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Target intelligence / Profile preview
Retinal Pigment Epithelial Cell Tight Junctions (RPE Tight Junctions)
- Target
- RPE Tight Junctions
- Molecular classification
- Cell Junction, Multi-protein complex
01
Overview
Retinal pigment epithelial (RPE) cell tight junctions are essential molecular complexes that form the outer blood-retinal barrier (oBRB), a selectively permeable barrier at the interface between the neural retina and the choroid. They are composed of claudins, occludin, junctional adhesion molecules (JAMs), and zonula occludens (ZO) proteins, and their dynamic regulation ensures proper retinal environment maintenance crucial for vision health. Disruption impairs this protective role, leading directly to disease processes affecting vision quality.
- Other names
- Outer Blood-Retinal Barrier (oBRB)RPE barrierRPE intercellular junctions
02
Mechanism of action
Modulation of tight junction protein expression/localization; alteration of signaling pathways regulating TJ integrity
03
Biological functions
Barrier formationRegulation of paracellular transportMaintenance of retinal homeostasisCell polarityRegulation of cell proliferation
04
Disease associations
RetinopathiesAge-related macular degeneration (AMD)Diabetic retinopathyRetinal edemaInflammation
05
Safety considerations
Potential disruption of barrier function leading to retinal damageOff-target effects on other epithelial barriers
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