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Related Concept Videos

Complement System01:27

Complement System

The complement system is a group of approximately 20 plasma proteins that strengthen the body's defenses against infections through opsonization, inflammation, and cell lysis. Opsonization involves coating pathogens with complement proteins, making them more recognizable and facilitating phagocyte engulfment. Certain complement proteins induce inflammation that attracts immune cells to the site of infection. Cell lysis involves the destruction of pathogens through the formation of a membrane...
Microbiome of the Eye01:22

Microbiome of the Eye

The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...
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...
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
Antibody Actions01:26

Antibody Actions

Antibodies, or immunoglobulins, are critical players in the immune system's arsenal against invading pathogens. Produced by B cells and plasma cells, their primary role is to detect and bind to specific antigens, molecules found on the surface of pathogens like bacteria or viruses. Beyond antigen recognition, antibodies perform several vital functions that contribute to immune defense.
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...

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Conjunctival Commensal Isolation and Identification in Mice
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Conjunctival Commensal Isolation and Identification in Mice

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The role of complement in ocular pathology.

Nalini S Bora1, Purushottam Jha, Puran S Bora

  • 1Department of Ophthalmology, Jones Eye Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Mail slot 523, Little Rock, AR 72205, USA. nbora@uams.edu

Seminars in Immunopathology
|February 27, 2008
PubMed
Summary

The eye

Area of Science:

  • Ocular immunology and complement biology.

Background:

  • The complement system and its regulatory proteins are present in the healthy human and rodent eye.
  • Complement activation and regulation are implicated in ocular diseases like keratitis, uveitis, and age-related macular degeneration (AMD).
  • Genetic variations in complement components are linked to AMD.

Purpose of the Study:

  • To explore the role of the complement system in ocular health and disease.
  • To review the therapeutic potential of complement regulatory proteins for ocular conditions.

Main Methods:

  • Review of existing literature on complement system function in the eye.
  • Analysis of studies investigating complement regulatory proteins in animal models of ocular disease.

Main Results:

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Digestion of Whole Mouse Eyes for Multi-Parameter Flow Cytometric Analysis of Mononuclear Phagocytes

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Last Updated: Jul 7, 2026

Conjunctival Commensal Isolation and Identification in Mice
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Induction of Ocular Surface Inflammation and Collection of Involved Tissues
06:38

Induction of Ocular Surface Inflammation and Collection of Involved Tissues

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Digestion of Whole Mouse Eyes for Multi-Parameter Flow Cytometric Analysis of Mononuclear Phagocytes
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Digestion of Whole Mouse Eyes for Multi-Parameter Flow Cytometric Analysis of Mononuclear Phagocytes

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  • The complement system is active in the eye and its dysregulation contributes to ocular pathologies.
  • Animal models show promise for treating ocular diseases using recombinant complement regulatory proteins.

Conclusions:

  • Complement system dysregulation is a key factor in several serious eye diseases.
  • Recombinant complement regulatory proteins represent a potential future therapeutic strategy for treating keratitis, uveitis, and AMD.