Human oocyte capacitation culture: Essential step toward hormone-free assisted reproductive technology.

IF 2.7 3区 医学 Q2 OBSTETRICS & GYNECOLOGY
Reproductive Medicine and Biology Pub Date : 2025-03-12 eCollection Date: 2025-01-01 DOI:10.1002/rmb2.12640
Johan Smitz, Flor Sánchez, Sergio Romero, Heidi Van Ranst, Ellen Anckaert, Robert B Gilchrist, Tuong M Ho, Lan N Vuong, Yoshiharu Morimoto
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引用次数: 0

Abstract

Background: In vitro oocyte maturation (IVM) is not a novel concept; however, its wide-scale practice has been limited because of the lower clinical outcomes compared to conventional assisted reproductive technologies.

Methods: This comprehensive review addresses the significant advances made in oocyte in vitro maturation with the biphasic capacitation (CAPA)-IVM strategy applied to small ovarian antral follicles in humans over the last 10 years. CAPA-IVM consists of a prematuration phase wherein immature oocytes are temporarily meiotically arrested to gain competence before undergoing meiotic resumption.

Main findings: The integration of knowledge from basic research in animal models into clinical practice has led to a reevaluation of IVM for policystic ovary syndrome (PCOS) and onco-fertility patients. The introduction of meticulously conceived growth factors, hormonal supplements, and culture conditions led to an integrated biphasic CAPA-IVM system that promotes oocyte competence. A series of prospective randomized controlled studies validated the reproducible improvements in clinical outcomes and the safety of CAPA-IVM. So far, nearly 1000 babies have been born using this approach.

Conclusion: The use of CAPA-IVM in clinical studies has set the tone for major progress in the field and is achieving a safer, less expensive, and less emotionally loaded IVF experience, currently validated for PCOS patients.

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来源期刊
CiteScore
5.70
自引率
5.90%
发文量
53
审稿时长
20 weeks
期刊介绍: Reproductive Medicine and Biology (RMB) is the official English journal of the Japan Society for Reproductive Medicine, the Japan Society of Fertilization and Implantation, the Japan Society of Andrology, and publishes original research articles that report new findings or concepts in all aspects of reproductive phenomena in all kinds of mammals. Papers in any of the following fields will be considered: andrology, endocrinology, oncology, immunology, genetics, function of gonads and genital tracts, erectile dysfunction, gametogenesis, function of accessory sex organs, fertilization, embryogenesis, embryo manipulation, pregnancy, implantation, ontogenesis, infectious disease, contraception, etc.
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