1
|
Qian X, Srinivasan T, He J, Lu J, Jin Y, Gu H, Chen R. Ceramide compensation by ceramide synthases preserves retinal function and structure in a retinal dystrophy mouse model. Dis Model Mech 2023; 16:dmm050168. [PMID: 37466006 PMCID: PMC10387349 DOI: 10.1242/dmm.050168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/19/2023] [Indexed: 07/20/2023] Open
Abstract
Increasing evidence has supported the role of ceramide as a mediator of photoreceptor dysfunction or cell death in ceramide accumulation and deficiency contexts. TLCD3B, a non-canonical ceramide synthase, was previously identified in addition to the six canonical ceramide synthases (CerSs), and the Tlcd3b-/- mouse model exhibited both retinal dysfunction and degeneration. As previous canonical CerS-deficient mouse models failed to display retinal degeneration, the mechanisms of how TLCD3B interacts with CerSs have not been investigated. Additionally, as the ceramide profile of each CerS is distinct, it is unclear whether the overall level or the homeostasis of different ceramide species plays a critical role in photoreceptor degeneration. Interactions between TLCD3B with canonical CerSs expressed in the retina were examined by subretinally injecting recombinant adeno-associated virus 8 vectors containing the Cers2 (rAAV8-CerS2), Cers4 (rAAV8-CerS4) and Cers5 (rAAV8-CerS5) genes. Injection of all three rAAV8-CerS vectors restored retinal functions as indicated by improved electroretinogram responses, but only rAAV8-CerS5 successfully retained retinal morphology in Tlcd3b-/- mice. CerSs and TLCD3B played partially redundant roles. Additionally, rather than acting as an integral entity, different ceramide species had different impacts on retinal cells, suggesting that the maintenance of the overall ceramide profile is critical for retinal function.
Collapse
Affiliation(s)
- Xinye Qian
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
| | | | | | - Jiaxiong Lu
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yan Jin
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Haiwei Gu
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Rui Chen
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| |
Collapse
|
2
|
Zhang H, Nagree MS, Liu H, Pan X, Medin JA, Lipinski DM. rAAV-mediated over-expression of acid ceramidase prevents retinopathy in a mouse model of Farber lipogranulomatosis. Gene Ther 2022; 30:297-308. [PMID: 35902747 DOI: 10.1038/s41434-022-00359-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 11/09/2022]
Abstract
Farber disease (FD) is a rare monogenic lysosomal storage disorder caused by mutations in ASAH1 that results in a deficiency of acid ceramidase (ACDase) activity and the abnormal systemic accumulation of ceramide species, leading to multi-system organ failure involving neurological decline and retinopathy. Here we describe the effects of rAAV-mediated ASAH1 over-expression on the progression of retinopathy in a mouse model of FD (Asah1P361R/P361R) and its littermate controls (Asah1+/+ and Asah1+/P361R). Using a combination of non-invasive multimodal imaging, electrophysiology, post-mortem histology and mass spectrometry we demonstrate that ASAH1 over-expression significantly reduces central retinal thickening, ceramide accumulation, macrophage activation and limits fundus hyper-reflectivity and auto-fluorescence in FD mice, indicating rAAV-mediated over-expression of biologically active ACDase protein is able to rescue the anatomical retinal phenotype of Farber disease. Unexpectedly, ACDase over-expression in Asah1+/+ and Asah1+/P361R control eyes was observed to induce abnormal fundus hyper-reflectivity, auto-fluorescence and retinal thickening that closely resembles a FD phenotype. This study represents the first evidence of a gene therapy for Farber disease-related retinopathy. Importantly, the described gene therapy approach could be used to preserve vision in FD patients synergistically with broader enzyme replacement strategies aimed at preserving life.
Collapse
Affiliation(s)
- Hanmeng Zhang
- Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Ophthalmology and Visual Sciences, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Murtaza S Nagree
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.,Department of Pediatrics: Section of Hematology/Oncology/BMT, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Haoyuan Liu
- Department of Mathematics, Shanghai Normal University, Shanghai, China
| | - Xiaoqing Pan
- Department of Mathematics, Shanghai Normal University, Shanghai, China
| | - Jeffrey A Medin
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.,Department of Pediatrics: Section of Hematology/Oncology/BMT, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Daniel M Lipinski
- Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA. .,Department of Ophthalmology and Visual Sciences, Medical College of Wisconsin, Milwaukee, WI, USA.
| |
Collapse
|
3
|
Genetic Variants of Complement Factor H Y402H (rs1061170), C2 R102G (rs2230199), and C3 E318D (rs9332739) and Response to Intravitreal Anti-VEGF Treatment in Patients with Exudative Age-Related Macular Degeneration. Medicina (B Aires) 2022; 58:medicina58050658. [PMID: 35630075 PMCID: PMC9145696 DOI: 10.3390/medicina58050658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/28/2022] [Accepted: 05/07/2022] [Indexed: 12/25/2022] Open
Abstract
Background and Objectives: To assess the association between the single nucleotide polymorphisms (SNPs) in the genes encoding complement factors CFH, C2, and C3 (Y402H rs1061170, R102G rs2230199, and E318D rs9332739, respectively) and response to intravitreal anti-vascular endothelial growth factor (VEGF) therapy in patients with exudative age-related macular degeneration (AMD). Materials and Methods: The study included 111 patients with exudative AMD treated with intravitreal bevacizumab or ranibizumab injections. Response to therapy was assessed on the basis of best-corrected visual acuity (BCVA) and central retinal thickness (CRT) measured every 4 weeks for 12 months. The control group included 58 individuals without AMD. The SNPs were genotyped by a real-time polymerase chain reaction in genomic DNA isolated from peripheral blood samples. Results: The CC genotype in SNP rs1061170 of the CFH gene was more frequent in patients with AMD than in controls (p = 0.0058). It was also more common among the 28 patients (25.2%) with poor response to therapy compared with good responders (p = 0.0002). Poor responders, especially those without this genotype, benefited from switching to another anti-VEGF drug. At the last follow-up assessment, carriers of this genotype had significantly worse BCVA (p = 0.0350) and greater CRT (p = 0.0168) than noncarriers. TT genotype carriers showed improved BCVA (p = 0.0467) and reduced CRT compared with CC and CT genotype carriers (p = 0.0194). No associations with AMD or anti-VEGF therapy outcomes for SNP rs9332739 in the C2 gene and SNP rs2230199 in the C3 gene were found. Conclusions: The CC genotype for SNP rs1061170 in the CFH gene was associated with AMD in our population. Additionally, it promoted a poor response to anti-VEGF therapy. On the other hand, TT genotype carriers showed better functional and anatomical response to anti-VEGF therapy at 12 months than carriers of the other genotypes for this SNP.
Collapse
|
4
|
Wang J, Zhang H, Ren W, Guo M, Yu G. EpiMC: Detecting Epistatic Interactions Using Multiple Clusterings. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2022; 19:243-254. [PMID: 33989157 DOI: 10.1109/tcbb.2021.3080462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Detecting single nucleotide polymorphisms (SNPs) interactions is crucial to identify susceptibility genes associated with complex human diseases in genome-wide association studies. Clustering-based approaches are widely used in reducing search space and exploring potential relationships between SNPs in epistasis analysis. However, these approaches all only use a single measure to filter out nonsignificant SNP combinations, which may be significant ones from another perspective. In this paper, we propose a two-stage approach named EpiMC (Epistatic Interactions detection based on Multiple Clusterings) that employs multiple clusterings to obtain more precise candidate sets and more comprehensively detect high-order interactions based on these sets. In the first stage, EpiMC proposes a matrix factorization based multiple clusterings algorithm to generate multiple diverse clusterings, each of which divide all SNPs into different clusters. This stage aims to reduce the chance of filtering out potential candidates overlooked by a single clustering and groups associated SNPs together from different clustering perspectives. In the next stage, EpiMC considers both the single-locus effects and interaction effects to select high-quality disease associated SNPs, and then uses Jaccard similarity to get candidate sets. Finally, EpiMC uses exhaustive search on the obtained small candidate sets to precisely detect epsitatic interactions. Extensive simulation experiments show that EpiMC has a better performance in detecting high-order interactions than state-of-the-art solutions. On the Wellcome Trust Case Control Consortium (WTCCC) dataset, EpiMC detects several significant epistatic interactions associated with breast cancer (BC) and age-related macular degeneration (AMD), which again corroborate the effectiveness of EpiMC.
Collapse
|
5
|
Hsu TJ, Nepali K, Tsai CH, Imtiyaz Z, Lin FL, Hsiao G, Lai MJ, Cheng YW. The HDAC/HSP90 Inhibitor G570 Attenuated Blue Light-Induced Cell Migration in RPE Cells and Neovascularization in Mice through Decreased VEGF Production. Molecules 2021; 26:4359. [PMID: 34299636 PMCID: PMC8305912 DOI: 10.3390/molecules26144359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/11/2021] [Accepted: 07/16/2021] [Indexed: 11/16/2022] Open
Abstract
Age-related macular degeneration (AMD) occurs due to an abnormality of retinal pigment epithelium (RPE) cells that leads to gradual degeneration of the macula. Currently, AMD drug pipelines are endowed with limited options, and anti-VEGF agents stand as the dominantly employed therapy. Despite the proven efficacy of such agents, the evidenced side effects associated with their use underscore the need to elucidate other mechanisms involved and identify additional molecular targets for the sake of therapy improvement. The previous literature provided us with a solid rationale to preliminarily explore the potential of selective HDAC6 and HSP90 inhibitors to treat wet AMD. Rather than furnishing single-target agents (either HDAC6 or HSP90 inhibitor), this study recruited scaffolds endowed with the ability to concomitantly modulate both targets (HDAC6 and HSP90) for exploration. This plan was anticipated to accomplish the important goal of extracting amplified benefits via dual inhibition (HDAC6/HSP90) in wet AMD. As a result, G570 (indoline-based hydroxamate), a dual selective HDAC6-HSP90 inhibitor exerting its effects at micromolar concentrations, was pinpointed in the present endeavor to attenuate blue light-induced cell migration and retinal neovascularization by inhibiting VEGF production. In addition to the identification of a potential chemical tool (G570), the outcome of this study validates the candidate HDAC6-HSP90 as a compelling target for the development of futuristic therapeutics for wet AMD.
Collapse
Affiliation(s)
- Tai-Ju Hsu
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan; (T.-J.H.); (K.N.); (C.-H.T.); (Z.I.)
| | - Kunal Nepali
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan; (T.-J.H.); (K.N.); (C.-H.T.); (Z.I.)
| | - Chi-Hao Tsai
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan; (T.-J.H.); (K.N.); (C.-H.T.); (Z.I.)
- Department of Ophthalmology, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Zuha Imtiyaz
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan; (T.-J.H.); (K.N.); (C.-H.T.); (Z.I.)
| | - Fan-Li Lin
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 100301, Taiwan; (F.-L.L.); (G.H.)
| | - George Hsiao
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 100301, Taiwan; (F.-L.L.); (G.H.)
| | - Mei-Jung Lai
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan
- Biomedical Commercialization Center, Taipei Medical University, Taipei 100301, Taiwan
| | - Yu-Wen Cheng
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan; (T.-J.H.); (K.N.); (C.-H.T.); (Z.I.)
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan
| |
Collapse
|
6
|
Neto JM, Viturino MG, Ananina G, Bajano FF, Costa SMDS, Roque AB, Borges GF, Franchi R, Rim PH, Medina FM, Costa FF, Melo MBD, de Vasconcellos JP. Association of genetic variants rs641153 ( CFB), rs2230199 ( C3), and rs1410996 ( CFH) with age-related macular degeneration in a Brazilian population. Exp Biol Med (Maywood) 2021; 246:2290-2296. [PMID: 34233521 DOI: 10.1177/15353702211024543] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study aimed to investigate the association among genetic variants of the complement pathway CFB R32Q (rs641153), C3 R102G (rs2230199), and CFH (rs1410996) with age-related macular degeneration (AMD) in a sample of the Brazilian population. In a case-control study, 484 AMD patients were classified according to the clinical age-related maculopathy grading system (CARMS) and compared to 479 unrelated controls. The genetic variants rs1410996 of complement H (CFH), rs641153 of complement factor B (CFB), and rs2230199 of complement 3 (C3) were evaluated through polymerase chain reaction (PCR) and direct sequencing. The associations between single nucleotide polymorphisms (SNPs) and AMD, adjusted by age, were assessed by using logistic regression models. A statistically significant association was observed between AMD risk and rs2230199 variant with an OR of 2.01 (P = 0.0002) for CG individuals compared to CC individuals. Regarding the comparison of advanced AMD versus the control group, the OR was 2.12 (P = 0.0036) for GG versus AA genotypes for rs1410996 variant. Similarly, the OR for rs2230199 polymorphism was 2.3034 (P = 5.47e-05) when comparing CG individuals to CC carriers. In contrast, the rs641153 variant showed a significant protective effect against advanced AMD for GA versus GG genotype (OR = 0.4406; P = 0.0019). When comparing wet AMD versus controls, a significant association was detected for rs1410996 variant (OR = 2.16; P = 0.0039) comparing carriers of the homozygous GG versus AA genotype, as well as in the comparisons of GG (OR = 3.0713; P = 0.0046) and CG genotypes (OR = 2.2249; P = 0.0002) versus CC genotype for rs2230199 variant, respectively. The rs641153 variant granted a significant protective effect against wet AMD for GA versus GG genotypes (OR = 0.4601; P = 0.0044). Our study confirmed the risk association between rs2230199 and rs1410996 variants and AMD, and the protective role against AMD for rs641153 variant.
Collapse
Affiliation(s)
- Jamil M Neto
- Department of Ophthalmology, Faculty of Medical Sciences - University of Campinas - Campinas, SP 13083-887, Brazil
| | - Marina Gm Viturino
- Department of Ophthalmology, Faculty of Medical Sciences - University of Campinas - Campinas, SP 13083-887, Brazil
| | - Galina Ananina
- Laboratory of Human Genetics, Center for Molecular Biology and Genetic Engineering (CBMEG) - University of Campinas - Campinas, SP 13083-875, Brazil
| | - Flávia F Bajano
- Laboratory of Human Genetics, Center for Molecular Biology and Genetic Engineering (CBMEG) - University of Campinas - Campinas, SP 13083-875, Brazil
| | - Sueli M da S Costa
- Laboratory of Human Genetics, Center for Molecular Biology and Genetic Engineering (CBMEG) - University of Campinas - Campinas, SP 13083-875, Brazil
| | - Alicia B Roque
- Department of Ophthalmology, Faculty of Medical Sciences - University of Campinas - Campinas, SP 13083-887, Brazil
| | - Gessica Fs Borges
- Department of Ophthalmology, Faculty of Medical Sciences - University of Campinas - Campinas, SP 13083-887, Brazil
| | - Raissa Franchi
- Laboratory of Human Genetics, Center for Molecular Biology and Genetic Engineering (CBMEG) - University of Campinas - Campinas, SP 13083-875, Brazil
| | - Priscila Hh Rim
- Department of Ophthalmology, Faculty of Medical Sciences - University of Campinas - Campinas, SP 13083-887, Brazil
| | - Flávio M Medina
- Department of Ophthalmology, Faculty of Medical Sciences, University of State of Rio de Janeiro - Rio de Janeiro, RJ 20551-030, Brazil
| | - Fernando F Costa
- Hematology and Hemotherapy Center - University of Campinas - Campinas, SP 13083-878, Brazil
| | - Mônica B de Melo
- Laboratory of Human Genetics, Center for Molecular Biology and Genetic Engineering (CBMEG) - University of Campinas - Campinas, SP 13083-875, Brazil
| | - José Pc de Vasconcellos
- Department of Ophthalmology, Faculty of Medical Sciences - University of Campinas - Campinas, SP 13083-887, Brazil
| |
Collapse
|
7
|
Ohishi K, Hosono K, Obana A, Noda A, Hiramitsu T, Hotta Y, Minoshima S. Identification of susceptibility loci for light-induced visual impairment in rats. Exp Eye Res 2021; 210:108688. [PMID: 34237304 DOI: 10.1016/j.exer.2021.108688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/14/2021] [Accepted: 06/29/2021] [Indexed: 12/01/2022]
Abstract
Bright light exposure in animals results in the selective degeneration of the outer retina, known as "retinal photic injury" (RPI). The susceptibility to RPI differs among rat strains. WKY rats display susceptibility to RPI with extensive retinal degeneration observed in the sagittal eye specimen, whereas LEW strain rats are resistant to it, showing only slight or no degeneration. In the present study, we first established an ethological screening method using the Morris water maze to discern differential susceptibility among the living rats. WKY and LEW were crossed to produce the first filial generation (F1) offspring. Maze-trained individuals were exposed to bright, white light. The screening test results demonstrated that the susceptibility to light-induced visual impairment in rats is a dominant Mendelian susceptibility trait, as F1 rats were susceptible to visual impairment like WKY rats. Therefore, F1 rats were backcrossed with recessive LEW to produce the first backcross offspring (BC1). Subsequent recurrent backcrossing while selecting for the susceptibility, indicated a segregation ratio of ca. 24% in BC1 and BC2 generations, indicating the involvement of two or more genes in the susceptibility. Further, microsatellite analysis of BC1-to-BC4 individuals using microsatellite markers mapped two susceptibility loci on chromosome segments 5q36 and 19q11-q12, named RPI susceptibility (Rpi)1 and Rpi2, respectively. This study provides an insight into mechanisms underlying differential susceptibility, which could help decipher the mechanism underlying the onset/progression of human age-related macular degeneration.
Collapse
Affiliation(s)
- Kentaro Ohishi
- Department of Photomedical Genomics, Institute for Medical Photonics Research, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan.
| | - Katsuhiro Hosono
- Department of Ophthalmology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Akira Obana
- Hamamatsu BioPhotonics Innovation Chair, Institute for Medical Photonics Research, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan; Department of Ophthalmology, Seirei Hamamatsu General Hospital, 2-12-12 Sumiyoshi, Naka-ku, Hamamatsu, 430-8558, Japan
| | - Akio Noda
- Department of Integrated Human Sciences (Mathematics), Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Tadahisa Hiramitsu
- Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Yoshihiro Hotta
- Department of Ophthalmology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Shinsei Minoshima
- Department of Photomedical Genomics, Institute for Medical Photonics Research, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| |
Collapse
|
8
|
Park YG, Park YS, Kim IB. Complement System and Potential Therapeutics in Age-Related Macular Degeneration. Int J Mol Sci 2021; 22:ijms22136851. [PMID: 34202223 PMCID: PMC8269056 DOI: 10.3390/ijms22136851] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 12/26/2022] Open
Abstract
Age-related macular degeneration (AMD) is a complex multifactorial disease characterized in its late form by neovascularization (wet type) or geographic atrophy of the retinal pigment epithelium cell layer (dry type). The complement system is an intrinsic component of innate immunity. There has been growing evidence that the complement system plays an integral role in maintaining immune surveillance and homeostasis in AMD. Based on the association between the genotypes of complement variants and AMD occurrence and the presence of complement in drusen from AMD patients, the complement system has become a therapeutic target for AMD. However, the mechanism of complement disease propagation in AMD has not been fully understood. This concise review focuses on an overall understanding of the role of the complement system in AMD and its ongoing clinical trials. It provides further insights into a strategy for the treatment of AMD targeting the complement system.
Collapse
Affiliation(s)
- Young Gun Park
- Department of Ophthalmology and Visual Science, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Yong Soo Park
- Department of Anatomy, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - In-Beom Kim
- Department of Anatomy, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
- Catholic Neuroscience Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Catholic Institute for Applied Anatomy, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence: ; Tel.: +82-2-2258-7263
| |
Collapse
|
9
|
Abstract
This manuscript focuses on the pathogenesis of age-related maculopathy (ARM) and the documentation of new treatments in ARM. Ischaemia will be given special consideration, as it is believed to play a central role in both early ARM and late ARM or age-related macular degeneration (AMD). Reduced choroidal and retinal blood flow causes ischaemia of Bruch's membrane, retinal pigment epithelium and neuroretina in the early course of ARM. This is thought to be the primary trigger of the condition. Chronic ischaemia upregulates vascular endothelial growth factor (VEGF), which induces abnormal vessel growth in neovascular AMD. The role of ischaemia in neovascular AMD is supported by the evidence of effective new treatments targeting VEGF.
Collapse
Affiliation(s)
- Beatrix Feigl
- Institute of Health and Biomedical Innovation and School of Optometry, Queensland University of Technology, Brisbane, Australia.
| |
Collapse
|
10
|
Crane R, Conley SM, Al-Ubaidi MR, Naash MI. Gene Therapy to the Retina and the Cochlea. Front Neurosci 2021; 15:652215. [PMID: 33815052 PMCID: PMC8010260 DOI: 10.3389/fnins.2021.652215] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 02/22/2021] [Indexed: 12/20/2022] Open
Abstract
Vision and hearing disorders comprise the most common sensory disorders found in people. Many forms of vision and hearing loss are inherited and current treatments only provide patients with temporary or partial relief. As a result, developing genetic therapies for any of the several hundred known causative genes underlying inherited retinal and cochlear disorders has been of great interest. Recent exciting advances in gene therapy have shown promise for the clinical treatment of inherited retinal diseases, and while clinical gene therapies for cochlear disease are not yet available, research in the last several years has resulted in significant advancement in preclinical development for gene delivery to the cochlea. Furthermore, the development of somatic targeted genome editing using CRISPR/Cas9 has brought new possibilities for the treatment of dominant or gain-of-function disease. Here we discuss the current state of gene therapy for inherited diseases of the retina and cochlea with an eye toward areas that still need additional development.
Collapse
Affiliation(s)
- Ryan Crane
- Department of Biomedical Engineering, University of Houston, Houston, TX, United States
| | - Shannon M. Conley
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
- Oklahoma Center for Neurosciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Muayyad R. Al-Ubaidi
- Department of Biomedical Engineering, University of Houston, Houston, TX, United States
- College of Optometry, University of Houston, Houston, TX, United States
- Depatment of Biology and Biochemistry, University of Houston, Houston, TX, United States
| | - Muna I. Naash
- Department of Biomedical Engineering, University of Houston, Houston, TX, United States
- College of Optometry, University of Houston, Houston, TX, United States
- Depatment of Biology and Biochemistry, University of Houston, Houston, TX, United States
| |
Collapse
|
11
|
Micera A, Balzamino BO, Di Zazzo A, Dinice L, Bonini S, Coassin M. Biomarkers of Neurodegeneration and Precision Therapy in Retinal Disease. Front Pharmacol 2021; 11:601647. [PMID: 33584278 PMCID: PMC7873955 DOI: 10.3389/fphar.2020.601647] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/09/2020] [Indexed: 12/11/2022] Open
Abstract
Vision-threatening retinal diseases affect millions of people worldwide, representing an important public health issue (high social cost) for both technologically advanced and new-industrialized countries. Overall RD group comprises the retinitis pigmentosa, the age-related macular degeneration (AMD), the diabetic retinopathy (DR), and idiopathic epiretinal membrane formation. Endocrine, metabolic, and even lifestyles risk factors have been reported for these age-linked conditions that represent a “public priority” also in this COVID-19 emergency. Chronic inflammation and neurodegeneration characterize the disease evolution, with a consistent vitreoretinal interface impairment. As the vitreous chamber is significantly involved, the latest diagnostic technologies of imaging (retina) and biomarker detection (vitreous) have provided a huge input at both medical and surgical levels. Complement activation and immune cell recruitment/infiltration as well as detrimental intra/extracellular deposits occur in association with a reactive gliosis. The cell/tissue aging route shows a specific signal path and biomolecular profile characterized by the increased expression of several glial-derived mediators, including angiogenic/angiostatic, neurogenic, and stress-related factors (oxidative stress metabolites, inflammation, and even amyloid formation). The possibility to access vitreous chamber by collecting vitreous reflux during intravitreal injection or obtaining vitreous biopsy during a vitrectomy represents a step forward for an individualized therapy. As drug response and protein signature appear unique in each single patient, therapies should be individualized. This review addresses the current knowledge about biomarkers and pharmacological targets in these vitreoretinal diseases. As vitreous fluids might reflect the early stages of retinal sufferance and/or late stages of neurodegeneration, the possibility to modulate intravitreal levels of growth factors, in combination to anti-VEGF therapy, would open to a personalized therapy of retinal diseases.
Collapse
Affiliation(s)
- Alessandra Micera
- Research and Development Laboratory for Biochemical, Molecular and Cellular Applications in Ophthalmological Sciences, IRCCS - Fondazione Bietti, Rome, Italy
| | - Bijorn Omar Balzamino
- Research and Development Laboratory for Biochemical, Molecular and Cellular Applications in Ophthalmological Sciences, IRCCS - Fondazione Bietti, Rome, Italy
| | - Antonio Di Zazzo
- Ophthalmology Operative Complex Unit, University Campus Bio-Medico, Rome, Italy
| | - Lucia Dinice
- Research and Development Laboratory for Biochemical, Molecular and Cellular Applications in Ophthalmological Sciences, IRCCS - Fondazione Bietti, Rome, Italy
| | - Stefano Bonini
- Ophthalmology Operative Complex Unit, University Campus Bio-Medico, Rome, Italy
| | - Marco Coassin
- Ophthalmology Operative Complex Unit, University Campus Bio-Medico, Rome, Italy
| |
Collapse
|
12
|
Lai K, Li Y, Gong Y, Li L, Huang C, Xu F, Zhong X, Jin C. Triptolide-nanoliposome-APRPG, a novel sustained-release drug delivery system targeting vascular endothelial cells, enhances the inhibitory effects of triptolide on laser-induced choroidal neovascularization. Biomed Pharmacother 2020; 131:110737. [PMID: 32932044 DOI: 10.1016/j.biopha.2020.110737] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/01/2020] [Accepted: 09/07/2020] [Indexed: 12/21/2022] Open
Abstract
PURPOSE To investigate whether triptolide-nanoliposome-APRPG (TP-nanolip-APRPG), a novel sustained-release nano-drug delivery system that targets vascular endothelial cells, could enhance the inhibition of triptolide (TP) on laser-induced choroidal neovascularization (CNV). METHODS TP was encapsulated with or without APRPG (Ala-Pro-Arg-Pro-Gly) peptide-modified nanoliposomes. CNV was induced by laser photocoagulation in C57BL/6J mice. One microliter of 10 μg free TP monomer, TP-nanolip containing 10 μg TP, TP-nanolip-APRPG containing 10 μg TP, or an identical volume of PBS was intravitreally injected in mice immediately after laser photocoagulation. Seven days after laser photocoagulation, CNV volumes were calculated in each group. Infiltration of M2 macrophages as well as protein levels of vascular endothelial growth factor (VEGF) and inflammatory factors including ICAM-1 and MCP-1 in the RPE-choroid complex were determined. In vitro assays for cell proliferation, migration, and tube formation were also performed. RESULTS TP-nanolip-APRPG was successfully synthesized and exhibited good TP delivery and enhanced the cellular uptake of TP in vitro. In vitro studies showed that TP-nanolip-APRPG was a better inhibitor of cell proliferation (31.34 ± 3.89 % vs 41.25 ± 4.67 % vs 53.55 ± 5.76 %), migration (62.60 ± 8.88 vs 104.60 ± 13.32 vs 147.00 ± 13.15), and tube formation (681.26 ± 108.15 vs 926.75 ± 54.01 vs 1189.84 ± 157.14) than TP-nanolip or free TP (all P < 0.05). Intravitreal injections of free TP (77588.10±7719.28 μm3), TP-nanolip (64628.23 ± 5857.96 μm3), and TP-nanolip-APRPG (50880.34 ± 6606.56 μm3) inhibited the development of CNV compared with the PBS control group (120338.07 ± 17428.90 μm3) (P < 0.01, n=6). TP-nanolip-APRPG and TP-nanolip significantly down-regulated the protein levels of VEGF (152.76±19.55 vs 182.24±19.98 vs 208.55±21.93 pg/mg total protein) and inflammatory factors including ICAM-1 (61.69±3.49 vs 72.04±3.49 vs 81.92±4.09 ng/mg total protein) and MCP-1 (40.14±3.50 vs 50.75±4.18 vs 60.27±5.23 pg/mg total protein) compared with the free TP monomer group (all P < 0.05, n=8), which paralleled the decreased infiltration of M2 macrophages in the CNV lesions. Moreover, no influence on retinal morphology and function was observed before or after treatment in each group (P > 0.05, n=6). CONCLUSIONS TP-nanolip-APRPG, a novel sustained-release drug delivery system targeting endothelial cells of CNV lesions, could enhance TP inhibition of the development of CNV without toxicity in the retina, suggesting therapeutic potential for CNV-related diseases in future clinical practice.
