Results 11 to 20 of about 5,613 (194)

Requirements for membrane attack complex formation and anaphylatoxins binding to collagen-activated platelets. [PDF]

open access: yesPLoS ONE, 2011
The activation of complement during platelet activation is incompletely understood.We sought to explore the formation of C5b-9 and anaphylatoxins binding to collagen-activated platelets.C5b-9, anaphylatoxins C3a, C4a and C5a, and anaphylatoxin receptors ...
Catherine Martel   +6 more
doaj   +3 more sources

Anaphylatoxins in organ transplantation

open access: yesSeminars in Immunology, 2013
C3a and C5a (also called anaphylatoxins) are inflammatory peptides generated during complement activation. They do not only play important roles in innate immunity through the initiation and regulation of inflammatory responses, but also significantly influence adaptive immune responses.
Li, Ke, Zhou, Wuding
openaire   +4 more sources

C3a and C5a plasma concentrations in patients with diabetic retinopathy: a cross-sectional study [PDF]

open access: yesInternational Journal of Retina and Vitreous
Background Diabetic retinopathy (DR) is the leading cause of irreversible blindness in adults, with inflammation playing a critical role in its pathogenesis, particularly involving the complement system (CS). Components of the complement cascade, such as
Paula Basso Dias   +4 more
doaj   +2 more sources

Anaphylatoxins inhibit C2 production

open access: yes, 1983
Anaphylatoxins C5a and C3a and their des Arg derivatives inhibited C2 production by mononuclear phagocytes. C5a and C5adesArg which were approximately equipotent (IC50 = 10(-10) mol/l) were more effective than C3a (IC50 = 5 X 10(-8) mol/l) which was ...
Lappin, D., Whaley, K., Damerau, B.
core   +8 more sources

Interleukin-33 amplifies human mast cell activities induced by complement anaphylatoxins

open access: yes, 2020
Both, aberrant mast cell responses and complement activation contribute to allergic diseases. Since mast cells are highly responsive to C3a and C5a, while Interleukin-33 (IL-33) is a potent mast cell activator, we hypothesized that IL-33 critically ...
Wileman, Georgia   +8 more
core   +11 more sources

Anaphylatoxins orchestrate Th17 response via interactions between CD16+ monocytes and pleural mesothelial cells in tuberculous pleural effusion.

open access: yesPLoS Neglected Tropical Diseases, 2021
The complement system is activated in tuberculous pleural effusion (TPE), with increased levels of the anaphylatoxins stimulating pleural mesothelial cells (PMCs) to secrete chemokines, which recruit nonclassical monocytes to the pleural cavity.
Shuanglinzi Deng   +8 more
doaj   +1 more source

Modulation of Neutrophil Activity by Soluble Complement Cleavage Products—An In-Depth Analysis

open access: yesCells, 2022
The cellular and fluid phase-innate immune responses of many diseases predominantly involve activated neutrophil granulocytes and complement factors.
Lisa Wohlgemuth   +14 more
doaj   +1 more source

Biomarkers of the Complement System Activation (C3a, C5a, sC5b-9) in Serum of Patients before and after Liver Transplantation

open access: yesBiomedicines, 2023
The liver has a huge impact on the functioning of our body and the preservation of homeostasis. It is exposed to many serious diseases, which may lead to the chronic failure of this organ, which is becoming a global health problem today.
Marta Budkowska   +11 more
doaj   +1 more source

The Dual Role of a Polyvalent IgM/IgA-Enriched Immunoglobulin Preparation in Activating and Inhibiting the Complement System

open access: yesBiomedicines, 2021
Activation of the complement system is important for efficient clearance of a wide variety of pathogens via opsonophagocytosis, or by direct lysis via complement-dependent cytotoxicity (CDC).
Carolin Schmidt   +8 more
doaj   +1 more source

Role of the Complement System in the Modulation of T-Cell Responses in Chronic Chagas Disease

open access: yesFrontiers in Cellular and Infection Microbiology, 2022
Chagas disease, caused by the intracellular pathogen Trypanosoma cruzi, is the parasitic disease with the greatest impact in Latin America and the most common cause of infectious myocarditis in the world.
María Belén Caputo   +6 more
doaj   +1 more source

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