首页   按字顺浏览 期刊浏览 卷期浏览 The Potential for Eye Bank Limbal Rings to Generate Cultured Corneal Epithelial Allogra...
The Potential for Eye Bank Limbal Rings to Generate Cultured Corneal Epithelial Allografts

 

作者: S. James,   Andrea Rowe,   Luca Ilari,   Sheraz Daya,   Robin Martin,  

 

期刊: Cornea  (OVID Available online 2001)
卷期: Volume 20, issue 5  

页码: 488-494

 

ISSN:0277-3740

 

年代: 2001

 

出版商: OVID

 

关键词: Stems cells;Tissue engineering;Corneal epithelium;Cultured allografts

 

数据来源: OVID

 

摘要:

Purpose.Patients with severe limbal deficiencies are unable to maintain a stable corneal surface. If sheets of cultured allogeneic corneal epithelium could be prepared from eye banked corneal limbal rings, which are normally discarded after keratoplasty, the sheets may be beneficial for grafting onto patients with limbal stem cell deficiencies.Method.Biopsies of limbal tissue (2–3 mm2) removed from organ-cultured corneal limbal rings or from fresh whole globes were either trypsinized or set up as explants to assess their potential for corneal epithelial cell production.Results.Several biopsies were taken from each of 21 organ-cultured limbal rings and 10 fresh cadaveric globes. Cultures were generated from every cadaveric eye (10/10), although not all biopsies from the same eye gave rise to cultures. Confluent sheets of cultured cells were also produced successfully from limbal rings that had been in organ culture for up to 25 days, but the success rate from limbal ring material was variable (14/21). An analysis of parameters associated with each limbal ring was carried out in an attempt to identify the reasons for the different efficiencies of epithelial production. No obvious single parameter correlation was detected, although there was a trend to poorer efficiency with increased donor age.Conclusions.Confluent sheets of cultured corneal epithelial cells, suitable for grafting, can be produced from limbal tissue taken from eye bank organ-cultured corneas, although it takes longer, on average, to reach confluence (17–21 days) than an equivalent sample from a fresh eye (9–12 days).

 

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