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Updated: May 20, 2025
Toxicity Screens in Human Retinal Organoids for Pharmaceutical Discovery
Published on: March 4, 2021
Preclinical Retinal Disease Models: Applications in Drug Development and Translational Research
Sudha Priya Soundara Pandi1, Hanagh Winter1, Madeleine R Smith1
1Medinect Bioservices Ltd., Belfast BT7 1NF, UK.
Abstract:
Retinal models play a pivotal role in translational drug development, bridging preclinical research and therapeutic applications for both ocular and systemic diseases. This review highlights the retina as an ideal organ for studying advanced therapies, thanks to its immune privilege, vascular and neuronal networks, accessibility, and advanced imaging capabilities. Preclinical retinal disease models offer unparalleled insights into inflammation, angiogenesis, fibrosis, and hypoxia, utilizing clinically translatable bioimaging tools like fundoscopy, optical coherence tomography, confocal scanning laser ophthalmoscopy, fluorescein angiography, optokinetic tracking, and electroretinography. These models have driven innovations in anti-inflammatory, anti-angiogenic, and neuroprotective strategies, with broader implications for systemic diseases such as rheumatoid arthritis, Alzheimer's, and fibrosis-related conditions. By emphasizing the integration of the 3Rs principles and novel imaging modalities, this review highlights how retinal research not only enhances therapeutic precision but also minimizes ethical concerns, paving the way for more predictive and human-relevant approaches in drug development.
Insights
Retinal models are crucial for developing new ocular and systemic therapies. Advanced imaging and preclinical models improve drug development precision and ethical considerations.
Area of Science:
- Ophthalmology and Translational Medicine
- Preclinical Drug Development Models
Background:
- The retina is an ideal organ for advanced therapy research due to immune privilege, vascular/neuronal networks, accessibility, and imaging capabilities.
- Preclinical retinal models provide insights into inflammation, angiogenesis, fibrosis, and hypoxia.
Purpose of the Study:
- To review the role of retinal models in translational drug development.
- To highlight the utility of the retina for studying advanced therapies.
- To emphasize the integration of 3Rs principles and novel imaging.
Main Methods:
- Review of preclinical retinal disease models.
- Utilizing clinically translatable bioimaging tools (fundoscopy, OCT, CSLO, FA, OKT, ERG).
- Focus on innovations in anti-inflammatory, anti-angiogenic, and neuroprotective strategies.
Main Results:
- Retinal models offer insights into ocular and systemic diseases like rheumatoid arthritis, Alzheimer's, and fibrosis.
- Clinically translatable imaging tools enhance understanding of disease mechanisms.
- These models drive therapeutic innovations and have broader systemic implications.
Conclusions:
- Retinal models are pivotal for advancing drug development for ocular and systemic conditions.
- Integration of 3Rs principles and advanced imaging enhances therapeutic precision and ethical research.
- Retinal research paves the way for more predictive and human-relevant drug development approaches.
