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Bilbao-Malavé V, González-Zamora J, de la Puente M, Recalde S, Fernandez-Robredo P, Hernandez M, Layana AG, Saenz de Viteri M. Mitochondrial Dysfunction and Endoplasmic Reticulum Stress in Age Related Macular Degeneration, Role in Pathophysiology, and Possible New Therapeutic Strategies. Antioxidants (Basel) 2021; 10:antiox10081170. [PMID: 34439418 PMCID: PMC8388889 DOI: 10.3390/antiox10081170] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/14/2021] [Accepted: 07/20/2021] [Indexed: 02/07/2023] Open
Abstract
Age related macular degeneration (AMD) is the main cause of legal blindness in developed countries. It is a multifactorial disease in which a combination of genetic and environmental factors contributes to increased risk of developing this vision-incapacitating condition. Oxidative stress plays a central role in the pathophysiology of AMD and recent publications have highlighted the importance of mitochondrial dysfunction and endoplasmic reticulum stress in this disease. Although treatment with vascular endothelium growth factor inhibitors have decreased the risk of blindness in patients with the exudative form of AMD, the search for new therapeutic options continues to prevent the loss of photoreceptors and retinal pigment epithelium cells, characteristic of late stage AMD. In this review, we explain how mitochondrial dysfunction and endoplasmic reticulum stress participate in AMD pathogenesis. We also discuss a role of several antioxidants (bile acids, resveratrol, melatonin, humanin, and coenzyme Q10) in amelioration of AMD pathology.
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Affiliation(s)
- Valentina Bilbao-Malavé
- Department of Opthalmology, Clínica Universidad de Navarra, 31008 Pamplona, Spain; (V.B.-M.); (J.G.-Z.); (M.d.l.P.); (A.G.L.)
| | - Jorge González-Zamora
- Department of Opthalmology, Clínica Universidad de Navarra, 31008 Pamplona, Spain; (V.B.-M.); (J.G.-Z.); (M.d.l.P.); (A.G.L.)
| | - Miriam de la Puente
- Department of Opthalmology, Clínica Universidad de Navarra, 31008 Pamplona, Spain; (V.B.-M.); (J.G.-Z.); (M.d.l.P.); (A.G.L.)
| | - Sergio Recalde
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (P.F.-R.); (M.H.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
- Red Temática de Investigación Cooperativa en Salud: ‘Prevention, Early Detection, and Treatment of the Prevalent Degenerative and Chronic Ocular Pathology’ from (RD16/0008/0011), Ministerio de Ciencia, Innovación y Universidades, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Patricia Fernandez-Robredo
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (P.F.-R.); (M.H.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
- Red Temática de Investigación Cooperativa en Salud: ‘Prevention, Early Detection, and Treatment of the Prevalent Degenerative and Chronic Ocular Pathology’ from (RD16/0008/0011), Ministerio de Ciencia, Innovación y Universidades, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - María Hernandez
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (P.F.-R.); (M.H.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
- Red Temática de Investigación Cooperativa en Salud: ‘Prevention, Early Detection, and Treatment of the Prevalent Degenerative and Chronic Ocular Pathology’ from (RD16/0008/0011), Ministerio de Ciencia, Innovación y Universidades, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Alfredo Garcia Layana
- Department of Opthalmology, Clínica Universidad de Navarra, 31008 Pamplona, Spain; (V.B.-M.); (J.G.-Z.); (M.d.l.P.); (A.G.L.)
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (P.F.-R.); (M.H.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
- Red Temática de Investigación Cooperativa en Salud: ‘Prevention, Early Detection, and Treatment of the Prevalent Degenerative and Chronic Ocular Pathology’ from (RD16/0008/0011), Ministerio de Ciencia, Innovación y Universidades, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Manuel Saenz de Viteri
- Department of Opthalmology, Clínica Universidad de Navarra, 31008 Pamplona, Spain; (V.B.-M.); (J.G.-Z.); (M.d.l.P.); (A.G.L.)
