMCID: PMC10625843 DOI: 10.1152/physrev.00032.2022] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 05/03/2023] [Accepted: 05/06/2023] [Indexed: 05/13/2023] Open
Abstract
Mammalian eggs (oocytes) are formed during fetal life and establish associations with somatic cells to form primordial follicles that create a store of germ cells (the primordial pool). The size of this pool is influenced by key events during the formation of germ cells and by factors that influence the subsequent activation of follicle growth. These regulatory pathways must ensure that the reserve of oocytes within primordial follicles in humans lasts for up to 50 years, yet only approximately 0.1% will ever be ovulated with the rest undergoing degeneration. This review outlines the mechanisms and regulatory pathways that govern the processes of oocyte and follicle formation and later growth, within the ovarian stroma, through to ovulation with particular reference to human oocytes/follicles. In addition, the effects of aging on female reproductive capacity through changes in oocyte number and quality are emphasized, with both the cellular mechanisms and clinical implications discussed. Finally, the details of current developments in culture systems that support all stages of follicle growth to generate mature oocytes in vitro and emerging prospects for making new oocytes from stem cells are outlined.
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Affiliation(s)
- Evelyn E Telfer
- Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Johanne Grosbois
- Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Yvonne L Odey
- Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Roseanne Rosario
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Richard A Anderson
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
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16
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Mo L, Ma J, Xiong Y, Xiong X, Lan D, Li J, Yin S. Factors Influencing the Maturation and Developmental Competence of Yak ( Bos grunniens) Oocytes In Vitro. Genes (Basel) 2023; 14:1882. [PMID: 37895231 PMCID: PMC10606142 DOI: 10.3390/genes14101882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/17/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
The yak (Bos grunniens) is a unique breed living on the Qinghai-Tibet Plateau and its surrounding areas, providing locals with a variety of vital means of living and production. However, the yak has poor sexual maturity and low fertility. High-quality mature oocytes are the basis of animal breeding technology. Recently, in vitro culturing of oocytes and embryo engineering technology have been applied to yak breeding. However, compared to those observed in vivo, the maturation rate and developmental capacity of in vitro oocytes are still low, which severely limits the application of in vitro fertilization and embryo production in yaks. This review summarizes the endogenous and exogenous factors affecting the in vitro maturation (IVM) and developmental ability of yak oocytes reported in recent years and provides a theoretical basis for obtaining high-quality oocytes for in vitro fertilization and embryo production in yaks.
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Affiliation(s)
- Luoyu Mo
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China; (L.M.); (J.M.); (Y.X.); (X.X.); (D.L.); (J.L.)
| | - Jun Ma
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China; (L.M.); (J.M.); (Y.X.); (X.X.); (D.L.); (J.L.)
| | - Yan Xiong
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China; (L.M.); (J.M.); (Y.X.); (X.X.); (D.L.); (J.L.)
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Chengdu 610041, China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu 610041, China
| | - Xianrong Xiong
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China; (L.M.); (J.M.); (Y.X.); (X.X.); (D.L.); (J.L.)
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Chengdu 610041, China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu 610041, China
| | - Daoliang Lan
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China; (L.M.); (J.M.); (Y.X.); (X.X.); (D.L.); (J.L.)
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Chengdu 610041, China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu 610041, China
| | - Jian Li
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China; (L.M.); (J.M.); (Y.X.); (X.X.); (D.L.); (J.L.)
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Chengdu 610041, China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu 610041, China
| | - Shi Yin
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China; (L.M.); (J.M.); (Y.X.); (X.X.); (D.L.); (J.L.)
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Chengdu 610041, China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu 610041, China
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Karavani G, Vedder K, Gutman-Ido E, Gruda Sussman R, Goldschmidt N, Mordechai-Daniel T, Ben-Meir A, Imbar T. Prior exposure to chemotherapy does not reduce the in vitro maturation potential of oocytes obtained from ovarian cortex in cancer patients. Hum Reprod 2023; 38:1705-1713. [PMID: 37414543 DOI: 10.1093/humrep/dead142] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 06/20/2023] [Indexed: 07/08/2023] Open
Abstract
STUDY QUESTION Does chemotherapy exposure affect IVM potential of immature oocytes retrieved from the ovarian cortex following ovarian tissue cryopreservation (OTC) for fertility preservation? SUMMARY ANSWER The IVM potential of oocyte retrieved from ovarian cortex following OTC is not affected by prior exposure to chemotherapy but primarily dependent on patient's age, while successful retrieval of immature oocytes from the ovarian tissue is negatively affected by chemotherapy and its timing. WHAT IS KNOWN ALREADY The potential and feasibility of IVM in premenarche patients was previously demonstrated, in smaller studies. The scarce data that exist on the IVM potential of oocytes retrieved during OTC following chemotherapy support the feasibility of this process, however, this was not previously shown in the premenarche cancer patients population or in larger cohorts. STUDY DESIGN, SIZE, DURATION A retrospective cohort study evaluating 229 cancer patients aged 1-39 years with attempted retrieval of oocytes from the ovarian tissue and the medium following OTC in a university affiliated fertility preservation unit between 2002 and 2021. PARTICIPANTS/MATERIALS, SETTING, METHODS A total of 172 chemotherapy naïve and 57 chemotherapy exposed patients aged 1-39 years underwent OTC in university affiliated tertiary infertility and IVF center. OTC and IVM outcomes were compared between the chemotherapy naïve and exposed groups. The main outcome measure was mean IVM rate per patient in the chemotherapy naïve and exposed groups, with subgroup analysis of a 1:1 chemotherapy exposed group matched for age at OTC and type of malignancy. We additionally analyzed premenarche and postmenarche patients' outcomes separately and investigated the effect of time from chemotherapy to IVM, malignancy type and chemotherapy regimen on oocyte number and IVM outcomes in the chemotherapy exposed group. MAIN RESULTS AND THE ROLE OF CHANCE While the number of retrieved oocytes and percentage of patients with at least one oocyte retrieved was higher in the chemotherapy naïve group (8.7 ± 7.9 versus 4.9 ± 5.6 oocytes and 87.2% versus 73.7%, P < 0.001 and P = 0.016, respectively), IVM rate and number of mature oocytes were comparable between the groups (29.0 ± 25.0% versus 28. 9 ± 29.2% and 2.8 ± 3.1 versus 2.2 ± 2.8, P = 0.979 and P = 0.203, respectively). Similar findings were shown in subgroup analyses for premenarche and postmenarche groups. The only parameter found to be independently associated with IVM rate in a multivariable model was menarche status (F = 8.91, P = 0.004). Logistic regression models similarly showed that past chemotherapy exposure is negatively associated with successful retrieval of oocytes while older age and menarche are predictive of successful IVM. An age and the type of malignancy matched (1:1) chemotherapy naïve and exposed groups were created (25 patients in each group). This comparison demonstrated similar IVM rate (35.4 ± 30.1% versus 31.0 ± 25.2%, P = 0.533) and number of matured oocytes (2.7 ± 3.0. versus 3.0 ± 3.9 oocytes, P = 0.772). Type of malignancy and chemotherapy regimen including alkylating agents were not associated with IVM rate. LIMITATIONS, REASONS FOR CAUTION This study's inherited retrospective design and the long study period carries the possible technological advancement and differences. The chemotherapy exposed group was relatively small and included different age groups. We could only evaluate the potential of the oocytes to reach metaphase II in vitro but not their fertilization potential or clinical outcomes. WIDER IMPLICATIONS OF THE FINDINGS IVM is feasible even after chemotherapy broadening the fertility preservation options of cancer patients. The use of IVM for fertility preservation, even after exposure to chemotherapy, should be further studied for optimal postchemotherapy timing safety and for the in vitro matured oocytes potential for fertilization. STUDY FUNDING/COMPETING INTEREST(S) No funding was received for this study by any of the authors. The authors report that no competing interests. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Gilad Karavani
- In-Vitro Fertilization Unit, Hadassah Ein-Kerem Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Obstetrics and Gynecology, Hadassah Ein-Kerem Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Koral Vedder
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Einat Gutman-Ido
- Department of Obstetrics and Gynecology, Hadassah Ein-Kerem Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Raizl Gruda Sussman
- Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, Toronto, Canada
| | - Neta Goldschmidt
- Faculty of Medicine, Department of Hematology, Hadassah Ein-Kerem Medical Center, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Talya Mordechai-Daniel
- In-Vitro Fertilization Unit, Hadassah Ein-Kerem Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Obstetrics and Gynecology, Hadassah Ein-Kerem Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Assaf Ben-Meir
- In-Vitro Fertilization Unit, Hadassah Ein-Kerem Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Obstetrics and Gynecology, Hadassah Ein-Kerem Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Tal Imbar
- In-Vitro Fertilization Unit, Hadassah Ein-Kerem Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Obstetrics and Gynecology, Hadassah Ein-Kerem Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
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Pawłowski P, Ziętara KJ, Michalczyk J, Fryze M, Buchacz A, Zaucha-Prażmo A, Zawitkowska J, Torres A, Samardakiewicz M. Fertility Preservation in Children and Adolescents during Oncological Treatment-A Review of Healthcare System Factors and Attitudes of Patients and Their Caregivers. Cancers (Basel) 2023; 15:4393. [PMID: 37686669 PMCID: PMC10487203 DOI: 10.3390/cancers15174393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023] Open
Abstract
Oncofertility is any therapeutic intervention to safeguard the fertility of cancer patients. Anti-cancer therapies (chemotherapy, radiation therapy, etc.) entail the risk of reproductive disorders through cytotoxic effects on gamete-building cells, especially those not yet fully developed. This literature review analyzes the available data on securing fertility in pediatric and adolescent populations to identify the methods used and describe aspects related to financing, ethics, and the perspective of patients and their parents. Topics related to oncofertility in this age group are relatively niche, with few peer-reviewed articles available and published studies mostly on adults. Compared to pubertal individuals, a limited number of fertility preservation methods are used for prepubertal patients. Funding for the procedures described varies from country to country, but only a few governments choose to reimburse them. Oncofertility of pediatric and adolescent patients raises many controversies related to the decision, parents' beliefs, having a partner, ethics, as well as the knowledge and experience of healthcare professionals. As the fertility of young cancer patients is at risk, healthcare professionals should make every effort to provide them with an opportunity to fulfill their future reproductive plans and to have a family and offspring. Systemic solutions should form the basis for the development of oncofertility in pediatric and adolescent populations.
