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Updated: Apr 20, 2026
Isolation and Culture of Primary Retinal Müller Cells from Sprague-Dawley (SD) Rats
Published on: June 17, 2025
A novel method for co-culture with Müller cells and microglia in rat retina in vitro.
1Department of Ophthalmology, Shanghai Tenth People's Hospital Affiliated to Tongji University, Shanghai 200072, P.R. China.
Abstract:
Microglia and Müller cells are glial cells of the retina and constitute a functional link between neurons and vessels. The aim of the present study was to introduce a novel method of co-culture with Müller cells and microglia in rat retina. A camera was used to analyze all the cell changes. Immunofluorescence staining of glutamine synthetase and OX-42 were used for the identification of Müller cells and microglial, respectively. On day 1, all the cell types from the retina were round or oval and floating in the medium. On the following days, microglial cells were adherent and proliferated. Müller cells stretched and quickly proliferated. On days 12-15, microglial cells were floating in the medium. Following agitation, microglial cells became quickly detached from the flask walls, whereas Müller cells remained adherent. In conclusion, agitation is an effective way to separate microglial cells from Müller cells. The time of detachment and the speed of agitation are essential. Co-culture with Müller cells and microglia in the retina is economical and useful for future methods in microglia and Müller cell research.
Insights
This study presents a new method for co-culturing rat retinal Müller cells and microglia. Gentle agitation effectively separates microglia from Müller cells, aiding future research.
Area of Science:
- Ophthalmology
- Neuroscience
- Cell Biology
Background:
- Microglia and Müller cells are crucial glial cells in the retina.
- They form a functional connection between retinal neurons and blood vessels.
Purpose of the Study:
- To develop a novel co-culture method for rat retinal Müller cells and microglia.
- To establish an effective technique for separating these two cell types.
Main Methods:
- Co-culturing rat retinal cells, including Müller cells and microglia.
- Utilizing immunofluorescence staining (glutamine synthetase for Müller cells, OX-42 for microglia).
- Employing camera analysis for cell morphology and behavior observation.
- Implementing controlled agitation to assess cell detachment.
Main Results:
- Initially, all retinal cells were round and floating.
- Microglia adhered and proliferated, while Müller cells stretched and proliferated.
- After 12-15 days, microglia detached from flask walls upon agitation, whereas Müller cells remained attached.
- Agitation proved effective in separating microglia from Müller cells.
Conclusions:
- Agitation is an efficient method for separating retinal microglia from Müller cells.
- Optimizing agitation time and speed is critical for successful separation.
- This co-culture method is economical and valuable for future research on retinal glial cells.
