Results 21 to 30 of about 359,057 (288)

Complement Activation-Independent Attenuation of SARS-CoV-2 Infection by C1q and C4b-Binding Protein

Viruses, 2023
The complement system is a key component of the innate immune response to viruses and proinflammatory events. Exaggerated complement activation has been attributed to the induction of a cytokine storm in severe SARS-CoV-2 infection.
Nazar Beirag, Praveen M. Varghese, Martin Mayora Neto, Ahmad Al Aiyan, Haseeb A. Khan, Moneeb Qablan, Mohamed H. Shamji, Robert B. Sim, Nigel Temperton, Uday Kishore   +9 more
doaj   +1 more source

Cytokine and Complement Response in the Glaucomatous βB1-CTGF Mouse Model

Frontiers in Cellular Neuroscience, 2021
Glaucoma is a complex neurodegenerative disease leading to a loss of retinal ganglion cells (RGCs) and optic nerve axons. An activation of the complement system seems to contribute to cell loss in this disease.
Sabrina Reinehr, Johanna D. Doerner, Ana M. Mueller-Buehl, Dennis Koch, Rudolf Fuchshofer, H. Burkhard Dick, Stephanie C. Joachim   +6 more
doaj   +1 more source

Correction: Sez6L2 inhibits complement by facilitating factor I cleavage of C3b and accelerating the decay of C3 convertases [PDF]

Frontiers in Immunology
Wen Q. Qiu, Shaopeiwen Luo, Stefanie A. Ma, Priyanka Saminathan, Herman Li, Jenny M. Gunnersen, Harris A. Gelbard, Jennetta W. Hammond   +7 more
doaj   +2 more sources

Complement activation negatively affects the platelet response to thrombopoietin receptor agonists in patients with immune thrombocytopenia: a prospective cohort study

Platelets, 2023
Increased platelet destruction is central in the pathogenesis of immune thrombocytopenia. However, impaired platelet production is also relevant and its significance underlies the rationale for treatment with thrombopoietin receptor agonists (TPO-RAs ...
Alexander Åkesson, James B. Bussel, Myriam Martin, Anna M. Blom, Jenny Klintman, Waleed Ghanima, Eva Zetterberg, Lamya Garabet   +7 more
doaj   +1 more source

Multiple-Organ Complement Deposition on Vascular Endothelium in COVID-19 Patients

Biomedicines, 2021
Increased levels of circulating complement activation products have been reported in COVID-19 patients, but only limited information is available on complement involvement at the tissue level.
Paolo Macor, Paolo Durigutto, Alessandro Mangogna, Rossana Bussani, Luca De Maso, Stefano D’Errico, Martina Zanon, Nicola Pozzi, Pier Luigi Meroni, Francesco Tedesco   +9 more
doaj   +1 more source

Is the Complement Protein C1q a Pro- or Anti-tumorigenic Factor? Bioinformatics Analysis Involving Human Carcinomas

Frontiers in Immunology, 2019
C1q is the first subcomponent of the classical pathway of the complement system and belongs to the C1q/Tumor Necrosis Factor superfamily. C1q can perform a diverse range of immune and non-immune functions in a complement-dependent as well as -independent
Alessandro Mangogna, Chiara Agostinis, Deborah Bonazza, Beatrice Belmonte, Paola Zacchi, Gabriella Zito, Andrea Romano, Fabrizio Zanconati, Giuseppe Ricci, Giuseppe Ricci, Uday Kishore, Roberta Bulla   +11 more
doaj   +1 more source

Role of complement activation in anti-neutrophil cytoplasmic antibody-associated glomerulonephritis

Frontiers in Medicine, 2022
Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is an autoimmune disease characterized by necrotizing inflammation of small or medium vessels, causing ANCA associated glomerulonephritis (AAGN).
Tadasu Kojima, Takashi Oda
doaj   +1 more source

Structural insights into C3 convertase activity of the classical pathway of complement. [PDF]

Nat Commun
Immune protection by the complement system depends on C3 cleavage by C3 convertases that is critical to all three activation pathways. Structural data on convertase formation in the classical pathway and on C3-substrate binding to convertases is lacking.
De la O Becerra KI, Brondijk THC, Serna Martin I, Gros P.   +3 more
europepmc   +2 more sources

Paths reunited: initiation of the classical and lectin pathways of complement activation [PDF]

, 2010
Understanding the structural organisation and mode of action of the initiating complex of the classical pathway of complement activation (C1) has been a central goal in complement biology since its isolation almost 50 years ago.
Schmid, Ralf, Schwaeble, Wilhelm J., Wilhelm J. Schwaeble, Anthony H. Keeble, Russell Wallis, Mitchell, Daniel A., Keeble, Anthony H., Wallis, Russell, Ralf Schmid, Daniel A. Mitchell   +9 more
core   +1 more source

Complement in the Initiation and Evolution of Rheumatoid Arthritis

Frontiers in Immunology, 2018
The complement system is a major component of the immune system and plays a central role in many protective immune processes, including circulating immune complex processing and clearance, recognition of foreign antigens, modulation of humoral and ...
V. Michael Holers, Nirmal K. Banda
doaj   +1 more source