Results 31 to 40 of about 37,044 (196)
Efficient chemical synthesis of human complement protein C3a [PDF]
Chemical Communications, 2013 We report the total chemical synthesis of human C3a by one-pot native chemical ligation of three unprotected peptide segments, followed by efficient in vitro folding that yielded the anaphylatoxin C3a in high yield and excellent purity. Synthetic C3a was fully active and its crystal structure at 2.1 Å resolution showed 3 helices and a C-terminal turn ...
Ghassemian, Artin +7 more
openaire +4 more sources
Complementation of Subquandles [PDF]
Involve 18 (2025) 417-435, 2023 Saki and Kiani proved that the subrack lattice of a rack $R$ is necessarily complemented if $R$ is finite but not necessarily complemented if $R$ is infinite. In this paper, we investigate further avenues related to the complementation of subquandles.
arxiv +1 more source
Scientific Reports, 2021 We evaluated changes in the complement system resulting from anti-vascular endothelial growth factor (VEGF) in eyes with age-related choroidal neovascularization (CNV) including neovascular age-related macular degeneration, pachychoroid neovasculopathy ...
Keiichiro Tanaka +13 more
doaj +1 more source
Distinct roles for C3a and C5a in complement-induced tubulointerstitial injury [PDF]
Kidney International, 2011 To prevent injury to host tissues, complement activation is regulated by a number of plasma and membrane-associated proteins, most of which limit C3 and C5 activation. An influx of circulating C3 from a syngeneic host into donor kidneys deficient in Crry (a membrane protein that reduces C3 convertase activity) causes spontaneous complement activation ...
Lihua Bao +3 more
openaire +3 more sources
Reduced order modeling and analysis of the human complement system. [PDF]
PLoS ONE, 2017 Complement is an important pathway in innate immunity, inflammation, and many disease processes. However, despite its importance, there are few validated mathematical models of complement activation.
Adithya Sagar +4 more
doaj +1 more source
Europium-Labeled Synthetic C3a Protein as a Novel Fluorescent Probe for Human Complement C3a Receptor [PDF]
Bioconjugate Chemistry, 2017 Measuring ligand affinity for a G protein-coupled receptor is often a crucial step in drug discovery. It has been traditionally determined by binding putative new ligands in competition with native ligand labeled with a radioisotope of finite lifetime.
Aline Dantas de Araujo +6 more
openaire +4 more sources
Drusen complement components C3a and C5a promote choroidal neovascularization [PDF]
Proceedings of the National Academy of Sciences, 2006 Age-related macular degeneration (AMD) is the leading cause of irreversible blindness in industrialized nations, affecting 30–50 million people worldwide. The earliest clinical hallmark of AMD is the presence of drusen, extracellular deposits that accumulate beneath the retinal pigmented epithelium.
Eiji Sakurai +10 more
openaire +3 more sources
Complement activation contributes to perioperative neurocognitive disorders in mice
Journal of Neuroinflammation, 2018 Background The complement system plays an important role in many neurological disorders. Complement modulation, including C3/C3a receptor signaling, shows promising therapeutic effects on cognition and neurodegeneration.
Chao Xiong +5 more
doaj +1 more source
Anaphylatoxin C3a receptors in asthma
Respiratory Research, 2005 The complement system forms the central core of innate immunity but also mediates a variety of inflammatory responses. Anaphylatoxin C3a, which is generated as a byproduct of complement activation, has long been known to activate mast cells, basophils ...
Panettieri Reynold A, Ali Hydar
doaj +1 more source
The complement anaphylatoxin C3a receptor (C3aR) contributes to the inflammatory response in dextran sulfate sodium (DSS)-induced colitis in mice. [PDF]
PLoS ONE, 2013 Inflammatory bowel diseases are a critical public health issue, and as treatment options remain limited, there is a need to unravel the underlying pathomechanisms in order to identify new therapeutic targets.
Elisabeth Wende +6 more
doaj +1 more source