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Updated: May 4, 2026
Isolation and Culture of Primary Retinal Müller Cells from Sprague-Dawley (SD) Rats
Published on: June 17, 2025
Comparison of two methods used to culture and purify rat retinal Müller cells
Wei-Tao Song1, Xue-Yong Zhang1, Si-Qi Xiong1
1Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China.
Aim:
To study two methods for culturing and purifying Sprague-Dawley (SD) rat retinal Müller cells and determine which one is better.
Methods:
The passage culture method of Müller cells was respectively carried out by complete pancreatic enzyme digestion method and repeated incomplete pancreatic enzyme digestion method. After culturing retinal cells for one month through these two methods, fluorescence-activated cell sorter (FACS), RT-PCR, and immunohistochemistry technology were performed to examine the enrichment and purity of Müller glial cells, and carried out two-sample approximate t test using SSPS 13.0 to further compare the Müller cell positive rate in both methods.
Results:
The statistical results showed that the purity of Müller cells was 83.2%±5.16% in group A, and the purity was 98.5%±1.08% in group B. The two-sample approximate t test analysis demonstrated that the difference between group A and group B was statistically significant (t=-9.178, P<0.005). The results clearly exhibited a difference between the purity of Müller cells cultured by the complete pancreatic enzyme digestion method (group A) and the repeated incomplete pancreatic enzyme digestion method (group B).
Conclusion:
Compared with the complete pancreatic enzyme digestion method, this novel method was more efficient and a higher purity of Müller cells could be obtained using this approach.
Insights
A novel method for culturing Sprague-Dawley rat Müller cells achieved significantly higher purity (98.5%) compared to the complete pancreatic enzyme digestion method (83.2%). This improved technique enhances Müller glial cell isolation for research.
Area of Science:
- Retinal cell biology
- Neuroscience research
Background:
- Müller glial cells are crucial for retinal structure and function.
- Efficient isolation of pure Müller cells is essential for studying retinal diseases and developing therapies.
Purpose of the Study:
- To compare two methods for culturing and purifying Sprague-Dawley rat retinal Müller cells.
- To determine the optimal method for achieving high purity Müller glial cells.
Main Methods:
- Two culture methods were compared: complete pancreatic enzyme digestion and repeated incomplete pancreatic enzyme digestion.
- Purity was assessed using fluorescence-activated cell sorting (FACS), RT-PCR, and immunohistochemistry.
- Statistical analysis (two-sample approximate t test) was performed to compare cell purity.
Main Results:
- The repeated incomplete pancreatic enzyme digestion method yielded a significantly higher purity of Müller cells (98.5% ± 1.08%) compared to the complete pancreatic enzyme digestion method (83.2% ± 5.16%).
- Statistical analysis confirmed a significant difference (P<0.005) in Müller cell purity between the two methods.
Conclusions:
- The repeated incomplete pancreatic enzyme digestion method is more efficient for obtaining high-purity Müller glial cells.
- This novel method offers an improved approach for Müller cell isolation in research settings.
