Results 1 to 10 of about 231,543 (135)
Borrelia burgdorferi BBK32 Inhibits the Classical Pathway by Blocking Activation of the C1 Complement Complex. [PDF]
Pathogens that traffic in blood, lymphatics, or interstitial fluids must adopt strategies to evade innate immune defenses, notably the complement system.
Brandon L Garcia +4 more
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C1 Complex: An Adaptable Proteolytic Module for Complement and Non-Complement Functions [PDF]
Complement C1 is the defining component of the classical pathway. Within the C1qC1r2C1s2 complex, C1q functions as a molecular scaffold for C1r2C1s2 and C1q binding to its ligands activates these two serine proteases.
Jinhua Lu, Uday Kishore
doaj +5 more sources
The axis of complement C1 and nucleolus in antinuclear autoimmunity
Antinuclear autoantibodies (ANA) are heterogeneous self-reactive antibodies that target the chromatin network, the speckled, the nucleoli, and other nuclear regions.
Shan Wu +15 more
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BackgroundDysregulated complement activation, increased protein citrullination, and production of autoantibodies against citrullinated proteins are hallmarks of rheumatoid arthritis (RA).
Myriam Martin +14 more
doaj +1 more source
Acquired angioedema due to C1-inhibitor deficiency (C1–INH-AAE) is a rare disease that can be diagnosed via complement testing. It often accompanies lymphoproliferative underlying diseases.
Zsofia Polai +4 more
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Potential therapeutic benefit of C1-esterase inhibitor in neuromyelitis optica evaluated in vitro and in an experimental rat model. [PDF]
Neuromyelitis optica (NMO) is an autoimmune demyelinating disease of the central nervous system in which binding of anti-aquaporin-4 (AQP4) autoantibodies (NMO-IgG) to astrocytes causes complement-dependent cytotoxicity (CDC) and inflammation resulting ...
Lukmanee Tradtrantip +3 more
doaj +1 more source
Models of the complement C1 complex [PDF]
Almitairi et al. (1) present structural information on the interaction between the proteases C1r and C1s, both consisting of six domains, called CUB1-EGF-CUB2-CCP1-CCP2-SP. The authors also propose a model for the C1 complex where the C1r2s2 tetramer is bound to C1q. Using our published and deposited small-angle X-ray scattering (SAXS) data (2) for the
Simon A. Mortensen +6 more
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Structure of the C1 complex of complement [PDF]
In PNAS, Mortensen et al. (1) propose a model of the C1 complex of complement derived from small-angle X-ray scattering (SAXS) and electron microscopy (EM) analyses that contradicts previously published models and suggests an intermolecular activation process. This proposal is largely derived from a conjectural structure of C1r2C1s2, the catalytic unit
Arlaud, Gérard J +3 more
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Human plasma-derived C1 esterase inhibitor concentrate has limited effect on house dust mite-induced allergic lung inflammation in mice. [PDF]
C1 esterase inhibitor (C1-INH) can inhibit multiple pathways (complement, contact-kinin, coagulation, and fibrinolysis) that are all implicated in the pathophysiology of asthma.
Ingrid Stroo +11 more
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Identification of defensin binding to C1 complement [PDF]
In human serum we found strong defensin binding to the complexes of activated C1 complement (C) and C1 inhibitor (C1i). Purified C1q, activated C1 tetramer ( 2 2) and C1i did not bind defensin. When ( 2 2) was dissociated by EDTA, only the activated C1s (Cs) bound defensin.
Panyutich, Alexander V. +4 more
openaire +2 more sources

