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Liu J, Copland DA, Clare AJ, Gorski M, Richards BT, Scott L, Theodoropoulou S, Greferath U, Cox K, Shi G, Bell OH, Ou K, Powell JLB, Wu J, Robles LM, Li Y, Nicholson LB, Coffey PJ, Fletcher EL, Guymer R, Radeke MJ, Heid IM, Hageman GS, Chan YK, Dick AD. Replenishing IRAK-M expression in retinal pigment epithelium attenuates outer retinal degeneration. Sci Transl Med 2024; 16:eadi4125. [PMID: 38838135 DOI: 10.1126/scitranslmed.adi4125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 05/14/2024] [Indexed: 06/07/2024]
Abstract
Chronic inflammation is a constitutive component of many age-related diseases, including age-related macular degeneration (AMD). Here, we identified interleukin-1 receptor-associated kinase M (IRAK-M) as a key immunoregulator in retinal pigment epithelium (RPE) that declines during the aging process. Rare genetic variants of IRAK3, which encodes IRAK-M, were associated with an increased likelihood of developing AMD. In human samples and mouse models, IRAK-M abundance in the RPE declined with advancing age or exposure to oxidative stress and was further reduced in AMD. Irak3-knockout mice exhibited an increased incidence of outer retinal degeneration at earlier ages, which was further exacerbated by oxidative stressors. The absence of IRAK-M led to a disruption in RPE cell homeostasis, characterized by compromised mitochondrial function, cellular senescence, and aberrant cytokine production. IRAK-M overexpression protected RPE cells against oxidative or immune stressors. Subretinal delivery of adeno-associated virus (AAV)-expressing human IRAK3 rescued light-induced outer retinal degeneration in wild-type mice and attenuated age-related spontaneous retinal degeneration in Irak3-knockout mice. Our data show that replenishment of IRAK-M in the RPE may redress dysregulated pro-inflammatory processes in AMD, suggesting a potential treatment for retinal degeneration.
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Affiliation(s)
- Jian Liu
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - David A Copland
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - Alison J Clare
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - Mathias Gorski
- Department of Genetic Epidemiology, University of Regensburg, Regensburg 93053, Germany
| | - Burt T Richards
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, University of Utah School of Medicine, Salt Lake City, UT 84132, USA
| | - Louis Scott
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - Sofia Theodoropoulou
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - Ursula Greferath
- Department of Anatomy and Physiology, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Katherine Cox
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - Gongyu Shi
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - Oliver H Bell
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - Kepeng Ou
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - Jenna Le Brun Powell
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - Jiahui Wu
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - Luis Martinez Robles
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK
| | - Yingxin Li
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
| | - Lindsay B Nicholson
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK
| | - Peter J Coffey
- Institute of Ophthalmology, University College London, London EC1V 9EL, UK
| | - Erica L Fletcher
- Department of Anatomy and Physiology, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Robyn Guymer
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Monte J Radeke
- Neuroscience Research Institute, University of California, Santa Barbara, CA 93106, USA
| | - Iris M Heid
- Department of Genetic Epidemiology, University of Regensburg, Regensburg 93053, Germany
| | - Gregory S Hageman
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, University of Utah School of Medicine, Salt Lake City, UT 84132, USA
| | - Ying Kai Chan
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02215, USA
| | - Andrew D Dick
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol BS8 1TD, UK
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK
- Institute of Ophthalmology, University College London, London EC1V 9EL, UK
- National Institute for Health Research Biomedical Research Centre, Moorfields Eye Hospital, London EC1V 2PD, UK
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2
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Malih S, Song YS, Sorenson CM, Sheibani N. Choroidal Mast Cells and Pathophysiology of Age-Related Macular Degeneration. Cells 2023; 13:50. [PMID: 38201254 PMCID: PMC10778483 DOI: 10.3390/cells13010050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Age-related macular degeneration (AMD) remains a leading cause of vision loss in elderly patients. Its etiology and progression are, however, deeply intertwined with various cellular and molecular interactions within the retina and choroid. Among the key cellular players least studied are choroidal mast cells, with important roles in immune and allergic responses. Here, we will review what is known regarding the pathophysiology of AMD and expand on the recently proposed intricate roles of choroidal mast cells and their activation in outer retinal degeneration and AMD pathogenesis. We will focus on choroidal mast cell activation, the release of their bioactive mediators, and potential impact on ocular oxidative stress, inflammation, and overall retinal and choroidal health. We propose an important role for thrombospondin-1 (TSP1), a major ocular angioinflammatory factor, in regulation of choroidal mast cell homeostasis and activation in AMD pathogenesis. Drawing from limited studies, this review underscores the need for further comprehensive studies aimed at understanding the precise roles changes in TSP1 levels and choroidal mast cell activity play in pathophysiology of AMD. We will also propose potential therapeutic strategies targeting these regulatory pathways, and highlighting the promise they hold for curbing AMD progression through modulation of mast cell activity. In conclusion, the evolving understanding of the role of choroidal mast cells in AMD pathogenesis will not only offer deeper insights into the underlying mechanisms but will also offer opportunities for development of novel preventive strategies.
