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Erden M, Uyanik E, Demeestere I, Oktay KH. Perinatal outcomes of pregnancies following autologous cryopreserved ovarian tissue transplantation: a systematic review with pooled analysis. Am J Obstet Gynecol 2024:S0002-9378(24)00518-0. [PMID: 38621483 DOI: 10.1016/j.ajog.2024.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/29/2024] [Accepted: 04/03/2024] [Indexed: 04/17/2024]
Abstract
OBJECTIVE This study aimed to synthesize the existing evidence on perinatal outcomes after autologous cryopreserved ovarian tissue transplantation, concurrently identifying key factors influencing these outcomes. DATA SOURCES A comprehensive search was performed on MEDLINE, Embase, and Cochrane Library databases to identify relevant studies on the effect of autologous cryopreserved ovarian tissue transplantation on perinatal outcomes from inception to October 22, 2023. Where there was missing information, the authors were contacted for updated data. STUDY ELIGIBILITY CRITERIA Observational studies, such as cohort studies, case series, and case reports that reported a live birth after autologous cryopreserved ovarian tissue transplantation, were considered eligible. Studies lacking data on women's demographic characteristics, autologous cryopreserved ovarian tissue transplantation procedure details, or perinatal outcomes were excluded. In addition, cases involving fresh or nonautologous transplantations and those addressing primary ovarian insufficiency were excluded. METHODS Two reviewers (M.E. and E.U.) independently performed the study selection, data extraction, and risk of bias assessment, and the results were then reviewed together. The PRISMA guidelines were followed, and the protocol was registered on PROSPERO (CRD42023469296). RESULTS This review included 58 studies composed of 122 women with 162 deliveries (154 singletons and 8 twins) after autologous cryopreserved ovarian tissue transplantation, resulting in 170 newborns. Of note, 83.6% of the women had a malignant disease. Moreover, most of these women (51.0%) were exposed to some form of chemotherapy before ovarian tissue cryopreservation. Of the 162 childbirths, 108 (66.7%) were conceived naturally, and 54 (33.3%) were conceived through assisted reproductive techniques. The birthweight of 88.5% of newborns was appropriate for gestational age, whereas 8.3% and 3.1% were small for gestational age and large for gestational age, respectively. The preterm birth rate was 9.4%, with the remaining being term deliveries. Hypertensive disorders of pregnancy were noted in 18.9% of women, including pregnancy-induced hypertension in 7.6%, preeclampsia in 9.4%, and hemolysis, elevated liver enzymes, and low platelet count in 1.9%. The incidences of gestational diabetes mellitus and preterm premature rupture of membranes were 3.8% for each condition. Neonatal anomalies were reported in 3 transplant recipients with 4 newborns: arthrogryposis, congenital cataract, and diaphragmatic hernia in a twin. Finally, among the recipients' characteristics, not receiving chemotherapy before ovarian tissue cryopreservation (odds ratio, 0.23; 95% confidence interval, 0.07-0.72; P=.012) and natural conception (odds ratio, 0.29; 95% confidence interval, 0.09-0.92; P=.035) were associated with a lower perinatal complication rate. CONCLUSION On the basis of low certainty evidence from observational studies, perinatal complication rates did not increase after autologous cryopreserved ovarian tissue transplantation compared with the general pregnant population, except for preeclampsia. This could be due to chemotherapy exposure, underlying medical conditions, and the common use of assisted reproductive techniques. Further larger studies are needed to explore the causes of increased preeclampsia incidence in autologous cryopreserved ovarian tissue transplantation pregnancies.
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Affiliation(s)
- Murat Erden
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT
| | - Esra Uyanik
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT
| | - Isabelle Demeestere
- HUB-Erasme Fertility Clinic, Research Laboratory on Human Reproduction, Université Libre de Bruxelles, Brussels, Belgium
| | - Kutluk H Oktay
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT; Innovation Fertility Preservation and IVF, New York, NY.
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Brandão FA, de Brito DC, Pereira LM, Alves KA, Ñaupas LV, de Souza SS, de S Cunha DM, de S Filho RP, Alves BG, Rodrigues AP, Teixeira DI. Effects of different subcutaneous sites on heterotopic autotransplantation of canine ovarian tissue. Vet Res Commun 2023; 47:1893-1905. [PMID: 37198523 DOI: 10.1007/s11259-023-10139-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/10/2023] [Indexed: 05/19/2023]
Abstract
Ovarian tissue transplantation makes it possible to restore fertility; however, the success of this technique depends on the transplant region used. Therefore, this study aimed to evaluate the effect of two subcutaneous regions on canine ovarian transplantation, pinna (Pi) and neck (Ne), for 7 and 15 days. Ovaries collected by ovariosalpingohysterectomy were fragmented using a punch device. Fresh fragments were fixed, and the others were immediately grafted onto the animal itself in the Pi and Ne regions for 7 and 15 days. Recovered fragments were evaluated for histology (morphology, development and stromal density), picrosirius (collagen fibers), and immunohistochemistry (fibrosis and cell proliferation). The results showed that follicular normality rates were lower in Pi-7 (78%) vs. control (90%) and Pi-15 (86%), similar in Ne-7 (92%) and superior in Ne-15 (97%) compared to the control, with the effect of the region Ne (94%) superior (P < 0.05) to Pi (82%). Stromal density reduced in both regions vs. control but was similar within 15 days. Fragments from both regions showed higher fibronectin labeling and deposition of type I and lower type III collagen fibers (P < 0.05) vs. control. Proliferation rates in Ne-7 were higher (P < 0.05) than in control, and Pi-15 was higher (P < 0.05) than Ne-15. In conclusion, the pinna may be a region with greater potential than the neck after a 15-day autotransplantation of canine ovarian tissue.
