title: Experimental transplantation of human retinal pigment epithelial cells on collagen substrates.
abstract: We studied the use of human retinal pigment epithelial cells cultured on a collagen support as a potential transplantation therapy to replace diseased or damaged retinal pigment epithelium. Using a transvitreal approach, we transplanted human retinal pigment epithelial cells attached to either a sheet of noncross-linked or cross-linked type I collagen into the subretinal space of New Zealand white rabbits, whose eyes lack pigment. Animals were killed after six weeks, and the eyes were fixed for light microscopy. The results demonstrated that, in eyes receiving the noncross-linked collagen support, a layer of pigmented donor retinal pigment epithelium was visible within the subretinal space, with a normal-appearing retina and no evidence of proliferative vitreoretinopathy or graft rejection. We believe this method may be applicable to replace dysfunctional retinal pigment epithelial cells in humans.
authors.affiliation: Sensory & Electrophysiology Research Unit, Touro Infirmary, New Orleans, Louisiana 70115.
authors.forename: N S
authors.initials: NS
authors.lastname: Bhatt
authors.forename: D A
authors.initials: DA
authors.lastname: Newsome
authors.forename: T
authors.initials: T
authors.lastname: Fenech
authors.forename: T P
authors.initials: TP
authors.lastname: Hessburg
authors.forename: J G
authors.initials: JG
authors.lastname: Diamond
authors.forename: M V
authors.initials: MV
authors.lastname: Miceli
authors.forename: K E
authors.initials: KE
authors.lastname: Kratz
authors.forename: P D
authors.initials: PD
authors.lastname: Oliver
mesh_terms: D000818:Animals; D017690:Cell Transplantation; D002478:Cells, Cultured; D003094:Collagen; D016332:Fetal Tissue Transplantation; D006801:Humans; D010857:Pigment Epithelium of Eye / Q000166:cytology*; D011817:Rabbits; D012160:Retina / Q000601:surgery; D014183:Transplantation, Heterologous
chemical_list: D003094:Collagen