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- Title
Temperature effects on the disappearance and reappearance of corneal-endothelium primary cilia.
- Authors
Tanioka, Hidetoshi; Shinomiya, Katsuhiko; Kinoshita, Shigeru; Sotozono, Chie
- Abstract
Introduction: To elucidate the specific functions of the primary cilia in corneal endothelial cells (CECs) by investigating the histological changes of corneal endothelium exposed at low temperature. Study design: Experimental study. Methods: This study involved corneas freshly obtained from Japanese white rabbits preserved in Optisol™-GS (Bausch & Lomb) corneal storage medium at 4 °C for 0, 1, and 7 days. Corneas preserved for 7 days were also incubated at 37 °C in culture media for an additional 2 days. A rabbit CEC line was also preserved in Optisol™-GS at 4 °C for 0 and 1 day. The corneal endothelium specimens and CECs were then assessed by immunostaining and scanning electron-microscopy (SEM). Results: Immediately post isolation, the CECs of the specimens showed positive immunostaining for primary cilia (i.e., approximately 20%) via anti-acetylated alpha Tubulin antibody and SEM observation. Primary cilia were found to have attenuated/disappeared on the corneal endothelium specimens preserved for 1 or 7 days at 4 °C. After an additional 2-day incubation at 37 °C, primary cilia reappeared on the corneal endothelium specimens (approximately 20%). The disappearance of cilia during the preservation period was also observed in the immortalized CECs. Conclusion: The findings in this study using rabbit corneas indicate that the primary cilia of corneal endothelium preserved at low temperature disappeared, then reappeared after returning to body temperature, suggesting that temperature has a direct effect on the primary cilia of corneal endothelium.
- Subjects
CILIA &; ciliary motion; TEMPERATURE effect; BODY temperature; ENDOTHELIAL cells; CORNEA
- Publication
Japanese Journal of Ophthalmology, 2022, Vol 66, Issue 5, p481
- ISSN
0021-5155
- Publication type
Article
- DOI
10.1007/s10384-022-00933-0