Cryopreservation of Human Ovarian Tissue: A Review

Autor(es)

Rivas Leonel, Ellen Cristina ^{[1, 2]} ; Lucci, Carolina M. ^[3] ; Amorim, Christiani A. ^[1]

Afiliação do(s) autor(es)

^[1] Catholic Univ Louvain, Pole Rech Gynecol, Inst Rech Expt & Clin, Ave Mounier 52 Bte B1-52-02, BE-1200 Brussels - Belgium

^[2] Sao Paulo State Univ, Dept Biol Humanities & Exact Sci, Inst Biosci, Sao Jose Do Rio Preto - Brazil

^[3] Univ Brasilia, Dept Physiol, Inst Biol Sci, Brasilia, DF - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: TRANSFUSION MEDICINE AND HEMOTHERAPY; v. 46, n. 3, p. 173-181, 2019.
• Citações Web of Science: 0

Resumo

Background: Cryopreservation of human ovarian tissue has been increasingly applied worldwide to safeguard fertility in cancer patients, notably in young girls and women who cannot delay the onset of their treatment. Moreover, it has been proposed to patients with benign pathologies with a risk of premature ovarian insufficiency. So far, more than 130 live births have been reported after transplantation of cryopreserved ovarian tissue, and almost all patients recovered their ovarian function after tissue reimplantation. Summary: This review aims to summarize the recent results described in the literature regarding human ovarian tissue cryopreservation in terms of methods and main results obtained so far. To cryopreserve human ovarian tissue, most studies describe a slow freezing/rapid thawing protocol, which is usually an adaptation of a protocol developed for sheep ovarian tissue. Since freezing has been shown to have a deleterious effect on ovarian stroma and granulosa cells, various research groups have been vitrifying ovarian tissue. Despite promising results, only 2 babies have been born after transplantation of vitrified/warmed ovarian tissue. Optimization of both cryopreservation strategies as well as thawing/warming protocols is therefore necessary to improve the survival of follicles in cryopreserved ovarian tissue. Key Messages: Human ovarian tissue cryopreservation has been successfully applied worldwide to preserve fertility in patients with malignant or nonmalignant pathologies that have a detrimental effect on fertility. Human ovarian tissue cryopreservation could also be applied as an alternative to postpone pregnancy or menopause in healthy women. Slow freezing and vitrification procedures have been applied to cryopreserve human ovarian tissue, but both alternatives require optimization. (c) 2019 S. Karger AG, Basel (AU)

• Processo FAPESP: 16/22947-8 - Técnicas para avaliação da morfologia e viabilidade de tecido reprodutivo feminino como ferramentas para auxiliar na pesquisa do câncer
• Beneficiário: Ellen Cristina Rivas Leonel
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado