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Related Concept Videos

Glaucoma: Overview01:25

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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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In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
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Autoimmune Disorders01:29

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Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
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Ultrasound Cyclo Plasty in Eyes with Glaucoma
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[Autoimmunity and glaucoma].

K Bell1, S Funke2, F H Grus2

  • 1Experimentelle Ophthalmologie, Augenklinik der Universitätsmedizin Mainz, Langenbeckstraße 1, 55131, Mainz, Deutschland. kbell@eye-research.org.

Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
|February 11, 2018
PubMed
Summary
This summary is machine-generated.

Glaucoma involves more than high intraocular pressure (IOP); immune system changes, particularly autoantibodies, are key. Some autoantibodies show neuroprotective effects, offering potential for early glaucoma detection and novel therapies.

Keywords:
AutoantibodiesEye diseasesMass spectrometryNeuroprotective agentsProteomics

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Area of Science:

  • Ophthalmology
  • Immunology
  • Proteomics

Background:

  • Elevated intraocular pressure (IOP) is a primary glaucoma risk factor, but immune system alterations, specifically autoantibodies, are increasingly recognized.
  • Studies show altered autoantibody titers in glaucoma patients, with some increasing and others decreasing compared to healthy individuals.
  • Certain autoantibodies with reduced titers in glaucoma patients exhibit neuroprotective properties for retinal ganglion cells.

Purpose of the Study:

  • To investigate the role of autoantibodies in glaucoma pathogenesis and their potential as diagnostic and therapeutic targets.
  • To explore the neuroprotective mechanisms of specific autoantibodies found at lower levels in glaucoma patients.
  • To leverage "omics"-based analyses for a deeper understanding of immune system changes in glaucoma.

Main Methods:

  • Analysis of autoantibody alterations in glaucoma patients versus healthy controls.
  • In vitro and in vivo studies to assess the neuroprotective effects of specific autoantibodies (e.g., anti-14-3-3, anti-γ‑/α-synuclein, anti-GFAP).
  • Application of "omics"-based techniques, including mass spectrometry-based proteomics, on various ocular samples (tears, aqueous humor, serum, retina).

Main Results:

  • Identified specific autoantibodies with altered abundance in glaucoma patients.
  • Demonstrated neuroprotective effects of certain autoantibodies (e.g., anti-14-3-3, anti-γ‑/α-synuclein, anti-GFAP) on retinal ganglion cells.
  • Highlighted the utility of "omics" approaches for detailed analysis of antibody changes in small patient-derived samples.

Conclusions:

  • Autoantibody profiles in glaucoma patients offer potential for early detection and therapeutic intervention.
  • Neuroprotective autoantibodies represent a promising avenue for developing novel glaucoma treatments.
  • Mass spectrometry-based proteomic analysis of ocular samples is crucial for elucidating glaucoma's molecular mechanisms and improving patient care.