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In vitro maturation of oocytes
K Hardy1, C S Wright, S Franks
1Dept. of Reproductive Science and Medicine, Imperial College School of Medicine, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK.
British Medical Bulletin
|March 20, 2001
Summary
Rescuing and maturing human oocytes in vitro (IVM) could aid fertility but faces challenges. Current methods show promise but require more development for clinical use in treating infertility.
Area of Science:
- Reproductive biology
- Cell biology
Background:
- Most oocytes die by atresia; only a fraction are ovulated.
- In vitro maturation (IVM) aims to mature oocytes outside the body for fertility treatments.
- Human folliculogenesis is complex and lengthy, making IVM challenging.
Purpose of the Study:
- To explore the potential and challenges of in vitro maturation (IVM) for human oocytes.
- To assess current advancements in rescuing and maturing oocytes for clinical applications.
Main Methods:
- Review of existing research on oocyte maturation and folliculogenesis.
- Analysis of successful and unsuccessful attempts at in vitro maturation (IVM).
Main Results:
- Limited success has been achieved with IVM, with a few live births reported from immature oocytes.
- Growth of follicles in ovarian tissue and antrum formation in isolated follicles are possible.
- Significant hurdles remain in maturing oocytes to pre-ovulatory stages in vitro.
Conclusions:
- IVM holds potential for infertility treatment but requires further research and development.
- The complex follicular environment is crucial for oocyte quality and developmental competence.
- Caution is advised for clinical IVM due to oocyte meiotic errors and the need for a supportive follicular environment.
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