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Affiliation(s)
- Sara Malih
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA; (S.M.); (Y.-S.S.)
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran 15614, Iran
| | - Yong-Seok Song
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA; (S.M.); (Y.-S.S.)
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA;
| | - Christine M. Sorenson
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA;
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Nader Sheibani
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA; (S.M.); (Y.-S.S.)
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA;
- Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
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3
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Ma H, Wei H, Zou C, Zhu G, Gao Q, Zhang N, Wang B. Anti-VEGF Drugs in Age-Related Macular Degeneration: A Focus on Dosing Regimen-Related Safety and Efficacy. Drugs Aging 2023; 40:991-1007. [PMID: 37863867 DOI: 10.1007/s40266-023-01068-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2023] [Indexed: 10/22/2023]
Abstract
Age-related macular degeneration (AMD) is one of the main causes of visual impairment and severe visual loss, and can progress to two advanced forms-neovascularization and atrophic. The field of anti-AMD drugs has undergone huge developments in recent years, from single-target intravitreal administration to current clinical studies with multi-target and non-invasive agents, offering interesting new pharmacological opportunities for the treatment of this disease. Hence, we summarize some of the approved anti-vascular endothelial growth factor (VEGF) drugs for neovascular AMD, especially their structural characteristics, clinical manifestations, dosing regimens, and safety issues of the anti-VEGF drugs highlighted. In addition, advances in atrophic AMD drug research are also briefly described.
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Affiliation(s)
- Haibei Ma
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hai Wei
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chunpu Zou
- School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Guoqin Zhu
- SPH Xingling Sci. & Tech. Pharmaceutical Co. Ltd., Shanghai, China
| | - Qi Gao
- SPH Xingling Sci. & Tech. Pharmaceutical Co. Ltd., Shanghai, China.
| | - Ning Zhang
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, 1200 Cai-lun Rd, Shanghai, China.
| | - Bing Wang
- Center for Pharmaceutics Research, Shanghai Institute of Materia Medica Chinese Academy of Sciences, 501 Hai-ke Rd, Shanghai, China.
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Liu J, Copland DA, Clare AJ, Gorski M, Richards BT, Scott L, Theodoropoulou S, Greferath U, Cox K, Bell OH, Ou K, Powell JLB, Wu J, Robles LM, Li Y, Nicholson LB, Coffey PJ, Fletcher EL, Guymer R, Radeke MJ, Heid IM, Hageman GS, Chan YK, Dick AD. Replenishing Age-Related Decline of IRAK-M Expression in Retinal Pigment Epithelium Attenuates Outer Retinal Degeneration. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.27.559733. [PMID: 37808640 PMCID: PMC10557650 DOI: 10.1101/2023.09.27.559733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Unchecked, chronic inflammation is a constitutive component of age-related diseases, including age-related macular degeneration (AMD). Here we identified interleukin-1 receptor-associated kinase (IRAK)-M as a key immunoregulator in retinal pigment epithelium (RPE) that declines with age. Rare genetic variants of IRAK-M increased the likelihood of AMD. IRAK-M expression in RPE declined with age or oxidative stress and was further reduced in AMD. IRAK-M-deficient mice exhibited increased incidence of outer retinal degeneration at earlier ages, which was further exacerbated by oxidative stressors. The absence of IRAK-M disrupted RPE cell homeostasis, including compromised mitochondrial function, cellular senescence, and aberrant cytokine production. IRAK-M overexpression protected RPE cells against oxidative or immune stressors. Subretinal delivery of AAV-expressing IRAK-M rescued light-induced outer retinal degeneration in wild-type mice and attenuated age-related spontaneous retinal degeneration in IRAK-M-deficient mice. Our data support that replenishment of IRAK-M expression may redress dysregulated pro-inflammatory processes in AMD, thereby treating degeneration.
