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Updated: Mar 7, 2026

Isolation of Primary Mouse Retinal Glial Müller Cells
Published on: August 30, 2024
Mitochondrial function in Müller cells - Does it matter?
Anne Katrine Toft-Kehler1, Dorte Marie Skytt1, Alicia Svare2
1Eye Translational Research Unit, Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen O, Denmark; Department of Neuroscience and Pharmacology, University of Copenhagen, Copenhagen N, Denmark.
Abstract:
Growing evidence suggests that mitochondrial dysfunction might play a key role in the pathogenesis of age-related neurodegenerative inner retinal diseases such as diabetic retinopathy and glaucoma. Therefore, the present review provides a perspective on the impact of functional mitochondria in the most predominant glial cells of the retina, the Müller cells. Müller cells span the entire thickness of the neuroretina and are in close proximity to retinal cells including the retinal neurons that provides visual signaling to the brain. Among multiple functions, Müller cells are responsible for the removal of neurotransmitters, buffering potassium, and providing neurons with essential metabolites. Thus, Müller cells are responsible for a stable metabolic dialogue in the inner retina and their crucial role in supporting retinal neurons is indisputable. Müller cell functions require considerable energy production and previous literature has primarily emphasized glycolysis as the main energy provider. However, recent studies highlight the need of mitochondrial ATP production to upheld Müller cell functions. Therefore, the present review aims to provide an overview of the current evidence on the impact of mitochondrial functions in Müller cells.
Insights
Mitochondrial dysfunction contributes to neurodegenerative retinal diseases. This review highlights the critical role of functional mitochondria in Müller cells, essential for retinal neuron support and overall inner retinal health.
Area of Science:
- Neuroscience
- Ophthalmology
- Cell Biology
Background:
- Mitochondrial dysfunction is implicated in age-related neurodegenerative inner retinal diseases like diabetic retinopathy and glaucoma.
- Müller cells, the predominant glial cells in the retina, are crucial for maintaining the inner retinal microenvironment and supporting neuronal function.
Purpose of the Study:
- To review the impact of mitochondrial function within Müller cells.
- To emphasize the importance of mitochondrial ATP production for Müller cell functions, challenging the traditional focus on glycolysis.
Main Methods:
- Literature review of current evidence on mitochondrial function in Müller cells.
- Analysis of the role of Müller cells in retinal homeostasis and neuroprotection.
Main Results:
- Müller cells require significant energy for their supportive functions, including neurotransmitter removal and metabolic support.
- Recent research underscores the necessity of mitochondrial ATP generation for optimal Müller cell activity.
Conclusions:
- Functional mitochondria are vital for Müller cell health and their ability to support retinal neurons.
- Understanding mitochondrial roles in Müller cells is key to addressing neurodegenerative retinal diseases.
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