Collapse
Affiliation(s)
- Kunbei Lai
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Yingqin Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Yajun Gong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Longhui Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Chuangxin Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Fabao Xu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Xiaojing Zhong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Chenjin Jin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China.
| |
Collapse
|
13
|
Bonyadi M, Ahmadieh H, Jabbarpoor Bonyadi MH, Shahpasand K, Suri F, Nasrabadi N, Yaseri M, Kheiri B, Soheilian M. Association of Saitohin gene rs62063857 polymorphism with dry type age-related macular degeneration. Ophthalmic Genet 2020; 41:505-506. [PMID: 32615840 DOI: 10.1080/13816810.2020.1786842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PURPOSE Age-related macular degeneration (AMD) as the leading cause of central visual loss in the developed countries has extensive pathologic similarities with Alzheimer's disease (AD). Saitohin rs62063857 Q7 R polymorphism is associated with increased risk of AD though we decided to evaluate the possible association of this polymorphism with advanced AMD. MATERIALS AND METHODS 152 advanced AMD patients (134 wet AMD and 18 geographic atrophy) and 75 healthy controls included in this study. Cases and controls went through a standard ophthalmologic examination by a retinal specialist. Saitohin gene rs62063857 polymorphism determined by using PCR technique and restriction enzyme HinFI. To evaluate the differences between groups we used t-test, Chi-Squared and one-tailed Fisher exact test. RESULTS Distribution of genotypes was not significantly different between total AMD or wet AMD patients compared to that of controls (total AMD RR+QR: OR = 1.51, CI = 0.82-2.79, P = .12; wet AMD RR+QR: OR = 1.39, CI = 0.74-2.59, P = .19). The RR+QR genotypes were significantly higher in dry AMD group compared to that of controls (RR+QR: OR = 2.75, CI = 0.96-7.9, P = .05). CONCLUSION Our results showed that although STH Q7 R polymorphism was not associated with wet AMD susceptibility it was significantly associated with geographic atrophy.
Collapse
Affiliation(s)
- Mortaza Bonyadi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz , Tabriz, Iran
| | - Hamid Ahmadieh
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences , Tehran,Iran
| | | | - Koorosh Shahpasand
- Department of Brain and Cognitive Sciences, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR , Tehran, Iran
| | - Fatemeh Suri
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences , Tehran,Iran
| | - Niyousha Nasrabadi
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Mehdi Yaseri
- Department of Biostatistics and Epidemiology, Tehran University of Medical Sciences , Tehran, Iran
| | - Bahare Kheiri
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences , Tehran,Iran
| | - Masoud Soheilian
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences , Tehran,Iran
| |
Collapse
|
14
|
Lai K, Gong Y, Zhao W, Li L, Huang C, Xu F, Zhong X, Jin C. Triptolide attenuates laser-induced choroidal neovascularization via M2 macrophage in a mouse model. Biomed Pharmacother 2020; 129:110312. [PMID: 32559620 DOI: 10.1016/j.biopha.2020.110312] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/12/2020] [Accepted: 05/21/2020] [Indexed: 12/31/2022] Open
Abstract
PURPOSE To investigate whether triptolide has inhibitory effects on the development of choroidal neovascularization (CNV), together with its underlying anti-angiogenic mechanisms. METHODS CNV was induced in C57BL/6 J mice using laser photocoagulation. Triptolide at concentrations of 0.035 and 0.07 mg/kg body weight (BW) or the same volume of phosphate-buffered saline (PBS) was intraperitoneally injected into mice 2 days before laser photocoagulation, which was continued daily till the end of the experiment. CNV areas were measured on day 7. The numbers of M1, M2, and F4/80+ macrophages were detected on day 1, 3, and 7 in each group. The levels of vascular endothelial growth factor (VEGF) and inflammatory molecules,including intercellular adhesion molecule (ICAM)-1,tumor necrosis factor (TNF)-α, and interleukin 6 (IL-6) were determined by enzyme-linked immunosorbent assay. Cell proliferation, migration, and tube-formation assays were performed in vitro. RESULTS Triptolide at doses of 0.035 mg/kg BW (66,562 ± 39,253 μm2, n = 5, P<0.05) and 0.07 mg/kg BW (37,271 ± 25,182 μm2, n = 5, P<0.001) significantly reduced CNV areas by 54.9 and 74.8 %, respectively, compared with PBS control (147,699 ± 112,900 μm2, n = 5) in a dose-dependent manner. Protein levels of VEGF, ICAM-1, TNF-α, and IL-6 in the RPE-choroid-sclera complex were significantly downregulated by triptolide treatment on day 3, which was in accordance with the reduced number of infiltrated F4/80+ macrophages and the reduced ratio of M2/F4/80+ macrophages. However, no toxic effects of triptolide on the retina or other systemic organs were observed. In addition, triptolide treatment exerted inhibitory effects on cell proliferation, migration, and tube formation in vitro in a concentration-dependent manner. CONCLUSIONS Triptolide has therapeutic potential in CNV owing to its anti-angiogenic effect.
Collapse
Affiliation(s)
- Kunbei Lai
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong, 510060, China
| | - Yajun Gong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong, 510060, China
| | - Wenbo Zhao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong, 510060, China
| | - Longhui Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong, 510060, China
| | - Chuangxin Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong, 510060, China
| | - Fabao Xu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong, 510060, China
| | - Xiaojing Zhong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong, 510060, China
| | - Chenjin Jin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong, 510060, China.
| |
Collapse
|
15
|
Cheng KJ, Hsieh CM, Nepali K, Liou JP. Ocular Disease Therapeutics: Design and Delivery of Drugs for Diseases of the Eye. J Med Chem 2020; 63:10533-10593. [PMID: 32482069 DOI: 10.1021/acs.jmedchem.9b01033] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The ocular drug discovery field has evidenced significant advancement in the past decade. The FDA approvals of Rhopressa, Vyzulta, and Roclatan for glaucoma, Brolucizumab for wet age-related macular degeneration (wet AMD), Luxturna for retinitis pigmentosa, Dextenza (0.4 mg dexamethasone intracanalicular insert) for ocular inflammation, ReSure sealant to seal corneal incisions, and Lifitegrast for dry eye represent some of the major developments in the field of ocular therapeutics. A literature survey also indicates that gene therapy, stem cell therapy, and target discovery through genomic research represent significant promise as potential strategies to achieve tissue repair or regeneration and to attain therapeutic benefits in ocular diseases. Overall, the emergence of new technologies coupled with first-in-class entries in ophthalmology are highly anticipated to restructure and boost the future trends in the field of ophthalmic drug discovery. This perspective focuses on various aspects of ocular drug discovery and the recent advances therein. Recent medicinal chemistry campaigns along with a brief overview of the structure-activity relationships of the diverse chemical classes and developments in ocular drug delivery (ODD) are presented.
Collapse
Affiliation(s)
- Kuei-Ju Cheng
- School of Pharmacy, College of Pharmacy, Taipei Medical University, 250 Wuxing Street, Taipei 11031, Taiwan.,Department of Pharmacy, Taipei Municipal Wanfang Hospital, Taipei Medical University, No. 111, Section 3, Xing-Long Road, Taipei 11696, Taiwan
| | - Chien-Ming Hsieh
- School of Pharmacy, College of Pharmacy, Taipei Medical University, 250 Wuxing Street, Taipei 11031, Taiwan
| | - Kunal Nepali
- School of Pharmacy, College of Pharmacy, Taipei Medical University, 250 Wuxing Street, Taipei 11031, Taiwan
| | - Jing-Ping Liou
- School of Pharmacy, College of Pharmacy, Taipei Medical University, 250 Wuxing Street, Taipei 11031, Taiwan
| |
Collapse
|
16
|
Jacobsen BH, Shah AA, Aggarwal S, Mwanansao C, McFadden M, Zouache MA, Shakoor A. Prevalence of Retinal Diseases and Associated Risk Factors in an African Population From Mwanza, Tanzania. Ophthalmic Surg Lasers Imaging Retina 2020; 51:S17-S25. [PMID: 32484897 DOI: 10.3928/23258160-20200108-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 02/05/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND AND OBJECTIVE To determine the prevalence of retinal disease among a population in Mwanza, Tanzania, and to identify relevant risk factors for retinal disorders in this cohort. PATIENTS AND METHODS A cross-sectional population-based study was conducted in Mwanza, Tanzania, among patients older than 18 years. Participants completed a demographics survey and underwent an ophthalmic examination that included fundus photography. RESULTS Complete data were available for 1,007 (93.8%) of the 1,073 persons examined. The prevalence of vitreoretinal disorders was 22.8% (230/1,007). The leading retinal diseases were age-related macular degeneration (7.0%), hypertensive retinopathy (4.5%), and macular scars (2.7%). CONCLUSION This study is the first population-based study of retinal disease in Mwanza. The findings reveal a considerable burden of retinal disease in this region, suggesting a need for trained local ophthalmic personnel and resources. [Ophthalmic Surg Lasers Imaging Retina. 2020;51:S17-S25.].
Collapse
|
17
|
Maroñas O, García-Quintanilla L, Luaces-Rodríguez A, Fernández-Ferreiro A, Latorre-Pellicer A, Abraldes MJ, Lamas MJ, Carracedo A. Anti-VEGF Treatment and Response in Age-related Macular Degeneration: Disease's Susceptibility, Pharmacogenetics and Pharmacokinetics. Curr Med Chem 2020; 27:549-569. [PMID: 31296152 DOI: 10.2174/0929867326666190711105325] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 06/03/2019] [Accepted: 06/28/2019] [Indexed: 02/06/2023]
Abstract
The current review is focussing different factors that contribute and directly correlate to the onset and progression of Age-related Macular Degeneration (AMD). In particular, the susceptibility to AMD due to genetic and non-genetic factors and the establishment of risk scores, based on the analysis of different genes to measure the risk of developing the disease. A correlation with the actual therapeutic landscape to treat AMD patients from the point of view of pharmacokinetics and pharmacogenetics is also exposed. Treatments commonly used, as well as different regimes of administration, will be especially important in trying to classify individuals as "responders" and "non-responders". Analysis of different genes correlated with drug response and also the emerging field of microRNAs (miRNAs) as possible biomarkers for early AMD detection and response will be also reviewed. This article aims to provide the reader a review of different publications correlated with AMD from the molecular and kinetic point of view as well as its commonly used treatments, major pitfalls and future directions that, to our knowledge, could be interesting to assess and follow in order to develop a personalized medicine model for AMD.
Collapse
Affiliation(s)
- Olalla Maroñas
- Grupo de Medicina Xenomica, Centro Nacional de Genotipado (CEGEN-PRB3), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Laura García-Quintanilla
- Servicio de Farmacia, Xerencia de Xestión Integrada de Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
| | - Andrea Luaces-Rodríguez
- Departamento de Farmacia e Tecnoloxia Farmaceutica e Instituto de Farmacia Industrial, Facultade de Farmacia, Universidade de Santiago de Compostela, Spain.,Grupo de Farmacoloxia Clínica, Instituto de Investigacion en Salud de Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Anxo Fernández-Ferreiro
- Departamento de Farmacia e Tecnoloxia Farmaceutica e Instituto de Farmacia Industrial, Facultade de Farmacia, Universidade de Santiago de Compostela, Spain.,Grupo de Farmacoloxia Clínica, Instituto de Investigacion en Salud de Santiago de Compostela (IDIS), Santiago de Compostela, Spain.,Departamento de Farmacia, Hospital Clínico Universitario de Santiago de Compostela (SERGAS) (CHUS), Santiago de Compostela, Spain
| | - Ana Latorre-Pellicer
- Unidad de Genetica Clínica y Genomica Funcional, Departamento de Farmacologia-Fisiología, Facultad de Medicina, Universidad de Zaragoza, Zaragoza, Spain
| | - Maximino J Abraldes
- Servicio de Oftalmoloxía, Xerencia de Xestion Integrada de Santiago de Compostela, Santiago de Compostela, Spain.,Departamento de Ciruxía e Especialidades Médico- Quirúrxicas, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - María J Lamas
- Grupo de Farmacoloxia Clínica, Instituto de Investigacion en Salud de Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Angel Carracedo
- Grupo de Medicina Xenomica, Centro Nacional de Genotipado (CEGEN-PRB3), Universidade de Santiago de Compostela, Santiago de Compostela, Spain.,Grupo de Medicina Xenómica, Universidade de Santiago de Compostela, CIBER de Enfermedades Raras (CIBERER), Santiago de Compostela, Spain.,Fundación Pública Galega de Medicina Xenómica, SERGAS, Santiago de Compostela, Spain
| |
Collapse
|
18
|
Hart KM, Abbott C, Ly A, Kalff S, Lek JJ, Milston R, Page G, Robertson B, Ayton L. Optometry Australia's chairside reference for the diagnosis and management of age-related macular degeneration. Clin Exp Optom 2019; 103:254-264. [PMID: 31566818 DOI: 10.1111/cxo.12964] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 07/02/2019] [Accepted: 08/02/2019] [Indexed: 01/13/2023] Open
Abstract
Age-related macular degeneration (AMD) is the leading cause of irreversible vision loss in people over the age of 50 years in Australia. Optometry Australia has developed this AMD chairside reference in consultation with a member-based working group comprised of experienced practitioners. It provides an evidence-based approach to current best practice in the diagnosis and management of AMD. Optometrists should be competent in assessing patients with or at risk of developing AMD, so that they are able to provide evidence-based management including appropriate communication, diagnosis and referral when indicated. This AMD chairside reference covers risk factors for the development of AMD or progression to late-stage AMD; the current clinical classification of AMD; common signs and symptoms; optometric assessment including ocular imaging and biomarkers; differential diagnoses; and management of early, intermediate and late AMD. Optometry Australia's chairside reference is intended as a general guide for optometrists, and is not a formal management protocol.