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Affiliation(s)
- Fabiana As Brandão
- Diagnostic Imaging Laboratory Applied to Reproduction, Faculty of Veterinary Medicine, State University of Ceará, Av. Dr. Silas Munguba, Campus Itaperi. Fortaleza-CE- 60, Fortaleza, CE, 1700, 714-903, Brazil
| | - Danielle Cc de Brito
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, CE, Brazil
| | - Leda Mc Pereira
- Diagnostic Imaging Laboratory Applied to Reproduction, Faculty of Veterinary Medicine, State University of Ceará, Av. Dr. Silas Munguba, Campus Itaperi. Fortaleza-CE- 60, Fortaleza, CE, 1700, 714-903, Brazil
| | | | - Lucy Vs Ñaupas
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, CE, Brazil
| | - Samara S de Souza
- Diagnostic Imaging Laboratory Applied to Reproduction, Faculty of Veterinary Medicine, State University of Ceará, Av. Dr. Silas Munguba, Campus Itaperi. Fortaleza-CE- 60, Fortaleza, CE, 1700, 714-903, Brazil
| | - Duanny M de S Cunha
- Diagnostic Imaging Laboratory Applied to Reproduction, Faculty of Veterinary Medicine, State University of Ceará, Av. Dr. Silas Munguba, Campus Itaperi. Fortaleza-CE- 60, Fortaleza, CE, 1700, 714-903, Brazil
| | - Reginaldo P de S Filho
- Cardoso Veterinary Hospital, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, CE, Brazil
| | | | - Ana Pr Rodrigues
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, CE, Brazil
| | - Dárcio Ia Teixeira
- Diagnostic Imaging Laboratory Applied to Reproduction, Faculty of Veterinary Medicine, State University of Ceará, Av. Dr. Silas Munguba, Campus Itaperi. Fortaleza-CE- 60, Fortaleza, CE, 1700, 714-903, Brazil.
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3
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Rangi S, Hur C, Richards E, Falcone T. Fertility Preservation in Women with Endometriosis. J Clin Med 2023; 12:4331. [PMID: 37445365 DOI: 10.3390/jcm12134331] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/20/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023] Open
Abstract
Several mechanisms have been implicated in the pathogenesis of endometriosis-related infertility. For patients considering surgery, the risk of iatrogenic injury is among the most important factors in the context of fertility preservation, along with age and individual reproductive goals. In the case of endometrioma excision, evidence overwhelmingly demonstrates the negative impact of surgery on ovarian reserve, with significant reductions in antimullerian hormone (up to 30% in unilateral versus up to 44% in bilateral endometriomas). The surgical endometriosis patient should be thoroughly counseled regarding fertility preservation and discussion should include tissue, embryo, and oocyte cryopreservation options. For the latter, data support cryopreservation of 10-15 oocytes in women ≤35 years and over 20 for those >35 years for a realistic chance to achieve one or more live births. When performing surgical interventions for endometriosis, reproductive surgeons should employ fertility-conserving surgical methods to reduce the likelihood of postoperative iatrogenic diminished ovarian reserve.
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Affiliation(s)
- Sabrina Rangi
- Cleveland Clinic Department of Obstetrics and Gynecology, Women's Health Institute, 9500 Euclid Ave, Cleveland, OH 44195, USA
| | - Christine Hur
- Cleveland Clinic Department of Obstetrics and Gynecology, Women's Health Institute, 9500 Euclid Ave, Cleveland, OH 44195, USA
| | - Elliott Richards
- Cleveland Clinic Department of Obstetrics and Gynecology, Women's Health Institute, 9500 Euclid Ave, Cleveland, OH 44195, USA
| | - Tommaso Falcone
- Cleveland Clinic Department of Obstetrics and Gynecology, Women's Health Institute, 9500 Euclid Ave, Cleveland, OH 44195, USA
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Ruan X, Du J, Lu D, Duan W, Jin F, Kong W, Wu Y, Dai Y, Yan S, Yin C, Li Y, Cheng J, Jia C, Liu X, Wu Q, Gu M, Ju R, Xu X, Yang Y, Jin J, Korell M, Montag M, Liebenthron J, Mueck AO. First live birth in China after cryopreserved ovarian tissue transplantation to prevent premature ovarian insufficiency. Climacteric 2022; 25:421-424. [PMID: 35504301 DOI: 10.1080/13697137.2022.2064215] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE This article reports the first live birth after cryopreserved ovarian tissue transplantation to prevent premature ovarian insufficiency in China. METHODS A patient with myelodysplastic syndrome received ovarian tissue cryopreservation before hematopoietic stem cell transplantation, and six ovarian cortex strips were thawed and transplanted into her peritoneal pocket 2 years later. RESULTS Pregnancy occurred spontaneously 27 months after grafting, and a healthy girl was born at 38 weeks gestation. Until now, the child has developed normally without any major diseases. CONCLUSIONS We report the first live birth resulting from ovarian tissue cryopreservation and transplantation in China.