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Affiliation(s)
- Piotr Pawłowski
- Student Scientific Association at the Department of Psychology, Faculty of Medicine, Medical University of Lublin, 20-093 Lublin, Poland; (P.P.); (J.M.)
| | - Karolina Joanna Ziętara
- Student Scientific Association at the Department of Psychology, Faculty of Medicine, Medical University of Lublin, 20-093 Lublin, Poland; (P.P.); (J.M.)
| | - Justyna Michalczyk
- Student Scientific Association at the Department of Psychology, Faculty of Medicine, Medical University of Lublin, 20-093 Lublin, Poland; (P.P.); (J.M.)
| | - Magdalena Fryze
- Department of Psychology, Psychosocial Aspects of Medicine, Medical University of Lublin, 20-093 Lublin, Poland; (M.F.); (M.S.)
| | - Anna Buchacz
- Youth Cancer Europe, 400372 Cluj-Napoca, Romania;
| | - Agnieszka Zaucha-Prażmo
- Department of Pediatric Hematology, Oncology and Transplantology, Medical University of Lublin, 20-093 Lublin, Poland; (A.Z.-P.); (J.Z.)
| | - Joanna Zawitkowska
- Department of Pediatric Hematology, Oncology and Transplantology, Medical University of Lublin, 20-093 Lublin, Poland; (A.Z.-P.); (J.Z.)
| | - Anna Torres
- Department of Pediatric and Adolescent Gynecology, Medical University of Lublin, 20-093 Lublin, Poland;
| | - Marzena Samardakiewicz
- Department of Psychology, Psychosocial Aspects of Medicine, Medical University of Lublin, 20-093 Lublin, Poland; (M.F.); (M.S.)
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Trapphoff T, Dieterle S. Cryopreservation of Ovarian and Testicular Tissue and the Influence on Epigenetic Pattern. Int J Mol Sci 2023; 24:11061. [PMID: 37446239 DOI: 10.3390/ijms241311061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/29/2023] [Accepted: 07/02/2023] [Indexed: 07/15/2023] Open
Abstract
Ovarian tissue cryopreservation (OTC) or testicular tissue cryopreservation (TTC) are effective and often the only options for fertility preservation in female or male patients due to oncological, medical, or social aspects. While TTC and resumption of spermatogenesis, either in vivo or in vitro, has still be considered an experimental approach in humans, OTC and autotransplantation has been applied increasingly to preserve fertility, with more than 200 live births worldwide. However, the cryopreservation of reproductive cells followed by the resumption of gametogenesis, either in vivo or in vitro, may interfere with sensitive and highly regulated cellular processes. In particular, the epigenetic profile, which includes not just reversible modifications of the DNA itself but also post-translational histone modifications, small non-coding RNAs, gene expression and availability, and storage of related proteins or transcripts, have to be considered in this context. Due to complex reprogramming and maintenance mechanisms of the epigenome in germ cells, growing embryos, and offspring, OTC and TTC are carried out at very critical moments early in the life cycle. Given this background, the safety of OTC and TTC, taking into account the epigenetic profile, has to be clarified. Cryopreservation of mature germ cells (including metaphase II oocytes and mature spermatozoa collected via ejaculation or more invasively after testicular biopsy) or embryos has been used successfully for many years in medically assisted reproduction (MAR). However, tissue freezing followed by in vitro or in vivo gametogenesis has become more attractive in the past, while few human studies have analysed the epigenetic effects, with most data deriving from animal studies. In this review, we highlight the potential influence of the cryopreservation of immature germ cells and subsequent in vivo or in vitro growth and differentiation on the epigenetic profile (including DNA methylation, post-translational histone modifications, and the abundance and availability of relevant transcripts and proteins) in humans and animals.
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Affiliation(s)
| | - Stefan Dieterle
- Dortmund Fertility Centre, 44135 Dortmund, Germany
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Witten/Herdecke University, 44135 Dortmund, Germany
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Vitale F, Cacciottola L, Yu FS, Barretta M, Hossay C, Donnez J, Dolmans MM. Importance of oxygen tension in human ovarian tissue in vitro culture. Hum Reprod 2023:7194693. [PMID: 37308325 DOI: 10.1093/humrep/dead122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 05/23/2023] [Indexed: 06/14/2023] Open
Abstract
STUDY QUESTION Is there any difference between 20% and 5% oxygen (O2) tension in vitro culture (IVC) on the viability and quality of human follicles contained in cultured ovarian cortex? SUMMARY ANSWER An O2 tension of 5% yields higher follicle viability and quality than does 20% O2 tension after 6 days of IVC. WHAT IS KNOWN ALREADY The primordial follicle (PMF) pool resides within the ovarian cortex, where the in vivo O2 tension ranges between 2% and 8%. Some studies suggest that lowering O2 tension to physiological levels may improve in vitro follicle quality rates. STUDY DESIGN, SIZE, DURATION This prospective experimental study included frozen-thawed ovarian cortex from six adult patients (mean age: 28.5 years; age range: 26-31 years) who were undergoing laparoscopic surgery for non-ovarian diseases. Ovarian cortical fragments were cultured for 6 days at (i) 20% O2 with 5% CO2 and (ii) 5% O2 with 5% CO2. Non-cultured fragments served as controls. PARTICIPANTS/MATERIALS, SETTING, METHODS Cortical fragments were used for the following analyses: hematoxylin and eosin staining for follicle count and classification; Ki67 staining to evaluate PMF proliferation; cleaved caspase-3 immunostaining to identify follicle apoptosis; 8-hydroxy-2-deoxyguanosine and gamma-H2AX (γH2AX) immunolabeling to detect oxidative stress damage and DNA double-strand breaks (DSBs) in oocytes and granulosa cells (GCs); and β-galactosidase staining to assess follicle senescence. Droplet digital PCR was also performed to further explore the gene expression of superoxide dismutase 2 (SOD2) and glutathione peroxidase 4 (GPX4) from the antioxidant defense system and cyclin-dependent kinase inhibitors (p21 and p16) as tissue senescence-related genes. MAIN RESULTS AND THE ROLE OF CHANCE Apoptosis (P = 0.002) and follicle senescence (P < 0.001) rates were significantly lower in the 5% O2 group than in the 20% O2 group. Moreover, GCs in follicles in the 20% O2 group exhibited significantly (P < 0.001) higher oxidative stress damage rates than those in the 5% O2 group. DNA DSB damage rates in GCs of follicles were also significantly higher (P = 0.001) in the 20% O2 group than in the 5% O2 group. SOD2 expression was significantly greater in the 5% O2 group compared to the 20% O2 group (P = 0.04) and the non-cultured group (P = 0.002). Expression of p21 was significantly increased in both the 20% O2 (P = 0.03) and 5% O2 (P = 0.008) groups compared to the non-cultured group. Moreover, the 20% O2 group showed significantly greater p16 expression (P = 0.04) than the non-cultured group, while no significant variation was observed between the 5% O2 and no culture groups. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION This study focuses on improving follicle outcomes during the first step of ovarian tissue IVC, where follicles remain in situ within the tissue. The impact of O2 tension in further steps, such as secondary follicle isolation and maturation, was not investigated here. WIDER IMPLICATIONS OF THE FINDINGS Our findings suggest that 5% O2 tension culture is a promising step toward potentially solving the problem of poor follicle viability after IVC. STUDY FUNDING/COMPETING INTEREST(S) This study was supported by grants from the Fonds National de la Recherche Scientifique de Belgique (FNRS-PDR T.0064.22, CDR J.0063.20 and grant 5/4/150/5 awarded to M.M.D.). The authors have nothing to disclose.
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Affiliation(s)
- F Vitale
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - L Cacciottola
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - F S Yu
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - M Barretta
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - C Hossay
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - J Donnez
- Société de Recherche pour l'Infertilité, Brussels, Belgium
- Université Catholique de Louvain, Brussels, Belgium
| | - M M Dolmans
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
- Gynecology Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium
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21
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Reckhow J, Kula H, Babayev S. Fertility preservation options for transgender and nonbinary individuals. Ther Adv Endocrinol Metab 2023; 14:20420188231178371. [PMID: 37323161 PMCID: PMC10265329 DOI: 10.1177/20420188231178371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 05/09/2023] [Indexed: 06/17/2023] Open
Abstract
Transgender and nonbinary individuals are historically underserved by healthcare systems. A crucial area for improvement is fertility preservation counseling and service delivery, as gender-affirming hormone therapy and gender-affirming surgery may negatively affect future fertility. The methods available for fertility preservation depend on the patient's pubertal status and utilization of gender-affirming therapies, and counseling and delivery of these services are complex and require a multidisciplinary approach. Further research is needed to identify pertinent stakeholders in managing the care of these patients, as well as to better understand the optimal frameworks for delivering integrated and comprehensive care to this patient population. Fertility preservation is an active and exciting area of scientific discovery and offers a wealth of opportunities to improve the care of transgender and nonbinary individuals.
