ArticlePloS one2023
Involvement of Angiopoietin 2 and vascular endothelial growth factor in uveitis.
Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- IMPACT OF FARICIMAB VERSUS AFLIBERCEPT ON EPIRETINAL MEMBRANE FORMATION OVER 2 YEARS IN PATIENTS WITH DIABETIC MACULAR EDEMA IN THE PHASE 3 YOSEMITE AND RHINE TRIALS.Retina (Philadelphia, Pa.) · 2025Trial
- Factors associated with the avoidance of glaucoma surgery in secondary glaucoma due to ocular inflammatory disease.Journal of ophthalmic inflammation and infection · 2025Article
- Associations of inflammatory markers with post-acute clinical findings among survivors of Ebola virus disease with and without viral RNA shedding in the semen in Liberia: a nested case-control study.The Lancet. Microbe · 2025Article
- Recurrent uveitic macular edema managed with intravitreal faricimab injection.Journal of ophthalmic inflammation and infection · 2025Article
- Insights to Ang/Tie signaling pathway: another rosy dawn for treating retinal and choroidal vascular diseases.Journal of translational medicine · 2024Review
- A Network Biology Framework for Exploring Molecular Mechanisms in Cystoid Macular Edema.Romanian journal of ophthalmologyReview
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Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeAngiopoietin (Ang) 2 is released from vascular endothelial cells by the stimulation of vascular endothelial growth factor (VEGF)A. Ang2 increases the expression of leukocyte adhesion molecules on endothelial cells via nuclear factor κB. The aim of this study was to evaluate the effects of Ang2 and VEGFA on ocular autoimmune inflammation.
methodsWe measured the concentrations of Ang2 and VEGFA in vitreous samples among patients with uveitis. Vitreous samples were collected from 16 patients with idiopathic uveitis (uveitis group) and 16 patients with non-inflammatory eye disease (control group). Experimental autoimmune uveoretinitis (EAU) was induced in B10.BR mice with a human interphotoreceptor retinoid-binding protein-derived peptide. The retinochoroidal tissues of the EAU mice were removed, and the mRNA levels of Ang2 and VEGFA were examined. EAU mice treated with anti-Ang2, anti-VEGFA, a combination of anti-Ang2 and anti-VEGFA, anti-Ang2/VEGFA bispecific, or IgG control antibodies were clinically and histopathologically evaluated.
resultsThe protein levels of Ang2 and VEGFA were significantly higher in the vitreous samples of patients with uveitis than in controls (P<0.05). The retinochoroidal mRNA levels of Ang2 and VEGFA were significantly upregulated in EAU mice compared to controls (n = 6, P<0.05). Although there was no significant difference, treatment with anti-VEGFA antibody reduced the clinical and histopathological scores. However, treatment with anti-Ang2 antibody reduced the clinical and histopathological scores (n = 18-20, P<0.05). Furthermore, these scores were further decreased when treated by inhibiting both Ang2 and VEGFA.
conclusionsBased on these results, VEGFA and Ang2 were shown to be upregulated locally in the eye of both uveitis patients and models of uveitis. Dual inhibition of Ang2 and VEGFA is suggested to be a new therapeutic strategy for uveitis.
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