Results 11 to 20 of about 1,255,490 (262)

New insights for C5a and C5a receptors in sepsis [PDF]

open access: yesFrontiers in Immunology, 2012
The complement system plays a central role in inflammation and immunity. Among the complement activation products, C5a is one of the most potent inflammatory peptides with a broad spectrum of functions.
Hongwei eGao, Chunguang eYan
doaj   +7 more sources

Mapping the Ligand-Binding Site on the C5a Receptor:  Arginine74 of C5a Contacts Aspartate282 of the C5a Receptor

open access: yesBiochemistry, 2001
The interaction between the anaphylatoxin C5a and its receptor involves two distinct sites. One site is formed by acidic residues at the receptor N-terminus and contributes to only ligand binding. The second site, responsible for activation, is less well defined.
Cain, S. A.; id_orcid 0000-0001-8417-1058   +2 more
openaire   +3 more sources

Complement anaphylatoxin C5a neuroprotects through regulation of glutamate receptor subunit 2 in vitro and in vivo [PDF]

open access: yesJournal of Neuroinflammation, 2008
Background The complement system is thought to be involved in the pathogenesis of numerous neurological diseases. We previously reported that pre-treatment of murine cortico-hippocampal neuronal cultures with the complement derived anaphylatoxin C5a ...
Thomas Sunil   +2 more
doaj   +2 more sources

C5a receptor and thymocyte apoptosis in sepsis [PDF]

open access: yesThe FASEB Journal, 2002
ABSTRACT In sepsis, apoptosis occurs in many different organs. The mediators responsible for induction of apoptosis are not clearly known, although there are some suggestions that C5a and the C5a receptor (C5aR) might be directly linked to apoptosis.
Riedemann, Niels C.   +7 more
openaire   +5 more sources

Inhibiting the C5–C5a receptor axis

open access: yesMolecular Immunology, 2011
Activation of the complement system is a major pathogenic event that drives various inflammatory responses in numerous diseases. All pathways of complement activation lead to cleavage of the C5 molecule generating the anaphylatoxin C5a and, C5b that subsequently forms the terminal complement complex (C5b-9).
Woodruff, Trent M.   +2 more
openaire   +6 more sources

The role of C5a receptors in autoimmunity

open access: yesImmunobiology, 2023
The complement system is an essential component of the innate immune response and plays a vital role in host defense and inflammation. Dysregulation of the complement system, particularly involving the anaphylatoxin C5a and its receptors (C5aR1 and C5aR2), has been linked to several autoimmune diseases, indicating the potential for targeted therapies ...
Jovan, Schanzenbacher   +5 more
openaire   +2 more sources

Unidirectional heterologous receptor desensitization between both the fMLP and C5a receptor and the IL‐8 receptor [PDF]

open access: yes, 1996
During inflammation neutrophils receive multiple signals that are integrated, allowing a single modified response. One mechanism for this discrimination is receptor desensitization, a process whereby ligand‐receptor binding is disassociated from cell ...
Blackwood, R. Alexander   +9 more
core   +1 more source

Pharmacological Stimulation of Phagocytosis Enhances Amyloid Plaque Clearance; Evidence from a Transgenic Mouse Model of ATTR Neuropathy

open access: yesFrontiers in Molecular Neuroscience, 2017
Hereditary ATTR V30M amyloidosis is a lethal autosomal dominant sensorimotor and autonomic neuropathy caused by deposition of aberrant transthyretin (TTR).
Eleni Fella   +11 more
doaj   +1 more source

Functions of C5a receptors [PDF]

open access: yesJournal of Molecular Medicine, 2009
The split product of the complement protein, C5, is C5a and is an extremely potent pro-inflammatory peptide that interacts with two C5a receptors, C5aR and C5L2, present on surfaces of phagocytes as well as other cell types. The former is a well-established receptor that initiates G-protein-coupled signaling via mitogen-activated protein kinase ...
openaire   +2 more sources

HSP90-Mediates Liraglutide Preconditioning-Induced Cardioprotection by Inhibiting C5a and NF-κB

open access: yesJournal of Investigative Surgery, 2022
Objective We previously showed that HSP90 is involved in postconditioning cardioprotection by inhibiting complement C5a. Here, we investigated whether HSP90-mediated C5a/NF-κB inhibition is responsible for the cardioprotection conferred by liraglutide ...
Shi-Tao He   +6 more
doaj   +1 more source

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