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Affiliation(s)
| | - Hakan Kula
- Obstetrics & Gynecology, Dokuz Eylul University, Izmir, Turkey
| | - Samir Babayev
- Obstetrics and Gynecology, Mayo Clinic, Rochester, MN, USA
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22
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Wu GMJ, Chen ACH, Yeung WSB, Lee YL. Current progress on in vitro differentiation of ovarian follicles from pluripotent stem cells. Front Cell Dev Biol 2023; 11:1166351. [PMID: 37325555 PMCID: PMC10267358 DOI: 10.3389/fcell.2023.1166351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/22/2023] [Indexed: 06/17/2023] Open
Abstract
Mammalian female reproduction requires a functional ovary. Competence of the ovary is determined by the quality of its basic unit-ovarian follicles. A normal follicle consists of an oocyte enclosed within ovarian follicular cells. In humans and mice, the ovarian follicles are formed at the foetal and the early neonatal stage respectively, and their renewal at the adult stage is controversial. Extensive research emerges recently to produce ovarian follicles in-vitro from different species. Previous reports demonstrated the differentiation of mouse and human pluripotent stem cells into germline cells, termed primordial germ cell-like cells (PGCLCs). The germ cell-specific gene expressions and epigenetic features including global DNA demethylation and histone modifications of the pluripotent stem cells-derived PGCLCs were extensively characterized. The PGCLCs hold potential for forming ovarian follicles or organoids upon cocultured with ovarian somatic cells. Intriguingly, the oocytes isolated from the organoids could be fertilized in-vitro. Based on the knowledge of in-vivo derived pre-granulosa cells, the generation of these cells from pluripotent stem cells termed foetal ovarian somatic cell-like cells was also reported recently. Despite successful in-vitro folliculogenesis from pluripotent stem cells, the efficiency remains low, mainly due to the lack of information on the interaction between PGCLCs and pre-granulosa cells. The establishment of in-vitro pluripotent stem cell-based models paves the way for understanding the critical signalling pathways and molecules during folliculogenesis. This article aims to review the developmental events during in-vivo follicular development and discuss the current progress of generation of PGCLCs, pre-granulosa and theca cells in-vitro.
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Affiliation(s)
- Genie Min Ju Wu
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, The University of Hong Kong, Hong Kong, China
| | - Andy Chun Hang Chen
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, The University of Hong Kong, Hong Kong, China
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong—Shenzhen Hospital, Shenzhen, China
- Centre for Translational Stem Cell Biology, The Hong Kong Science and Technology Park, Hong Kong, China
| | - William Shu Biu Yeung
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, The University of Hong Kong, Hong Kong, China
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong—Shenzhen Hospital, Shenzhen, China
- Centre for Translational Stem Cell Biology, The Hong Kong Science and Technology Park, Hong Kong, China
| | - Yin Lau Lee
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, The University of Hong Kong, Hong Kong, China
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong—Shenzhen Hospital, Shenzhen, China
- Centre for Translational Stem Cell Biology, The Hong Kong Science and Technology Park, Hong Kong, China
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23
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Calanni-Pileri M, Michaelis M, Langhammer M, Tognetti PR, Weitzel JM. The Imitation of the Ovarian Fatty Acid Profile of Superfertile Dummerstorf Mouse Lines during IVM of Control Line Oocytes Could Influence Their Maturation Rates. Biomedicines 2023; 11:biomedicines11051439. [PMID: 37239110 DOI: 10.3390/biomedicines11051439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Declining human fertility worldwide is an attractive research target for the search for "high fertility" genes and pathways to counteract this problem. To study these genes and pathways for high fertility, the superfertile Dummerstorf mouse lines FL1 and FL2 are two unique model organisms representing an improved fertility phenotype. A direct reason for this remarkable characteristic of increased litter size, which reaches >20 pups/litter in both FLs, is the raised ovulation rate by approximately 100%, representing an impressive record in this field. Dummerstorf high-fertility lines incarnate extraordinary and singular models of high-fertility for other species, mostly farm animals, with the aim of improving production and reducing costs. Our main goal is to describe the genetic and molecular pathways to reach their phenotypical excellence, and to reproduce them using the control population. The large litter size and ovulation rate in Dummerstorf lines are mostly due to an increase in the quality of their oocytes, which receive a different intake of fat and are composed of different types and concentrations of fatty acids. As the follicular microenvironment plays a fundamental role during the oocytes development, in the present manuscript, we tried to improve the in vitro maturation technique by mimicking the fatty acid profile of FLs oocytes during the IVM of control oocytes. Currently, the optimization of the IVM system is fundamental mostly for prepubertal girls and oncological patients whose main source of gametes to restore fertility may be their maturation in vitro. Our data suggest that the specific fatty acid composition of FLs COCs can contribute to their high-fertility phenotype. Indeed, COCs from the control line matured in IVM-medium supplemented with C14:0 (high in FL2 COCs) or with C20:0, C21:0, C22:0, and C23:0 (high in FL1 COCs), but also control oocytes without cumulus, whose concentration in long-chain FAs are "naturally" higher, showing a slightly higher maturation rate. These findings represent an important starting point for the optimization of the IVM system using FA supplementation.
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Affiliation(s)
- Michela Calanni-Pileri
- Institute of Reproductive Biology, Research Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany
| | - Marten Michaelis
- Institute of Reproductive Biology, Research Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany
| | - Martina Langhammer
- Service Group Lab Animal Facility, Institute of Genetics and Biometry, Research Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany
| | - Paolo Rosellini Tognetti
- Institute of Reproductive Biology, Research Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany
- Service Group Lab Animal Facility, Institute of Genetics and Biometry, Research Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany
| | - Joachim M Weitzel
- Institute of Reproductive Biology, Research Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany
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24
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Riva F, Bloise N, Omes C, Ceccarelli G, Fassina L, Nappi RE, Visai L. Human Ovarian Follicular Fluid Mesenchymal Stem Cells Express Osteogenic Markers When Cultured on Bioglass 58S-Coated Titanium Scaffolds. Materials (Basel) 2023; 16:ma16103676. [PMID: 37241304 DOI: 10.3390/ma16103676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/28/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023]
Abstract
Recent studies have reported that stem cells (human follicular fluid mesenchymal stem cells or hFF-MSCs) are present in ovarian follicular fluid (hFF) and that they have a proliferative and differentiative potential which is similar to that of MSCs derived from other adult tissue. These mesenchymal stem cells, isolated from human follicular fluid waste matter discarded after retrieval of oocytes during the IVF process, constitute another, as yet unutilized, source of stem cell materials. There has been little work on the compatibility of these hFF-MSCs with scaffolds useful for bone tissue engineering applications and the aim of this study was to evaluate the osteogenic capacity of hFF-MSCs seeded on bioglass 58S-coated titanium and to provide an assessment of their suitability for bone tissue engineering purposes. Following a chemical and morphological characterization with scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), cell viability, morphology and expression of specific osteogenic markers were examined after 7 and 21 days of culture. The hFF-MSCs seeded on bioglass and cultured with osteogenic factors, when compared with those seeded on tissue culture plate or on uncoated titanium, exhibited enhanced cell viability and osteogenic differentiation, as reflected by increased calcium deposition and increased ALP activity with expression and production of bone-related proteins. Taken together, these results demonstrate that MSCs from human follicular fluid waste materials can be easily cultured in titanium scaffolds coated with bioglass, having osteoinductive properties. This process has significant potential for regenerative medicine applications and indicates that hFF-MSCs may be a valid alternative to hBM-MSC cells in experimental models in bone tissue engineering.
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Affiliation(s)
- Federica Riva
- Histology and Embryology Unit, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy
| | - Nora Bloise
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, 27100 Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, 27100 Pavia, Italy
| | - Claudia Omes
- Center for Reproductive Medicine, Obstetrics and Gynecology Unit 2, Woman and Child Health Department, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
| | - Gabriele Ceccarelli
- Human Anatomy Unit, Department of Public Health, Experimental and Forensic Medicine, Centre for Health Technologies (CHT), University of Pavia, 27100 Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, Centre for Health Technologies (CHT), University of Pavia, 27100 Pavia, Italy
| | - Rossella Elena Nappi
- Center for Reproductive Medicine, Obstetrics and Gynecology Unit 2, Woman and Child Health Department, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Livia Visai
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, 27100 Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, 27100 Pavia, Italy
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Xu X, Yang B, Zhang H, Feng X, Hao H, Du W, Zhu H, Khan A, Khan MZ, Zhang P, Zhao X. Effects of β-Nicotinamide Mononucleotide, Berberine, and Cordycepin on Lipid Droplet Content and Developmental Ability of Vitrified Bovine Oocytes. Antioxidants (Basel) 2023; 12:antiox12050991. [PMID: 37237857 DOI: 10.3390/antiox12050991] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/20/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
Oocyte vitrification is crucial for livestock reproduction, germplasm conservation, and human-assisted reproduction, but the overabundance of lipids is highly detrimental to oocyte development. It is necessary to reduce the lipid droplet content of oocytes before cryopreservation. This study analyzed the impact of β-nicotinamide mononucleotide (NMN), berberine (BER), or cordycepin (COR) on various aspects of bovine oocytes, including lipid droplet content and the expression levels of genes related to lipid synthesis in bovine oocytes, development ability, reactive oxygen species (ROS), apoptosis, and the expression levels of genes associated with endoplasmic reticulum (ER) stress, and mitochondrial function in vitrified bovine oocytes. The results of our study indicated that 1 μM NMN, 2.5 μM BER, and 1 μM COR were effective in reducing the lipid droplet content and suppressing the expression levels of genes involved in lipid synthesis in bovine oocytes. Our findings showed that the vitrified bovine oocytes treated with 1 μM of NMN had a significantly higher survival rate and better development ability compared to the other vitrified groups. Additionally, 1 μM NMN, 2.5 μM BER, and 1 μM COR decreased the levels of ROS and apoptosis, decreased the mRNA expression levels of genes involved in ER stress and mitochondrial fission but increased the mRNA expression levels of genes associated with mitochondrial fusion in the vitrified bovine oocytes. Our study results suggested that 1 μM NMN, 2.5 μM BER, and 1 μM COR effectively decreased the lipid droplet content and enhanced the development ability of vitrified bovine oocytes by lowering ROS levels, reducing ER stress, regulating mitochondrial function, and inhibiting apoptosis. Furthermore, the results showed that 1 μM NMN was more effective than 2.5 μM BER and 1 μM COR.
