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Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...

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Related Experiment Video

Updated: May 23, 2026

In Vivo Dynamics of Retinal Microglial Activation During Neurodegeneration: Confocal Ophthalmoscopic Imaging and Cell Morphometry in Mouse Glaucoma
12:48

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

Published on: May 11, 2015

IL-1β-mediated interaction between Müller cells and microglia through CXCL1/5-CXCR2 aggravates visual dysfunction in

Xiaoyu Xin1,2, Luying Han1,2, Yuntao Qu1,2

  • 1Department of Clinical Research and Translational Medicine, Institute of Neuroscience, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.

Journal of Neuroinflammation
|May 22, 2026
PubMed
Summary

Interleukin-1β (IL-1β) amplifies inflammation in glaucoma by promoting Müller cell and microglia interaction, leading to retinal ganglion cell (RGC) death. Inhibiting this interaction protects RGCs and vision.

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

  • Ophthalmology
  • Neuroscience
  • Immunology

Background:

  • Glaucoma involves retinal ganglion cell (RGC) death and vision loss.
  • Glial cell interactions, particularly involving Müller cells and microglia, exacerbate RGC injury through inflammation.
  • The precise mechanisms of Müller cell and microglia interaction in glaucoma are not fully understood.

Purpose of the Study:

  • To investigate the role of interleukin-1β (IL-1β) in mediating Müller cell and microglia interactions in glaucoma.
  • To elucidate the molecular mechanisms underlying IL-1β-induced glial cell crosstalk and its impact on RGCs.

Main Methods:

  • Established a chronic ocular hypertension (COH) mouse model.
  • Utilized Western blotting, qPCR, immunofluorescence, co-culture, RNA sequencing, OCT imaging, and flash visually evoked potentials.
  • Examined retinal changes and visual function following IL-1β stimulation and targeted inhibition.

Main Results:

  • IL-1β activated Müller cells and microglia, increasing microglial recruitment.
  • Activated Müller cells released CXCL1/5 via NF-κB and p38 MAPK pathways, activating microglia through CXCR2.
  • This glial activation increased pro-inflammatory factors, causing RGC death and vision decline.
  • Inhibiting the CXCL1/5-CXCR2 axis protected RGCs and improved visual function.

Conclusions:

  • IL-1β drives a positive feedback loop in glial cell interactions, amplifying retinal inflammation and RGC damage.
  • Targeting the Müller cell-microglia interaction axis offers a potential therapeutic strategy for glaucoma.
  • Intervention against glial cell crosstalk effectively protects RGCs and preserves visual function.