Complement factor H binds malondialdehyde epitopes and protects from oxidative stress
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Complement factor H binds malondialdehyde epitopes and protects from oxidative stress. / Weismann, David; Hartvigsen, Karsten; Lauer, Nadine; Bennett, Keiryn L; Scholl, Hendrik P N; Charbel Issa, Peter; Cano, Marisol; Brandstätter, Hubert; Tsimikas, Sotirios; Skerka, Christine; Superti-Furga, Giulio; Handa, James T; Zipfel, Peter F; Witztum, Joseph L; Binder, Christoph J.
In: Nature Study, Vol. 478, No. 7367, 2011, p. 76-81.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Complement factor H binds malondialdehyde epitopes and protects from oxidative stress
AU - Weismann, David
AU - Hartvigsen, Karsten
AU - Lauer, Nadine
AU - Bennett, Keiryn L
AU - Scholl, Hendrik P N
AU - Charbel Issa, Peter
AU - Cano, Marisol
AU - Brandstätter, Hubert
AU - Tsimikas, Sotirios
AU - Skerka, Christine
AU - Superti-Furga, Giulio
AU - Handa, James T
AU - Zipfel, Peter F
AU - Witztum, Joseph L
AU - Binder, Christoph J
PY - 2011
Y1 - 2011
N2 - Oxidative stress and enhanced lipid peroxidation are linked to many chronic inflammatory diseases, including age-related macular degeneration (AMD). AMD is the leading cause of blindness in Western societies, but its aetiology remains largely unknown. Malondialdehyde (MDA) is a common lipid peroxidation product that accumulates in many pathophysiological processes, including AMD. Here we identify complement factor H (CFH) as a major MDA-binding protein that can block both the uptake of MDA-modified proteins by macrophages and MDA-induced proinflammatory effects in vivo in mice. The CFH polymorphism H402, which is strongly associated with AMD, markedly reduces the ability of CFH to bind MDA, indicating a causal link to disease aetiology. Our findings provide important mechanistic insights into innate immune responses to oxidative stress, which may be exploited in the prevention of and therapy for AMD and other chronic inflammatory diseases.
AB - Oxidative stress and enhanced lipid peroxidation are linked to many chronic inflammatory diseases, including age-related macular degeneration (AMD). AMD is the leading cause of blindness in Western societies, but its aetiology remains largely unknown. Malondialdehyde (MDA) is a common lipid peroxidation product that accumulates in many pathophysiological processes, including AMD. Here we identify complement factor H (CFH) as a major MDA-binding protein that can block both the uptake of MDA-modified proteins by macrophages and MDA-induced proinflammatory effects in vivo in mice. The CFH polymorphism H402, which is strongly associated with AMD, markedly reduces the ability of CFH to bind MDA, indicating a causal link to disease aetiology. Our findings provide important mechanistic insights into innate immune responses to oxidative stress, which may be exploited in the prevention of and therapy for AMD and other chronic inflammatory diseases.
KW - Animals
KW - Apoptosis
KW - Binding Sites
KW - Complement Factor H
KW - Complement Inactivator Proteins
KW - Complement System Proteins
KW - Enzyme-Linked Immunosorbent Assay
KW - Epitopes
KW - Female
KW - Humans
KW - Inflammation
KW - Lipid Peroxidation
KW - Macrophages, Peritoneal
KW - Macular Degeneration
KW - Male
KW - Malondialdehyde
KW - Mice
KW - Mice, Inbred C57BL
KW - Mutation
KW - Necrosis
KW - Oxidative Stress
KW - Protein Binding
KW - Protein Structure, Tertiary
KW - Retina
U2 - 10.1038/nature10449
DO - 10.1038/nature10449
M3 - Journal article
C2 - 21979047
VL - 478
SP - 76
EP - 81
JO - Nature Study
JF - Nature Study
SN - 0028-0860
IS - 7367
ER -
ID: 40254708