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Author Spotlight: Modeling Retinal Pathologies with Enhanced RPE Cell-Based Disease Models

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Isolation of Primary Porcine Retinal Pigment Epithelial Cells for In Vitro Modeling.

Chase A Paterson¹, Dillon Weatherston¹, Teren Teeples¹

¹Department of Biological Engineering, Utah State University.

Journal of Visualized Experiments : Jove

|May 20, 2024

Summary

Researchers developed a cost-effective method to isolate primary retinal pigment epithelium (RPE) cells from porcine eyes. This provides a valuable alternative for age-related macular degeneration (AMD) research, overcoming limitations of current RPE cell sources.

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Area of Science:

Ophthalmology
Cell Biology
Regenerative Medicine

Background:

The retinal pigment epithelium (RPE) is vital for photoreceptor support and its degeneration is implicated in vision loss diseases like age-related macular degeneration (AMD).
Current RPE models, including human donor eyes and induced pluripotent stem cells (iPSCs), face challenges such as long differentiation times, high costs, and limited accessibility.
The ARPE-19 cell line, while available, does not fully recapitulate in vivo RPE characteristics and lacks broad acceptance in ophthalmology research.

Purpose of the Study:

To establish a protocol for isolating and subculturing primary RPE cells from a readily available and cost-effective source.
To provide a representative RPE cell model for AMD research that overcomes the limitations of existing methods.

Main Methods:

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Primary Culture of Porcine Retinal Pigment Epithelial Cells

Primary Culture of Porcine Retinal Pigment Epithelial Cells

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Isolation of Primary Mouse Retinal Pigmented Epithelium Cells

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Developed a protocol for the isolation and subculture of primary RPE cells post-mortem from porcine eyes.
Utilized common laboratory materials and techniques typically found in tissue culture facilities.

Main Results:

Successfully isolated and subcultured primary RPE cells from porcine eyes.
The resulting primary RPE cells offer a differentiated and cost-effective alternative to iPSCs, human donor eyes, and ARPE-19 cells.

Conclusions:

This protocol provides a practical and economical method for obtaining primary RPE cells suitable for AMD research.
Porcine eyes represent a viable and accessible source for generating primary RPE cells, supporting research accessibility, especially in resource-limited settings.