Results 31 to 40 of about 15,469 (215)

The Role of Complement in Cancer Immunotherapy [PDF]

open access: yes, 2022
The dual role of complement in both cancer development and treatment has been investigated extensively and is characterized by a substantial literature that documents the conditions in which complement can either enhance tumor growth or promote the ...

core   +1 more source

Complement inhibition promotes endogenous neurogenesis and sustained anti-inflammatory neuroprotection following reperfused stroke. [PDF]

open access: yesPLoS ONE, 2012
The restoration of blood-flow following cerebral ischemia incites a series of deleterious cascades that exacerbate neuronal injury. Pharmacologic inhibition of the C3a-receptor ameliorates cerebral injury by attenuating post-ischemic inflammation. Recent
Andrew F Ducruet   +11 more
doaj   +1 more source

Efficient chemical synthesis of human complement protein C3a [PDF]

open access: yesChemical 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   +5 more sources

Potent thiophene antagonists of human complement C3a receptor with anti-inflammatory activity [PDF]

open access: yes, 2020
Structure-activity relationships for a series of small-molecule thiophenes resulted in potent and selective antagonism of human Complement C3a receptor. The compounds are about 100-fold more potent than the most reported antagonist SB290157.
Hamidon, Johan K   +17 more
core   +3 more sources

Mitochondrial C3a Receptor Activation in Oxidatively Stressed Epithelial Cells Reduces Mitochondrial Respiration and Metabolism

open access: yesFrontiers in Immunology, 2021
Complement component 3 fragment C3a is an anaphylatoxin involved in promoting cellular responses important in immune response and host defense. Its receptor (C3a receptor, C3aR) is distributed on the plasma membrane; however, lysosomal localization in ...
Masaaki Ishii   +5 more
doaj   +1 more source

Changes in complement activation products after anti-VEGF injection for choroidal neovascularization in age-related macular degeneration and pachychoroid disease

open access: yesScientific 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

Europium-Labeled Synthetic C3a Protein as a Novel Fluorescent Probe for Human Complement C3a Receptor [PDF]

open access: yesBioconjugate 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   +5 more sources

The Role of Complement in Tumors [PDF]

open access: yes, 2020
The complement system is an essential part of the innate immune system that is responsible for regulating inflammation, facilitating immune defense mechanisms, and maintaining tissue homeostasis.

core   +1 more source

Increased ratios of complement factors C3a to C3 in aqueous humor and serum mark glaucoma progression [PDF]

open access: yes, 2021
Introduction: We recently performed a combined analysis of publicly available proteomic studies of aqueous humor (AH) of patients with primary open angle glaucoma (POAG).
C.A.B. Webers   +7 more
core   +1 more source

Staphylococcus aureus proteins Sbi and Efb recruit human plasmin to degrade complement C3 and C3b [PDF]

open access: yes, 2012
Upon host infection, the human pathogenic microbe Staphylococcus aureus (S. aureus) immediately faces innate immune reactions such as the activated complement system. Here, a novel innate immune evasion strategy of S. aureus is described.
Peter F. Zipfel   +17 more
core   +1 more source

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