Collapse
Affiliation(s)
- Kerryn M Hart
- Member Support and Optometry Advancement, Optometry Australia, Melbourne, Australia.,School of Medicine (Optometry), Faculty of Health, Deakin University, Geelong, Australia
| | - Carla Abbott
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Australia.,Department of Surgery (Ophthalmology), Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Australia
| | - Angelica Ly
- Centre for Eye Health, The University of New South Wales, Sydney, Australia
| | | | - Jia Jia Lek
- Department of Optometry and Vision Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Australia
| | - Rebecca Milston
- Centre for Eye Health, The University of New South Wales, Sydney, Australia
| | - Gary Page
- Private Practitioner, Townsville, Australia
| | | | - Lauren Ayton
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Australia.,Department of Surgery (Ophthalmology), Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Australia.,Department of Optometry and Vision Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Australia
| |
Collapse
|
19
|
Ma L, Ng TK, Chen H, Brelén ME, Lai TYY, Ho M, Tam POS, Young AL, Chen W, Tham CC, Pang CP, Chen LJ. Identification and characterization of a novel promoter variant in placental growth factor for neovascular age-related macular degeneration. Exp Eye Res 2019; 187:107748. [PMID: 31377148 DOI: 10.1016/j.exer.2019.107748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 06/20/2019] [Accepted: 07/26/2019] [Indexed: 02/05/2023]
Abstract
PURPOSE Intronic variants in the placental growth factor (PGF) gene have been associated with neovascular age-related macular degeneration (AMD). This study is to discover and characterize rare variants in the PGF gene for neovascular AMD. METHODS The promoter region, coding sequences and splicing regions of the PGF gene were sequenced in a Hong Kong southern Chinese cohort of 235 neovascular AMD patients and 435 controls. A detected 18 base-pair deletion variant in the promoter region of PGF was analyzed in a Shantou southern Chinese cohort of 189 neovascular AMD patients and 846 controls. The transcription activity of this disease-associated promoter variant was determined in human ARPE-19 cells by promoter-luciferase analysis. RESULTS A novel 18-base-pair deletion mutation in the promoter region of PGF was identified in 3 (1.28%) patients and 1 (0.23%) control subject (OR = 5.61; 95% CI 0.58-54.26) in the Hong Kong cohort, and in 2 (1.06%) patients and 2 (0.24%) controls (OR = 4.51; 95% CI: 0.63-32.25) in the Shantou cohort. In the combined southern Chinese sample, this deletion had a significant association with neovascular AMD (P = 0.026; OR = 5.08, 95% CI: 1.21-21.36). The 18-base-pair deletion was predicted to alter the transcription factor binding sites in the PGF promoter, and higher luciferase expression was detected in ARPE-19 cells transfected with the deletion variant plasmid than those transfected with wild type plasmid (P = 0.0002). CONCLUSIONS This study identified a rare, functional promoter variant in the PGF gene that increases PGF transcription activity and confers a 5-fold risk to neovascular AMD.
Collapse
Affiliation(s)
- Li Ma
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Tsz Kin Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China
| | - Haoyu Chen
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Marten E Brelén
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Timothy Y Y Lai
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Mary Ho
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Pancy O S Tam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Weiqi Chen
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China.
| |
Collapse
|
20
|
Yu H, Li J, Hu X, Feng J, Wang H, Xiong F. Protective effects of cynaroside on oxidative stress in retinal pigment epithelial cells. J Biochem Mol Toxicol 2019; 33:e22352. [DOI: 10.1002/jbt.22352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 04/04/2019] [Accepted: 05/16/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Haoli Yu
- State Key Laboratory of Bioelectronics, Jiangsu Laboratory for Biomaterials and Devices, School of Biological Science and Medical EngineeringSoutheast University Nanjing China
| | - Junyan Li
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese PharmacyChina Pharmaceutical University Nanjing China
| | - Xiaolong Hu
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese PharmacyChina Pharmaceutical University Nanjing China
| | - Jiahao Feng
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese PharmacyChina Pharmaceutical University Nanjing China
| | - Hao Wang
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese PharmacyChina Pharmaceutical University Nanjing China
| | - Fei Xiong
- State Key Laboratory of Bioelectronics, Jiangsu Laboratory for Biomaterials and Devices, School of Biological Science and Medical EngineeringSoutheast University Nanjing China
| |
Collapse
|
21
|
Solomon SD, Lindsley K, Vedula SS, Krzystolik MG, Hawkins BS. Anti-vascular endothelial growth factor for neovascular age-related macular degeneration. Cochrane Database Syst Rev 2019; 3:CD005139. [PMID: 30834517 PMCID: PMC6419319 DOI: 10.1002/14651858.cd005139.pub4] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Age-related macular degeneration (AMD) is the most common cause of uncorrectable severe vision loss in people aged 55 years and older in the developed world. Choroidal neovascularization (CNV) secondary to AMD accounts for most cases of AMD-related severe vision loss. Intravitreous injection of anti-vascular endothelial growth factor (anti-VEGF) agents aims to block the growth of abnormal blood vessels in the eye to prevent vision loss and, in some instances, to improve vision. OBJECTIVES • To investigate ocular and systemic effects of, and quality of life associated with, intravitreous injection of three anti-VEGF agents (pegaptanib, ranibizumab, and bevacizumab) versus no anti-VEGF treatment for patients with neovascular AMD• To compare the relative effects of one of these anti-VEGF agents versus another when administered in comparable dosages and regimens SEARCH METHODS: To identify eligible studies for this review, we searched the Cochrane Central Register of Controlled Trials (CENTRAL), which contains the Cochrane Eyes and Vision Trials Register (searched January 31, 2018); MEDLINE Ovid (1946 to January 31, 2018); Embase Ovid (1947 to January 31, 2018); the Latin American and Caribbean Health Sciences Literature Database (LILACS) (1982 to January 31, 2018); the International Standard Randomized Controlled Trials Number (ISRCTN) Registry (www.isrctn.com/editAdvancedSearch - searched January 31, 2018); ClinicalTrials.gov (www.clinicaltrials.gov - searched November 28, 2018); and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP) (www.who.int/ictrp/search/en - searched January 31, 2018). We did not impose any date or language restrictions in electronic searches for trials. SELECTION CRITERIA We included randomized controlled trials (RCTs) that evaluated pegaptanib, ranibizumab, or bevacizumab versus each other or versus a control treatment (e.g. sham treatment, photodynamic therapy), in which participants were followed for at least one year. DATA COLLECTION AND ANALYSIS Two review authors independently screened records, extracted data, and assessed risks of bias. We contacted trial authors for additional data. We compared outcomes using risk ratios (RRs) or mean differences (MDs). We used the standard methodological procedures expected by Cochrane. MAIN RESULTS We included 16 RCTs that had enrolled a total of 6347 participants with neovascular AMD (the number of participants per trial ranged from 23 to 1208) and identified one potentially relevant ongoing trial. Six trials compared anti-VEGF treatment (pegaptanib, ranibizumab, or bevacizumab) versus control, and 10 trials compared bevacizumab versus ranibizumab. Pharmaceutical companies conducted or sponsored four trials but funded none of the studies that evaluated bevacizumab. Researchers conducted these trials at various centers across five continents (North and South America, Europe, Asia, and Australia). The overall certainty of the evidence was moderate to high, and most trials had an overall low risk of bias. All but one trial had been registered prospectively.When compared with those who received control treatment, more participants who received intravitreous injection of any of the three anti-VEGF agents had gained 15 letters or more of visual acuity (risk ratio [RR] 4.19, 95% confidence interval [CI] 2.32 to 7.55; moderate-certainty evidence), had lost fewer than 15 letters of visual acuity (RR 1.40, 95% CI 1.27 to 1.55; high-certainty evidence), and showed mean improvement in visual acuity (mean difference 6.7 letters, 95% CI 4.4 to 9.0 in one pegaptanib trial; mean difference 17.8 letters, 95% CI 16.0 to 19.7 in three ranibizumab trials; moderate-certainty evidence) after one year of follow-up. Participants treated with anti-VEGF agents showed improvement in morphologic outcomes (e.g. size of CNV, central retinal thickness) compared with participants not treated with anti-VEGF agents (moderate-certainty evidence). No trial directly compared pegaptanib versus another anti-VEGF agent and followed participants for one year; however, when compared with control treatments, ranibizumab and bevacizumab each yielded larger improvements in visual acuity outcomes than pegaptanib.Visual acuity outcomes after bevacizumab and ranibizumab were similar when the same RCTs compared the same regimens with respect to gain of 15 or more letters of visual acuity (RR 0.95, 95% CI 0.81 to 1.12; high-certainty evidence) and loss of fewer than 15 letters of visual acuity (RR 1.00, 95% CI 0.98 to 1.02; high-certainty evidence); results showed similar mean improvement in visual acuity (mean difference [MD] -0.5 letters, 95% CI -1.5 to 0.5; high-certainty evidence) after one year of follow-up, despite the substantially lower cost of bevacizumab compared with ranibizumab. Reduction in central retinal thickness was less among bevacizumab-treated participants than among ranibizumab-treated participants after one year (MD -11.6 μm, 95% CI -21.6 to -1.7; high-certainty evidence); however, this difference is within the range of measurement error, and we did not interpret it to be clinically meaningful.Ocular inflammation and increased intraocular pressure (IOP) after intravitreal injection were the most frequently reported serious ocular adverse events. Researchers reported endophthalmitis in less than 1% of anti-VEGF-treated participants and in no cases among control groups. The occurrence of serious systemic adverse events was comparable across anti-VEGF-treated groups and control groups; however, the numbers of events and trial participants may have been insufficient to show a meaningful difference between groups (evidence of low- to moderate-certainty). Investigators rarely measured and reported data on visual function, quality of life, or economic outcomes. AUTHORS' CONCLUSIONS Results of this review show the effectiveness of anti-VEGF agents (pegaptanib, ranibizumab, and bevacizumab) in terms of maintaining visual acuity; studies show that ranibizumab and bevacizumab improved visual acuity in some eyes that received these agents and were equally effective. Available information on the adverse effects of each medication does not suggest a higher incidence of potentially vision-threatening complications with intravitreous injection of anti-VEGF agents compared with control interventions; however, clinical trial sample sizes were not sufficient to estimate differences in rare safety outcomes. Future Cochrane Reviews should incorporate research evaluating variable dosing regimens of anti-VEGF agents, effects of long-term use, use of combination therapies (e.g. anti-VEGF treatment plus photodynamic therapy), and other methods of delivering these agents.
Collapse
Affiliation(s)
- Sharon D Solomon
- Johns Hopkins University School of MedicineWilmer Eye Institute600 North Wolfe StreetMaumenee 740BaltimoreMarylandUSA21287
| | - Kristina Lindsley
- Johns Hopkins Bloomberg School of Public HealthDepartment of Epidemiology615 North Wolfe Street, Mail Room E6132BaltimoreMarylandUSA21205
| | | | - Magdalena G Krzystolik
- Mass Eye and Ear InfirmaryDepartment of Ophthalmology, Retina Service1 Randall Square, Suite 203ProvidenceRhode IslandUSA02904
| | - Barbara S Hawkins
- Johns Hopkins University School of MedicineWilmer Eye Institute600 North Wolfe StreetMaumenee 740BaltimoreMarylandUSA21287
| | | |
Collapse
|
22
|
Castellino N, Longo A, Avitabile T, Russo A, Fallico M, Bonfiglio V, Toro MD, Rejdak R, Nowomiejska K, Murabito P, Furino C, Reibaldi M. Circulating insulin-like growth factor-1: a new clue in the pathogenesis of age-related macular degeneration. Aging (Albany NY) 2018; 10:4241-4247. [PMID: 30594908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 12/12/2018] [Indexed: 06/09/2023]
Abstract
In order to investigate Insulin-like growth factor-1 (IGF-1) blood levels in male and female age-matched patients affected by early, intermediate, neovascular age related macular degeneration (AMD) and healthy subjects (no AMD) were enrolled in a prospective, observational study. All patients enrolled were classified according to 4 stages classification of AMD from Age-related eye disease study (AREDS). Each subject underwent a complete ophthalmic examination including best corrected visual acuity (BCVA), applanation tonometry, slit-lamp biomicroscopic examination, color fundus photography, optical coherence tomography (OCT) and, if needed, fluorescein angiography. Overall, 224 anti-VEGF naïve subjects including 56 patients in early AMD group, 56 patients in intermediate AMD group, 56 patients in neovascular AMD group and 56 patients in no AMD group were recruited. For each group 28 male patients and 28 female patients were enrolled. IGF-1 hematic levels were significantly higher (p<0.005) in the neovascular AMD group and in the intermediate AMD group in comparison to no AMD group; no significant difference between early AMD group and no AMD group was found. Our analysis has shown an increment of IGF-1 levels in both neovascular and intermediate stage of AMD supporting the hypothesis that IGF-1 may play a role in the pathogenesis of AMD.
