[Novel mechanism for retinal vascular diseases]

Area of Science:

• Ophthalmology
• Vascular Biology
• Stem Cell Biology

Context:

• Diabetic retinopathy (DR) and central retinal vein occlusion (CRVO) are leading causes of vision loss.
• Current treatments for retinal non-perfusion areas are invasive and destructive.
• Vascular endothelial growth factor (VEGF) plays a critical role in retinal vascular diseases.

Purpose:

• To investigate succinate as a therapeutic target for proliferative diabetic retinopathy (PDR).
• To evaluate the utility of laser speckle flowgraphy (LSFG) in assessing prognosis for CRVO.
• To explore novel re-vascularization strategies for retinal non-perfusion using induced pluripotent stem cells (iPSCs).

Summary:

• Succinate levels are elevated in PDR vitreous, suggesting a role in retinal angiogenesis and a potential positive feedback loop with VEGF.
• LSFG effectively evaluates retinal blood flow velocity in CRVO, identifying cases with poor prognosis after anti-VEGF therapy.
• A novel approach using iPSC-derived retinal organoids is being developed for re-vascularization therapy in non-perfused retina.

Impact:

• Identifies succinate as a novel therapeutic target for diabetic retinopathy.
• Highlights LSFG as a valuable tool for CRVO management and outcome prediction.
• Paves the way for innovative stem cell-based therapies to restore vision in retinal vascular diseases.