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (P.F.-R.); (M.H.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
- Red Temática de Investigación Cooperativa en Salud: ‘Prevention, Early Detection, and Treatment of the Prevalent Degenerative and Chronic Ocular Pathology’ from (RD16/0008/0011), Ministerio de Ciencia, Innovación y Universidades, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-948-255-400
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Layana AG, Minnella AM, Garhöfer G, Aslam T, Holz FG, Leys A, Silva R, Delcourt C, Souied E, Seddon JM. Vitamin D and Age-Related Macular Degeneration. Nutrients 2017; 9:nu9101120. [PMID: 29027953 PMCID: PMC5691736 DOI: 10.3390/nu9101120] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/03/2017] [Accepted: 10/06/2017] [Indexed: 12/12/2022] Open
Abstract
In recent years, the relationship between vitamin D and health has received growing attention from the scientific and medical communities. Vitamin D deficiencies have been repeatedly associated with various acute and chronic diseases, including age-related macular degeneration (AMD). Its active metabolite, 1α,25-dihydoxy vitamin D, acts as a modulator of cell proliferation, differentiation and apoptosis, and cumulative data from experimental and observational studies suggest that relatively a lower vitamin D status could be a potential risk factor for the development of early and/or late AMD. Herein, we made a narrative review of the mechanisms linking a potential role of vitamin D with the current concepts of AMD pathophysiology.
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Affiliation(s)
| | - Angelo Maria Minnella
- Dipartimento di Scienze Otorinolaringoiatriche e Oftalmologiche, Universita' Cattolica del Sacro Cuore, Lgo F. Vito 1, 00168 Roma, Italy.
| | - Gerhard Garhöfer
- Department of Clinical Pharmacology, University of Vienna, 1090 Vienna, Austria.
| | - Tariq Aslam
- School of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK.
- Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, M13 9WL Manchester, and Heriot Watt University, Edinburgh EH14 4AS, UK.
| | - Frank G Holz
- Department of Ophthalmology, University of Bonn, D-53107 Bonn, Germany.
| | - Anita Leys
- Department of Ophthalmology, University Hospitals Leuven, 3000 Leuven, Belgium.
| | - Rufino Silva
- Faculty of Medicine, Institute for Biomedical Imaging and Life Sciences (IBILI), University of Coimbra, 3000-548 Coimbra, Portugal.
- Centro Hospitalar e Universitário de Coimbra (CHUC), Department of Ophthalmology, 3000-548 Coimbra, Portugal.
- Centro Hospitalar e Universitário de Coimbra (CHUC), Faculty of Medicine, Institute for Biomedical Imaging and Life Sciences (IBILI-FMUC), University of Coimbra, 3000-548 Coimbra, Portugal.
- Centro Hospitalar e Universitário de Coimbra (CHUC), Association for Innovation and Biomedical Research on Light and Image (AIBILI), 3000-548 Coimbra, Portugal.
| | - Cécile Delcourt
- University of Bordeaux, INSERM, Bordeaux Population Health Research Center, Team LEHA, UMR 1219, F-33000 Bordeaux, France.
| | - Eric Souied
- Hôpital Intercommunal de Créteil, University Paris Est, 94010 Créteil, France.
| | - Johanna M Seddon
- Department of Ophthalmology, Tufts University School of Medicine, Boston, MA 02111, USA.
- Ophthalmic Epidemiology and Genetics Service, Tufts Medical Center, Boston, MA 02111, USA.