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Affiliation(s)
- Xi Xu
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Baigao Yang
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Hang Zhang
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Xiaoyi Feng
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Haisheng Hao
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Weihua Du
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Huabin Zhu
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Adnan Khan
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Muhammad Zahoor Khan
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Peipei Zhang
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Xueming Zhao
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
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Antonouli S, Di Nisio V, Messini C, Daponte A, Rajender S, Anifandis G. A comprehensive review and update on human fertility cryopreservation methods and tools. Front Vet Sci 2023; 10:1151254. [PMID: 37143497 PMCID: PMC10151698 DOI: 10.3389/fvets.2023.1151254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 03/29/2023] [Indexed: 05/06/2023] Open
Abstract
The broad conceptualization of fertility preservation and restoration has become already a major concern in the modern western world since a large number of individuals often face it in the everyday life. Driven by different health conditions and/or social reasons, a variety of patients currently rely on routinely and non-routinely applied assisted reproductive technologies, and mostly on the possibility to cryopreserve gametes and/or gonadal tissues for expanding their reproductive lifespan. This review embraces the data present in human-focused literature regarding the up-to-date methodologies and tools contemporarily applied in IVF laboratories' clinical setting of the oocyte, sperm, and embryo cryopreservation and explores the latest news and issues related to the optimization of methods used in ovarian and testicular tissue cryopreservation.
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Affiliation(s)
- Sevastiani Antonouli
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, Ioannina, Greece
| | - Valentina Di Nisio
- Division of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Christina Messini
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece
| | - Alexandros Daponte
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece
| | - Singh Rajender
- Division of Endocrinology, Central Drug Research Institute, Lucknow, India
| | - George Anifandis
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece
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27
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Abedpour N, Shoorei H, Rajaei F. Detrimental effects of vitrification on integrin genes (α9 and β1) and in vitro fertilization in mouse oocytes. Mol Biol Rep 2023; 50:4823-4829. [PMID: 37039996 DOI: 10.1007/s11033-023-08377-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/08/2023] [Indexed: 04/12/2023]
Abstract
OBJECTIVE Integrins are known as key molecules that importantly involve in fertilization. This study aimed to evaluate effects of vitrification on fertilization rate and expression of integrin genes, α9 and β1, on mice oocytes in GV and MІІ stages. MATERIALS AND METHODS From the ovarian tissue and fallopian tube of NMRI mice, germinal vesicle (GV, n = 200) and metaphase II (MII, n = 200) oocytes were obtained. Then, oocytes were distributed into 4 groups including non-vitrified GV, non-vitrified MII, vitrified GV, and vitrified MII. Cryotop method was used for vitrification and oocytes (for 4 weeks) were kept in liquid nitrogen. After that, by using an inverted microscope, the rate of survived oocytes was assessed. Also, in vitro fertilization (IVF) for oocytes, obtained from in vitro maturated MII and mice ovaries (ovulated MII), was done to assess embryos at differenced stages (2-cells, morula, and hatched). Finally, RT-qPCR was performed to investigate the mRNA expression of integrin genes (α9 and β1). RESULTS After vitrification, the rate of survived oocytes, 68.65%for GV and 65.07% % for MII, did not show a remarkable difference related to non-vitrified groups, while the fertilization rate in vitrified groups remarkably decrease compared to non-vitrified groups (p < 0.05). Also, the expression of α9 and β1 genes was significantly altered in vitrified groups when compared to non-vitrified groups (p < 0.05). There was no significant difference in embryo developmental rates for non-vitrified and vitrified groups. CONCLUSION Cryotop method for vitrification caused an alternation in oocyte quality by reducing fertilization rate and integrin gene expression.
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Affiliation(s)
- Neda Abedpour
- Department of Anatomical Sciences, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Hamed Shoorei
- Department of Anatomical Science, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Farzad Rajaei
- Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Disease, Qazvin University of Medical Sciences, Qazvin, Iran.
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28
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Houeis L, Dolmans MM. Summary of the ISFP congress, Brussels, 10-12 November, 2022. J Assist Reprod Genet 2023; 40:433-442. [PMID: 36765026 PMCID: PMC10033808 DOI: 10.1007/s10815-023-02720-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 01/10/2023] [Indexed: 02/12/2023] Open
Abstract
The 7th International Congress of the ISFP was held in Brussels in November 2022. Hundreds of attendees from all over the world had the rare opportunity to hear the most distinguished leaders discuss and debate the latest advances in the field. Participants were also able to attend workshops under the guidance of skilled practitioners. Numerous topics were considered, including a recap on fertility preservation approaches in cancer and benign pathologies and a section on male factor infertility. Other aspects covered were in vitro maturation and poor responders, the impact of chemotherapy on the ovary, and future perspectives. Participants had the chance to listen to a symposium on fertility preservation techniques, and finally, a keynote lecture on fertility preservation in gynecological cancers brought this prominent and highly influential event to a close.
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Affiliation(s)
- Lara Houeis
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Marie-Madeleine Dolmans
- Gynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium.
- Department of Gynecology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.
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El Alaoui-Lasmaili K, Nguyen-Thi PL, Demogeot N, Lighezzolo-Alnot J, Gross MJ, Mansuy L, Chastagner P, Koscinski I. Fertility discussions and concerns in childhood cancer survivors, a systematic review for updated practice. Cancer Med 2023; 12:6023-6039. [PMID: 36224740 PMCID: PMC10028046 DOI: 10.1002/cam4.5339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 11/11/2022] Open
Abstract
PURPOSE To provide ways to improve the clinical practice of fertility preservation (FP) for children, adolescents, and young adults (AYA) with cancer. DESIGN A systematic research of online databases was undertaken in March 2020 following the PRISMA criteria, including Medline and Web of Science. RESULTS Fifty-nine articles were included. Surveys, interviews, and focus groups were used to collect data from patients, parents, and health care providers (HCPs). Four themes worth exploring emerged: (a) what do patients and professionals think of and know about FP? (b) what makes the fertility discussion happen or not? (c) what, retrospectively, led to FP being pursued or not? and (d) how do patients and HCPs feel about fertility issues? CONCLUSION A minority of AYAs preserve their fertility (banking assay for 45% of boys and 23% of girls). Yet fertility concerns have a significant impact on the quality of life of young cancer survivors. Although recommendations and guidelines regarding FP are available internationally, there are no specific guidelines as to how to conduct fertility counseling for children and adolescents. Some barriers are not removable, such as a poor prognosis of an obvious severe disease, time constraints for starting treatment, and cultural and religious beliefs. In response to aspects hindering patients and families to be receptive to any discussion at the time of diagnosis, psychological support could reduce the level of emotional distress and help restore a degree of open-mindedness to open a window for discussion. Moreover, as the lack of knowledge of professionals about fertility is frequently pointed out as a limiting factor for fertility discussion, reinforcing professional training regarding FP could be proposed to promote fertility discussion and eventually referral for FP.
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Affiliation(s)
| | - Phi Linh Nguyen-Thi
- Unité d'évaluation médicale, Unité de Méthodologie, Data management et Statistique - UMDS, CHRU de Nancy
| | - Nadine Demogeot
- Interpsy Laboratory (UR4432), University of Lorraine, Nancy, France
| | | | | | - Ludovic Mansuy
- Department of Pediatric Hematology and Oncology, University Hospital of Nancy, Vandœuvre-lès-Nancy, France
| | - Pascal Chastagner
- Department of Pediatric Hematology and Oncology, University Hospital of Nancy, Vandœuvre-lès-Nancy, France
| | - Isabelle Koscinski
- Laboratory of Biology of Reproduction-CECOS Lorraine, University Hospital of Nancy, Nancy, France
- INSERM U1256, NGERE, Université de Lorraine, Nancy, France
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Zhang T, He M, Zhang J, Tong Y, Chen T, Wang C, Pan W, Xiao Z. Mechanisms of primordial follicle activation and new pregnancy opportunity for premature ovarian failure patients. Front Physiol 2023; 14:1113684. [PMID: 36926197 PMCID: PMC10011087 DOI: 10.3389/fphys.2023.1113684] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/20/2023] [Indexed: 03/08/2023] Open
Abstract
Primordial follicles are the starting point of follicular development and the basic functional unit of female reproduction. Primordial follicles are formed around birth, and most of the primordial follicles then enter a dormant state. Since primordial follicles are limited in number and can't be renewed, dormant primordial follicles cannot be reversed once they enter the growing state. Thus, the orderly occurrence of primordial follicles selective activation directly affects the rate of follicle consumption and thus determines the length of female reproductive lifespan. Studies have found that appropriately inhibiting the activation rate of primordial follicles can effectively slow down the rate of follicle consumption, maintain fertility and delay ovarian aging. Based on the known mechanisms of primordial follicle activation, primordial follicle in vitro activation (IVA) technique has been clinically developed. IVA can help patients with premature ovarian failure, middle-aged infertile women, or infertile women due to gynecological surgery treatment to solve infertility problems. The study of the mechanism of selective activation of primordial follicles can contribute to the development of more efficient and safe IVA techniques. In this paper, recent mechanisms of primordial follicle activation and its clinical application are reviewed.