Collapse
Affiliation(s)
| | - Antonio Longo
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
| | | | - Andrea Russo
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
| | - Matteo Fallico
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
| | | | - Mario Damiano Toro
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
- Department of General Ophthalmology, Medical University in Lublin, Lublin, Poland
| | - Robert Rejdak
- Department of General Ophthalmology, Medical University in Lublin, Lublin, Poland
| | | | - Paolo Murabito
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
| | | | - Michele Reibaldi
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
| |
Collapse
|
23
|
Castellino N, Longo A, Avitabile T, Russo A, Fallico M, Bonfiglio V, Toro MD, Rejdak R, Nowomiejska K, Murabito P, Furino C, Reibaldi M. Circulating insulin-like growth factor-1: a new clue in the pathogenesis of age-related macular degeneration. Aging (Albany NY) 2018; 10:4241-4247. [PMID: 30594908 PMCID: PMC6326648 DOI: 10.18632/aging.101727] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 12/12/2018] [Indexed: 07/04/2023]
Abstract
In order to investigate Insulin-like growth factor-1 (IGF-1) blood levels in male and female age-matched patients affected by early, intermediate, neovascular age related macular degeneration (AMD) and healthy subjects (no AMD) were enrolled in a prospective, observational study. All patients enrolled were classified according to 4 stages classification of AMD from Age-related eye disease study (AREDS). Each subject underwent a complete ophthalmic examination including best corrected visual acuity (BCVA), applanation tonometry, slit-lamp biomicroscopic examination, color fundus photography, optical coherence tomography (OCT) and, if needed, fluorescein angiography. Overall, 224 anti-VEGF naïve subjects including 56 patients in early AMD group, 56 patients in intermediate AMD group, 56 patients in neovascular AMD group and 56 patients in no AMD group were recruited. For each group 28 male patients and 28 female patients were enrolled. IGF-1 hematic levels were significantly higher (p<0.005) in the neovascular AMD group and in the intermediate AMD group in comparison to no AMD group; no significant difference between early AMD group and no AMD group was found. Our analysis has shown an increment of IGF-1 levels in both neovascular and intermediate stage of AMD supporting the hypothesis that IGF-1 may play a role in the pathogenesis of AMD.
Collapse
Affiliation(s)
| | - Antonio Longo
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
| | | | - Andrea Russo
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
| | - Matteo Fallico
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
| | | | - Mario Damiano Toro
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
- Department of General Ophthalmology, Medical University in Lublin, Lublin, Poland
| | - Robert Rejdak
- Department of General Ophthalmology, Medical University in Lublin, Lublin, Poland
| | | | - Paolo Murabito
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
| | | | - Michele Reibaldi
- Policlinico Gaspare Rodolico-University of Catania, Catania, Italy
| |
Collapse
|
24
|
Desmettre T. [Epigenetics in age-related macular degeneration (AMD) - French translation of the article]. J Fr Ophtalmol 2018; 41:981-990. [PMID: 30454959 DOI: 10.1016/j.jfo.2018.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/02/2018] [Accepted: 06/07/2018] [Indexed: 02/02/2023]
Abstract
Age-related macular degeneration (AMD) is a complex multifactorial condition involving multiple genetic, environmental and constitutional factors. Inflammation, oxidative stress and lipid metabolism seem to be the most important factors in the pathogenesis of the disease. The importance of genetic factors has mainly been revealed with the influence of histocompatibility complement factor H (CFH) variations and the ARSM2 susceptibility gene. Another component, epigenetics, could help to explain some of the relationships between environmental and genetic factors. Epigenetics is defined as the study of modulations of gene activity that can be transmitted over cell divisions without involving mutation of the DNA sequence. The molecules that are involved in these mechanisms are referred to as the epigenome. The mechanisms involve DNA methylation, histone modification, chromatin remodeling, and gene inhibition by non-coding RNA. Epigenetics could explain how the environment may induce relatively stable changes in traits or even diseases, possibly inheritable over several generations. Epigenetic traits established during development, and/or acquired under the influence of nutritional factors or other environmental factors, could influence the interactions between genes and the environment. Several authors have recently shown the influence of epigenetic factors in the pathogenesis of ocular diseases such as cataract, dry eye, glaucoma, diabetic retinopathy and more recently AMD. A better understanding of the involvement of genetic variants at risk, their relationship with epigenetics and environmental factors would certainly help to better assess the risk of developing AMD or better understand recent changes in the incidence of the disease.
Collapse
Affiliation(s)
- T Desmettre
- Centre de rétine médicale, 187, rue de Menin, 59520 Marquette-Lez-Lille, France; London International Medical Centre, 18-22 Queen Anne Street, London, W1G 8HU, Royaume-Uni.
| |
Collapse
|
25
|
Desmettre TJ. Epigenetics in Age-related Macular Degeneration (AMD). J Fr Ophtalmol 2018; 41:e407-e415. [PMID: 30458925 DOI: 10.1016/j.jfo.2018.09.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 09/04/2018] [Indexed: 01/03/2023]
Abstract
Age-related Macular Degeneration (AMD) is a complex multifactorial condition involving multiple genetic, environmental and constitutional factors. Inflammation, oxidative stress and lipid metabolism seem to be the most important factors in the pathogenesis of the disease. The importance of genetic factors has mainly been revealed with the influence of histocompatibility complement factor H (CFH) variations and the ARSM2 susceptibility gene. Another component, epigenetics, could help to explain some of the relationships between environmental and genetic factors. Epigenetics is defined as the study of modulations of gene activity that can be transmitted over cell divisions without involving mutation of the DNA sequence. The molecules that are involved in these mechanisms are referred to as the epigenome. The mechanisms involve DNA methylation, histone modification, chromatin remodeling, and gene inhibition by non-coding RNA. Epigenetics could explain how the environment may induce relatively stable changes in traits or even diseases, possibly inheritable over several generations. Epigenetic traits established during development, and/or acquired under the influence of nutritional factors or other environmental factors, could influence the interactions between genes and the environment. Several authors have recently shown the influence of epigenetic factors in the pathogenesis of ocular diseases such as cataract, dry eye, glaucoma, diabetic retinopathy and more recently AMD. A better understanding of the involvement of genetic variants at risk, their relationship with epigenetics and environmental factors would certainly help to better assess the risk of developing AMD or better understand recent changes in the incidence of the disease.
Collapse
Affiliation(s)
- T J Desmettre
- Centre de rétine médicale, 187, rue de Menin, 59520 Marquette-Lez-Lille, France; London International Medical Centre, 18-22 Queen Anne Street, London, W1G 8HU, United Kingdom.
| |
Collapse
|
26
|
Zhang J, Li S, Hu S, Yu J, Xiang Y. Association between genetic variation of complement C3 and the susceptibility to advanced age-related macular degeneration: a meta-analysis. BMC Ophthalmol 2018; 18:274. [PMID: 30352574 PMCID: PMC6199710 DOI: 10.1186/s12886-018-0945-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 10/16/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The purpose of this study is to discuss whether genetic variants (rs2230199, rs1047286, rs2230205, and rs2250656) in the C3 gene account for a significant risk of advanced AMD. METHODS We performed a meta-analysis using electronic databases to search relevant articles. A total of 40 case-control studies from 38 available articles (20,673 cases and 20,025 controls) were included in our study. RESULTS In our meta-analysis, the pooled results showed that the carriage of G allele for rs2230199 and the T allele for rs1047286 had a tendency to the risk of advanced AMD (OR = 1.49, 95% CI = 1.39-1.59, P < 0.001; OR = 1.45, 95% CI = 1.37-1.54, P < 0.001). Moreover, in the subgroup analysis based on ethnicity, rs2230199 and rs1047286 polymorphisms were more likely to be a predictor of response for Caucasian region (OR = 1.48, 95% CI = 1.38-1.59, P < 0.001; OR = 1.45, 95% CI = 1.37-1.54, P < 0.001). Besides, pooled results suggested that the G allele of rs2230199 could confer susceptibility to advanced AMD in Middle East (OR = 1.62, 95% CI = 1.33-1.97, P < 0.001). CONCLUSION In our meta-analysis, C3 genetic polymorphisms unveiled a positive effect on the risk of advanced AMD, especially in Caucasians. Furthermore, numerous well-designed studies with large sample-size are required to validate this conclusion.
Collapse
Affiliation(s)
- Jun Zhang
- Department of Ophthalmology, the Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, NO, 26 Shengli Street, Wuhan, 430014, Hubei Province, China
| | - Shuang Li
- Department of Ophthalmology, the Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, NO, 26 Shengli Street, Wuhan, 430014, Hubei Province, China
| | - Shuqiong Hu
- Department of Ophthalmology, the Jingzhou aier eye hospital, Jingzhou, Hubei Province, China
| | - Jiguo Yu
- Department of Ophthalmology, the Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, NO, 26 Shengli Street, Wuhan, 430014, Hubei Province, China
| | - Yi Xiang
- Department of Ophthalmology, the Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, NO, 26 Shengli Street, Wuhan, 430014, Hubei Province, China.
| |
Collapse
|
27
|
McGill TJ, Stoddard J, Renner LM, Messaoudi I, Bharti K, Mitalipov S, Lauer A, Wilson DJ, Neuringer M. Allogeneic iPSC-Derived RPE Cell Graft Failure Following Transplantation Into the Subretinal Space in Nonhuman Primates. Invest Ophthalmol Vis Sci 2018; 59:1374-1383. [PMID: 29625461 PMCID: PMC5846443 DOI: 10.1167/iovs.17-22467] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Purpose To characterize the intraocular immune response following transplantation of iPS-derived allogeneic RPE cells into the subretinal space of non–immune-suppressed rhesus macaques. Methods GFP-labeled allogeneic iPS-derived RPE cells were transplanted into the subretinal space of one eye (n = 6), and into the contralateral eye 1 day to 4 weeks later, using a two-stage transretinal and transscleral approach. Retinas were examined pre- and post-surgery by color fundus photography, fundus autofluorescence, and optical coherence tomography (OCT) imaging. Animals were euthanized between 2 hours and 7 weeks following transplantation. T-cell (CD3), B-cell (CD20), and microglial (Iba1) responses were assessed immunohistochemically. Results Cells were delivered into the subretinal space in all eyes without leakage into the vitreous. Transplanted RPE cells were clearly visible at 4 days after surgery but were no longer detectable by 3 weeks. In localized areas within the bleb containing transplanted cells, T- and B-cell infiltrates and microglia were observed in the subretinal space and underlying choroid. A T-cell response predominated at 4 days, but converted to a B-cell response at 3 weeks. By 7 weeks, few infiltrates or microglia remained. Host RPE and choroid were disrupted in the immediate vicinity of the graft, with fibrosis in the subretinal space. Conclusions Engraftment of allogeneic RPE cells failed following transplantation into the subretinal space of rhesus macaques, likely due to rejection by the immune system. These data underscore the need for autologous cell sources and/or confirmation of adequate immune suppression to ensure survival of transplanted RPE cells.
Collapse
Affiliation(s)
- Trevor J McGill
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States.,Department of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, United States
| | - Jonathan Stoddard
- Department of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, United States
| | - Lauren M Renner
- Department of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, United States
| | - Ilhem Messaoudi
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, California, United States
| | - Kapil Bharti
- Unit on Ocular and Stem Cell Translational Research, National Eye Institute/National Institutes of Health, Bethesda, Maryland, United States
| | - Shoukhrat Mitalipov
- Department of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, United States
| | - Andreas Lauer
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - David J Wilson
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Martha Neuringer
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States.,Department of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, United States
| |
Collapse
|
28
|
Hao X, Cheng J, Zhang Z. Polymorphisms in PEDF linked with the susceptibility to age-related macular degeneration: A case-control study. Medicine (Baltimore) 2018; 97:e11981. [PMID: 30142832 PMCID: PMC6113020 DOI: 10.1097/md.0000000000011981] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
To study the relationship between pigment epithelium-derived factor (PEDF) rs1136287, rs1894286 polymorphisms and the risk of age-related macular degeneration (AMD) in northern Chinese populations.The study was carried out on case-control methods. Ninety-six patients with AMD and 98 health controls were recruited who were matched with the former by age and gender, rs1136287 and rs1894286 were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Hardy-Weinberg equilibrium (HWE) was also checked by χ test. The distribution frequencies of genotype, allele, and haplotype were calculated by direct counting method. The genotype, allele, and haplotype distribution differences between the case and control groups were analyzed by chi-square test, and odds ratio (OR) and 95% confidence interval (CI) was used to express the relative risk of AMD in northern Chinese populations. The linkage disequilibrium (LD) and haplotype analyses were conducted with Haploview software.The genotype and allele distribution frequencies in rs1136287 were obviously between in cases and controls (P < .05). TT genotype might lead to 3.24 times risk of AMD occurrence compared with CC genotype (OR = 3.24, 95% CI = 1.26-8.32), and C allele also played an increased risk role in the attack of AMD (OR = 1.58, 95% CI = 1.06-2.38). The T-C haplotype frequency of rs1136287-rs1894286 in PEDF were significantly correlated to the increased susceptibility to AMD (OR = 1.57, 95% CI = 1.02-2.40).The rs1136287 polymorphism in PEDF may be related to the occurrence risk of AMD. Additionally, a haplotype is also a non-ignorable risk factor.
Collapse
|
29
|
Warwick A, Lotery A. Genetics and genetic testing for age-related macular degeneration. Eye (Lond) 2018; 32:849-857. [PMID: 29125146 PMCID: PMC5944647 DOI: 10.1038/eye.2017.245] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 10/09/2017] [Indexed: 12/21/2022] Open
Abstract
Considerable advances have been made in our understanding of age-related macular degeneration (AMD) genetics over the past decade. The genetic associations discovered to date are estimated to account for approximately half of AMD heritability, and functional studies of these variants have revealed new insights into disease pathogenesis, leading to the development of potential novel therapies. There is furthermore growing interest in genetic testing for predicting an individual's risk of AMD and offering personalised preventive or therapeutic treatments. We review the progress made so far in AMD genetics and discuss the possible applications for genetic testing.
