Related Experiment Video
Updated: May 31, 2026
Monitoring Dynamic Growth of Retinal Vessels in Oxygen-Induced Retinopathy Mouse Model
Published on: April 2, 2021
[Epidemiology and pathophysiology of retinopathy of prematurity]
E Kermorvant-Duchemin1, F Sennlaub, F Behar-Cohen
1Service de Réanimation Pédiatrique et Néonatale, Hôpital Necker-Enfants Malades, 149 rue de Sèvres 75015 Paris, France. elsa.kermorvant@nck.aphp.fr
Insights
Retinopathy of prematurity (ROP) involves abnormal retinal vascular development in premature infants, driven by both oxygen-dependent and independent factors. New research explores metabolite and lipid signaling for ROP therapeutic strategies.
Area of Science:
- Ophthalmology
- Neonatology
- Vascular Biology
Context:
- Retinopathy of prematurity (ROP) is a leading cause of visual impairment in premature infants.
- ROP pathogenesis involves disrupted retinal vascular development, microvascular degeneration, and hypoxic neovascularization.
Purpose:
- To elucidate the multifactorial mechanisms underlying ROP, including oxygen-dependent and independent pathways.
- To identify novel therapeutic targets for ROP based on emerging signaling pathways.
Summary:
- ROP is characterized by arrested retinal vascular development and subsequent abnormal neovascularization.
- Oxygen-dependent mechanisms include reactive oxygen species and suppressed vascular endothelial growth factor (VEGF).
- Oxygen-independent mechanisms involve deficits in IGF-1/IGFBP3, while proliferative phases are driven by growth factor increases.
- Novel therapeutic avenues involve metabolite and inflammatory lipid signaling pathways for vascular repair.
Impact:
- Understanding ROP's complex etiology provides a foundation for developing targeted interventions.
- Identification of new signaling pathways offers promising therapeutic strategies to prevent or treat ROP-related visual impairment.
Abstract:
Retinopathy of prematurity (ROP) is a major cause of visual impairment in premature infants. It is characterized by an arrest in normal retinal vascular development associated with microvascular degeneration, followed by an abnormal hypoxiainduced neovascularization. Recent studies point out that ROP is a multifactorial disease, implicating both oxygen-dependent and oxygen-independent mechanisms. Oxygen-dependent factors leading to microvascular degeneration include generation of reactive oxygen species and suppression of specific oxygen-regulated vascular survival factors, such as vascular endothelial growth factor (VEGF) and erythropoietin. The other major mechanism for the initial capillary loss is oxygen-independent and implicates a deficit in growth factor IGF-1/IGFBP3. The proliferative, second phase of ROP is triggered by increases in vascular growth factors concentrations, in an attempt to compensate for the hypoxic retina. Novel signaling pathways for vascular repair, implicating both metabolite signaling and inflammatory lipids signaling, represent new therapeutic avenues for ROP.
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