Prolongation of corneal allograft survival using cyclosporine in a polylactide-co-glycolide polymer
Xie, LX; Shi, WY; Wang, ZY; Bei, JZ; Wang, SG
Source PublicationCORNEA
AbstractPurpose. To test for prolongation of corneal transplant survival with cyclosporine in a polymer placed in the anterior chamber of corneal allograft recipients. Methods. Wistar inbred rats with vascularized corneas were recipients of corneal allografts from Sprague-Dawley donor rats. Grafted rats were randomized into six groups: untreated control animals, cyclosporine-polymer anterior chamber recipients, cyclosporine-polymer subconjunctival recipients, cyclosporine-olive oil drop recipients, polymer-only anterior chamber recipients, and autografted Wistar rats. Grafts were examined by slit lamp every 3 days and the clinical condition scored. The cyclosporine concentration in the aqueous humor was assayed at 1, 2, and 4 weeks. At 2 and 4 weeks after transplantation, the eyes were collected for histopathologic evaluation of the grafts. Results. The median survival time of untreated corneal allografts was 8.2 +/- 1.48 days for grafts treated with topical cyclosporine, 8.5 +/- 1.50 days for polymer-only anterior chamber implants, 10.6 +/- 1.90 days for 1% cyclosporine drops, 11.4 +/- 2.50 days for grafts given subconjunctival cyclosporine-polymer, 17 +/- 3.05 days for grafts given cyclosporine-polymer implants in the anterior chamber, and more than 3 months in autografted rats. There was a statistically significant difference (p < 0.05) between the survival time of the allografts in the animals treated with the cyclosporine-polymer in the anterior chamber compared with the other groups of graft recipients. Significantly higher concentrations of cyclosporine were found in the eyes given an anterior chamber implant of cyclosporine-polymer than in the other treatment groups or the untreated rats. The cyclosporine-polymer implants placed in the anterior chamber induced a transient inflammatory response in transplanted eyes. Conclusions. Cyclosporine-polymer placed in the anterior chamber significantly prolongs corneal allograft survival in a high-risk corneal graft rejection. This intraocular delivery system may be a valuable adjunct for the suppression of immune graft rejection in high-risk recipients of corneal transplants.
KeywordCorneal Allografts Cyclosporine Immune Suppression Polymer
Indexed BySCI
WOS IDWOS:000172221300015
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Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorXie, LX
Affiliation1.Shandong Eye Inst & Hosp, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Xie, LX,Shi, WY,Wang, ZY,et al. Prolongation of corneal allograft survival using cyclosporine in a polylactide-co-glycolide polymer[J]. CORNEA,2001,20(7):748-752.
APA Xie, LX,Shi, WY,Wang, ZY,Bei, JZ,&Wang, SG.(2001).Prolongation of corneal allograft survival using cyclosporine in a polylactide-co-glycolide polymer.CORNEA,20(7),748-752.
MLA Xie, LX,et al."Prolongation of corneal allograft survival using cyclosporine in a polylactide-co-glycolide polymer".CORNEA 20.7(2001):748-752.
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