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Affiliation(s)
- Tuo Zhang
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.,Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China.,Prenatal Diagnosis Center in Guizhou Province, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.,College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China.,Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Department of Pathophysiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China.,Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Meina He
- College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China.,Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jingjing Zhang
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yuntong Tong
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Tengxiang Chen
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China.,College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China.,Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Department of Pathophysiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China.,Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Chao Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Wei Pan
- Prenatal Diagnosis Center in Guizhou Province, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Ziwen Xiao
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
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Silva JV, Cordeiro E, Silva B, Paulino LFM, Barroso PA, Barrozo L, de Lima Neto M. Effects of N-acetylcysteine on growth, viability and reactive oxygen species levels in small antral follicles cultured in vitro. Asian Pac J Reprod 2023. [DOI: 10.4103/2305-0500.365231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Tian C, Shen L, Gong C, Cao Y, Shi Q, Zhao G. Microencapsulation and nanowarming enables vitrification cryopreservation of mouse preantral follicles. Nat Commun 2022; 13:7515. [PMID: 36522314 PMCID: PMC9755531 DOI: 10.1038/s41467-022-34549-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 10/28/2022] [Indexed: 12/23/2022] Open
Abstract
Preantral follicles are often used as models for cryopreservation and in vitro culture due to their easy availability. As a promising approach for mammalian fertility preservation, vitrification of preantral follicles requires high concentrations of highly toxic penetrating cryoprotective agents (up to 6 M). Here, we accomplish low-concentration-penetrating cryoprotective agent (1.5 M) vitrification of mouse preantral follicles encapsulated in hydrogel by nanowarming. We find that compared with conventional water bath warming, the viability of preantral follicles is increased by 33%. Moreover, the cavity formation rate of preantral follicles after in vitro culture is comparable to the control group without vitrification. Furthermore, the percentage of MII oocytes developed from the vitrified follicles, and the birth rate of offspring following in vitro fertilization and embryo transfer are also similar to the control group. Our results provide a step towards nontoxic vitrification by utilizing the synergistic cryoprotection effect of microencapsulation and nanowarming.
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Affiliation(s)
- Conghui Tian
- grid.59053.3a0000000121679639Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, China
| | - Lingxiao Shen
- grid.59053.3a0000000121679639Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, China
| | - Chenjia Gong
- grid.59053.3a0000000121679639Division of Reproduction and Genetics, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Science at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, Biomedical Sciences and Health Laboratory of Anhui Province, CAS center for Excellence in Molecular Cell Science, Collaborative Innovation Center of Genetics and Development, University of Science and Technology of China, Hefei, China
| | - Yunxia Cao
- grid.412679.f0000 0004 1771 3402Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China ,grid.186775.a0000 0000 9490 772XNHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui Provincial Engineering Research Center of Biopreservation and Artificial Organs, Hefei, China
| | - Qinghua Shi
- grid.59053.3a0000000121679639Division of Reproduction and Genetics, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Science at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, Biomedical Sciences and Health Laboratory of Anhui Province, CAS center for Excellence in Molecular Cell Science, Collaborative Innovation Center of Genetics and Development, University of Science and Technology of China, Hefei, China
| | - Gang Zhao
- grid.59053.3a0000000121679639Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, China
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Abstract
The outcome for adolescents and young adults (AYA) with acute lymphoblastic leukemia (ALL) has improved, mostly based on the use of pediatric-inspired intensive protocols. Due to increasing disease resistance and treatment-related toxicity with age, further improvements are now expected from the expanding knowledge of ALL biology, more accurate risk stratification, and the early introduction of targeted small molecules and immunotherapy. In the last decade, the rate of AYA with B-cell precursor ALL with undetermined genetic drivers ("B-other") has shrunk from 40% to fewer than 10%. The high-risk subgroup of Philadelphia-like ALL is the most frequent entity diagnosed in this age range, offering a multitude of potentially actionable targets. The timely and accurate identification of these targets remains challenging, however. Early minimal residual disease (MRD) monitoring has become a standard of care for the risk stratification and identification of patients likely to benefit from an allogeneic hematopoietic stem cell transplantation. Recently approved immunotherapies are moving frontline to eradicate MRD, to improve the outcome of high-risk patients, and, eventually, to reduce treatment burden. Comprehensive care programs dedicated to AYA with cancer aim at improving inclusion in specific clinical trials and at giving access to appropriate psychosocial support, fertility preservation, and survivorship programs.
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Affiliation(s)
- Nicolas Boissel
- Correspondence Nicolas Boissel, Adolescent and Young Adult Hematology Unit, Saint-Louis Hospital, Assistance Publique-Hôpitaux de Paris, Institut de Recherche Saint-Louis, Université Paris Cité, 75010 Paris, France; e-mail:
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Khunmanee S, Park H. Three-Dimensional Culture for In Vitro Folliculogenesis in the Aspect of Methods and Materials. Tissue Eng Part B Rev 2022; 28:1242-1257. [PMID: 35822548 DOI: 10.1089/ten.teb.2021.0229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In vitro ovarian follicle culture is a reproduction technique used to obtain fertilizable oocytes, for overcoming fertility issues due to premature ovarian failure. This requires the establishment of an in vitro culture model that is capable of better simulating the in vivo ovarian growth environment. Two-dimensional (2D) culture systems have been successfully set up in rodent models. However, they are not suitable for larger animal models as the follicles of larger animals cultured in 2D culture systems often lose their shape due to dysfunction in the gap junctions. Three-dimensional (3D) culture systems are more suitable for maintaining follicle architecture, and therefore are proposed for the successful in vitro culturing of follicles in various animal models. The role of different methods, scaffolds, and suspension cultures in supporting follicle development has been studied to provide direction for improving in vitro follicle culture technologies. The three major strategies for in vitro 3D follicle cultures are discussed in this article. First, the in vitro culture systems, such as microfluidics, hanging drop, hydrogels, and 3D-printing, are reviewed. We have focused on the 3D hydrogel system as it uses different materials for supporting follicular growth and oocyte maturation in several animal models and in humans. We have also discussed the criteria used for biomaterial evaluations such as solid concentration, elasticity, and rigidity. In addition, future research directions for advancing in vitro 3D follicle culture system are discussed. Impact statement A new frontier in assisted reproductive technology is in vitro tissue or follicle culture, particularly for fertility preservation. The in vitro three-dimensional (3D) culture technique enhances follicular development and provides mature oocytes, overcoming the limitations of traditional in vitro two-dimensional cultures. Polymer biomaterials have good compatibility and retain the physiological structure of follicles in the 3D culture system. Utilizing hybrid in vitro culture materials by merging matrix, hydrogel, and unique patterned materials may facilitate follicular growth in the future.
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Affiliation(s)
- Sureerat Khunmanee
- Department of Integrative Engineering, Chung-Ang University, Seoul, Korea
| | - Hansoo Park
- Department of Integrative Engineering, Chung-Ang University, Seoul, Korea
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35
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Abedpour N, Javanmard MZ, Karimipour M, Farjah GH. Chlorogenic acid improves functional potential of follicles in mouse whole ovarian tissues in vitro. Mol Biol Rep 2022; 49:10327-10338. [PMID: 36097112 DOI: 10.1007/s11033-022-07793-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 07/12/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Chlorogenic acid (CGA) is one of the well-known polyphenol compounds possessing several important biological and therapeutic functions. In order to optimize a culture system to achieve complete development of follicles, we focused on the effects of CGA supplementation during in vitro culture (IVC) on follicular development, oxidative stress, antioxidant capacity, developmental gene expression, and functional potential in cultured mouse ovarian tissue. METHODS AND RESULTS The collected whole murine ovaries were randomly divided into four groups: (1) non-cultured group (control 1) with 7-day-old mouse ovaries, (2) non-cultured group (control 2) with 14-day-old mouse ovaries, (3) cultured group (experimental 1) with the culture plates containing only the basic culture medium, (4) cultured group (experimental 2) with the culture plates containing basic culture medium + CGA (50, 100 and 200 µmol/L CGA). Afterward, histological evaluation, biochemical analyses, the expression assessment of genes related to follicular development and apoptosis as well as the analysis of 17-β-estradiol were performed. The results showed that supplementation of ovarian tissue with the basic culture media using CGA (100 µmol/l) significantly increased the survival, developmental and functional potential of follicles in whole mouse ovarian tissues after 7 days of culture. Furthermore, CGA (100 µmol/L) attenuated oxidative damage and enhanced the concentration of antioxidant capacity along with developmental gene expression. CONCLUSION It seems that supplementation of ovarian tissue with culture media using CGA could optimize follicular growth and development in the culture system.