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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
| | - J Du
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - D Lu
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - W Duan
- Department of Gynecological Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - F Jin
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - W Kong
- Department of Gynecological Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Y Wu
- Department of Gynecological Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Y Dai
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - S Yan
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - C Yin
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Y Li
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - J Cheng
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - C Jia
- Department of Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - X Liu
- Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Q Wu
- Department of Ultrasound, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - M Gu
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - R Ju
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - X Xu
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Y Yang
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - J Jin
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - M Korell
- Department of Obstetrics and Gynecology, Johanna Etienne Hospital of Neuss, Neuss, Germany
| | - M Montag
- Ilabcomm GmbH, Augustin, Germany
| | - J Liebenthron
- UniCareD, University Cryobank for Assisted Reproductive Medicine and Fertility Protection at UniKiD, University Women's Hospital Düsseldorf, Düsseldorf, Germany
| | - A O Mueck
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China.,University Women's Hospital and Research Centre for Women's Health, Department of Women's Health, University of Tuebingen, Tuebingen, Germany
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5
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Khattak H, Malhas R, Craciunas L, Afifi Y, Amorim CA, Fishel S, Silber S, Gook D, Demeestere I, Bystrova O, Lisyanskaya A, Manikhas G, Lotz L, Dittrich R, Colmorn LB, Macklon KT, Hjorth IMD, Kristensen SG, Gallos I, Coomarasamy A. Fresh and cryopreserved ovarian tissue transplantation for preserving reproductive and endocrine function: a systematic review and individual patient data meta-analysis. Hum Reprod Update 2022; 28:400-416. [PMID: 35199164 PMCID: PMC9733829 DOI: 10.1093/humupd/dmac003] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 12/29/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Ovarian tissue cryopreservation involves freezing and storing of surgically retrieved ovarian tissue in liquid or vapour nitrogen below -190°C. The tissue can be thawed and transplanted back with the aim of restoring fertility or ovarian endocrine function. The techniques for human ovarian tissue freezing and transplantation have evolved over the last 20 years, particularly in the context of fertility preservation in pre-pubertal cancer patients. Fresh ovarian tissue transplantation, using an autograft or donor tissue, is a more recent development; it has the potential to preserve fertility and hormonal function in women who have their ovaries removed for benign gynaecological conditions. The techniques of ovarian tissue cryopreservation and transplantation have progressed rapidly since inception; however, the evidence on the success of this intervention is largely based on case reports and case series. OBJECTIVE AND RATIONALE The aim of this study was to systematically review the current evidence by incorporating study-level and individual patient-level meta-analyses of women who received ovarian transplants, including frozen-thawed transplant, fresh or donor graft. SEARCH METHODS The review protocol was registered with PROSPERO (CRD42018115233). A comprehensive literature search was performed using MEDLINE, EMBASE, CINAHL and Cochrane Central Register of Controlled Trials from database inception to October 2020. Authors were also contacted for individual patient data if relevant outcomes were not reported in the published manuscripts. Meta-analysis was performed using inverse-variance weighting to calculate summary estimates using a fixed-effects model. OUTCOMES The review included 87 studies (735 women). Twenty studies reported on ≥5 cases of ovarian transplants and were included in the meta-analysis (568 women). Fertility outcomes included pregnancy, live birth and miscarriage rates, and endocrine outcomes included oestrogen, FSH and LH levels. The pooled rates were 37% (95% CI: 32-43%) for pregnancy, 28% (95% CI: 24-34%) for live birth and 37% (95% CI: 30-46%) for miscarriage following frozen ovarian tissue transplantation. Pooled mean for pre-transplant oestrogen was 101.6 pmol/l (95% CI: 47.9-155.3), which increased post-transplant to 522.4 pmol/l (95% CI: 315.4-729; mean difference: 228.24; 95% CI: 180.5-276). Pooled mean of pre-transplant FSH was 66.4 IU/l (95% CI: 52.8-84), which decreased post-transplant to 14.1 IU/l (95% CI: 10.9-17.3; mean difference 61.8; 95% CI: 57-66.6). The median time to return of FSH to a value <25 IU/l was 19 weeks (interquartile range: 15-26 weeks; range: 0.4-208 weeks). The median duration of graft function was 2.5 years (interquartile range: 1.4-3.4 years; range: 0.7-5 years). The analysis demonstrated that ovarian tissue cryopreservation and transplantation could restore reproductive and hormonal functions in women. Further studies with larger samples of well-characterized populations are required to define the optimal retrieval, cryopreservation and transplantation processes. WIDER IMPLICATIONS Ovarian tissue cryopreservation and transplantation may not only be effective in restoring fertility but also the return of reproductive endocrine function. Although this technology was developed as a fertility preservation option, it may have the scope to be considered for endocrine function preservation.
