Results 41 to 50 of about 265,122 (221)

Functional Analysis of Two Divergent C4 Isotypes in the Classical and Lectin Pathways of Complement Activation in the Common Carp (Cyprinus carpio)

open access: yesJournal of Marine Science and Engineering, 2023
In the evolution of the complement system, a major humoral innate immune factor, the existence of multiple isotypes of the complement components is considered as a key strategy to enhance innate immune defense. Complement C4 is also diversified in a wide
Rosli Nehlah   +4 more
doaj   +1 more source

Classical pathway complement activation on human endothelial cells [PDF]

open access: yesMolecular Immunology, 2007
Endothelial cells regulate vascular integrity and express complement binding proteins including gC1qR/p33 (gC1qR), which recognize C1q, a subunit of the first component of the classical complement pathway. Experiments were performed to investigate classical complement pathway activation on resting endothelial cells and endothelial cells exposed to ...
Wei, Yin   +3 more
openaire   +2 more sources

Early complementopathy predicts the outcomes of patients with trauma

open access: yesTrauma Surgery & Acute Care Open, 2019
Background Complementopathy (rapid complement activation and consumption after trauma) has been reported in trauma patients, but the underlying mechanism of these phenomena and their clinical significance remain unclear. This study aimed to determine the
Bin Liu   +6 more
doaj   +1 more source

Mannose binding lectin is required for alphavirus-induced arthritis/myositis [PDF]

open access: yes, 2015
Mosquito-borne alphaviruses such as chikungunya virus and Ross River virus (RRV) are emerging pathogens capable of causing large-scale epidemics of virus-induced arthritis and myositis.
Blevins, Lance K.   +10 more
core   +1 more source

Amniotic fluid embolism pathophysiology suggests the new diagnostic armamentarium: β-tryptase and complement fractions C3-C4 are the indispensable working tools [PDF]

open access: yes, 2015
Amniotic fluid embolism (AFE) is an uncommon obstetric condition involving pregnant women during labor or in the initial stages after delivery. Its incidence is estimated to be around 5.5 cases per 100,000 deliveries.
Busardo', FRANCESCO PAOLO   +3 more
core   +5 more sources

Development of a C3c-based ELISA method for the determination of anti-complementary potency of Bupleurum polysaccharides

open access: yesActa Pharmaceutica Sinica B, 2015
Traditionally, determination of inhibitory potency of complement inhibitors is performed by the hemolytic assay. However, this assay is not applicable to the lectin pathway, thus impeding the understanding of complement inhibitors against the overall ...
Mulu Wu   +3 more
doaj   +1 more source

Borrelia miyamotoi FbpA and FbpB Are Immunomodulatory Outer Surface Lipoproteins With Distinct Structures and Functions

open access: yesFrontiers in Immunology, 2022
Pathogens that traffic in the blood of their hosts must employ mechanisms to evade the host innate immune system, including the complement cascade. The Lyme disease spirochete, Borreliella burgdorferi, has evolved numerous outer membrane lipoproteins ...
Charles E. Booth   +3 more
doaj   +1 more source

Classical and alternative complement pathway activation by pneumococci [PDF]

open access: yesInfection and Immunity, 1977
Sixty-two strains of Streptococcus pneumoniae were studied for their abilities to consume selected components of classical and alternative complement pathways in human sera. The classical pathway was blocked by chelating calcium with ethyleneglycol-bios (beta-aminoethyl ether)-N,N-tetraacetic acid and by removing C4. The alternative pathway was blocked
C G, Stephens, R C, Williams, W P, Reed
openaire   +2 more sources

MafB is a critical regulator of complement component C1q [PDF]

open access: yes, 2017
The transcription factor MafB is expressed by monocytes and macrophages. Efferocytosis (apoptotic cell uptake) by macrophages is important for inhibiting the development of autoimmune diseases, and is greatly reduced in Mafb-deficient macrophages.
Andrea Christina-Sylvia   +24 more
core   +1 more source

Legionella pneumophila lipopolysaccharide activates the classical complement pathway [PDF]

open access: yesInfection and Immunity, 1992
Legionella pneumophila is a gram-negative bacterium capable of entering and growing in alveolar macrophages and monocytes. Complement and complement receptors are important in the uptake of L. pneumophila by human mononuclear phagocytes. The surface molecules of L. pneumophila that activate the complement system are unknown.
C S, Mintz   +3 more
openaire   +2 more sources

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