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Affiliation(s)
- Neda Abedpour
- Department of Anatomical Sciences, school of Medicine, Urmia University of Medical Sciences, Urmia, Iran.
| | - Masoumeh Zirak Javanmard
- Department of Anatomical Sciences, school of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Mojtaba Karimipour
- Department of Anatomical Sciences, school of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Gholam Hossein Farjah
- Department of Anatomical Sciences, school of Medicine, Urmia University of Medical Sciences, Urmia, Iran
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36
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Curchoe CL, Tarafdar O, Aquilina MC, Seifer DB. SART CORS IVF registry: looking to the past to shape future perspectives. J Assist Reprod Genet 2022; 39:2607-2616. [PMID: 36269502 PMCID: PMC9722991 DOI: 10.1007/s10815-022-02634-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/03/2022] [Indexed: 10/24/2022] Open
Abstract
PURPOSE The SART CORS database is an informative source of IVF clinic-specific linked data that provides cumulative live birth rates from medically assisted reproduction in the United States (US). These data are used to develop best practice guidelines, for research, quality assurance, and post-market surveillance of assisted reproductive technologies. Here, we sought to investigate the key areas of current research focus (higher-order categories), discover gaps or underserved areas of ART research, and examine the potential application and impact of newer ART adjuvants, future data collection, and analysis needs. METHODS We conducted a systematic review (PRISMA guidelines) to quantify unique output metrics of the SART CORS database. Included were SART member reporting clinics: full-length publications from 2004 to 2021 and conference abstracts from 2015 to 2021, the two key timepoints when the SART CORS database underwent transformative shifts in data collection. RESULTS We found 206 abstracts presented from 2015 to 2021, 189 full-length peer-reviewed publications since 2004, with 654 unique authors listed on these publications. A total of 19 publications have been highly impactful, garnering over 100 citations at the time of writing. Several higher-order categories, such as endometriosis and tubal infertility, have few publications. The conversion of conference abstracts to full-length papers ranged from 15 to 35% from 2015 to 2021. CONCLUSIONS A substantial body of literature has been generated by analyzing the SART CORS database. Full-length publications have increased year over year. Some topic areas, such as endometriosis and tubal infertility, may be underrepresented. Conversion of conference abstracts to full-length publications has been low, indicating that more organizational support may be needed to ensure that research is methodologically sound and researchers supported to reach full publication status.
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Affiliation(s)
| | | | | | - David B Seifer
- Gynecology and Reproductive Sciences, Division of Reproductive Endocrinology and Infertility, Department of Obstetrics, Yale University School of Medicine, New Haven, CT, USA
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van der Perk MEM, van der Kooi ALLF, Bos AME, Broer SL, Veening MA, van Leeuwen J, van Santen HM, van Dorp W, van den Heuvel-Eibrink MM. Oncofertility Perspectives for Girls with Cancer. J Pediatr Adolesc Gynecol 2022; 35:523-526. [PMID: 35358705 DOI: 10.1016/j.jpag.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 03/03/2022] [Accepted: 03/18/2022] [Indexed: 11/17/2022]
Abstract
Infertility is a serious early, as well as late, effect of childhood cancer treatment. If addressed in a timely manner at diagnosis, fertility preservation measures can be taken, preferably before the start of cancer treatment. However, pediatric oncologists might remain reluctant to offer counseling on fertility-preservation methods, although infrastructure to freeze ovarian tissue has become available and is currently considered standard care for pre- and postpubertal girls at high risk of gonadal damage. More importantly, risk factors have been identified for cancer treatment-related impairment of gonadal function, and the first successful pregnancies have been reported after autotransplanted ovarian tissue, which has been harvested from children. Additionally, great progress has been made in the field of ex vivo maturation of oocytes in frozen ovarian tissue, which provides opportunities for those at risk of ovarian micrometastasis. Hence, it is time to counsel girls at risk and make every effort to cryopreserve their ovarian tissue, now more than ever before.
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Affiliation(s)
| | | | - Annelies M E Bos
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Reproductive Medicine and Gynecology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Simone L Broer
- Department of Reproductive Medicine and Gynecology, University Medical Center Utrecht, Utrecht, the Netherlands
| | | | - Jeanette van Leeuwen
- Department of Reproductive Medicine and Gynecology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Hanneke M van Santen
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pediatric Endocrinology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Wendy van Dorp
- Department of Obstetrics and Gynecology, IJsselland Ziekenhuis, Rotterdam, the Netherlands
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Kim J, You YJ. Oocyte Quiescence: From Formation to Awakening. Endocrinology 2022; 163:6572508. [PMID: 35452125 DOI: 10.1210/endocr/bqac049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Indexed: 11/19/2022]
Abstract
Decades of work using various model organisms have resulted in an exciting and emerging field of oocyte maturation. High levels of insulin and active mammalian target of rapamycin signals, indicative of a good nutritional environment, and hormones such as gonadotrophin, indicative of the growth of the organism, work together to control oocyte maturation to ensure that reproduction happens at the right timing under the right conditions. In the wild, animals often face serious challenges to maintain oocyte quiescence under long-term unfavorable conditions in the absence of mates or food. Failure to maintain oocyte quiescence will result in activation of oocytes at the wrong time and thus lead to exhaustion of the oocyte pool and sterility of the organism. In this review, we discuss the shared mechanisms in oocyte quiescence and awakening and a conserved role of noradrenergic signals in maintenance of the quiescent oocyte pool under unfavorable conditions in simple model organisms.
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Affiliation(s)
- Jeongho Kim
- Department of Biological Sciences, Inha University, Incheon, South Korea
| | - Young-Jai You
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, USA
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Liu L, Liu B, Li K, Wang C, Xie Y, Luo N, Wang L, Sun Y, Huang W, Cheng Z, Liu S. Identification of Biomarkers for Predicting Ovarian Reserve of Primordial Follicle via Transcriptomic Analysis. Front Genet 2022; 13:879974. [PMID: 35692832 PMCID: PMC9174591 DOI: 10.3389/fgene.2022.879974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 05/04/2022] [Indexed: 01/20/2023] Open
Abstract
Ovarian reserve (OR) is mainly determined by the number of primordial follicles in the ovary and continuously depleted until ovarian senescence. With the development of assisted reproductive technology such as ovarian tissue cryopreservation and autotransplantation, growing demand has arisen for objective assessment of OR at the histological level. However, no specific biomarkers of OR can be used effectively in clinic nowadays. Herein, bulk RNA-seq datasets of the murine ovary with the biological ovarian age (BOA) dynamic changes and single-cell RNA-seq datasets of follicles at different stages of folliculogenesis were obtained from the GEO database to identify gene signature correlated to the primordial follicle pool. The correlations between gene signature expression and OR were also validated in several comparative OR models. The results showed that genes including Lhx8, Nobox, Sohlh1, Tbpl2, Stk31, and Padi6 were highly correlated to the OR of the primordial follicle pool, suggesting that these genes might be used as biomarkers for predicting OR at the histological level.
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Affiliation(s)
- Li Liu
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Biting Liu
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ke Li
- Department of Clinical Laboratory Medicine, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Chunyan Wang
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yan Xie
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ning Luo
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Lian Wang
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Yaoqi Sun
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Wei Huang
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Zhongping Cheng
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Zhongping Cheng, ; Shupeng Liu,
| | - Shupeng Liu
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Zhongping Cheng, ; Shupeng Liu,
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Eijkenboom L, Saedt E, Zietse C, Braat D, Beerendonk C, Peek R. Strategies to safely use cryopreserved ovarian tissue to restore fertility after cancer: A systematic review. Reprod Biomed Online 2022; 45:763-778. [DOI: 10.1016/j.rbmo.2022.05.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 10/18/2022]
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Bergamini A, Luisa FM, Dellino M, Erica S, Loizzi V, Bocciolone L, Rabaiotti E, Cioffi R, Sabetta G, Cormio G, Mangili G. Fertility sparing surgery in sex-cord stromal tumors: oncological and reproductive outcomes. Int J Gynecol Cancer 2022; 32:1063-1070. [DOI: 10.1136/ijgc-2021-003241] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Sex cord stromal tumors are rare neoplasms, frequently diagnosed in young women often as early-stage disease. In patients who desire to preserve fertility, when possible, unilateral salpingo-oophorectomy with peritoneal surgical staging is a safe alternative to radical treatment. In this review, we analyze the available literature on the obstetrical outcomes after fertility-sparing surgery in a total of 255 patients with sex cord stromal tumors. We found that the spontaneous conception rate in granulosa cells tumor is encouraging (88.5%). In particular, juvenile granulosa cell tumors are associated with a more successful pregnancy rate than adult granulosa cells tumors (11/26 (42.3%) in juvenile granulosa cells tumors compared with 28.5% in adult granulosa cell tumors, respectively.) On the other hand, the results of obstetrical outcomes in Sertoli-Leydig cells tumors are less promising (7/36 (19.4%)). Unfortunately, no evidence on this topic is available for sex cord tumor with annular tubules due to the low incidence. Regarding the oncological outcomes of 900 cases of sex cord stromal tumors treated conservatively, data are reassuring with comparable outcomes between patients treated with conservative and radical surgery. Given the limited available data on this rare tumor, further studies are needed to evaluate the safety of conservative approaches and to define the obstetrical outcomes in this patient population.