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Affiliation(s)
- Hajra Khattak
- Tommy’s National Centre for Miscarriage Research, Institute of Metabolism and
Systems Research, University of Birmingham, Birmingham, UK
| | - Rosamund Malhas
- Birmingham Women’s and Children’s NHS Foundation Trust,
Birmingham, UK
| | - Laurentiu Craciunas
- Population Health Sciences Institute, Newcastle University, Newcastle upon
Tyne, UK
| | - Yousri Afifi
- Birmingham Women’s and Children’s NHS Foundation Trust,
Birmingham, UK
| | - Christiani A Amorim
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et
Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Simon Fishel
- CARE Fertility Group, Nottingham, UK
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores
University, Liverpool, UK
| | | | - Debra Gook
- Reproductive Services/Melbourne IVF, The Royal Women’s Hospital,
Parkville, VIC, Australia
| | - Isabelle Demeestere
- Research Laboratory on Human Reproduction, Faculty of Medicine, Université
Libre de Bruxelles (ULB), Brussels, Belgium
| | - Olga Bystrova
- AVA-PETER Fertility Clinic, Saint-Petersburg, Russia
| | - Alla Lisyanskaya
- Division of Gynecologic Oncology, Saint-Petersburg City Oncology
Clinic, Saint-Petersburg, Russia
| | - Georgy Manikhas
- Department of Oncology of the First Pavlov State Medical University of
Saint-Petersburg, Saint-Petersburg, Russia
| | - Laura Lotz
- Department of Obstetrics and Gynecology, Erlangen University Hospital,
Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Ralf Dittrich
- Department of Obstetrics and Gynecology, Erlangen University Hospital,
Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Lotte Berdiin Colmorn
- The Fertility Clinic, University Hospital of Copenhagen,
Rigshospitalet, Copenhagen, Denmark
| | - Kirsten Tryde Macklon
- The Fertility Clinic, University Hospital of Copenhagen,
Rigshospitalet, Copenhagen, Denmark
| | | | - Stine Gry Kristensen
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women,
Children and Reproduction, University Hospital of Copenhagen,
Rigshospitalet, Copenhagen, Denmark
| | - Ioannis Gallos
- Tommy’s National Centre for Miscarriage Research, Institute of Metabolism and
Systems Research, University of Birmingham, Birmingham, UK
| | - Arri Coomarasamy
- Tommy’s National Centre for Miscarriage Research, Institute of Metabolism and
Systems Research, University of Birmingham, Birmingham, UK
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McClam M, Xiao S. Preserving Oocytes in Oncofertility†. Biol Reprod 2022; 106:328-337. [PMID: 35040934 PMCID: PMC8862718 DOI: 10.1093/biolre/ioac008] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/09/2021] [Accepted: 01/13/2022] [Indexed: 01/19/2023] Open
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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Oktay K, Marin L, Bedoschi G, Pacheco F, Sugishita Y, Kawahara T, Taylan E, Acosta C, Bang H. Ovarian transplantation with robotic surgery and a neovascularizing human extracellular matrix scaffold: a case series in comparison to meta-analytic data. Fertil Steril 2022; 117:181-192. [PMID: 34801235 PMCID: PMC8863399 DOI: 10.1016/j.fertnstert.2021.08.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 08/17/2021] [Accepted: 08/19/2021] [Indexed: 01/03/2023]
Abstract
OBJECTIVE To report our experience with robot-assisted (RA) autologous cryopreserved ovarian tissue transplantation (ACOTT) with the use of a neovascularizing extracellular matrix scaffold. DESIGN Case series with meta-analytic update. SETTING Academic. PATIENT(S) Seven recipients of RA-ACOTT. INTERVENTION(S) Before or shortly after initiating chemotherapy, ovarian tissue was cryopreserved from 7 women, who then underwent RA-ACOTT 9.9 ± 1.8 years (range, 7-12 years) later. Perioperatively, they received transdermal estrogen and low-dose aspirin to enhance graft vascularization. Ovarian cortical pieces were thawed and sutured on an extracellular matrix scaffold, which was then robotically anastomosed to the bivalved remaining ovary in 6 cases and retroperitoneally (heterotopic) to the lower abdomen in 1 case. MAIN OUTCOME MEASURE(S) Ovarian function return, the number of oocytes/embryos, aneuploidy %, live births, and neonatal outcomes were recorded. Graft longevity was compared with the mean from the meta-analytic data. RESULT(S) Ovarian function returned 13.9 ± 2.7 weeks (11-16.2 weeks) after ACOTT, and oocytes were retrieved in all cases with 12.3 ± 6.9 embryos generated. In contrast to orthotopic, the heterotopic ACOTT demonstrated low embryo quality and an 80% aneuploidy rate. A recipient did not attempt to conceive and 2 needed a surrogate, whereas 4 of 4 delivered 6 healthy children, compared with 115 of 460 (25% pregnancy rate) from the meta-analytic data (n = 79). The mean graft longevity (43.2 ± 23.6/47.4 ± 22.8 months with/without sensitivity analysis) trended longer than the meta-analytic mean (29.4 ± 22.7), even after matching age at cryopreservation. CONCLUSION(S) In this series, RA-ACOTT resulted in extended graft longevity, with ovarian functions restored in all cases, even when the tissues were cryopreserved after chemotherapy exposure.
