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Purpose <p>The aspiration of this review is to discuss the intricate development of Müller glial cells (MGCs) and their indispensable neuroprotective and regenerative roles, as well as novel avenues of treatment for retinal neurodegenerative diseases. MGCs are the principal radial glial cells of the vertebrate retina, extending from what is composed of a characteristic funnel-shaped morphology spanning throughout the retinal thickness. Their cell bodies are in the inner nuclear layer (INL), and their processes span from the outer limiting membrane to the inner limiting membrane, where they strongly associate with neurons, blood vessels, and the extracellular matrix across all layers of retinal structure. These cells preserve ionic and water homeostasis, control neurotransmitter uptake, and participate in constructing the blood retinal barrier (BRB), as well as deliver crucial metabolic help to neurons by means of the glutamate-glutamine cycle, thus excluding excitotoxic injury.</p> Methods <p>First, we analysed the molecular processes underlying MGCs activation: pro-inflammatory molecules, Reactive oxygen species (ROS), and survival pathways. Special notice was made of changes in gene expression upon activation and the recrudescence of embryonic developmental programs that permit cell-cycle re-entry and retinal regeneration. Systematic searches of Google Scholar and PubMed to find relevant literature.</p> Results <p>Upon activation, Müller’s glia, a type of retinal support cell, commence the expression of protective genes, such as Zfp36, Mt1, and Slc14a1. Some creatures could regenerate; however, in mammals, this capacity is limited, which is particularly evident in the retina, where, despite the activation of Müller’s glia, full regeneration of damaged photoreceptors is not achieved. MGCs produces retinal progenitors that assist photoreceptors and interneurons while maintaining retinal integrity. MGCs contain progenitor cells that can differentiate into both neurons and other retinal cell types. Molecular targets for retinal therapeutics that utilize MGCs include pathways that regulate inflammation and oxidative stress.</p> Conclusion <p>Müller glial cells are essential for maintaining retinal health, safeguarding neurons, and facilitating their regeneration. Targeted molecular therapy is addressed as a promising strategy for retinal neurodegenerative diseases, using their regenerative and protective potential.</p>

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Intriguing roles of Müller glia: a special emphasis on the development and pathology of Müller glia cells in the retina

  • 期刊论文

  • 发表日期：

    2026年5月9日

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  • Priti Gupta,
  • T. S. Gopenath,
  • Sandeep Kumar Singh

摘要

Purpose

The aspiration of this review is to discuss the intricate development of Müller glial cells (MGCs) and their indispensable neuroprotective and regenerative roles, as well as novel avenues of treatment for retinal neurodegenerative diseases. MGCs are the principal radial glial cells of the vertebrate retina, extending from what is composed of a characteristic funnel-shaped morphology spanning throughout the retinal thickness. Their cell bodies are in the inner nuclear layer (INL), and their processes span from the outer limiting membrane to the inner limiting membrane, where they strongly associate with neurons, blood vessels, and the extracellular matrix across all layers of retinal structure. These cells preserve ionic and water homeostasis, control neurotransmitter uptake, and participate in constructing the blood retinal barrier (BRB), as well as deliver crucial metabolic help to neurons by means of the glutamate-glutamine cycle, thus excluding excitotoxic injury.

Methods

First, we analysed the molecular processes underlying MGCs activation: pro-inflammatory molecules, Reactive oxygen species (ROS), and survival pathways. Special notice was made of changes in gene expression upon activation and the recrudescence of embryonic developmental programs that permit cell-cycle re-entry and retinal regeneration. Systematic searches of Google Scholar and PubMed to find relevant literature.

Results

Upon activation, Müller’s glia, a type of retinal support cell, commence the expression of protective genes, such as Zfp36, Mt1, and Slc14a1. Some creatures could regenerate; however, in mammals, this capacity is limited, which is particularly evident in the retina, where, despite the activation of Müller’s glia, full regeneration of damaged photoreceptors is not achieved. MGCs produces retinal progenitors that assist photoreceptors and interneurons while maintaining retinal integrity. MGCs contain progenitor cells that can differentiate into both neurons and other retinal cell types. Molecular targets for retinal therapeutics that utilize MGCs include pathways that regulate inflammation and oxidative stress.

Conclusion

Müller glial cells are essential for maintaining retinal health, safeguarding neurons, and facilitating their regeneration. Targeted molecular therapy is addressed as a promising strategy for retinal neurodegenerative diseases, using their regenerative and protective potential.