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van der Perk MEM, Cost NG, Bos AME, Brannigan R, Chowdhury T, Davidoff AM, Daw NC, Dome JS, Ehrlich P, Graf N, Geller J, Kalapurakal J, Kieran K, Malek M, McAleer MF, Mullen E, Pater L, Polanco A, Romao R, Saltzman AF, Walz AL, Woods AD, van den Heuvel-Eibrink MM, Fernandez CV. White paper: Onco-fertility in pediatric patients with Wilms tumor. Int J Cancer 2022; 151:843-858. [PMID: 35342935 PMCID: PMC9541948 DOI: 10.1002/ijc.34006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/11/2022] [Accepted: 02/17/2022] [Indexed: 11/18/2022]
Abstract
The survival of childhood Wilms tumor is currently around 90%, with many survivors reaching reproductive age. Chemotherapy and radiotherapy are established risk factors for gonadal damage and are used in both COG and SIOP Wilms tumor treatment protocols. The risk of infertility in Wilms tumor patients is low but increases with intensification of treatment including the use of alkylating agents, whole abdominal radiation or radiotherapy to the pelvis. Both COG and SIOP protocols aim to limit the use of gonadotoxic treatment, but unfortunately this cannot be avoided in all patients. Infertility is considered one of the most important late effects of childhood cancer treatment by patients and their families. Thus, timely discussion of gonadal damage risk and fertility preservation options is important. Additionally, irrespective of the choice for preservation, consultation with a fertility preservation (FP) team is associated with decreased patient and family regret and better quality of life. Current guidelines recommend early discussion of the impact of therapy on potential fertility. Since most patients with Wilms tumors are prepubertal, potential FP methods for this group are still considered experimental. There are no proven methods for FP for prepubertal males (testicular biopsy for cryopreservation is experimental), and there is just a single option for prepubertal females (ovarian tissue cryopreservation), posing both technical and ethical challenges. Identification of genetic markers of susceptibility to gonadotoxic therapy may help to stratify patient risk of gonadal damage and identify patients most likely to benefit from FP methods.
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Affiliation(s)
| | - Nicholas G Cost
- Department of Surgery, Division of Urology, University of Colorado School of Medicine and the Surgical Oncology Program of the Children's Hospital Colorado, Aurora, CO, USA
| | - Annelies M E Bos
- University Medical Center Utrecht, Reproductive Medicine and Gynaecology, Utrecht, Netherlands
| | - Robert Brannigan
- Department of Urology, Northwestern University, Chicago, Illinois, USA
| | - Tanzina Chowdhury
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Andrew M Davidoff
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, USA
| | - Najat C Daw
- Department of Pediatrics - Patient Care, MD Anderson Cancer Center, Houston, TX, USA
| | - Jeffrey S Dome
- Division of Oncology at Children's National Hospital, Washington, DC, USA
| | - Peter Ehrlich
- University of Michigan, C.S. Mott Children's Hospital Section of Pediatric Surgery, Ann Arbor, MI, USA
| | - Norbert Graf
- Department for Pediatric Oncology and Hematology, Saarland University Medical Center, Homburg, Germany
| | - James Geller
- Division of Pediatric Oncology, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - John Kalapurakal
- Department of Radiation Oncology, Northwestern University, Chicago, Illinois, USA
| | - Kathleen Kieran
- Department of Urology, University of Washington, and Division of Urology, Seattle Children's Hospital, Seattle, USA
| | - Marcus Malek
- Division of Pediatric General and Thoracic Surgery, UPMC Children's Hospital of Pittsburgh, Pittsburgh, USA
| | - Mary F McAleer
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Elizabeth Mullen
- Department of Pediatric Oncology, Children's Hospital Boston/Dana-Farber Cancer Institute, Boston, MA, USA
| | - Luke Pater
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, Ohio, USA
| | - Angela Polanco
- National Cancer Research Institute Children's Group Consumer Representative, London, UK
| | - Rodrigo Romao
- Departments of Surgery and Urology, IWK Health Centre, Dalhousie University, Halifax, Canada
| | | | - Amy L Walz
- Division of Hematology, Oncology, Neuro-Oncology, and Stem Cell Transplant, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, USA
| | - Andrew D Woods
- Children's Cancer Therapy Development Institute, Beaverton, Oregon, USA
| | | | - Conrad V Fernandez
- Department of Pediatric Hematology/Oncology, IWK Health Centre and Dalhousie University, Halifax, Canada
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Abstract
Considerable progress has been made with the development of culture systems for the in vitro growth and maturation (IVGM) of oocytes from the earliest-staged primordial follicles and from the more advanced secondary follicles in rodents, ruminants, nonhuman primates, and humans. Successful oocyte production in vitro depends on the development of a dynamic culture strategy that replicates the follicular microenvironment required for oocyte activation and to support oocyte growth and maturation in vivo while enabling the coordinated and timely acquisition of oocyte developmental competence. Significant heterogeneity exists between the culture protocols used for different stages of follicle development and for different species. To date, the fertile potential of IVGM oocytes derived from primordial follicles has been realized only in mice. Although many technical challenges remain, significant advances have been made, and there is an increasing consensus that complete IVGM will require a dynamic, multiphase culture approach. The production of healthy offspring from in vitro-produced oocytes in a secondary large animal species is a vital next step before IVGM can be tested for therapeutic use in humans.
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Affiliation(s)
- Helen M Picton
- Reproduction and Early Development Research Group, Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, United Kingdom;
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Rodriguez-Wallberg K, Obedin-Maliver J, Taylor B, Van Mello N, Tilleman K, Nahata L. Reproductive health in transgender and gender diverse individuals: A narrative review to guide clinical care and international guidelines. Int J Transgend Health 2022; 24:7-25. [PMID: 36713139 PMCID: PMC9879176 DOI: 10.1080/26895269.2022.2035883] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Background Hormonal treatments and surgical interventions practiced with the aim to affirm gender identity in transgender and gender diverse patients may impact their future reproductive ability, family building, and family planning options. Whereas it is recommended by international guidelines to discuss the potential risks of infertility and to present fertility preservation (FP) options to transgender individuals and their families prior to initiating any of these treatments, many barriers still remain. Further, transgender and gender diverse individuals often experience barriers to accessing contraception, abortion, pre-conception care, and comprehensive perinatal care. Aims In this review we summarize the current literature on reproductive healthcare issues reported in transgender people including fertility issues, fertility preservation (FP), contraception, pregnancy and lactation and perinatal health. Methods A narrative literature search of major databases (Pubmed, Medline, PsycInfo, Google Scholar, Web of Science) was conducted. Given the paucity and heterogeneity of studies, summative review tactics were not available. The literature was critically reviewed by international experts in the field with focus on the impact of gender-affirming medical interventions on future fertility, current FP options and reproductive health issues in transgender people. Results The current literature supports that transgender and gender diverse individuals may wish to have genetically related children in the future, rendering the issue of FP relevant to this patient group. The cryopreservation of mature gametes is an efficacious option for FP for post-pubertal adolescents and adults. It is recommended to discuss these options at time of planning for gender-affirming hormonal therapy (GAHT) or engaging with other gender-affirming procedures that can limit future fertility. Discontinuation of GAHT may allow individuals to undergo FP later, but data are limited and there is the concern of symptoms and consequences of stopping GAHT. For pre-pubertal and early pubertal children, FP options are limited to the cryopreservation of gonadal tissue. At present the tissue can become functional only after re-transplantation, which might be undesirable by transgender individuals in the future. Preconception counseling, prenatal surveillance, perinatal support, contraceptive, and pregnancy termination related healthcare need to be meaningfully adapted for this patient population, and many knowledge gaps remain. Discussion Specialized FP reproductive healthcare for transgender and gender diverse individuals is in early evolution. Research should be conducted to examine effects of medical interventions on fertility, timing of FP, gamete preservation and outcome of the fertility treatments. Strategies to inform and educate transgender and gender diverse patients can lead to optimization of reproductive care and counseling and decision making of FP for this population.
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Affiliation(s)
- Kenny Rodriguez-Wallberg
- Department of Reproductive Medicine, Karolinska University Hospital, Stockholm, Sweden
- Department of Oncology-Pahology, Karolinska Institutet, Stockholm, Sweden
- Laboratory of Translational Fertility Preservation, NKS, Stockholm, Sweden
| | - Juno Obedin-Maliver
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, CA, USA
| | - Bernard Taylor
- Department of Obstetrics and Gynecology, Atrium Health, Charlotte, NC, USA
| | - Norah Van Mello
- Department of Obstetrics and Gynecology and Center of Expertise on Gender Dysphoria, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Kelly Tilleman
- Department for Reproductive Medicine, Ghent University Hospital, Ghent, Belgium
| | - Leena Nahata
- Center for Biobehavioral Health, The Abigail Wexner Research Institute, Columbus, OH, USA
- Division of Pediatric Endocrinology, Nationwide Children’s Hospital, Columbus, OH, USA
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH, USA
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Abstract
The prodigious rise of cancer survival rates enables many cancer survivors to live long lives. Therefore, the side effects of cancer treatments as well as the long-term quality of life after cancer have become more relevant. Ovarian toxicity is a major off-target effect of anticancer agents for childhood and young adult female cancer patients. Both chemotherapy and irradiation have been demonstrated to damage the ovary and increase the risks of premature ovarian failure (POF), early menopause, ovarian endocrine disorders, and sub- or infertility. Oncofertility is an emerging and multidisciplinary research and medical field that focuses on providing cancer patients with fertility preservation options. Oocyte quality and quantity are one of the most important factors to determine women's fertility success; therefore, preserving oocytes is paramount for maintaining the ability of young female cancer patients' reproduction after their recovery. This review summarizes peer-reviewed literature on current oocyte preservation options in oncofertility. We describe in-depth oocyte and embryo cryopreservation, ovarian suppression, ovarian tissue cryopreservation, in vitro maturation, ovarian transposition, and adjuvant therapy. Further, we discuss current guidelines and practices of female fertility preservation that cover preserving oocytes.