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Affiliation(s)
- Kutluk Oktay
- Laboratory of Molecular Reproduction and Fertility Preservation, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510, USA,Innovation Institute for Fertility Preservation, New York, NY 10028, USA
| | - Loris Marin
- Laboratory of Molecular Reproduction and Fertility Preservation, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510, USA,Department of Women’s and Children’s Health, University of Padua, Padua, PD 35100, Italy
| | - Giuliano Bedoschi
- Laboratory of Molecular Reproduction and Fertility Preservation, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510, USA,Division of Reproductive Medicine, Department of Gynecology & Obstetrics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil
| | - Fernanda Pacheco
- Innovation Institute for Fertility Preservation, New York, NY 10028, USA,Classiclínica, Porto Alegre, Rio Grande do Sul, 90000-000, Brazil
| | - Yodo Sugishita
- Laboratory of Molecular Reproduction and Fertility Preservation, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510, USA,St Marianna University, Yokohama, Japan
| | - Tai Kawahara
- Laboratory of Molecular Reproduction and Fertility Preservation, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510, USA,St Marianna University, Yokohama, Japan
| | - Enes Taylan
- Laboratory of Molecular Reproduction and Fertility Preservation, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Carlo Acosta
- Innovation Institute for Fertility Preservation, New York, NY 10028, USA
| | - Heejung Bang
- Division of Biostatistics, Department of Public Health Sciences, University of California, Davis, CA 95616, USA
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8
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Chen J, Han Y, Shi W, Yan X, Shi Y, Yang Y, Gao H, Li Y. Ovarian tissue bank for fertility preservation and anti-menopause hormone replacement. Front Endocrinol (Lausanne) 2022; 13:950297. [PMID: 36157465 PMCID: PMC9506376 DOI: 10.3389/fendo.2022.950297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 08/16/2022] [Indexed: 11/17/2022] Open
Abstract
Traditional fertility preservation methods such as embryo or oocyte cryopreservation cannot meet the needs of a cancer patient or for personal reasons. The cryopreservation of ovarian tissue can be an alternative and has become a hot spot to preserve fertility or hormone replacement. The freezing of ovarian tissue can be carried out at any time without ovarian hyperstimulation to retrieve follicles. It is an ideal strategy to preserve reproductive function in children, adolescent cancer patients, and patients who are in urgent need of cancer treatment. With the increasing demands of women with premature ovarian failure or in menopause, ovarian tissue transplantation is also an alternative for hormone replacement that can provide physiological doses of hormone levels, which can avoid a series of risks such as thrombosis, breast cancer, or other hormone-dependent tumors, caused by oral hormone replacement. Hence, ovarian tissue banking can be regarded as a mainstream strategy for fertility preservation and anti-menopause hormone replacement in further clinical investigation.