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Affiliation(s)
- Jian Liu
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - David A. Copland
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Alison J. Clare
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Mathias Gorski
- Department of Genetic Epidemiology, University of Regensburg, Regensburg, Germany
| | - Burt T. Richards
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, University of Utah School of Medicine, Salt Lake City, Utah, United States
| | - Louis Scott
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Sofia Theodoropoulou
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Ursula Greferath
- Department of Anatomy and Physiology, University of Melbourne, Victoria, Australia
| | - Katherine Cox
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Oliver H. Bell
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Kepeng Ou
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Jenna Le Brun Powell
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Jiahui Wu
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Luis Martinez Robles
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Yingxin Li
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Lindsay B. Nicholson
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Peter J. Coffey
- Institute of Ophthalmology, University College London, London, United Kingdom
| | - Erica L. Fletcher
- Department of Anatomy and Physiology, University of Melbourne, Victoria, Australia
| | - Robyn Guymer
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, Australia
| | - Monte J. Radeke
- Neuroscience Research Institute, University of California, Santa Barbara, California, United States
| | - Iris M. Heid
- Department of Genetic Epidemiology, University of Regensburg, Regensburg, Germany
| | - Gregory S. Hageman
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, University of Utah School of Medicine, Salt Lake City, Utah, United States
| | - Ying Kai Chan
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts, United States
| | - Andrew D. Dick
- Academic Unit of Ophthalmology, Bristol Medical School, University of Bristol, Bristol, United Kingdom
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
- Institute of Ophthalmology, University College London, London, United Kingdom
- National Institute for Health Research Biomedical Research Centre, Moorfields Eye Hospital, London, United Kingdom
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Augustine J, Pavlou S, Harkin K, Stitt AW, Xu H, Chen M. IL-33 regulates Müller cell-mediated retinal inflammation and neurodegeneration in diabetic retinopathy. Dis Model Mech 2023; 16:dmm050174. [PMID: 37671525 PMCID: PMC10499035 DOI: 10.1242/dmm.050174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 07/31/2023] [Indexed: 09/07/2023] Open
Abstract
Diabetic retinopathy (DR) is characterised by dysfunction of the retinal neurovascular unit, leading to visual impairment and blindness. Müller cells are key components of the retinal neurovascular unit and diabetes has a detrimental impact on these glial cells, triggering progressive neurovascular pathology of DR. Amongst many factors expressed by Müller cells, interleukin-33 (IL-33) has an established immunomodulatory role, and we investigated the role of endogenous IL-33 in DR. The expression of IL-33 in Müller cells increased during diabetes. Wild-type and Il33-/- mice developed equivalent levels of hyperglycaemia and weight loss following streptozotocin-induced diabetes. Electroretinogram a- and b-wave amplitudes, neuroretina thickness, and the numbers of cone photoreceptors and ganglion cells were significantly reduced in Il33-/- diabetic mice compared with those in wild-type counterparts. The Il33-/- diabetic retina also exhibited microglial activation, sustained gliosis, and upregulation of pro-inflammatory cytokines and neurotrophins. Primary Müller cells from Il33-/- mice expressed significantly lower levels of neurotransmitter-related genes (Glul and Slc1a3) and neurotrophin genes (Cntf, Lif, Igf1 and Ngf) under high-glucose conditions. Our results suggest that deletion of IL-33 promotes inflammation and neurodegeneration in DR, and that this cytokine is critical for regulation of glutamate metabolism, neurotransmitter recycling and neurotrophin secretion by Müller cells.
