Karyotype Changes in Cultured Human Corneal Endothelial Cells
Author Information
Author(s): Miyai Takashi, Maruyama Yoko, Osakabe Yasuhiro, Nejima Ryohei, Miyata Kazunori, Amano Shiro
Primary Institution: Miyata Eye Hospital, Miyakonojo, Japan; Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
Hypothesis
The study aims to examine karyotype changes in cultured human corneal endothelial cells (HCECs).
Conclusion
Donor age and the frequency of aneuploidy have a positive correlation in cultured HCECs at the fifth passage.
Supporting Evidence
- At the third passage, 41.7% of cases showed sex chromosome loss.
- At the fifth passage, 31.3% of cases showed an almost normal karyotype.
- Donor age and frequency of aneuploidy had a statistically significant correlation at the fifth passage.
Takeaway
As people get older, the cells taken from their corneas can have more problems, so it's better to use younger donors for eye treatments.
Methodology
HCECs were cultured from 20 donors, and karyotype changes were analyzed at the third and fifth passages using G-band karyotyping.
Limitations
The study had a small sample size for the analysis of cryopreservation effects.
Participant Demographics
20 donors aged 2 to 77 years, with 9 males and 11 females.
Statistical Information
P-Value
0.042
Statistical Significance
p=0.042
Want to read the original?
Access the complete publication on the publisher's website