Optimization of Cultured Human Corneal Endothelial Cell Sheet Transplantation and Post-Operative Sheet Evaluation in a Rabbit Model.

Abstract:

PURPOSE:To optimize cultured human corneal endothelial cell (cHCEC) sheet transplantation technique for maintenance of cHCEC viability. MATERIALS AND METHODS:cHCEC sheets cultured on a collagen scaffold were covered with or without Viscoat® and exposed to humidified air in the incubator. cHCEC sheets with or without Viscoat® were transplanted into cadaveric porcine eyes by the DSAEK technique with full air tamponade and incubated for various time periods. Then cell viability was determined by using the live/dead assay kit. cHCEC sheets with Viscoat® were transplanted into rabbit eyes and the sheets were histologically evaluated before and 14 days after transplantation. RESULTS:A collagen scaffold and Viscoat® were effective for protecting cHCEC from damage due to air exposure in vitro. All cells died after 18 hours of air exposure in porcine eyes in Viscoat® untreated control. In contrast, Viscoat® treatment sustained full cell viability following 2 hours and could maintain approximately 80% viability after 18 hours. In a rabbit model, transplanted cHCEC sheet with Viscoat® maintained cell density at 2803 ± 229 mm(2) (18% cell loss) and expression of N-cadherin, zonula occludens-1, and actin-filament localized to cell boundary as similar as donor HCEC. CONCLUSION:Viscoat® can contribute to cHCEC protection from damage caused by exposure to air.

journal_name

Curr Eye Res

journal_title

Current eye research

authors

Yamaguchi M,Shima N,Kimoto M,Ebihara N,Murakami A,Yamagami S

doi

10.3109/02713683.2015.1101774

subject

Has Abstract

pub_date

2016-09-01 00:00:00

pages

1178-84

issue

9

eissn

0271-3683

issn

1460-2202

journal_volume

41

pub_type

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