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Experimental Models for Study of Retinal Pigment Epithelial Physiology and Pathophysiology
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A model to study complement involvement in experimental retinal degeneration.

Camilla Mohlin1, Kerstin Sandholm1, Anders Kvanta2

  • 1a Linnaeus University Faculty of Health and Life Science , Linnaeus Center of Biomaterials Chemistry, Linnaeus University , Kalmar , Sweden.

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|February 14, 2018
PubMed
Summary
This summary is machine-generated.

This study developed a novel co-culture system to mimic retinal degeneration. The system activates the complement system (CS), offering a new tool for studying ocular diseases like diabetic retinopathy.

Keywords:
AMDRPEcomplement systemocular diseasesretina

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Area of Science:

  • Ocular immunology
  • Neuroscience
  • Cell biology

Background:

  • The complement system (CS) is implicated in ocular diseases such as diabetic retinopathy (DR), glaucoma, uveitis, and age-related macular degeneration (AMD).
  • Limited treatment options exist for many complex, degenerative eye conditions.

Purpose of the Study:

  • To develop a co-culture system that mimics the in vivo retinal degenerative process.
  • To investigate the role of the complement system in experimental neurodegenerative eye diseases.

Main Methods:

  • Co-culture of adult porcine retina with spontaneously arising human retinal pigment epithelial cells-19 (ARPE-19).

Main Results:

  • The co-culture system exhibited inflammatory activity, including microglial cell migration, gliosis, and cell death.
  • Complement system activation was observed, with increased C3a secretion.
  • Expression of CS components (C1q, C3, C4, C5b-9, C5a receptor) and secretion of CS regulators (C4BP, CFH, CFI) were detected.

Conclusions:

  • This co-culturing system serves as a valuable model for investigating the complement system's role in experimental neurodegenerative eye diseases.