scholarly journals VEGF-R2/Caveolin-1 Pathway of Undifferentiated ARPE-19 Retina Cells: A Potential Target as Anti-VEGF-A Therapy in Wet AMD by Resvega, an Omega-3/Polyphenol Combination

2021 ◽  
Vol 22 (12) ◽  
pp. 6590
Author(s):  
Flavie Courtaut ◽  
Alessandra Scagliarini ◽  
Virginie Aires ◽  
Clarisse Cornebise ◽  
Jean-Paul Pais de Barros ◽  
...  
Keyword(s):  
Age Related Macular Degeneration ◽  
Gene Promoters ◽  
Vegf Receptors ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Caveolin 1 ◽  
Age Related ◽  
Chip Analysis ◽  
Wet Amd

Age-related macular degeneration (AMD) is one of the main causes of deterioration in vision in adults aged 55 and older. In spite of therapies, the progression of the disease is often observed without reverse vision quality. In the present study, we explored whether, in undifferentiated ARPE-19 retinal cells, a disruption of the VEGF receptors (VEGF-R)/caveolin-1 (Cav-1)/protein kinases pathway could be a target for counteracting VEGF secretion. We highlight that Resvega®, a combination of omega-3 fatty acids with an antioxidant, resveratrol, inhibits VEGF-A secretion in vitro by disrupting the dissociation of the VEGF-R2/Cav-1 complex into rafts and subsequently preventing MAPK activation. Moreover, DNA ChIP analysis reveals that this combination prevents the interaction between AP-1 and vegf-a and vegf-r2 gene promoters. By these pathways, Resvega could present a potential interest as nutritional complementation against AMD.

scholarly journals Predicting the retinal content in omega‐3 fatty acids for age‐related macular‐degeneration

2021 ◽  
Vol 11 (7) ◽  
Author(s):  
Niyazi Acar ◽  
Bénédicte M. J. Merle ◽  
Soufiane Ajana ◽  
Zhiguo He ◽  
Stéphane Grégoire ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Macular Degeneration ◽  
Age Related Macular Degeneration ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Age Related

scholarly journals RESVEGA, a Nutraceutical Omega-3/Resveratrol Supplementation, Reduces Angiogenesis in a Preclinical Mouse Model of Choroidal Neovascularization

2021 ◽  
Vol 22 (20) ◽  
pp. 11023
Author(s):  
Flavie Courtaut ◽  
Virginie Aires ◽  
Niyazi Acar ◽  
Lionel Bretillon ◽  
Ida Chiara Guerrera ◽  
...  
Keyword(s):  
Choroidal Neovascularization ◽  
Blind Spot ◽  
Pleiotropic Effect ◽  
Resistance Mechanisms ◽  
Age Related Macular Degeneration ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Proteomic Approach ◽  
Age Related

Age-related macular degeneration (AMD) is an eye disease that is characterized by damage to the central part of the retina, the macula, and that affects millions of people worldwide. At an advanced stage, a blind spot grows in the center of vision, severely handicapping patients with this degenerative condition. Despite therapeutic advances thanks to the use of anti-VEGF, many resistance mechanisms have been found to accentuate the visual deficit. In the present study, we explored whether supplementation with Resvega®, a nutraceutical formulation composed of omega-3 fatty acids and resveratrol, a well-known polyphenol in grapes, was able to counteract laser-induced choroidal neovascularization (CNV) in mice. We highlight that Resvega® significantly reduced CNV in mice compared with supplementations containing omega-3 or resveratrol alone. Moreover, a proteomic approach confirmed that Resvega® could counteract the progression of AMD through a pleiotropic effect targeting key regulators of neoangiogenesis in retina cells in vivo. These events were associated with an accumulation of resveratrol metabolites within the retina. Therefore, a supplementation of omega-3/resveratrol could improve the management or slow the progression of AMD in patients with this condition.

scholarly journals Omega-3 Fatty Acids and Age-Related Macular Degeneration

2015 ◽  
Vol 55 (2) ◽  
pp. 62-69 ◽  
Author(s):  
Eric H. Souied ◽  
Tariq Aslam ◽  
Alfredo Garcia-Layana ◽  
Frank G. Holz ◽  
Anita Leys ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Macular Degeneration ◽  
Age Related Macular Degeneration ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Age Related

Effect of 2-year nutritional supplementation on progression of age-related macular degeneration

2019 ◽  
Vol 30 (2) ◽  
pp. 376-381
Author(s):  
Alberto Piatti ◽  
Antonella Croce ◽  
Danilo Mazzacane ◽  
Giovanni Traina ◽  
Lina Ambrosino ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Visual Acuity ◽  
Macular Degeneration ◽  
Age Related Macular Degeneration ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Exact Test ◽  
Corrected Visual Acuity ◽  
Age Related ◽  
Best Corrected Visual Acuity

Purpose: To examine the effect of a long-term nutritional supplementation on age-related macular degeneration progression. Methods: In this prospective, double-blind, placebo-controlled study, 80 patients with intermediate age-related macular degeneration were randomized (2:1) to receive 1 tablet/day of a nutritional supplement containing a mixture of carotenoids, vitamins and omega-3 fatty acids or placebo. Age-related macular degeneration progression assessed by digital fundus photography (primary outcome) and best-corrected visual acuity were evaluated. Differences between arms were tested using chi-square test or Fisher’s exact test. Results: Seventy-four patients completed the follow-up at 24 months (48 in the treated arm and 26 in the placebo arm). An age-related macular degeneration progression was observed in the 2.1% of patients of the treated arm and in the 15.4% of patients in the placebo arm (p = 0.05, Fisher’s exact test). Best-corrected visual acuity data alone were not statistically significant among groups. Conclusion: A clinically meaningful stabilization of intermediate age-related macular degeneration over a period of 2 years may be obtained by treating patients with a mixture of carotenoids, vitamins and omega-3 fatty acids.

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