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Monocyte chemoattractant protein-1 in the aqueous humor of patients with age-related macular degeneration.
MedLine Citation:
PMID:  22172228     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background:  To investigate the role of inflammation in age-related macular degeneration (AMD) by measuring the levels of cytokines in the aqueous humor. Methods:  Samples of aqueous humor were collected from 34 patients with AMD and 16 age-matched control subjects undergoing cataract surgery. AMD stage (AREDS) was determined clinically, before surgery. Levels of cytokines were measured using Luminex X-MAP technology, and positive results were verified by Western blot. Results:  AMD was moderate in 18 patients and advanced in 16. The advanced-AMD group was further divided into patients with active choroidal neovascularization (CNV) (n = 7), disciform scar (n = 7), or central geographic atrophy (n = 2). Higher-than-normal levels of monocyte chemoattractant protein-1 (MCP-1) in the aqueous humor were associated with advanced AMD (200 ± 140 pg/ml vs 100 ± 61 pg/ml; p = 0.03), especially active CNV (255 ± 155 pg/ml; p = 0.02), Western blot analysis verified the MCP-1 findings. Patients with disciform scar showed a trend of abnormally high levels of IL-12 (p70) (1.7 ± 2.4 pg/ml vs 0.2 ± 1 pg/ml; p = 0.07), tumor necrosis factor (TNF)-α (1.8 ± 2.4 pg/ml vs 0.3 ± 1 pg/ml; p = 0.06), and IL-8 (4.7 ± 6.4 pg/ml vs 1.2 ± 2.1 pg/ml; p = 0.08). Conclusion:  Elevated levels of inflammation-related cytokines in the aqueous humor in various stages of AMD may suggest a pathogenic role of inflammation. MCP-1 may be indicative of the angiogenic phase. Further corroborative studies are required.
Authors:
Michal Kramer; Murat Hasanreisoglu; Anna Feldman; Ruth Axer Siegel; Paulina Sonis; Idit Maharshak; Yehudit Monselise; Michael Gurevich; Dov Weinberger
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-15
Journal Detail:
Title:  Clinical & experimental ophthalmology     Volume:  -     ISSN:  1442-9071     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100896531     Medline TA:  Clin Experiment Ophthalmol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 The Authors. Journal compilation © 2011 Royal Australian and New Zealand College of Ophthalmologists.
Affiliation:
Department of Ophthalmology, Rabin Medical Center, Petach Tikva; Neurogenomic Laboratory, Multiple Sclerosis Center, Sheba Medical Center, Tel Hashomer; Laboratory of Clinical Immunology, Rabin Medical Center, Petach Tikva, and Sackler School of Medicine, Tel Aviv University, Tel Aviv; Israel.
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