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[Blood-Retinal Barrier Drug Transport: Aiming to Develop Oral Administration for Retinal Diseases]
1Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama.
Summary
Understanding drug transport across the blood-retinal barrier (BRB) is crucial for developing oral therapies for retinal diseases. This review covers over 25 years of BRB transport research, including new cationic drug transport mechanisms.
Area of Science:
- Ophthalmology
- Pharmacology
- Physiology
Background:
- The blood-retinal barrier (BRB) comprises inner and outer components regulating substance transport between blood and neural retina.
- Understanding BRB drug transport is essential for effective oral pharmacotherapy of retinal diseases.
Purpose of the Study:
- To review over 25 years of research on blood-retinal barrier (BRB) transport.
- To highlight the evolution of in vitro and in vivo transport evaluation systems for the BRB.
- To discuss newly discovered BRB-specific cationic drug transport mechanisms.
Main Methods:
- Comprehensive literature review of BRB transport studies.
- Analysis of in vitro and in vivo methodologies for evaluating BRB transport.
- Synthesis of findings on drug transport mechanisms across the BRB.
Main Results:
- Significant advancements in understanding BRB transport mechanisms over the past 25+ years.
- Development and refinement of in vitro and in vivo models for BRB drug transport assessment.
- Identification of novel BRB-specific cationic drug transport pathways.
Conclusions:
- Continued research into BRB transport is vital for advancing retinal disease pharmacotherapy.
- Established and emerging transport systems offer targets for novel drug delivery strategies.
- Understanding specific transporter functions, like cationic mechanisms, can optimize oral drug efficacy.
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