scholarly journals Role of Stem Cells in the Ovarian Tissue Cryopreservation and Transplantation for Fertility Preservation

2021 ◽  
Vol 22 (22) ◽  
pp. 12482
Author(s):  
Jeong Min Kim ◽  
Seongmin Kim ◽  
Sanghoon Lee

Although the cancer survival rate has increased, cancer treatments, including chemotherapy and radiotherapy, can cause ovarian failure and infertility in women of reproductive age. Preserving fertility throughout cancer treatment is critical for maintaining quality of life. Fertility experts should propose individualized fertility preservation methods based on the patient’s marital status, pubertal status, partner status, and the urgency of treatment. Widely practiced fertility preservation methods, including ovarian transposition and embryo and oocyte cryopreservation, are inappropriate for prepubertal girls or those needing urgent initiation of cancer treatment. Ovarian tissue cryopreservation and transplantation, an emerging new technology, may be a solution for these cancer patients. The use of stem cells in ovarian tissue cryopreservation and transplantation increases oxygenation, angiogenesis, and follicle survival rates. This review discusses the recent advances in ovarian tissue cryopreservation and transplantation with special focus on the use of stem cells to improve fertilization techniques.

Author(s):  
Sanghoon Lee ◽  
Sinan Ozkavukcu ◽  
Seung-Yup Ku

AbstractAlthough 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.


2020 ◽  
Vol 21 (20) ◽  
pp. 7792
Author(s):  
Hyun-Woong Cho ◽  
Sanghoon Lee ◽  
Kyung-Jin Min ◽  
Jin Hwa Hong ◽  
Jae Yun Song ◽  
...  

Due to improvements in chemotherapeutic agents, cancer treatment efficacy and cancer patient survival rates have greatly improved, but unfortunately gonadal damage remains a major complication. Gonadotoxic chemotherapy, including alkylating agents during reproductive age, can lead to iatrogenic premature ovarian insufficiency (POI), and loss of fertility. In recent years, the demand for fertility preservation has increased dramatically among female cancer patients. Currently, embryo and oocyte cryopreservation are the only established options for fertility preservation in women. However, there is growing evidence for other experimental techniques including ovarian tissue cryopreservation, oocyte in vitro maturation, artificial ovaries, stem cell technologies, and ovarian suppression. To prevent fertility loss in women with cancer, individualized fertility preservation options including established and experimental techniques that take into consideration the patient’s age, marital status, chemotherapy regimen, and the possibility of treatment delay should be provided. In addition, effective multidisciplinary oncofertility strategies that involve a highly skilled and experienced oncofertility team consisting of medical oncologists, gynecologists, reproductive biologists, surgical oncologists, patient care coordinators, and research scientists are necessary to provide cancer patients with high-quality care.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e20001-e20001
Author(s):  
Yasmin C. Gosiengfiao ◽  
Marleta Reynolds ◽  
Veena Rajaram ◽  
Barbara Lockart ◽  
Kristin Smith ◽  
...  

e20001 Background: Advances in cancer therapy have improved the long-term survival of patients suffering from malignancies. High doses of alkylating agents and radiation are known to cause infertility in cancer survivors. Ovarian stimulation is not an option for prepubertal females, leaving experimental ovarian tissue cryopreservation (OTC) as the only option for preserving the reproductive potential of prepubescent girls. Little data is available regarding the condition of a prepubertal ovary after cancer treatment is received. This case study demonstrates the possibility of OTC post cancer treatment in a prepubertal female. Methods: A 9-year-old girl with multiply recurrent vaginal rhabdomyosarcoma presented for fertility preservation upon local recurrence of her tumor. Prior therapy included 32,200 mg/m2 of cyclophosphamide, 9,000 mg/m2 of ifosfamide and vaginal brachytherapy after ovarian transposition. A unilateral oophorectomy was performed with therapeutic partial vaginectomy, total hysterectomy and bilateral salpingectomy. A 1 cm section of the ovary was dissected and sent to pathology. The ovarian tissue planes were separated and the cortical tissue removed from the medulla. The cortical tissue was then cut into approximately 2 cm x 0.5cm x 0.1cm strips. 80% of this tissue was cryopreserved using a slow-freeze method for the patient’s future reproductive use and 20% was provided to the Oncofertility Consortium for research as per the ovarian tissue cryopreservation protocol. Results: Follicle stimulating hormone (FSH) level prior to oophorectomy was 0.5 mIU/mL (Normal 1-6 mlU/mL).The ovary was small and fibrotic. Microscopically, primordial follicular density was 1.41/mm2. No follicles of more mature stage were noted. There was no evidence of malignancy in the tissue. Conclusions: The presence of viable follicles in the ovarian tissue suggests that fertility preservation may still be possible even in patients who have received therapy that is considered to be likely to impair fertility. For this patient, who was scheduled to have an invasive surgery, adding on ovarian tissue cryopreservation presented a very minimal risk with a potential for a great benefit.


