Results 71 to 80 of about 539,466 (329)

Neutrophils from ANCA-associated vasculitis patients show an increased capacity to activate the complement system via the alternative pathway after ANCA stimulation.

PLoS ONE, 2019
Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV), including granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA), are autoimmune conditions associated with small vessel inflammation.
Sophie Ohlsson, Lisa Holm, Christina Hansson, Susanne M Ohlsson, Lena Gunnarsson, Åsa Pettersson, Lillemor Skattum   +6 more
doaj   +1 more source

A novel assay that characterizes properdin function shows neutrophil-derived properdin has a distinct oligomeric distribution

Frontiers in Immunology, 2023
Properdin acts as an essential positive regulator of the alternative pathway of complement by stabilizing enzymatic convertases. Identical properdin monomers form head-to-tail associations of oligomers in a reported 20:54:26 ratio (most often described ...
Sara R. Moore, Smrithi S. Menon, Neeti S. Galwankar, Sadik A. Khuder, Michael K. Pangburn, Viviana P. Ferreira   +5 more
doaj   +1 more source

Inhibition of the alternative complement pathway by antisense oligonucleotides targeting complement factor B improves lupus nephritis in mice.

Immunobiology, 2016
Systemic lupus erythematosus is an autoimmune disease that manifests in widespread complement activation and deposition of complement fragments in the kidney.
Tamar R. Grossman, L. Hettrick, Robert B. Johnson, G. Hung, Raechel Q Peralta, A. Watt, S. Henry, P. Adamson, B. Monia, M. McCaleb   +9 more
semanticscholar   +1 more source

Cholesterol Crystals Activate the Lectin Complement Pathway via Ficolin-2 and Mannose-Binding Lectin: Implications for the Progression of Atherosclerosis. [PDF]

, 2016
Cholesterol crystals (CC) play an essential role in the formation of atherosclerotic plaques. CC activate the classical and the alternative complement pathways, but the role of the lectin pathway is unknown.
Genster, Ninette, Gál, Péter, Pilely, Katrine, Pál, Gábor, Rosbjerg, Anne   +4 more
core   +1 more source

Ischemia and reperfusion injury in kidney transplantation : relevant mechanisms in injury and repair [PDF]

, 2020
Ischemia and reperfusion injury (IRI) is a complex pathophysiological phenomenon, inevitable in kidney transplantation and one of the most important mechanisms for non- or delayed function immediately after transplantation.
Berger, Stefan P., Leuvenink, Henri G. D., Nieuwenhuijs-Moeke, Gertrude J., Pischke, Soren E., Ploeg, Rutger J., Pol, Robert A., Sanders, Jan Stephan F., Struys, Michel   +7 more
core   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Therapeutic approaches with intravitreal injections in geographic atrophy secondary to age-related macular degeneration: current drugs and potential molecules [PDF]

, 2019
The present review focuses on recent clinical trials that analyze the efficacy of intravitreal therapeutic agents for the treatment of dry age-related macular degeneration (AMD), such as neuroprotective drugs, and complement inhibitors, also called ...
Cerini, Alberto, Greco A., La Cava M, Lambiase A, Limoli PG, Nebbioso M   +5 more
core   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Ecotin, a microbial inhibitor of serine proteases, blocks multiple complement dependent and independent microbicidal activities of human serum.

PLoS Pathogens, 2019
Ecotin is a serine protease inhibitor produced by hundreds of microbial species, including pathogens. Here we show, that ecotin orthologs from Escherichia coli, Yersinia pestis, Pseudomonas aeruginosa and Leishmania major are potent inhibitors of MASP-1 ...
Zoltán Attila Nagy, Dávid Szakács, Eszter Boros, Dávid Héja, Eszter Vígh, Noémi Sándor, Mihály Józsi, Gábor Oroszlán, József Dobó, Péter Gál, Gábor Pál   +10 more
doaj   +1 more source

Immune Adherence by the Alternate Complement Pathway

Experimental Biology and Medicine, 1972
SummaryThe ability of the alternate complement pathway to generate the immune adherence reaction was studied in C4D guinea pig sera. It was found that IA via the alternate pathway could be generated by endotoxins and immune complexes, but that this phenomenon could not be produced by optimally sensitized intact mammalian cell membranes.
J E, May, M A, Kane, M M, Frank
openaire   +2 more sources