3 years ago

A Novel 3D Cultured Model for Studying Early Changes in Age-Related Macular Degeneration

A Novel 3D Cultured Model for Studying Early Changes in Age-Related Macular Degeneration
Beatrix Feigl, Dietmar W. Hutmacher, June E. Jeon, Jeremy G. Baldwin, Ali Shokoohmand, Christina Theodoropoulos
Various in vitro culture systems have been used to investigate the pathogenesis of age-related macular degeneration (AMD). However, many still rely on oversimplified monolayer culture models. AMD is a complex disease, associated with the pathological changes to multiple structural components such as the Bruch's membrane, retinal pigment epithelium (RPE), and choroidal endothelial cells. This study aims to construct a novel 3D coculture model using the polycaprolactone (PCL)-gelatin electrospun scaffold, with human RPE cells (hRPE) and primate choroidal cells (RF-6A). Results from this study show that PCL-gelatin scaffolds have a highly porous ultrastructure that supports the attachment, proliferation, differentiation, and migration of the hRPEs and choroidal endothelial cells. It is also demonstrated that the PCL-gelatin 3D coculture model may be useful in exploring the molecular interplay between the hPRE and the choroidal endothelial cells, and their effects on growth factor modulation, which may be important in the pathogenesis of AMD. This study demonstrates a bioengineered highly porous polycaprolactone-gelatin 3D coculture model that can be used as a platform to investigate the molecular interplay and growth factor modulation between the human retinal epithelial cells and the choroidal endothelial cells implicated in the pathogenesis of age-related macular degeneration.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/mabi.201700221

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