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Affiliation(s)
- Maria McClam
- Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Shuo Xiao
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, Piscataway, NJ, USA,Correspondence: 170 Frelinghuysen Rd, Piscataway, NJ 08854, USA. Tel: + 1-848-445-3729; E-mail:
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Baston-Büst DM, Bielfeld AP. Fertility preservation in the pediatric population-experience from a German Cryobank for ovarian tissue. Front Endocrinol (Lausanne) 2022; 13:995172. [PMID: 36440191 PMCID: PMC9687368 DOI: 10.3389/fendo.2022.995172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 10/13/2022] [Indexed: 11/12/2022] Open
Abstract
Counseling children on the possibility of fertility preservation prior to a gonadotoxic treatment supports the decision-making process, taking into account that the patients are in a very vulnerable and mentally exhausting situation following the diagnosis. Referral to specialists can be optimized on-site by routing slips with contact addresses, phone numbers, and mail contacts; available time slots for consultation; possibly offers for cost coverage; and an easy-to-understand information leaflet about the different options available. Some of the options for fertility preservation in the prepubertal population especially are still experimental. The unique possibility of fertility preservation before the onset of the gonadotoxic therapy, which may cause premature ovarian insufficiency or azoospermia in the future, should be highlighted.
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Abstract
Progressive loss of physiological integrity and accumulation of degenerative changes leading to functional impairment and increased susceptibility to diseases are the main features of aging. The ovary, the key organ that maintains female reproductive and endocrine function, enters aging earlier and faster than other organs and has attracted extensive attention from society. Ovarian aging is mainly characterized by the progressive decline in the number and quality of oocytes, the regulatory mechanisms of which have yet to be systematically elucidated. This review discusses the hallmarks of aging to further highlight the main characteristics of ovarian aging and attempt to explore its clinical symptoms and underlying mechanisms. Finally, the intervention strategies related to aging are elaborated, especially the potential role of stem cells and cryopreservation of embryos, oocytes, or ovarian tissue in the delay of ovarian aging.
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Affiliation(s)
| | | | | | - Lingjuan Wang
- *Correspondence: Kezhen Li, ; Jihui Ai, ; Lingjuan Wang,
| | - Jihui Ai
- *Correspondence: Kezhen Li, ; Jihui Ai, ; Lingjuan Wang,
| | - Kezhen Li
- *Correspondence: Kezhen Li, ; Jihui Ai, ; Lingjuan Wang,
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Qin DY, Jiang HH, Yao QY, Yao W, Yuan XQ, Wang Y, Deng TR, Du YY, Ren XL, Guo N, Li YF. Rescue in vitro maturation may increase the pregnancy outcomes among women undergoing intracytoplasmic sperm injection. Front Endocrinol (Lausanne) 2022; 13:1047571. [PMID: 36578963 PMCID: PMC9790966 DOI: 10.3389/fendo.2022.1047571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION To investigate whether rescue in vitro maturation (R-IVM) improves the reproductive outcomes among women undergoing intracytoplasmic sperm injection (ICSI) after one oocyte retrieved cycle. METHODS Between January 2019 and December 2020, 2602 women who underwent ICSI in the Reproductive Medicine Center of Tongji Hospital, Wuhan, China, were included in our retrospective cohort study. There were 2112 women undergoing only ICSI and 490 women with R-IVM followed by ICSI. The intermediate reproductive outcomes and pregnancy outcomes were assessed, including the number of normally fertilized embryos, number of cleaved embryos, number of good-quality embryos, number of day-3 available embryos, number of embryos cultured past day-3, number of blastocysts, number of available blastocysts, biochemical pregnancy, miscarriage, clinical pregnancy and live birth. The perinatal outcomes were also assessed, including preterm birth and birth weight. The abovementioned outcomes were also calculated for in vivo matured and R-IVM oocytes separately in women undergoing ICSI with R-IVM group. RESULTS Compared with the women who underwent only ICSI, those who underwent ICSI with R-IVM had higher numbers of MII oocytes, normally fertilized embryos, cleaved embryos, day-3 available embryos, embryos cultured past day-3, and higher oocyte maturation rate, available embryo rate than women undergoing only ICSI. Additionally, we found that women undergoing ICSI with R-IVM had an increased chance of clinical pregnancy (adjusted OR=1.50, 95% CI: 1.17-1.93) and cumulative live birth (adjusted OR=1.35, 95% CI: 1.07-1.71). After propensity score matching (PSM), the cumulative live birth rate was 60.1% for women undergoing ICSI with R-IVM versus 54.9% for women undergoing only ICSI (OR=1.24, 95% CI: 0.94-1.63). The reproductive outcomes were also significantly different when calculated for in vivo matured and R-IVM oocytes separately in women undergoing ICSI with R-IVM group. All live births from R-IVM embryos were healthy and without malformations or complications. CONCLUSION R-IVM may improve the reproductive outcomes of women undergoing ICSI. It may also provide a reference for the safety of R-IVM. This study maybe support a routine application of R-IVM among patients who intend to undergo ICSI.
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Affiliation(s)
- Dan-Yu Qin
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Hua-Hua Jiang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Qing-Yun Yao
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Wen Yao
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-Qiong Yuan
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao-Ran Deng
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Yao-Yao Du
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin-Ling Ren
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Na Guo
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Na Guo, ; Yu-Feng Li,
| | - Yu-Feng Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Na Guo, ; Yu-Feng Li,
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Del Valle JS, Mancini V, Laverde Garay M, Asseler JD, Fan X, Metzemaekers J, Louwe LA, Pilgram GSK, van der Westerlaken LAJ, van Mello NM, Chuva de Sousa Lopes SM. Dynamic in vitro culture of cryopreserved-thawed human ovarian cortical tissue using a microfluidics platform does not improve early folliculogenesis. Front Endocrinol (Lausanne) 2022; 13:936765. [PMID: 35966050 PMCID: PMC9372461 DOI: 10.3389/fendo.2022.936765] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/05/2022] [Indexed: 11/13/2022] Open
Abstract
Current strategies for fertility preservation include the cryopreservation of embryos, mature oocytes or ovarian cortical tissue for autologous transplantation. However, not all patients that could benefit from fertility preservation can use the currently available technology. In this regard, obtaining functional mature oocytes from ovarian cortical tissue in vitro would represent a major breakthrough in fertility preservation as well as in human medically assisted reproduction. In this study, we have used a microfluidics platform to culture cryopreserved-thawed human cortical tissue for a period of 8 days and evaluated the effect of two different flow rates in follicular activation and growth. The results showed that this dynamic system supported follicular development up to the secondary stage within 8 days, albeit with low efficiency. Surprisingly, the stromal cells in the ovarian cortical tissue were highly sensitive to flow and showed high levels of apoptosis when cultured under high flow rate. Moreover, after 8 days in culture, the stromal compartment showed increase levels of collagen deposition, in particular in static culture. Although microfluidics dynamic platforms have great potential to simulate tissue-level physiology, this system still needs optimization to meet the requirements for an efficient in vitro early follicular growth.
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Affiliation(s)
- Julieta S. Del Valle
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, Netherlands
| | - Vanessa Mancini
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, Netherlands
| | - Maitane Laverde Garay
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, Netherlands
| | - Joyce D. Asseler
- Department of Obstetrics and Gynaecology, Amsterdam University Medical Center (UMC), Amsterdam, Netherlands
| | - Xueying Fan
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, Netherlands
| | - Jeroen Metzemaekers
- Department of Gynaecology, Leiden University Medical Center, Leiden, Netherlands
| | - Leoni A. Louwe
- Department of Gynaecology, Leiden University Medical Center, Leiden, Netherlands
| | | | | | - Norah M. van Mello
- Department of Obstetrics and Gynaecology, Amsterdam University Medical Center (UMC), Amsterdam, Netherlands
| | - Susana M. Chuva de Sousa Lopes
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, Netherlands
- Ghent-Fertility and Stem Cell Team (G-FAST), Department of Reproductive Medicine, Ghent University Hospital, Ghent, Belgium
- *Correspondence: Susana M. Chuva de Sousa Lopes,
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50
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Xu J, Zelinski MB. Oocyte quality following in vitro follicle development†. Biol Reprod 2021; 106:291-315. [PMID: 34962509 PMCID: PMC9004734 DOI: 10.1093/biolre/ioab242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/15/2021] [Accepted: 12/24/2021] [Indexed: 12/30/2022] Open
Abstract
In vitro follicle development (IVFD) is an adequate model to obtain basic knowledge of folliculogenesis and provides a tool for ovarian toxicity screening. IVFD yielding competent oocytes may also offer an option for fertility and species preservation. To promote follicle growth and oocyte maturation in vitro, various culture systems are utilized for IVFD in rodents, domestic animals, wild animals, nonhuman primates, and humans. Follicle culture conditions have been improved by optimizing gonadotropin levels, regulatory factors, nutrient supplements, oxygen concentration, and culture matrices. This review summarizes quality assessment of oocytes generated from in vitro-developed antral follicles from the preantral stage, including oocyte epigenetic and genetic profile, cytoplasmic and nuclear maturation, preimplantation embryonic development following in vitro fertilization, as well as pregnancy and live offspring after embryo transfer. The limitations of oocyte quality evaluation following IVFD and the gaps in our knowledge of IVFD to support proper oocyte development are also discussed. The information may advance our understanding of the requirements for IVFD, with a goal of producing competent oocytes with genetic integrity to sustain embryonic development resulting in healthy offspring.
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Affiliation(s)
- Jing Xu
- Correspondence: Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, 505 NW 185th Avenue, Beaverton, OR 97006, USA. Tel: +1 5033465411; Fax: +1 5033465585; E-mail:
| | - Mary B Zelinski
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA,Department of Obstetrics and Gynecology, School of Medicine, Oregon Health & Science University, Portland, OR, USA
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