Collapse
Affiliation(s)
| | - A Lotery
- Clinical Neurosciences Research Group, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK.
| |
Collapse
|
30
|
Seddon JM. Macular Degeneration Epidemiology: Nature-Nurture, Lifestyle Factors, Genetic Risk, and Gene-Environment Interactions - The Weisenfeld Award Lecture. Invest Ophthalmol Vis Sci 2018; 58:6513-6528. [PMID: 29288272 PMCID: PMC5749242 DOI: 10.1167/iovs.17-23544] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Johanna M Seddon
- Ophthalmic Epidemiology and Genetics Service, Tufts Medical Center, Boston, Massachusetts, United States.,Department of Ophthalmology, Tufts University School of Medicine, Boston, Massachusetts, United States.,Sackler School of Graduate Biomedical Sciences and Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, United States
| |
Collapse
|
31
|
Conedera FM, Arendt P, Trepp C, Tschopp M, Enzmann V. Müller Glia Cell Activation in a Laser-induced Retinal Degeneration and Regeneration Model in Zebrafish. J Vis Exp 2017. [PMID: 29155720 DOI: 10.3791/56249] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
A fascinating difference between teleost and mammals is the lifelong potential of the teleost retina for retinal neurogenesis and regeneration after severe damage. Investigating the regeneration pathways in zebrafish might bring new insights to develop innovative strategies for the treatment of retinal degenerative diseases in mammals. Herein, we focused on the induction of a focal lesion to the outer retina in adult zebrafish by means of a 532 nm diode laser. A localized injury allows investigating biological processes that take place during retinal degeneration and regeneration directly at the area of damage. Using non-invasive optical coherence tomography (OCT), we were able to define the location of the damaged area and monitor subsequent regeneration in vivo. Indeed, OCT imaging produces high-resolution, cross-sectional images of the zebrafish retina, providing information which was previously only available with histological analyses. In order to confirm the data from real-time OCT, histological sections were performed and regenerative response after the induction of the retinal injury was investigated by immunohistochemistry.
Collapse
Affiliation(s)
- Federica M Conedera
- Department of Ophthalmology, University Hospital of Bern, University of Bern; Department of Clinical Research, University of Bern; Graduate School for Cellular and Biomedical Sciences, University of Bern
| | - Petra Arendt
- Department of Ophthalmology, University Hospital of Bern, University of Bern
| | - Carolyn Trepp
- Department of Ophthalmology, University Hospital of Bern, University of Bern; Department of Clinical Research, University of Bern; Graduate School for Cellular and Biomedical Sciences, University of Bern
| | - Markus Tschopp
- Department of Ophthalmology, University Hospital of Bern, University of Bern
| | - Volker Enzmann
- Department of Ophthalmology, University Hospital of Bern, University of Bern; Department of Clinical Research, University of Bern;
| |
Collapse
|
32
|
Strzalka-Mrozik B, Kimsa-Furdzik M, Kabiesz A, Michalska-Malecka K, Nita M, Mazurek U. Gene expression levels of the insulin-like growth factor family in patients with AMD before and after ranibizumab intravitreal injections. Clin Interv Aging 2017; 12:1401-1408. [PMID: 28919726 PMCID: PMC5592959 DOI: 10.2147/cia.s135030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Purpose The present study focused on the assessment of the mRNA levels of the insulin-like growth factor (IGF) family in patients with the exudative form of age-related macular degeneration (AMD) before and after ranibizumab intravitreal injections. Patients and methods An analysis of the expression profile of the IGF family of genes in patients with AMD was carried out using the oligonucleotide microarray and quantitative reverse transcriptase polymerase chain reaction (RT-qPCR) methods. Results In the peripheral blood mononuclear cells (PBMCs) obtained from AMD group receiving ranibizumab compared to the peripheral blood mononuclear cells from AMD group before ranibizumab treatment using oligonucleotide microarray technique, six statistically significant differentially expressed transcripts related to the IGF family were detected (unpaired t-test, p<0.05, fold change >1.5). Moreover, analysis using the real-time RT-qPCR technique revealed statistically significant differences in the IGF2 and IGF2R mRNA levels (Mann–Whitney U test, p<0.05) between the two groups that were studied. Statistical analyses of both oligonucleotide microarray and real-time RT-qPCR results demonstrated a significant decreased expression only for IGF2 mRNA. Conclusion Our results revealed a changed expression of IGF2 mRNA after ranibizumab treatment.
Collapse
Affiliation(s)
- Barbara Strzalka-Mrozik
- Department of Molecular Biology, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Malgorzata Kimsa-Furdzik
- Department of Biochemistry, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Adam Kabiesz
- University Center for Ophthalmology and Oncology, Independent Public Clinical Hospital, Medical University of Silesia, Katowice, Poland
| | - Katarzyna Michalska-Malecka
- University Center for Ophthalmology and Oncology, Independent Public Clinical Hospital, Medical University of Silesia, Katowice, Poland.,Department of Ophthalmology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Malgorzata Nita
- Domestic and Specialized Medicine Centre "Dilmed", Katowice, Poland
| | - Urszula Mazurek
- Department of Molecular Biology, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| |
Collapse
|
33
|
Abstract
Background Visual impairment in elderly people is a considerable health problem that significantly affects quality of life of millions worldwide. The magnitude of this issue is becoming more evident with an aging population and an increasing number of older individuals. Objective The objective of this article was to review the clinical and pathological aspects of age-related macular degeneration (AMD), diagnostic tools, and therapeutic modalities presently available or underway for both atrophic and wet forms of the disease. Methods An online review of the PubMed database was performed, searching for the key words. The search was limited to articles published since 1980 to date. Results Several risk factors have been linked to AMD, such as age (>60 years), lifestyle (smoking and diet), and family history. Although the pathogenesis of AMD remains unclear, genetic factors have been implicated in the condition. Treatment for atrophic AMD is mainly close observation, coupled with nutritional supplements such as zinc and antioxidants, whereas treatment of wet AMD is based on targeting choroidal neovascular membranes. Conclusion Identification of modifiable risk factors would improve the possibilities of preventing the progression of AMD. The role of anti-vascular endothelial growth factor (anti-VEGF) agents has transformed the therapeutic approach of the potentially blinding disease “wet AMD” into a more favorable outcome.
Collapse
Affiliation(s)
- Waseem M Al-Zamil
- Department of Ophthalmology, Imam Abdulrahman Bin Faisal University, Al-Khobar, Saudi Arabia
| | - Sanaa A Yassin
- Department of Ophthalmology, Imam Abdulrahman Bin Faisal University, Al-Khobar, Saudi Arabia
| |
Collapse
|
34
|
Zhou YL, Chen CL, Wang YX, Tong Y, Fang XL, Li L, Wang ZY. Association between polymorphism rs11200638 in the HTRA1 gene and the response to anti-VEGF treatment of exudative AMD: a meta-analysis. BMC Ophthalmol 2017; 17:97. [PMID: 28637435 PMCID: PMC5480205 DOI: 10.1186/s12886-017-0487-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 06/08/2017] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Anti-angiogenesis treatments are the most commonly used treatments for the vision loss caused by exudative age-related macular degeneration (AMD), in which the anti-vascular endothelial growth factor (VEGF) drugs with ranibizumab and bevacizumab are current standard treatments. However, the outcome of anti-VEGF therapeutics is not uniform in all patients. METHODS We performed a literature-based meta-analysis including, five published studies relevant to HTRA1 and response to anti-VEGF treatment (bevacizumab or ranibizumab). Summary odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using fixed- and random-effects models. Sensitivity analysis and meta-regression were also performed. Q-statistic test and Egger's test was used to evaluate heterogeneity and publication bias respectively. RESULTS Overall, no association between the rs11200638 polymorphism in HTRA1 gene and the anti-VEGF treatment response was found in the genotype GG versus AA (OR = 1.06; 95% CI: 0.77 to 1.48; P = 0.98), genotype GA versus AA (OR = 1.11; 95% CI: 0.83 to 1.47; P = 0.93), genotype GG + GA versus AA (OR = 1.22; 95% CI: 0.94 to 1.57; P = 0.09), and allele G versus A (OR = 0.92; 95% CI: 0.78 to 1.08; P = 0.14). In the subgroup analysis by ethnicity Caucasian population, and a significant association was still not observed in all genetic models. Sensitivity analysis indicated the robustness of our findings, and no publication bias was observed in our meta-analysis. CONCLUSIONS This study shows that there was no association between the polymorphism rs11200638 in HTRA1 gene and response to anti-VEGF treatment of exudative AMD. However, more studies are needed to further prove the conclusion of present study, especially well-designed and high quality randomised controlled trials or intervention studies.
Collapse
Affiliation(s)
- Ya-li Zhou
- Department of Ophthalmology, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011 China
| | - Chun-li Chen
- Department of Ophthalmology, Shengli Oilfield Central Hospital, Dongying, Shandong China
| | - Yi-xiao Wang
- Department of Ophthalmology, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011 China
| | - Yao Tong
- Department of Ophthalmology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiao-ling Fang
- Department of Ophthalmology, Shanghai Eye Hospital, Shanghai, China
| | - Lin Li
- Department of Ophthalmology, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011 China
| | - Zhao-yang Wang
- Department of Ophthalmology, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011 China
| |
Collapse
|
35
|
Adeno-Associated Viral Vector-Mediated mTOR Inhibition by Short Hairpin RNA Suppresses Laser-Induced Choroidal Neovascularization. MOLECULAR THERAPY-NUCLEIC ACIDS 2017; 8:26-35. [PMID: 28918027 PMCID: PMC5477068 DOI: 10.1016/j.omtn.2017.05.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 05/29/2017] [Accepted: 05/29/2017] [Indexed: 12/20/2022]
Abstract
Choroidal neovascularization (CNV) is the defining characteristic feature of the wet subtype of age-related macular degeneration (AMD) and may result in irreversible blindness. Based on anti-vascular endothelial growth factor (anti-VEGF), the current therapeutic approaches to CNV are fraught with difficulties, and mammalian target of rapamycin (mTOR) has recently been proposed as a possible therapeutic target, although few studies have been conducted. Here, we show that a recombinant adeno-associated virus-delivered mTOR-inhibiting short hairpin RNA (rAAV-mTOR shRNA), which blocks the activity of both mTOR complex 1 and 2, represents a promising therapeutic approach for the treatment of CNV. Eight-week-old male C57/B6 mice were treated with the short hairpin RNA (shRNA) after generating CNV lesions in the eyes via laser photocoagulation. The recombinant adeno-associated virus (rAAV) delivery vehicle was able to effectively transduce cells in the inner retina, and significantly fewer inflammatory cells and less extensive CNV were observed in the animals treated with rAAV-mTOR shRNA when compared with control- and rAAV-scrambled shRNA-treated groups. Presumably related to the reduction of CNV, increased autophagy was detected in CNV lesions treated with rAAV-mTOR shRNA, whereas significantly fewer apoptotic cells detected in the outer nuclear layer around the CNV indicate that mTOR inhibition may also have neuroprotective effects. Taken together, these results demonstrate the therapeutic potential of mTOR inhibition, resulting from rAAV-mTOR shRNA activity, in the treatment of AMD-related CNV.
Collapse
|
36
|
Adamus G. Can innate and autoimmune reactivity forecast early and advance stages of age-related macular degeneration? Autoimmun Rev 2017; 16:231-236. [PMID: 28137479 PMCID: PMC5334174 DOI: 10.1016/j.autrev.2017.01.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 11/03/2016] [Indexed: 01/17/2023]
Abstract
Age-related macular degeneration (AMD) is a major cause of central vision loss in persons over 55years of age in developed countries. AMD is a complex disease in which genetic, environmental and inflammatory factors influence its onset and progression. Elevation in serum anti-retinal autoantibodies, plasma and local activation of complement proteins of the alternative pathway, and increase in secretion of proinflammatory cytokines have been seen over the course of disease. Genetic studies of AMD patients confirmed that genetic variants affecting the alternative complement pathway have a major influence on AMD risk. Because the heterogeneity of this disease, there is no sufficient strategy to identify the disease onset and progression sole based eye examination, thus identification of reliable serological biomarkers for diagnosis, prognosis and response to treatment by sampling patient's blood is necessary. This review provides an outline of the current knowledge on possible serological (autoantibodies, complement factors, cytokines, chemokines) and related genetic biomarkers relevant to the pathology of AMD, and discusses their application for prediction of disease activity and prognosis in AMD.
Collapse
Affiliation(s)
- Grazyna Adamus
- Ocular Immunology Laboratory, Casey Eye Institute, School of Medicine, Oregon Health and Science University, Portland, OR, USA.
| |
Collapse
|
37
|
Maggio E, Polito A, Guerriero M, Prigione G, Parolini B, Pertile G. Vitreomacular Adhesion and the Risk of Neovascular Age-Related Macular Degeneration. Ophthalmology 2017; 124:657-666. [PMID: 28214102 DOI: 10.1016/j.ophtha.2017.01.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 12/23/2016] [Accepted: 01/05/2017] [Indexed: 10/20/2022] Open
Abstract
PURPOSE To assess the prevalence of vitreomacular adhesion (VMA) in consecutive naïve eyes diagnosed with exudative age-related macular degeneration (AMD) in comparison with eyes with nonexudative AMD and age-matched controls, and to evaluate prospectively the incidence of vitreomacular interface changes over time and their influence on choroidal neovascularization (CNV) development. DESIGN Retrospective cross-sectional analysis and longitudinal cohort study conducted at Sacrocuore Hospital, Negrar, Verona, Italy. PARTICIPANTS A total of 1067 eyes examined at Sacrocuore Hospital between August 2008 and June 2015 met the inclusion criteria and were evaluated in this study. METHODS Eyes were classified into 3 groups: 403 eyes of 364 patients (mean [standard deviation; SD] age 77.8 [8.0] years) affected by exudative AMD; 350 eyes of 298 subjects (mean [SD] age 78.1 [8.2] years) with nonexudative AMD; and 314 eyes of 214 subjects (mean [SD] age 74.2 [8.2] years) with no signs of AMD enrolled as the control group. The vitreomacular interface status was evaluated by spectral-domain optical coherence tomography (OCT) and was graded according to the OCT-based International Classification System developed by the International Vitreomacular Traction Study Group by 2 independent masked observers. RESULTS VMA was present in 101 (25.1%) eyes with exudative AMD, 84 (24.0%) eyes with nonexudative AMD, and 84 (26.8%) eyes with no signs of AMD (no statistical difference was found; P = 0.3384). Spontaneous release of VMA (RVMA) was found in 15 (15.3%) eyes with exudative AMD, 21 (28.0%) eyes with nonexudative AMD, and 10 (24.4%) eyes with no signs of AMD over a mean follow-up of 25.5, 25.9, and 24.1 months, respectively. The incidence of RVMA in exudative AMD eyes was significantly lower compared with nonexudative (P = 0.0207) and lower, but not statistically significant, with respect to eyes with no signs of AMD (P = 0.1013). In eyes with nonexudative AMD, de novo development of CNV occurred in 91 eyes (30.6%). There was no significant difference regarding the rate of CNV development in the presence or absence of VMA (P = 0.0966). CONCLUSIONS The present study found no significant difference in the prevalence of VMA in eyes affected by AMD compared with age-matched controls and no difference in the rate of de novo CNV development in eyes with or without VMA. Conversely, a lower incidence of RVMA over time was found in eyes affected by exudative AMD. The results of this study suggest that VMA might be a consequence rather than a causative factor in the development of CNV.
