Vitrification Method for Cryopreservation of Mouse Ovaries and Preantral Follicles
Author Information
Author(s): Lin Ta-Chin, Yen Jui-Mei, Kuo Tsung-Cheng, Gong Kun-Bing, Hsu Kung-Hao, Hsu Teng-Tsao
Primary Institution: Kuo General Hospital
Hypothesis
Can the metal plate surface vitrification method improve the developmental potential of cryopreserved mouse ovaries and preantral follicles?
Conclusion
The metal plate surface vitrification method is effective for cryopreservation of mouse ovaries and preantral follicles.
Supporting Evidence
- High survival rates of vitrified-thawed preantral follicles were obtained regardless of the treatments used.
- No significant differences in survival rates were found between preantral follicles vitrified in 2 μl or 6 μl droplets.
- Lower success rates of antral-like cavity formation were found in the whole ovaries group compared to ovarian tissue slices.
- Almost all surviving vitrified-thawed preantral follicles developed to a granulosa cell outgrowth pattern after 12 days of culture.
- 74% of cultures in the 2 μl droplet group developed a thin transparent antral follicle during the culture period.
Takeaway
This study shows a way to freeze mouse ovaries and tiny egg sacs so they can be used later, and it works really well.
Methodology
The study used a metal plate for rapid cooling of vitrification solution droplets containing preantral follicles and ovaries, followed by thawing and culture.
Limitations
The study did not explore the long-term effects of vitrification on the genetic integrity of the follicles.
Participant Demographics
Mice used were C57BL/6 strain, including 14-day-old females for preantral follicles and newborns for ovaries.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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