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The complement system in sclera.

O Brawman-Mintzer1, B J Mondino, F J Mayer

  • 1Department of Ophthalmology, UCLA School of Medicine.

Investigative Ophthalmology & Visual Science
|November 1, 1988
PubMed
Summary
This summary is machine-generated.

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The sclera contains complement proteins, which are crucial for immune responses. Their molecular weight influences their activity, suggesting a role in scleritis pathogenesis.

Area of Science:

  • Immunology
  • Ocular Biology

Background:

  • The complement system is a critical part of innate immunity.
  • Scleritis is an inflammatory eye condition with complex pathogenesis.

Purpose of the Study:

  • To investigate the presence and functional activity of complement components within the sclera.
  • To explore the relationship between complement component molecular weight and hemolytic activity in scleral tissue.

Main Methods:

  • Scleral eluates were prepared from donor globes using phosphate-buffered saline.
  • Hemolytic assays were employed to quantify functional complement components C1-C6.
  • Radial immunodiffusion was used to measure Factor B and albumin levels.

Main Results:

  • Complement components C1-C6 were detected in scleral eluates.

Related Experiment Videos

  • Hemolytic activity varied with molecular weight: higher molecular weight components showed lower activity, and lower molecular weight components showed higher activity.
  • Factor B and albumin were also identified in the scleral eluates.

    • Conclusions:

    • The sclera harbors active complement components.
    • Molecular weight is a significant factor influencing complement activity in the sclera.
    • These findings suggest a potential role for complement activation via immune complexes in the pathogenesis of scleritis.