Collapse
Affiliation(s)
| | | | | | | | - Barbara Parolini
- Department of Ophthalmology, Sant'Anna Institute, Brescia, Italy
| | | |
Collapse
|
38
|
Bonyadi M, Mehdizadeh F, Jabbarpoor Bonyadi MH, Soheilian M, Javadzadeh A, Yaseri M. Association of the DNA repair SMUG1 rs3087404 polymorphism and its interaction with high sensitivity C-reactive protein for age-related macular degeneration in Iranian patients. Ophthalmic Genet 2017; 38:422-427. [DOI: 10.1080/13816810.2016.1251947] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Mortaza Bonyadi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
- Liver and Gastrointestinal Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Faride Mehdizadeh
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | | | - Masoud Soheilian
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Javadzadeh
- Department of Ophthalmology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yaseri
- Department of Biostatistics and Epidemiology, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
39
|
Jabbarpoor Bonyadi MH, Yaseri M, Bonyadi M, Soheilian M, Nikkhah H. Association of combined cigarette smoking and ARMS2/LOC387715 A69S polymorphisms with age-related macular degeneration: A meta-analysis. Ophthalmic Genet 2017; 38:308-313. [DOI: 10.1080/13816810.2016.1237664] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Mehdi Yaseri
- Department of Biostatistics and Epidemiology, Tehran University of Medical Sciences, Tehran, Iran
| | - Mortaza Bonyadi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Masoud Soheilian
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Homayoun Nikkhah
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
40
|
Velazquez-Villoria A, Recalde S, Anter J, Bezunartea J, Hernandez-Sanchez M, García-García L, Alonso E, Ruiz-Moreno JM, Araiz-Iribarren J, Fernandez-Robredo P, García-Layana A. Evaluation of 10 AMD Associated Polymorphisms as a Cause of Choroidal Neovascularization in Highly Myopic Eyes. PLoS One 2016; 11:e0162296. [PMID: 27643879 PMCID: PMC5028023 DOI: 10.1371/journal.pone.0162296] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 08/20/2016] [Indexed: 02/07/2023] Open
Abstract
Choroidal neovascularization (CNV) commonly occurs in age related macular degeneration and pathological myopia patients. In this study we conducted a case-control prospective study including 431 participants. The aim of this study was to determine the potential association between 10 single nucleotide polymorphisms (SNPs) located in 4 different genetic regions (CFI, COL8A1, LIPC, and APOE), and choroidal neovascularization in age-related macular degeneration and the development of choroidal neovascularization in highly myopic eyes of a Caucasian population. Univariate and multivariate logistic regression analysis adjusted for age, sex and hypertension was performed for each allele, genotype and haplotype frequency analysis. We found that in the univariate analysis that both single-nucleotide polymorphisms in COL8A1 gene (rs13095226 and rs669676) together with age, sex and hypertension were significantly associated with myopic CNV development in Spanish patients (p<0.05). After correcting for multiple testing none of the polymorphisms studied remained significantly associated with myopic CNV (p>0.05); however, analysis of the axial length between genotypes of rs13095226 revealed an important influence of COL8A1 in the development of CNV in high myopia. Furthermore we conducted a meta-analysis of COL8A1, CFI and LIPC genes SNPs (rs669676, rs10033900 and rs10468017) and found that only rs669676 of these SNPs were associated with high myopia neovascularization.
Collapse
Affiliation(s)
- Alvaro Velazquez-Villoria
- Ophthalmology Experimental Laboratory, Universidad de Navarra, Pamplona, Spain
- Department of Ophthalmology, Clínica Universidad de Navarra, Pamplona, Spain
| | - Sergio Recalde
- Ophthalmology Experimental Laboratory, Universidad de Navarra, Pamplona, Spain
- * E-mail:
| | - Jaouad Anter
- Department of Celular and Molecular Medicine, Centro de Investigaciones Biológicas and Ciber de Enfermedades Raras, Madrid, Spain
| | - Jaione Bezunartea
- Ophthalmology Experimental Laboratory, Universidad de Navarra, Pamplona, Spain
| | | | - Laura García-García
- Ophthalmology Experimental Laboratory, Universidad de Navarra, Pamplona, Spain
| | - Elena Alonso
- Ophthalmology Experimental Laboratory, Universidad de Navarra, Pamplona, Spain
- Department of Ophthalmology, Clínica Universidad de Navarra, Pamplona, Spain
| | - Jose María Ruiz-Moreno
- Department of Ophthalmology, Castilla La Mancha University, Albacete and Baviera European Institute of Retina, Alicante, Spain
| | - Javier Araiz-Iribarren
- University of the Basque Country (Surgical-Clinical Institute of Ophthalmology) and San Eloy Hospital, Bilbao, Spain
| | | | - Alfredo García-Layana
- Ophthalmology Experimental Laboratory, Universidad de Navarra, Pamplona, Spain
- Department of Ophthalmology, Clínica Universidad de Navarra, Pamplona, Spain
| |
Collapse
|
41
|
Leinonen H, Rossi M, Salo AM, Tiainen P, Hyvärinen J, Pitkänen M, Sormunen R, Miinalainen I, Zhang C, Soininen R, Kivirikko KI, Koskelainen A, Tanila H, Myllyharju J, Koivunen P. Lack of P4H-TM in mice results in age-related retinal and renal alterations. Hum Mol Genet 2016; 25:3810-3823. [DOI: 10.1093/hmg/ddw228] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 07/01/2016] [Accepted: 07/01/2016] [Indexed: 01/15/2023] Open
|
42
|
Jabbarpoor Bonyadi MH, Yaseri M, Bonyadi M, Soheilian M, Karimi S. Association of Combined Complement Factor H Y402H and ARMS/LOC387715 A69S Polymorphisms with Age-related Macular Degeneration: A Meta-analysis. Curr Eye Res 2016; 41:1519-1525. [PMID: 27269047 DOI: 10.3109/02713683.2016.1158274] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE Complement factor H (CFH) Y402H (rs1061170) and age-related maculopathy susceptibility2 (ARMS2)/LOC387715 A69S (rs10490924) polymorphisms shown to have significant association with age-related macular degeneration (AMD). In this meta-analysis, we pooled the results of the available association studies between combined ARMS2/LOC387715A69S-CFHY402H genotypes and AMD to estimate the possible synergistic or multiplicative effects. METHODS Heterogeneity of studies was evaluated using the Cochran Q-test and the I-square index. To modify the heterogeneity in the variables, we used random effects model. Meta-analysis was performed using STATA. To estimate the additive or supra-additive effects, we calculated relative excess risk due to interaction (RERI), attributable proportion due to interaction (AP), synergy index (S), and multiplicative index (V). RESULTS We included eight studies with 2915 AMD patients and 3505 control subjects. Considering the GGTT genotypes as reference lines, the pooled AMD Odds Ratios for stratified combined genotypes were 2.32 (95% CI 1.64-3.28) for GGnon-TT, 2.49 (95% CI 1.72-3.60) for non-GGTT, and 7.82 (95% CI 5.09-12.00) for non-GGnon-TT. Pooled synergy analysis revealed RERI = 4.08 (95% CI 3.15-5.27), AP = 0.50 (95% CI 0.42-0.57), S = 2.31 (95% CI 1.9-2.82), and V = 1.21 (95% CI 0.93-1.49). CONCLUSION This analysis revealed the synergistic and positive multiplicative effect of these two genes indicating that there is a common pathway of ARMS2/LOC387715 and CFH in AMD pathogenesis which may be the complement system pathway.
Collapse
Affiliation(s)
| | - Mehdi Yaseri
- b Department of Biostatistics and Epidemiology , Tehran University of Medical Sciences , Tehran , Iran
| | - Mortaza Bonyadi
- c Center of Excellence for Biodiversity, Faculty of Natural Sciences , University of Tabriz , Tabriz , Iran
| | - Masoud Soheilian
- a Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Saeed Karimi
- a Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences , Tehran , Iran
| |
Collapse
|
43
|
Yu Y, Ren XR, Wen F, Chen H, Su SB. T-helper-associated cytokines expression by peripheral blood mononuclear cells in patients with polypoidal choroidal vasculopathy and age-related macular degeneration. BMC Ophthalmol 2016; 16:80. [PMID: 27266510 PMCID: PMC4895798 DOI: 10.1186/s12886-016-0251-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 05/21/2016] [Indexed: 11/24/2022] Open
Abstract
Background Immune responses play a key role in the pathogenesis and progression of polypoidal choroidal vasculopath (PCV) and age-related macular degeneration (AMD). In this study, we determined the Th cell-associated immune responses by measuring the cytokine expression of peripheral blood mononuclear cells (PBMC) in both PCV and neovascular AMD (nAMD) patients. Methods Twenty-seven nAMD patients, 33 PCV patients and a gender- and age-matched group of 18 healthy individuals were involved in this study. The Th-cell cytokine profiles including levels of interferon-gamma (INF-γ), interleukin (IL)-17A and IL-4 in cultures of PBMCs were determined by enzyme-linked immunosorbent assay (ELISA). Results IFN-γ,IL-17A and IL-4 production was significantly increased after stimulation with PHA. The levels of IFN-γ and IL-4 in PHA-stimulated cultures were higher in PCV and nAMD patients than that in healthy controls (P = 0.038,P = 0.014), while no difference was found between PCV and nAMD (all P > 0.05). No significant difference in IL-17A level in PHA-stimulated cultures was found among PCV, nAMD and control groups (P > 0.05). Conclusions These findings suggest that circulating IFN-γ and IL-4 producing Th1 and Th2 cells may involve in the pathogenesis of PCV and nAMD. PCV may have the similar immune responses with nAMD.
Collapse
Affiliation(s)
- Ying Yu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, 510060, China
| | - Xiang Rong Ren
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, 510060, China
| | - Feng Wen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, 510060, China
| | - Hui Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, 510060, China
| | - Shao Bo Su
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, 510060, China.
| |
Collapse
|
44
|
Cruz-González F, Cabrillo Estévez L, Cañete Campos C, Sánchez-Jara Sánchez A, Juan Marcos L, González-Sarmiento R. The presence of CFH, HTRA1, ARMS2, VEGF-A and VEGF-R and the appearance of age-related macular degeneration sub-types. ARCHIVOS DE LA SOCIEDAD ESPANOLA DE OFTALMOLOGIA 2016; 91:177-83. [PMID: 26850328 DOI: 10.1016/j.oftal.2015.12.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/23/2015] [Accepted: 12/25/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To demonstrate the genetic influence in the onset of the different age-related macular disease (AMD) subtypes by analysing the genotype distribution of CFH, ARMS2, HTRA1, VEGF-A and VEGF-R polymorphisms in patients with neovascular and atrophic AMD. MATERIALS AND METHODS The study was conducted on 101 consecutive patients with AMD diagnosis (74 exudative, 27 atrophic) following Wisconsin international classification criteria. The CFH rs1410996, ARMS2 rs10940923, VEGF-A rs833061, rs699947, and VEGF-R rs2071559 polymorphisms were analysed using real time PCR with taqman probes, and HTRA1 rs112000638 using restriction endonucleases digestion. A study was made of the genotype distribution of the different polymorphisms in our group of patients with neovascular AMD and those with the atrophic type, and a comparison was made of the results for each one of the genes studied. RESULTS No statistically significant differences (P>.05) were found in the genotype distribution of the different polymorphisms between patients with neovascular AMD and patients with atrophic AMD in our population, although the "risk" genotypes tended to appear more frequently in patients with neovascular AMD, despite the lack of statistical significance. CONCLUSIONS Allelic variants of CFH, ARMS2, HTRA1, VEGF-A or VEGF-R genes are not associated with the different AMD subtypes. This suggests that, although the polymorphisms seem to be associated with the disease susceptibility, they are not involved in the onset of the different clinical variants of AMD. Further studies in different populations, and with a larger cohort of patients, are needed to confirm these results.