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Affiliation(s)
- Jing Chen
- Department of Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Yan Han
- The Assisted Reproduction Department, Yichun Maternal and Child Health Hospital, Yichun, China
| | - Wenjie Shi
- University Hospital for Gynecology, Pius-Hospital, University Medicine Oldenburg, Oldenburg, Germany
| | - Xiaohong Yan
- Department of Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Yingying Shi
- Reproductive Medicine Center, Women and Children’s Hospital, Xiamen University, Xiamen, China
| | - Ye Yang
- Department of Clinical Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Hong Gao
- Department of Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- *Correspondence: Hong Gao, ; Youzhu Li,
| | - Youzhu Li
- Department of Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- *Correspondence: Hong Gao, ; Youzhu Li,
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9
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Coker Appiah L, Fei YF, Olsen M, Lindheim SR, Puccetti DM. Disparities in Female Pediatric, Adolescent and Young Adult Oncofertility: A Needs Assessment. Cancers (Basel) 2021; 13:5419. [PMID: 34771582 PMCID: PMC8582476 DOI: 10.3390/cancers13215419] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/21/2021] [Accepted: 10/25/2021] [Indexed: 11/17/2022] Open
Abstract
Advancements in cancer screening and implementation of targeted treatments have significantly improved survival rates to 85% for pediatric and AYA survivors. Greater than 75% of survivors will live to experience the long-term adverse outcomes of cancer therapies, termed late effects (LE), that disrupt quality of life (QoL). Infertility and poor reproductive outcomes are significant disruptors of QoL in survivorship, affecting 12-88% of survivors who receive at-risk therapies. To mitigate risk, fertility preservation (FP) counseling is recommended as standard of care prior to gonadotoxic therapy. However, disparities in FP counseling, implementation of FP interventions, and screening for gynecologic late effects in survivorship persist. Barriers to care include a lack of provider and patient knowledge of the safety and breadth of current FP options, misconceptions about the duration of time required to implement FP therapies, cost, and health care team bias. Developing strategies to address barriers and implement established guidelines are necessary to ensure equity and improve quality of care across populations.
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Affiliation(s)
- Leslie Coker Appiah
- Division of Academic Specialists in Obstetrics and Gynecology, Department of Obstetrics and Gynecology, The University of Colorado School of Medicine, Denver, CO 80045, USA
- Pediatric and Adolescent Gynecology, Children’s Hospital Colorado, Denver, CO 80045, USA
| | - Yueyang Frances Fei
- Pediatric and Adolescent Gynecology, Nationwide Children’s Hospital, Columbus, OH 43205, USA;
| | - Mallery Olsen
- Department of Medicine, The University of Wisconsin School of Medicine, Madison, WI 53705, USA; (M.O.); (D.M.P.)
- Pediatric Hematology/Oncology, American Family Children’s Hospital, Madison, WI 53705, USA
| | - Steven R. Lindheim
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Wright State University, Dayton, OH 45409, USA;
- School of Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Diane M. Puccetti
- Department of Medicine, The University of Wisconsin School of Medicine, Madison, WI 53705, USA; (M.O.); (D.M.P.)
- Pediatric Hematology/Oncology, American Family Children’s Hospital, Madison, WI 53705, USA
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10
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Shen AY, Rozen WM, Polyakov A, Stern K, Rozen G. Applying plastic surgery principles to ovarian tissue transplantation. Gland Surg 2021; 10:2266-2274. [PMID: 34422597 DOI: 10.21037/gs-21-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 06/23/2021] [Indexed: 11/06/2022]
Abstract
Ovarian tissue cryopreservation (OTC) and transplantation is an innovative procedure increasingly utilized to help preserve fertility after gonadotoxic treatments especially in cancer patients. Approximately 30% of autotransplanted patients are able to achieve live birth, typically with the help of in-vitro fertilization. Numerous techniques and grafting sites have been described to continue to increase this figure. In the field of plastic surgery, tissue grafting has been successful performed for thousands of years and knowledge in this area has been significantly refined. A qualitative review of the literature using PubMed, Cochrane, SCOPUS and Medline databases was performed to look for articles relating to ovarian tissue transplantation (OTT) and comparisons made to plastic surgery tissue grafting. Many parallels were found between the principles of grafting in plastic surgery and the principles of OTT, including pre-operative patient optimization, suitable donor site selection, tissue harvest and preparation, graft site choice, immobilization of the graft and post-operative care. Consideration of the benefits and risks of using orthotopic versus heterotopic recipient sites is also highly important with regards to graft take, morbidity and ease of access of oocyte collection. We believe that ongoing discussion between disciplines can have the potential to improve knowledge, surgical techniques and patient outcomes.
