Müller glia are the principal glial cells of the retina, functioning as the primary support cells for retinal neurons including photoreceptors, bipolar cells, and ganglion cells[1]. These radial glial cells span the entire thickness of the retina, from the outer limiting membrane (adjacent to photoreceptor inner segments) to the inner limiting membrane (facing the vitreous body)[2].
| Taxonomy | ID | Name / Label |
|---|---|---|
| Cell Ontology (CL) | CL:0000636 | Mueller cell |
Müller cells exhibit a distinctive morphology:
This unique architecture allows Müller glia to interact with virtually all retinal cell types and participate in both structural and metabolic support[3].
In glaucoma, Müller glia undergo reactive gliosis, initially protective but potentially harmful when chronic. They upregulate glial fibrillary acidic protein (GFAP) and may contribute to retinal ganglion cell death through inflammation[4].
Metabolic dysfunction in Müller glia is a hallmark of diabetic retinopathy. Hyperglycemia leads to:
In degenerative conditions, Müller glia can undergo dedifferentiation and proliferation, attempting to replace lost neurons. This regenerative capacity is limited in mammals but more robust in fish and amphibians[5].
Müller glia have emerged as a target for therapeutic intervention:
Recent studies have explored induced Müller glia to dedifferentiate and become photoreceptor precursors. Key approaches include:
Müller glia-derived factors in vitreous and aqueous humor may serve as biomarkers for retinal disease progression:
](/diseases/retina---retinal-structure-and-function
--neuroinflammation---inflammatory-processes-in-neurodegeneration
--glial-cells---overview-of-glial-cell-types)## External Links
Müller glia: Characteristic and possible functions in the retina. Experimental Eye Research. 2020. ↩︎
Müller glia cell biology. Progress in Retinal and Eye Research. 2020. ↩︎
Retinal ganglion cell death. Investigative Ophthalmology & Visual Science. 2020. ↩︎
Glaucoma and Müller glia. Experimental Eye Research. 2019. ↩︎
Müller glia regeneration. Neurobiology. 2020. ↩︎