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Related Experiment Video

Updated: May 1, 2026

In Vivo Dynamics of Retinal Microglial Activation During Neurodegeneration: Confocal Ophthalmoscopic Imaging and Cell Morphometry in Mouse Glaucoma

In Vivo Dynamics of Retinal Microglial Activation During Neurodegeneration: Confocal Ophthalmoscopic Imaging and Cell Morphometry in Mouse Glaucoma

Published on: May 11, 2015

Microglia in the aging retina.

Marcus Karlstetter¹, Thomas Langmann

¹Department of Ophthalmology, University of Cologne, Kerpener Straße 62, D-50924, Cologne, Germany, marcus.karlstetter@uk-koeln.de.

Advances in Experimental Medicine and Biology

|March 26, 2014

Summary

This summary is machine-generated.

In aging retinas, microglia may become dysfunctional, losing protective roles and promoting inflammation. This malfunction could drive age-related macular degeneration (AMD) and other retinal degenerations.

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Last Updated: May 1, 2026

In Vivo Dynamics of Retinal Microglial Activation During Neurodegeneration: Confocal Ophthalmoscopic Imaging and Cell Morphometry in Mouse Glaucoma

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Immunofluorescence Staining Using IBA1 and TMEM119 for Microglial Density, Morphology and Peripheral Myeloid Cell Infiltration Analysis in Mouse Brain

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Published on: October 27, 2019

Area of Science:

Ophthalmology
Immunology
Neuroscience

Background:

Microglial cells are innate immune cells in the retina, surveying and responding to damage.
Microglial roles in monogenic retinal disorders are known, but their contribution to aging retinal disorders like AMD is unclear.
Evidence suggests microglia may not just react to damage but actively contribute to aging retinal disease.

Purpose of the Study:

To investigate the role of microglial cells in the onset and progression of retinal aging disorders, particularly age-related macular degeneration (AMD).
To explore the concept that aging microglia may transform into a dysfunctional, dystrophic state.

Main Methods:

Analysis of aging rodent and human retinal tissues.
Examination of microglial cell characteristics and functions in aged retinas.

Main Results:

Aging microglia may enter a dystrophic state, losing neuroprotective functions.
This microglial dysfunction can lead to a chronic inflammatory environment in the retina.

Conclusions:

Malfunctioning aging microglia can initiate and exacerbate retinal degeneration.
Microglial cell behavior is a critical factor in the pathogenesis of age-related retinal disorders like AMD.