Journal of Capital Medical University ›› 2022, Vol. 43 ›› Issue (3): 329-335.doi: 10.3969/j.issn.1006-7795.2022.03.001

• Menopause Gynecological Endocrinology and Fertility Preservation •     Next Articles

Application progress of in vitro maturation of immature oocytes for fertility preservation

Cheng Jiaojiao, Ruan Xiangyan*, Du Juan, Gu Muqing   

  1. Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University. Beijing Maternal and Child Health Care Hospital, Beijing 100026, China
  • Received:2021-02-27 Online:2022-06-21 Published:2022-06-01
  • Contact: *E-mail:ruanxiangyan@ccmu.edu.cn
  • Supported by:
    Natural Science Foundation of Beijing (7202047), Capital's Funds for Health Improvement and Research (2020-2-2112), Beijing Municipal Administration of Hospitals' Ascent Plan (DFL20181401).

Abstract: Ovarian tissue cryopreservation and transplantation has been routinely used for fertility preservation in girls and young female patients with high risk of premature ovarian insufficiency. Autotransplantation of cryopreserved ovarian cortex after thawed can restore fertility and endocrine function. However, patients with high risk of ovarian metastasis have a higher risk of reintroducing malignant cells. The frozen ovarian cortex mainly contains primordial follicles, but immature oocytes can also be obtained from small antral follicles during ovarian tissue preparation. Some live births have been born through in vitro matured of ovarian tissue oocytes (OTO-IVM). Biphasic in vitro maturation (IVM) capacitation (CAPA)-IVM system significantly optimizes the IVM system. In the case of high risk of transplantation, IVM of oocytes from growing follicles can safely restore fertility, which will maximize the potential of all fertility preservation patients. However, the evidence of OTO-IVM is still limited and its repeatability needs to be confirmed. Children with OTO-IVM are followed up. This article mainly reviews the application progress of in vitro maturation of human immature oocytes for fertility preservation.

Key words: immature oocytes, in vitro maturation, fertility preservation, ovarian tissue cryopreservation

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