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Martínez-Barricarte R, Goicoechea de Jorge E, Montes T, Layana AG, Rodríguez de Córdoba S. Lack of association between polymorphisms in C4b-binding protein and atypical haemolytic uraemic syndrome in the Spanish population. Clin Exp Immunol 2009; 155:59-64. [PMID: 19076829 DOI: 10.1111/j.1365-2249.2008.03798.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Dysregulation of the alternative pathway of complement activation, caused by mutations or polymorphisms in the genes encoding factor H, membrane co-factor protein, factor I or factor B, is associated strongly with predisposition to atypical haemolytic uraemic syndrome (aHUS). C4b-binding protein (C4BP), a major regulator of the classical pathway of complement activation, also has capacity to regulate the alternative pathway. Interestingly, the C4BP polymorphism p.Arg240His has been associated recently with predisposition to aHUS and the risk allele His240 showed decreased capacity to regulate the alternative pathway. Identification of novel aHUS predisposition factors has important implications for diagnosis and treatment in a significant number of aHUS patients; thus, we sought to replicate these association studies in an independent cohort of aHUS patients. In this study we show that the C4BP His240 allele corresponds to the C4BP*2 allele identified previously by isoelectric focusing in heterozygosis in 1.9-3.7% of unrelated Caucasians. Crucially, we found no differences between 102 unrelated Spanish aHUS patients and 128 healthy age-matched Spanish controls for the frequency of carriers of the His240 C4BP allele. This did not support an association between the p.Arg240His C4BP polymorphism and predisposition to aHUS in the Spanish population. In a similar study, we also failed to sustain an association between C4BP polymorphisms and predisposition to age-related macular degeneration, another disorder which is associated strongly with polymorphisms in factor H, and is thought to involve alternative pathway dysregulation.
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Affiliation(s)
- R Martínez-Barricarte
- Departmento de Fisiopatología Celular y Molecular, Centro de Investigaciones Biológicas and Ciber de Enfermedades Raras, Madrid, Spain
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Montañés JM, Pérez De Madrid DA, Layana AG, Gil JM, López MM. [Survey of the necessary follow-up examinations after uncomplicated phacoemulsification surgery]. Arch Soc Esp Oftalmol 2001; 75:321-6. [PMID: 11151169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
OBJECTIVE To evaluate which the minimum number of postoperative examinations after uncomplicated phacoemulsification cataract surgery is needed to assure an appropriate follow-up schedule. We evaluated the number of patients that were excluded from the postoperative follow-up schedule and their causes. METHODS A prospective study was performed on 120 eyes (106 patients), that were randomised in two groups: one with two follow-up visits (first day and one month) and another with three postoperative visits (first day, one week and one month). RESULTS Fifteen eyes (12.5%) were excluded from the postoperative visits regime: 11 cases (18.9%) in the group of two visits and 4 cases (6.45%) in the group of three visits. In 10 cases (8.33%) the patient excluded himself from the schedule. The most frequent causes were: doubts about the outdoor activity that could be done, trauma, or complaints about the topical medications. Only in 6 cases they came to the clinic. No further complications were detected in the group of 2 examinations as compared with the other group. CONCLUSIONS According to the number of patients who left the follow-up schedule as well as the number of complications observed, it appears that in most instances 2 postoperative examinations may be appropriate enough.
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Affiliation(s)
- J M Montañés
- Departamento de Oftalmología, Clínica Universitaria de Navarra, 31080 Pamplona, Spain.
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Piñon RM, Pastor JC, Saornil MA, Goldaracena MB, Layana AG, Gayoso MJ, Guisasola J. Intravitreal and subretinal proliferation induced by platelet-rich plasma injection in rabbits. Curr Eye Res 1992; 11:1047-55. [PMID: 1483335 DOI: 10.3109/02713689209015076] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We developed an experimental model of proliferative vitreoretinopathy (PVR) in albino rabbits by combining some factors suspected of causing the disease. Sixty nine eyes divided into six groups served as controls (Groups C 1-6). Forty nine eyes were divided into four experimental groups (Groups E 1-4). Group E1 (n = 12) was injected with 0.15 ml of platelet-rich plasma. In addition, Groups E2 (n = 12) and E3 (n = 12) underwent cryotherapy or vitrectomy. Group E4 (n = 13) underwent both procedures. Seven of the 13 Group 4 experimental eyes developed total retinal detachment and giant holes. None of the other groups developed more than two total retinal detachments or giant holes (P < 0.05). Light and electron microscopy showed intravitreal or preretinal proliferation composed of fibroblast-like cells. Retroretinal membranes appeared only in Group E4 eyes, composed of elongated cells with oval nuclei and abundant organelles in the cytoplasm. We believe these lesions mimic human PVR more closely than other models previously developed.
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Affiliation(s)
- R M Piñon
- Instituto de Oftalmobiologia Aplicada, Facultad de Medicina, Universidad de Valladolid, Spain
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