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Affiliation(s)
| | - Warren M Rozen
- Department of Plastic and Reconstructive Surgery, Peninsula Clinical School, Central Clinical School, Faculty of Medicine, Monash University, Frankston, Victoria, Australia
| | - Alex Polyakov
- Reproductive Services, Royal Women's Hospital, Parkville, VIC, Australia.,Department of Obstetrics and Gynaecology, Royal Women's Hospital, Parkville, VIC, Australia.,University of Melbourne and Gynaecology Research Centre, Parkville, VIC, Australia.,Melbourne IVF, East Melbourne, VIC, Australia
| | - Kate Stern
- Reproductive Services, Royal Women's Hospital, Parkville, VIC, Australia.,Department of Obstetrics and Gynaecology, Royal Women's Hospital, Parkville, VIC, Australia.,University of Melbourne and Gynaecology Research Centre, Parkville, VIC, Australia.,Melbourne IVF, East Melbourne, VIC, Australia
| | - Genia Rozen
- Reproductive Services, Royal Women's Hospital, Parkville, VIC, Australia.,Department of Obstetrics and Gynaecology, Royal Women's Hospital, Parkville, VIC, Australia.,University of Melbourne and Gynaecology Research Centre, Parkville, VIC, Australia.,Melbourne IVF, East Melbourne, VIC, Australia
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11
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Lee S, Ozkavukcu S, Ku SY. Current and Future Perspectives for Improving Ovarian Tissue Cryopreservation and Transplantation Outcomes for Cancer Patients. Reprod Sci 2021; 28:1746-1758. [PMID: 33791995 PMCID: PMC8144135 DOI: 10.1007/s43032-021-00517-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 02/21/2021] [Indexed: 02/06/2023]
Abstract
Although advances in cancer treatment and early diagnosis have significantly improved cancer survival rates, cancer therapies can cause serious side effects, including ovarian failure and infertility, in women of reproductive age. Infertility following cancer treatment can have significant adverse effects on the quality of life. However, established methods for fertility preservation, including embryo or oocyte cryopreservation, are not always suitable for female cancer patients because of complicated individual conditions and treatment methods. Ovarian tissue cryopreservation and transplantation is a promising option for fertility preservation in pre-pubertal girls and adult patients with cancer who require immediate treatment, or who are not eligible to undergo ovarian stimulation. This review introduces various methods and strategies to improve ovarian tissue cryopreservation and transplantation outcomes, to help patients and clinicians choose the best option when considering the potential complexity of a patient's situation. Effective multidisciplinary oncofertility strategies, involving the inclusion of a highly skilled and experienced oncofertility team that considers cryopreservation methods, thawing processes and devices, surgical procedures for transplantation, and advances in technologies, are necessary to provide high-quality care to a cancer patient.
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Affiliation(s)
- Sanghoon Lee
- Moores Cancer Center, University of California San Diego, San Diego, CA, USA.
- Department of Obstetrics and Gynecology, Korea University College of Medicine, 73, Inchon-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.
| | - Sinan Ozkavukcu
- Center for Assisted Reproduction, Department of Obstetrics and Gynecology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Seung-Yup Ku
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
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12
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Galbinski S, Kowalewski LS, Grigolo GB, da Silva LR, Jiménez MF, Krause M, Frantz N, Bös-Mikich A. Comparison between two cryopreservation techniques of human ovarian cortex: morphological aspects and the heat shock response (HSR). Cell Stress Chaperones 2021; 27:97-106. [PMID: 35043289 PMCID: PMC8943117 DOI: 10.1007/s12192-022-01252-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 01/05/2022] [Accepted: 01/05/2022] [Indexed: 11/03/2022] Open
Abstract
This study was tailored to compare the cryopreservation of the human ovarian cortex using closed metal container vitrification or the slow-freezing technique. Superficial ovarian cortical tissue biopsies were collected from 12 participants who underwent gynaecological videolaparoscopy. The fragmented samples were allocated to three experimental conditions: (a) fresh ovarian tissue, (b) slow-freezing, and (c) vitrification with a metal closed container. After thawing or rewarming, cellular morphological analyses were performed to determine tissue viability. The cellular response to thermal stress was measured by a putative increase in the immune quantification of the heat shock protein 70 kDa (heat shock protein 70 kDa response - HSR) after a heat challenge (2 h exposure at 42 °C). Both the total number of intact follicles and the frequency of primordial follicles were higher in fresh ovarian tissue than in the preserved samples, regardless of the technique employed. There was a trend towards an increase in the absolute number of intact follicles in the tissue preserved by vitrification. After cryopreservation, a higher HSR was obtained after slow-freezing. These results indicate that both cryopreservation techniques present advantages and may be used as alternatives to ovarian tissue cryopreservation.
