Results 1 to 10 of about 40,699 (261)

Human complement regulators C4b-binding protein and C1 esterase inhibitor interact with a novel outer surface protein of Borrelia recurrentis. [PDF]

PLoS Neglected Tropical Diseases, 2010
The spirochete Borrelia recurrentis is the causal agent of louse-borne relapsing fever and is transmitted to humans by the infected body louse Pediculus humanus. We have recently demonstrated that the B.
Sonja Grosskinsky, Melanie Schott, Christiane Brenner, Sally J Cutler, Markus M Simon, Reinhard Wallich   +5 more
doaj   +6 more sources

Increased plasma concentrations of complement modulating proteins (C1 inhibitor, C4-binding protein, factor H and factor I) in psoriasis.

The Tohoku Journal of Experimental Medicine, 1988
By using single radial immunodiffusion we measured the plasma levels of four complement modulating proteins, i.e., C1 inhibitor, C4-binding protein, factor H and factor I in 19 psoriatic patients in comparison with those of healthy controls. Except for C1 inhibitor which was only marginally elevated, they were found to be significantly increased in ...
K, Ohkohchi, W, Torinuki, H, Tagami
semanticscholar   +5 more sources

Complement Regulatory Protein C1 Inhibitor Binds to Selectins and Interferes with Endothelial-Leukocyte Adhesion [PDF]

The Journal of Immunology, 2003
AbstractC1 inhibitor (C1INH), a member of the serine proteinase inhibitor (serpin) family, is an inhibitor of proteases in the complement system, the contact system of kinin generation, and the intrinsic coagulation pathway. It is the most heavily glycosylated plasma protein, containing 13 definitively identified glycosylation sites as well as an ...
Shenghe, Cai, Alvin E, Davis
semanticscholar   +4 more sources

An anti-endotoxin peptide that generates from the amino-terminal domain of complement regulatory protein C1 inhibitor

Biochemical and Biophysical Research Communications, 2007
C1 inhibitor (C1INH), a complement regulatory protein, prevents endotoxin shock via a direct interaction of the amino-terminal domain with gram-negative bacterial lipopolysaccharide (LPS). Importantly, the cleaved, inactive C1INH still is an anti-endotoxin effector indicating the anti-endotoxin peptide that generates from the amino-terminal domain of ...
Haimou, Zhang, Jinan, Li, Robert A, Barrington, Gang, Liang, Gangjian, Qin, Dong-Xu, Liu   +5 more
semanticscholar   +4 more sources

Citrullination of C1-inhibitor as a mechanism of impaired complement regulation in rheumatoid arthritis

Frontiers in Immunology, 2023
BackgroundDysregulated complement activation, increased protein citrullination, and production of autoantibodies against citrullinated proteins are hallmarks of rheumatoid arthritis (RA).
Myriam Martin, Sara C. Nilsson, David Eikrem, Karin Fromell, Carsten Scavenius, Leonie M. Vogt, Ewa Bielecka, Jan Potempa, Jan Potempa, Jan J. Enghild, Bo Nilsson, Kristina N. Ekdahl, Kristina N. Ekdahl, Meliha C. Kapetanovic, Anna M. Blom   +14 more
doaj   +2 more sources

The role of C1 inhibitor and complement as acute phase reactants: are we missing the diagnosis of hereditary angioedema?

Allergy, Asthma & Clinical Immunology, 2021
Background C1 inhibitor (C1-INH) and complement 4 (C4) have historically been referred to as positive acute phase reactants, however this has never been evaluated in hereditary angioedema (HAE) patients.
Peter Stepaniuk, Ana-Maria Bosonea, Persia Pourshahnazari, Adrienne Roos, Amin Kanani   +4 more
doaj   +2 more sources

Molecular Basis for Bordetella pertussis Interference with Complement, Coagulation, Fibrinolytic, and Contact Activation Systems: the Cryo-EM Structure of the Vag8-C1 Inhibitor Complex

mBio, 2021
Complement, contact activation, coagulation, and fibrinolysis are serum protein cascades that need strict regulation to maintain human health. Serum glycoprotein, a C1 inhibitor (C1-INH), is a key regulator (inhibitor) of serine proteases of all the ...
Arun Dhillon, Justin C. Deme, Emily Furlong, Dorina Roem, Ilse Jongerius, Steven Johnson, Susan M. Lea   +6 more
doaj   +2 more sources

Serum concentrations of C reactive protein, α₁antitrypsin, and complement (C3, C4, C1 esterase inhibitor) before and during the Vuelta a Espańa [PDF]

British Journal of Sports Medicine, 2006
Objectives:To determine serum concentrations of proinflammatory (C reactive protein, complement C3 and C4) and anti-inflammatory (α1antitrypsin, C1 esterase inhibitor (C1-INH)) acute phase proteins in elite cyclists before and during a three week cycle tour.Methods:Seventeen professional cyclists participating in the Vuelta a Espańa volunteered for the
Semple, Stuart, Smith, L. L., McKune, Andrew J., Hoyos, J., Mokgethwa, B., San Juan, Alejandro F., Lucía Mulas, Alejandro, Wadee, Ahmed   +7 more
openaire   +5 more sources

SARS-CoV-2 nucleocapsid protein forms complexes with soluble complement regulatory proteins that can bind to the virion [PDF]

Scientific Reports
The SARS-CoV-2 nucleocapsid protein has been detected in the plasma of COVID-19 patients, and its levels in the plasma correlate with the severity of the disease. It is also an immunomodulatory protein, triggering the release of proinflammatory cytokines.
Jakub Víglaský, Katarína Bhide, Lea Talpasova, Ľubica Fialová, Mangesh Bhide   +4 more
doaj   +2 more sources

Cytokines Associated with Amyloid Plaques in Alzheimer's Disease Brain Stimulate Human Glial and Neuronal Cell Cultures to Secrete Early Complement Proteins, But Not C1-Inhibitor

Experimental Neurology, 1999
Complement activation products C1q, C4c/d, and C3c/d in amyloid plaques in Alzheimer's disease probably result from direct binding and activation of C1 by amyloid beta peptides. RT-PCR and in situ hybridization studies have shown that several complement factors are produced in the brain parenchyma.
Veerhuis, R., Janssen, I., de Groot, C. J., van Muiswinkel, F. L., Hack, C. E., Eikelenboom, P.   +5 more
openaire   +5 more sources