2018 ◽  
Author(s):  
Chantae S Sullivan-Pyke ◽  
Clarisa Gracia

Fertility preservation has becoming increasingly important for patients at risk for gonadal failure, including those needing treatment for cancer or autoimmune conditions, genetic conditions that predispose to gonadal insufficiency, and age-related fertility decline. Embryo cryopreservation and mature oocyte cryopreservation are the standards for fertility preservation in postpubertal women. Ovarian tissue cryopreservation and gonadotropin-releasing hormone agonist use for ovarian suppression are experimental methods that may be offered to patients for whom embryo and/or mature oocyte cryopreservation are not applicable. The cryopreservation of spermatozoa is the standard for fertility preservation in postpubertal males, but testicular tissue cryopreservation may be offered to prepubertal males.   This review contains 10 figures, 6 tables and 53 references Key words: controlled ovarian stimulation, embryo cryopreservation, gonadotropin-releasing hormone agonist, in vitro maturation, oocyte cryopreservation, ovarian tissue cryopreservation, sperm extraction, testicular tissue cryopreservation  


2018 ◽  
Vol 36 (2) ◽  
pp. 335-340 ◽  
Author(s):  
Daniel Lantsberg ◽  
Adel Farhi ◽  
Inna Zaslavsky-Paltiel ◽  
Barbara G. Silverman ◽  
Liat Lerner-Geva ◽  
...  

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
E Yasmin ◽  
S Latif ◽  
C Dia. Garcia ◽  
S. Martin. D Silva

Abstract Study question What is the gap between guidance and practice of fertility preservation between countries and within countries with common clinical guidelines? Summary answer Substantial variation in provision of FP exists between countries and within individual countries with gaps between national and international guidelines and policies governing provision. What is known already A robust guideline on female FP was published by ESHRE in 2020, advising the application of FP in cancer and other conditions where treatment with cytotoxic agents or surgery will compromise reproductive function. Across Europe, in 13 countries (43.3%) FP is funded for all available FP procedures, in 13 countries (43.3%) no FP funding is available, and in 4 countries (13.3%) at least one FP option is funded. Variation in state provision of fertility care in different countries in Europe was highlighted in the ESHRE guidance. It did not specifically examine individual national policies or whether a national policy exists. Study design, size, duration Five clinicians performing FP in Europe were contacted to collect current FP provision data. Policies retrieved from the internet were not included as they could not be verified. Finally, FP funding policies for 135 Clinical Commissioning Groups (CCGs) in England, 14 Health Boards in Scotland, 7 Health Boards in Wales and 5 Trusts in Northern Ireland and 17 policies for regional heath services in Spain were included were included. Participants/materials, setting, methods Policies on FP for the UK and Spain were reviewed (n = 178), including policies from the 161 regions from the four nations of the UK and policies of 17 autonomous bodies in Spain. Information on funded procedures, type of conditions included for funding and duration of storage were extracted. The provision of FP was compared to the current European Society of Human Reproduction and Embryology (ESHRE) and National Institute for Health and Care Excellence (NICE) guidelines. Main results and the role of chance In England, 127/128 (99%) CCGs fund cryopreservation of oocytes, sperm and embryos. Cancer is the exclusive indication in 11%. Provision of FP for transgender individuals is specified in 28%, ovarian tissue cryopreservation is funded in 8% and storage funding varies from five to ten years. In Scotland, a national policy is applied. All 14 health boards equitably fund cryopreservation of oocytes, sperm, embryos and ovarian and testicular tissue. Funding is provided for cancer, medical conditions which may impair fertility and transgender individuals. Storage funding is based on a five yearly review until age 43 in women and 60 in men. In Wales and Northern Ireland, cryopreservation of oocytes, sperm and embryos is funded for people undergoing medical or surgical treatment that is likely to make them infertile, provision for transgender individuals is not specified and ovarian tissue cryopreservation is not funded. In Spain, all 17 Health Services fund cryopreservation of oocytes, sperm and embryos for patients whose fertility is at risk due to gonadotoxic treatments or other pathological processes. Ovarian tissue cryopreservation is funded in 94%, provision for transgender individuals is specified in 12%, and storage funding is available until the age of 50 in women and 55 in men. Limitations, reasons for caution Inability to retrieve fertility preservation policies for every country in Europe is a limitation, for which ongoing collaboration is sought. The variable nature of FP provision is likely to be multi-factorial; a lag in publication of guidelines and updated policies, ethical considerations and resource distribution may govern health policies. Wider implications of the findings: The study highlights that provision of FP not only varies between countries but is also inconsistent within the same country. It is clear that there is a gap between ideal, evidence-based practice and actual provision. Variation in policies limits uniform access to care for patients. Trial registration number Not applicable.


Author(s):  
Zahra Bahroudi ◽  
Mahsa Rezaei Zarnaghi ◽  
Melika Izadpanah ◽  
Ali Abedelahi ◽  
Behrooz Niknafs ◽  
...  

2014 ◽  
Vol 3 (2) ◽  
pp. 92-95
Author(s):  
Ron Peek ◽  
Johan R. Westphal ◽  
Angelique J.C.M. van Dongen ◽  
Jacqueline J. Loonen ◽  
Didi D.M. Braat ◽  
...  

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