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Updated: Feb 12, 2026
05:04
Author Spotlight: Efficient Isolation of Primary Retinal Pigment Epithelial Cells from Adult Mice for Retinopathy Research
Published on: May 24, 2024
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Cultured Human Retinal Pigment Epithelial (hRPE) Sheets: A Search for Suitable Storage Conditions
Ayyad Z Khan1, Tor P Utheim1, Sjur Reppe1
11Department of Medical Biochemistry,Oslo University Hospital,Kirkeveien 166,P.O. Box 4956,Nydalen,0424 Oslo,Norway.
Summary
Storing human retinal pigment epithelial cells (hRPE) at 4°C best preserves their morphology. Adding sericin to the storage medium further improves cell pigmentation and protein levels after 7 days.
Area of Science:
- Ophthalmology
- Cell Biology
- Biomaterials Science
Background:
- Human retinal pigment epithelial cell (hRPE) replacement therapy requires optimized cell culture, preservation, and storage.
- Effective storage methods are crucial for maintaining hRPE viability and function for therapeutic applications.
Purpose of the Study:
- To identify optimal storage temperature and medium for hRPE preservation.
- To evaluate the impact of sericin on stored hRPE characteristics.
Main Methods:
- hRPE sheets were stored for 7 days at temperatures ranging from 4°C to 37°C.
- Live/dead assay, light microscopy, pH, and protein expression analysis were performed.
- The effect of sericin addition to the storage medium at 4°C was investigated.
Main Results:
- Storage at 4°C best preserved hRPE morphology after 7 days.
- Sericin addition to the storage medium maintained cell morphology.
- Sericin improved pigmentation and pigmentation-related protein levels in stored hRPE.
Conclusions:
- 4°C is the optimal storage temperature for hRPE preservation.
- Sericin enhances the quality of stored hRPE, improving morphology, pigmentation, and protein expression for potential therapeutic use.
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