Cited by 727Retinal Diseases and TreatmentsComplement system in diseasesOcular Diseases and Behçet’s Syndrome

The pivotal role of the complement system in aging and age-related macular degeneration: Hypothesis re-visited

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Anderson, Don H., Radeke, Monte J., Gallo, Natasha B., Chapin, Ethan A., Johnson, Patrick T., Curletti, Christy R., Hancox, Lisa S., Hu, Jane +7 more·2010·Progress in Retinal and Eye Research

Abstract

During the past ten years, dramatic advances have been made in unraveling the biological bases of age-related macular degeneration (AMD), the most common cause of irreversible blindness in western populations. In that timeframe, two distinct lines of evidence emerged which implicated chronic local inflammation and activation of the complement cascade in AMD pathogenesis. First, a number of complement system proteins, complement activators, and complement regulatory proteins were identified as molecular constituents of drusen, the hallmark extracellular deposits associated with early AMD. Subsequently, genetic studies revealed highly significant statistical associations between AMD and variants of several complement pathway-associated genes including: Complement factor H (CFH), complement factor H-related 1 and 3 (CFHR1 and CFHR3), complement factor B (CFB), complement component 2 (C2), and complement component 3 (C3). In this article, we revisit our original hypothesis that chronic local inflammatory and immune-mediated events at the level of Bruch's membrane play critical roles in drusen biogenesis and, by extension, in the pathobiology of AMD. Secondly, we report the results of a new screening for additional AMD-associated polymorphisms in a battery of 63 complement-related genes. Third, we identify and characterize the local complement system in the RPE-choroid complex - thus adding a new dimension of biological complexity to the role of the complement system in ocular aging and AMD. Finally, we evaluate the most salient, recent evidence that bears directly on the role of complement in AMD pathogenesis and progression. Collectively, these recent findings strongly re-affirm the importance of the complement system in AMD. They lay the groundwork for further studies that may lead to the identification of a transcriptional disease signature of AMD, and hasten the development of new therapeutic approaches that will restore the complement-modulating activity that appears to be compromised in genetically susceptible individuals.

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  1. Hageman GS, Mullins RF, Russell SR, Johnson LV, Anderson DH. Vitronectin is a constituent of ocular drusen and the vitronectin gene is expressed in human retinal pigmented epithelial cells. Faseb J. 1999b;13:477–484. doi: 10.1096/fasebj.13.3.477. [DOI] [PubMed] [Google Scholar] · DOI · Paper page

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Authors
Anderson, D. H., Radeke, M. J., Gallo, N. B., Chapin, E. A., Johnson, P. T., Curletti, C. R., Hancox, L. S., Hu, J., Ebright, J. N., Malek, G., Hauser, M. A., Bowes Rickman, C., Bok, D., Hageman, G. S., & Johnson, L. V.
Affiliations
  • University of California, Santa Barbara (US)
  • University of Iowa (US)
  • University of California, Los Angeles (US)
  • Duke Medical Center (US)
  • University of Utah (US)
Corresponding author
Anderson, Don H.
Venue
Progress in Retinal and Eye Research
Publisher
Elsevier BV
Published
2010-03
Volume
29
Issue
2
Pages
95-112
ISSN
1350-9462 (ISSN-L)
OpenAlex
W1989747234
Cited by
727
References
118
Citations by year
2026: 21 · 2025: 19 · 2024: 28 · 2023: 36 · 2022: 42 · 2021: 48 · 2020: 47 · 2019: 35 · 2018: 53 · 2017: 46 · 2016: 39 · 2015: 68 · 2014: 59 · 2013: 50 · 2012: 54
FWCI
8.90
Type
journal article
Language
en
Open access
Locations
  • Progress in Retinal and Eye Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Eye Institute (EY014799, EY-00331, R24EY014799, R01EY011286, R24EY017404, P30EY005722, P30EY000331)
Topics
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
  • Life Sciences › Immunology and Microbiology › Immunology › Complement system in diseases
  • Health Sciences › Medicine › Ophthalmology › Ocular Diseases and Behçet’s Syndrome
Keywords
age-related macular degeneration, complement system, drusen, Bruch's membrane, chronic inflammation, complement regulatory proteins, complement factor H, factor B, complement C3, genetic polymorphism, retinal pigment epithelium, choroid, ocular aging, AMD pathogenesis
MeSH terms
Aging, Choroid, Complement System Proteins, Humans, Macular Degeneration, Gene Expression, Polymorphism, Single Nucleotide, Retinal Pigment Epithelium

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