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Affiliation(s)
- Josy Augustine
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Sofia Pavlou
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Kevin Harkin
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Alan W. Stitt
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Heping Xu
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Mei Chen
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
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Venkatesh P. Hypo-angiogenesis: a possible pathological factor in the development of dry age-related macular degeneration and a novel therapeutic target. MEDICAL HYPOTHESIS, DISCOVERY & INNOVATION OPHTHALMOLOGY JOURNAL 2022; 10:185-190. [PMID: 37641652 PMCID: PMC10460233 DOI: 10.51329/mehdiophthal1437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 12/20/2021] [Indexed: 08/31/2023]
Abstract
Background Angiogenesis causes severe vision loss in patients with exudative or wet forms of age-related macular degeneration (AMD). The pathogenesis involves upregulation of several proangiogenic factors, particularly the vascular endothelial growth factor (VEGF). Contrary to the pathogenesis of exudative AMD, molecular events leading to the development of dry AMD remain unclear. Dry AMD is characterized by loss of the retinal pigment epithelium (RPE). The mechanism that triggers RPE cell loss remains unclear. Choriocapillaris development is absent in mice with RPE-specific deletion of VEGF. Moreover, in later life, background VEGF secretion promotes the survival of the RPE and maintains choriocapillaris integrity. Hypothesis We hypothesized that reduced synthesis of VEGF (hypo-angiogenesis) or abnormalities in its receptors, VEGF receptor-1 (VEGFR1) and VEGFR2, may be involved in the pathogenesis of non-exudative AMD or dry AMD. If the concept of hypo-angiogenesis as a driver for dry AMD is proven, treatment with VEGF or induction of angiogenesis could be considered. Similar attempts at therapeutic angiogenesis have been actively investigated in cardiac and limb ischemia. Conclusions The reasons for a patient developing exudative AMD or dry AMD remain poorly understood. Nevertheless, targeting increased VEGF production in patients with exudative AMD using anti-VEGF drugs is highly efficacious in preserving vision. Similarly, dry AMD may be a manifestation of reduced VEGF synthesis (hypo-angiogenesis) and subsequent decreased RPE cell survival. Experimental studies exploring the possibility of reduced VEGF secretion and/or increased receptor resistance/abnormality could pave the way for clinical trials of angiogenesis to treat dry AMD.
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Affiliation(s)
- Pradeep Venkatesh
- Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences Sciences (AIIMS), New Delhi, India
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Ren J, Ren A, Deng X, Huang Z, Jiang Z, Li Z, Gong Y. Long-Chain Polyunsaturated Fatty Acids and Their Metabolites Regulate Inflammation in Age-Related Macular Degeneration. J Inflamm Res 2022; 15:865-880. [PMID: 35173457 PMCID: PMC8842733 DOI: 10.2147/jir.s347231] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/20/2022] [Indexed: 12/24/2022] Open
Abstract
Age-related macular degeneration (AMD) is a blinding eye disease, whose incidence strongly increases with ages. The etiology of AMD is complex, including aging, abnormal lipid metabolism, chronic inflammation and oxidative stress. Long-chain polyunsaturated fatty acids (LCPUFA) are essential for ocular structures and functions. This review summarizes the regulatory effects of LCPUFA on inflammation in AMD. LCPUFA are related to aging, autophagy and chronic inflammation. They are metabolized to pro- and anti-inflammatory metabolites by various enzymes. These metabolites stimulate inflammation in response to oxidative stress, causing innate and acquired immune responses. This review also discusses the possible clinical applications, which provided novel targets for the prevention and treatment of AMD and other age-related diseases.
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Affiliation(s)
- Jiangbo Ren
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Anli Ren
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Xizhi Deng
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Zhengrong Huang
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Ziyu Jiang
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Zhi Li
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Yan Gong
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
- Human Genetics Resource Preservation Center of Wuhan University, Wuhan University, Wuhan, Hubei, People’s Republic of China
- Correspondence: Yan Gong; Zhi Li, Tel +86 27 6781 1461; +86 27 6781 2622, Fax +86 27 6781 1471; +86 27 6781 3133, Email ;
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