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Affiliation(s)
- Sérgio Galbinski
- Unidade de Reprodução Humana, Hospital Fêmina, Porto Alegre, RS, Brazil
- Programa de Pós-graduação em Ginecologia e Obstetrícia da Universidade Federal do Rio Grande do Sull, Porto Alegre, RS, Brazil
| | - Lucas Stahlhöfer Kowalewski
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Gisele Bettú Grigolo
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Larissa Ramos da Silva
- Instituto de Ciencias Basicas da Saude, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Mirela Foresti Jiménez
- Unidade de Reprodução Humana, Hospital Fêmina, Porto Alegre, RS, Brazil
- Programa de Pós-graduação em Ginecologia e Obstetrícia da Universidade Federal do Rio Grande do Sull, Porto Alegre, RS, Brazil
- Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Mauricio Krause
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Nilo Frantz
- Nilo Frantz Medicina Reprodutiva, Porto Alegre, RS, Brazil
| | - Adriana Bös-Mikich
- Instituto de Ciencias Basicas da Saude, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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13
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Rodrigues P, Marques M, Pimentel S, Rato M, Carvalho P, Correia SC, Mendes N, Amaral H, Fernandes JP, Carvalho MJ, Plancha CE. Oncofertility case report: live birth 10 years after oocyte in vitro maturation and zygote cryopreservation. J Assist Reprod Genet 2020; 37:3089-3094. [PMID: 33113072 PMCID: PMC7714812 DOI: 10.1007/s10815-020-01984-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 10/14/2020] [Indexed: 12/13/2022] Open
Abstract
PURPOSE This study aims to report a case of urgent fertility preservation in an oncological patient with collection of immature oocytes in the absence of ovarian stimulation that, through in vitro maturation (IVM), followed by ICSI and cryopreservation of zygotes resulted, 10 years later, in the live birth of a healthy baby. METHODS In September 2008, our clinic performed IVM in a 32-year-old woman diagnosed with a ductal invasive carcinoma with positive estradiol receptors, negative progesterone receptors and positive human epidermal growth factor receptor 2. The retrieval of immature oocytes was performed in the absence of ovarian stimulation after a simple mastectomy and prior to any chemotherapy treatment. The compact cumulus-oocyte complexes (COCs) collected were placed in Lag medium for 2 h, followed by incubation in IVM medium, supplemented with heat inactivated patient serum, recombinant FSH, and recombinant LH. After 30 h in culture, cumulus cells were removed, the metaphase II oocytes were microinjected, and the zygotes obtained were cryopreserved. In 2017, the zygotes were thawed and cultured until day 3. One embryo was transferred and the other cryopreserved. RESULTS Four compact COCs were collected and subjected to IVM. Two oocytes reached metaphase II and were microinjected. Two zygotes were obtained and were cryopreserved at the two pronuclear stage. Approximately 9 years later, the two zygotes were thawed and cultured until day 3. An embryo with 10 cells was transferred and implanted, resulting in the birth of a healthy baby. CONCLUSIONS In cases where urgency to start adjuvant therapy requires immediate oocyte collection, IVM may be the only option to obtain fully competent mature oocytes allowing for effective preservation of the reproductive potential.
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Affiliation(s)
- P Rodrigues
- Centro Médico de Assistência à Reprodução - CEMEARE, Lisbon, Portugal
- Escola de Psicologia e Ciências da Vida, Universidade Lusófona de Humanidade e Tecnologia de Lisboa, Lisbon, Portugal
| | - M Marques
- Centro Médico de Assistência à Reprodução - CEMEARE, Lisbon, Portugal
| | - S Pimentel
- Centro Médico de Assistência à Reprodução - CEMEARE, Lisbon, Portugal
| | - M Rato
- Centro Médico de Assistência à Reprodução - CEMEARE, Lisbon, Portugal
- Escola de Psicologia e Ciências da Vida, Universidade Lusófona de Humanidade e Tecnologia de Lisboa, Lisbon, Portugal
| | - P Carvalho
- Centro Médico de Assistência à Reprodução - CEMEARE, Lisbon, Portugal
| | - S C Correia
- Centro Médico de Assistência à Reprodução - CEMEARE, Lisbon, Portugal
| | - N Mendes
- Centro Médico de Assistência à Reprodução - CEMEARE, Lisbon, Portugal
| | - H Amaral
- Hospital CUF Descobertas Lisboa, Lisbon, Portugal
| | | | - M J Carvalho
- Centro Médico de Assistência à Reprodução - CEMEARE, Lisbon, Portugal
| | - C E Plancha
- Centro Médico de Assistência à Reprodução - CEMEARE, Lisbon, Portugal.
- Inst. Histologia e Biol. Desenvolvimento, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
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Human Ovarian Cortex biobanking: A Fascinating Resource for Fertility Preservation in Cancer. Int J Mol Sci 2020; 21:ijms21093245. [PMID: 32375324 PMCID: PMC7246700 DOI: 10.3390/ijms21093245] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 04/30/2020] [Accepted: 05/01/2020] [Indexed: 12/21/2022] Open
Abstract
Novel anti-cancer treatments have improved the survival rates of female young patients, reopening pregnancy issues for female cancer survivors affected by the tumor treatment-related infertility. This condition occurs in approximately one third of women of fertile age and is mainly dependent on gonadotoxic protocols, including radiation treatments. Besides routine procedures such as the hormonal induction of follicular growth and subsequent cryopreservation of oocytes or embryos, the ovarian protection by gonadotropin-releasing hormone (GnRH) agonists during chemotherapy as well as even gonadal shielding during radiotherapy, other innovative techniques are available today and need to be optimized to support their introduction into the clinical practice. These novel methods are hormone stimulation-free and include the ovarian cortex cryopreservation before anti-cancer treatments and its subsequent autologous reimplantation and a regenerative medicine approach using oocytes derived in vitro from ovarian stem cells (OSCs). For both procedures, the major benefit is related to the prompt recruitment and processing of the ovarian cortex fragments before gonadotoxic treatments. However, while the functional competence of oocytes within the cryopreserved cortex is not assessable, the in vitro maturation of OSCs to oocytes, allows to select the most competent eggs to be cryopreserved for fertility restoration.
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