Collapse
Affiliation(s)
- F Cruz-González
- Servicio de Oftalmología, Hospital Universitario de Salamanca, Salamanca, España.
| | - L Cabrillo Estévez
- Servicio de Oftalmología, Instituto Salmantino de Oftalmología, Salamanca, España
| | - C Cañete Campos
- Servicio de Oftalmología, Hospital Universitario de Salamanca, Salamanca, España
| | | | - L Juan Marcos
- Servicio de Oftalmología, Hospital Universitario de Salamanca, Salamanca, España
| | - R González-Sarmiento
- Departamento de Medicina Molecular, Facultad de Medicina, Universidad de Salamanca, Salamanca, España
| |
Collapse
|
45
|
Bonyadi M, Mohammadian T, Jabbarpoor Bonyadi MH, Fotouhi N, Soheilian M, Javadzadeh A, Moein H, Yaseri M. Association of polymorphisms in complement component 3 with age-related macular degeneration in an Iranian population. Ophthalmic Genet 2016; 38:61-66. [DOI: 10.3109/13816810.2015.1126612] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mortaza Bonyadi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
- Liver and Gastrointestinal Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Tahereh Mohammadian
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Mohammad Hossein Jabbarpoor Bonyadi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nikou Fotouhi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Masoud Soheilian
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Javadzadeh
- Department of Ophthalmology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamidreza Moein
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Yaseri
- Department of Biostatistics and Epidemiology, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
46
|
Stiles M, Qi H, Sun E, Tan J, Porter H, Allegood J, Chalfant CE, Yasumura D, Matthes MT, LaVail MM, Mandal NA. Sphingolipid profile alters in retinal dystrophic P23H-1 rats and systemic FTY720 can delay retinal degeneration. J Lipid Res 2016; 57:818-31. [PMID: 26947037 DOI: 10.1194/jlr.m063719] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Indexed: 12/28/2022] Open
Abstract
Retinal degeneration (RD) affects millions of people and is a major cause of ocular impairment and blindness. With a wide range of mutations and conditions leading to degeneration, targeting downstream processes is necessary for developing effective treatments. Ceramide and sphingosine-1-phosphate, a pair of bioactive sphingolipids, are involved in apoptosis and its prevention, respectively. Apoptotic cell death is a potential driver of RD, and in order to understand the mechanism of degeneration and potential treatments, we studied rhodopsin mutant RD model, P23H-1 rats. Investigating this genetic model of human RD allows us to investigate the association of sphingolipid metabolites with the degeneration of the retina in P23H-1 rats and the effects of a specific modulator of sphingolipid metabolism, FTY720. We found that P23H-1 rat retinas had altered sphingolipid profiles that, when treated with FTY720, were rebalanced closer to normal levels. FTY720-treated rats also showed protection from RD compared with their vehicle-treated littermates. Based on these data, we conclude that sphingolipid dysregulation plays a secondary role in retinal cell death, which may be common to many forms of RDs, and that the U.S. Food and Drug Administration-approved drug FTY720 or related compounds that modulate sphingolipid metabolism could potentially delay the cell death.
Collapse
Affiliation(s)
- Megan Stiles
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 Dean McGee Eye Institute, Oklahoma City, OK 73104
| | - Hui Qi
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 Dean McGee Eye Institute, Oklahoma City, OK 73104
| | - Eleanor Sun
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 Dean McGee Eye Institute, Oklahoma City, OK 73104
| | - Jeremy Tan
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 Dean McGee Eye Institute, Oklahoma City, OK 73104
| | - Hunter Porter
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 Dean McGee Eye Institute, Oklahoma City, OK 73104
| | - Jeremy Allegood
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298
| | - Charles E Chalfant
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298 Research and Development, Hunter Holmes McGuire Veterans Administration Medical Center, Richmond, VA 23249 Virginia Commonwealth University School of Medicine, Virginia Commonwealth University Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298 Virginia Commonwealth University Institute of Molecular Medicine and the Virginia Commonwealth University Johnson Center, Virginia Commonwealth University, Richmond, VA 23298
| | - Douglas Yasumura
- Beckman Vision Center, University of California, San Francisco School of Medicine, San Francisco, CA 94143
| | - Michael T Matthes
- Beckman Vision Center, University of California, San Francisco School of Medicine, San Francisco, CA 94143
| | - Matthew M LaVail
- Beckman Vision Center, University of California, San Francisco School of Medicine, San Francisco, CA 94143
| | - Nawajes A Mandal
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 Dean McGee Eye Institute, Oklahoma City, OK 73104 Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104
| |
Collapse
|
47
|
Liao X, Lan CJ, Cheuk IWY, Tan QQ. Four complement factor H gene polymorphisms in association with AMD: A meta-analysis. Arch Gerontol Geriatr 2016; 64:123-9. [PMID: 26852301 DOI: 10.1016/j.archger.2016.01.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 01/21/2016] [Accepted: 01/22/2016] [Indexed: 11/17/2022]
Abstract
AIM To investigate the possible association between CFH gene polymorphisms -543G>A (rs1410996), A473A (rs2274700), -257C>T (rs3753394), IVS15 (rs1329428) and AMD risk. METHODS We searched the published literature in the Medline and Scopus from inception to May 2015. A meta-analysis was performed by the programs RevMan 5.1 and Stata 12.0, and the Pooled odds ratio (OR) with 95% confidence interval (CI) was calculated in fixed or random effect model based on heterogeneity test among studies. RESULTS Nineteen studies with a total of 10,676 subjects were included in the present meta-analysis. A statistical significant association was observed between AMD risk and CFH -543G>A polymorphism with OR of 1.77 (95% CI, 1.47-2.12), 2.24 (95% CI, 1.71-2.94), 0.49 (95% CI, 0.38-0.62) and 0.25 (95% CI, 0.18-0.37) in additive, dominant, recessive and codominant models, respectively. Similar results were obtained in polymorphisms A473A, -257C>T, IVS15. Furthermore, stratified analysis for ethnicity showed a significantly strong association between -543G>A, A473A polymorphisms and AMD risk. CONCLUSION The present meta-analysis suggested that CFH -543G>A, A473A, -257C>T, and IVS15 polymorphisms might be moderately associated with AMD risk. This conclusion warrants confirmation by further studies.
Collapse
Affiliation(s)
- Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637007, Sichuan Province, China; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637007, Sichuan Province, China; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China.
| | - Isabella-Wai-Yin Cheuk
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hunghom, Hong Kong, China
| | - Qing-qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637007, Sichuan Province, China; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
| |
Collapse
|
48
|
Reibaldi M, Longo A, Pulvirenti A, Avitabile T, Russo A, Cillino S, Mariotti C, Casuccio A. Geo-Epidemiology of Age-Related Macular Degeneration: New Clues Into the Pathogenesis. Am J Ophthalmol 2016; 161:78-93.e1-2. [PMID: 26432929 DOI: 10.1016/j.ajo.2015.09.031] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 09/24/2015] [Accepted: 09/24/2015] [Indexed: 12/25/2022]
Abstract
PURPOSE To evaluate the demographic, geographic, and race-related variables that account for geographic variability in prevalence rates of age-related macular degeneration (AMD). DESIGN Systematic review, meta-regression, and decision-tree analysis. METHODS A systematic literature review of PubMed, Medline, Web of Science, and Embase databases identified population-based studies on the prevalence of AMD published before May 2014. Only population-based studies that took place in a spatially explicit geographic area that could be geolocalized, and used retinal photographs and standardized grading classifications, were included. Latitude and longitude data (geolocalization) and the mean annual insolation for the area where survey took place were obtained. Age-standardized prevalence rates across studies were estimated using the direct standardization method. Correlations between the prevalence of AMD and longitude and latitude were obtained by regression analysis. A hierarchical Bayesian meta-regression approach was used to assess the association between the prevalence of AMD and other relevant factors. We further investigated the interplay between location and these factors on the prevalence of AMD using regression based on conditional-inference decision trees. RESULTS We observed significant inverse correlations between latitude or longitude, and crude or age-standardized prevalence rates, of early and late AMD (P < .001). Metaregression analysis showed that insolation, latitude, longitude, age, and race have a significant effect on the prevalence rates of early and late AMD (P < .001). Decision-tree analysis identified that the most important predictive variable was race for early AMD (P = .002) and insolation for late AMD (P = .001). CONCLUSIONS Geographic position and insolation are key factors in the prevalence of AMD.
Collapse
|
49
|
Wang CP, Lai CH, Huang EJC, Wu PL, Chen CL, Chen CY, King YC, Wu PC, Kuo CN. Axial length and subfoveal choroidal thickness in individuals with age-related macular degeneration. Taiwan J Ophthalmol 2015; 5:169-176. [PMID: 29018693 PMCID: PMC5602135 DOI: 10.1016/j.tjo.2015.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 10/15/2015] [Accepted: 10/19/2015] [Indexed: 12/23/2022] Open
Abstract
PURPOSE To compare axial length (AL) and subfoveal choroidal thickness (SFCT) between individuals with age-related macular degeneration (AMD) and controls with no lesions. METHODS This was a case-control study. In total, 853 eyes of 484 patients (>65 years), including 397 eyes at various AMD stages and 456 eyes with no fundus lesions (controls) were recruited. Using color fundus photography, eyes were grouped according to AMD degree. AL was automatically measured using IOL Master and SFCT was manually measured by two independent observers. The associations among age, AL, SFCT, and each AMD grade were analyzed. RESULTS Out of 853 eyes, 456 had no lesions, 217 contained drusen only, 134 had early AMD, and 46 had late AMD. The eyes with late AMD were older (p = 0.007) and had longer AL (p ≥ 0.001) and thinner SFCT (p < 0.001) compared with groups of no fundus lesions, drusen only, and early AMD. SFCT in eyes with late AMD decreased by 19.20 μm (p = 0.049), 24.78 μm (p = 0.029), and 15.56 μm (p = 0.162) compared with groups of no fundus lesions, drusen only, and early AMD, respectively. SFCT decreased by 14.18 μm/mm increase in AL (p < 0.001). The odds ratio (OR) for late AMD by longer AL (≥25 mm) and thinner SFCT (<240 μm) was 4.54 (χ2 = 9.36; p = 0.002) and 4.86 (χ2 = 17.62; p < 0.001), respectively, and was 9.57 (χ2 = 18.07; p < 0.001) when both AL ≥ 25 ≥m and SFCT < 240 μm. CONCLUSION Eyes with late AMD have distinct reduced SFCT and elongated AL. Eyes with thinner SFCT and longer AL showed high ORs for late AMD and even higher ORs when both factors were simultaneously present. These findings illustrate the crucial pathophysiological role of these two important ocular fac tors and arouse our attention to patients with both characteristics, especially in Asian countries where the prevalence of myopia are disturbingly high.
Collapse
Affiliation(s)
- Chih-Ping Wang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Chiayi, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| | - Chien-Hsiung Lai
- Department of Ophthalmology, Chang Gung Memorial Hospital, Chiayi, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan.,Department of Nursing, Chang Gung University of Science and Technology, Chiayi, Taiwan
| | - Evelyn Jou-Chen Huang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Chiayi, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| | - Pei-Lun Wu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Chiayi, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| | - Ching-Lung Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, Chiayi, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| | - Chau-Yin Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, Chiayi, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| | - Yin-Chi King
- Department of Ophthalmology, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Pei-Chen Wu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Chiayi, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| | - Chien-Neng Kuo
- Department of Ophthalmology, Chang Gung Memorial Hospital, Chiayi, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| |
Collapse
|
50
|
Hall JB, Cooke Bailey JN, Hoffman JD, Pericak-Vance MA, Scott WK, Kovach JL, Schwartz SG, Agarwal A, Brantley MA, Haines JL, Bush WS. Estimating cumulative pathway effects on risk for age-related macular degeneration using mixed linear models. BMC Bioinformatics 2015; 16:329. [PMID: 26467978 PMCID: PMC4606903 DOI: 10.1186/s12859-015-0760-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 10/03/2015] [Indexed: 11/13/2022] Open
Abstract
Background Age-related macular degeneration (AMD) is the leading cause of irreversible visual loss in the elderly in developed countries and typically affects more than 10 % of individuals over age 80. AMD has a large genetic component, with heritability estimated to be between 45 % and 70 %. Numerous variants have been identified and implicate various molecular mechanisms and pathways for AMD pathogenesis but those variants only explain a portion of AMD’s heritability. The goal of our study was to estimate the cumulative genetic contribution of common variants on AMD risk for multiple pathways related to the etiology of AMD, including angiogenesis, antioxidant activity, apoptotic signaling, complement activation, inflammatory response, response to nicotine, oxidative phosphorylation, and the tricarboxylic acid cycle. While these mechanisms have been associated with AMD in literature, the overall extent of the contribution to AMD risk for each is unknown. Methods In a case–control dataset with 1,813 individuals genotyped for over 600,000 SNPs we used Genome-wide Complex Trait Analysis (GCTA) to estimate the proportion of AMD risk explained by SNPs in genes associated with each pathway. SNPs within a 50 kb region flanking each gene were also assessed, as well as more distant, putatively regulatory SNPs, based on DNaseI hypersensitivity data from ocular tissue in the ENCODE project. Results We found that 19 previously associated AMD risk SNPs contributed to 13.3 % of the risk for AMD in our dataset, while the remaining genotyped SNPs contributed to 36.7 % of AMD risk. Adjusting for the 19 risk SNPs, the complement activation and inflammatory response pathways still explained a statistically significant proportion of additional risk for AMD (9.8 % and 17.9 %, respectively), with other pathways showing no significant effects (0.3 % – 4.4 %). Discussion Our results show that SNPs associated with complement activation and inflammation significantly contribute to AMD risk, separately from the risk explained by the 19 known risk SNPs. We found that SNPs within 50 kb regions flanking genes explained additional risk beyond genic SNPs, suggesting a potential regulatory role, but that more distant SNPs explained less than 0.5 % additional risk for each pathway. Conclusions From these analyses we find that the impact of complement SNPs on risk for AMD extends beyond the established genome-wide significant SNPs. Electronic supplementary material The online version of this article (doi:10.1186/s12859-015-0760-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jacob B Hall
- Graduate Program in Human Genetics, Vanderbilt University, Nashville, TN, USA.
| | - Jessica N Cooke Bailey
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, OH, USA.
| | - Joshua D Hoffman
- Graduate Program in Human Genetics, Vanderbilt University, Nashville, TN, USA.
| | - Margaret A Pericak-Vance
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA.
| | - William K Scott
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA.
| | - Jaclyn L Kovach
- Department of Ophthalmology at Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA.
| | - Stephen G Schwartz
- Department of Ophthalmology at Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA.
| | - Anita Agarwal
- Department of Ophthalmology and Visual Sciences, Vanderbilt University, Nashville, TN, USA.
| | - Milam A Brantley
- Department of Ophthalmology and Visual Sciences, Vanderbilt University, Nashville, TN, USA.
| | - Jonathan L Haines
- Institute for Computational Biology, Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, OH, USA.
| | - William S Bush
- Institute for Computational Biology, Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, OH, USA.
| |
Collapse
|