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Culture and Co-Culture of Mouse Ovaries and Ovarian Follicles
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In vitro oogenesis from murine premeiotic germ cells using a new three-dimensional culture system
Lu Wang1, Zi-Hui Yan1, Tao-Ran He1
1College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao, 266109, China.
Cell Death Discovery
|July 30, 2023
Summary
Researchers developed a novel three-dimensional organoid culture (3-DOC) system to generate fully developed oocytes from early mouse germ cells. This system advances in vitro oogenesis research and applications in regenerative medicine.
Area of Science:
- Reproductive Biology
- Developmental Biology
- Stem Cell Biology
Background:
- In vitro oogenesis is crucial for understanding gametogenesis and its clinical applications.
- Previous methods using E12.5 female gonads have limitations due to heterogeneous meiotic initiation.
Purpose of the Study:
- To establish a faithful in vitro platform for complete oogenesis from premeiotic germ cells.
- To develop a novel culture system for generating high-quality oocytes.
Main Methods:
- Development of a novel three-dimensional organoid culture (3-DOC) system.
- Utilizing E11.5 premeiotic female germ cells (oogonia) as starting material.
- Single-cell analysis of pre-mRNA and mature mRNA to assess meiotic transcriptional program initiation.
Main Results:
- The 3-DOC system successfully induced fully developed oocytes from E11.5 germ cells.
- Demonstrated heterogeneous initiation of the meiotic transcriptional program at E12.5.
- Generated high-quality oocytes comparable to in vivo oocytes.
Conclusions:
- The novel 3-DOC system provides a faithful platform for in vitro oogenesis.
- This system is more cost-effective and efficient than existing 2D and 3D culture methods.
- Offers a valuable experimental model for regenerative medicine and reproductive biology research.
