Results 11 to 20 of about 51,606 (244)

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   +8 more sources

Macrophages self-generate and refine chemotactic gradients during migration towards complement C5a. [PDF]

open access: yesPLoS Biology
Macrophages rely on efficient chemotaxis to locate sites of infection and tissue damage. One general strategy that enhances chemotactic accuracy is the use of self-generated gradients, where cells locally deplete attractants to create or sharpen guidance
Abhimanyu Kiran   +11 more
doaj   +2 more sources

The free fatty acid 2 receptor regulates C5a induced neutrophil superoxide production and its sensitivity to inhibition by the antagonist avacopan [PDF]

open access: yesFrontiers in Immunology
IntroductionReceptor transactivation is a novel signaling mechanism used by several different neutrophil G protein-coupled receptors (GPCRs) to activate an allosterically modulated receptor that recognizes short chain free fatty acids.
Zahra Khan   +8 more
doaj   +2 more sources

The effect of various forms of treatment of vasculitis on C3, C4 and C5a complement levels in infants and children attending Assiut University Children Hospital (AUCH) [PDF]

open access: yesE3S Web of Conferences, 2023
Vasculitis is an umbrella term for various and heterogeneous disorders sharing the presence of inflammation of blood vessel walls (Geetha & Jefferson, 2020).
Fatthi Dalal Abdullah
doaj   +1 more source

New targets of morphine postconditioning protection of the myocardium in ischemia/reperfusion injury: Involvement of HSP90/Akt and C5a/NF-κB

open access: yesOpen Medicine, 2021
Activation of the complement component 5a (C5a) and nuclear factor κB (NF-κB) signaling is an important feature of myocardial ischemia/reperfusion (I/R) injury and recent studies show that morphine postconditioning (MP) attenuates the myocardial injury ...
Tu Rong-Hui   +7 more
doaj   +1 more source

Pseudomonas aeruginosa adaptation in cystic fibrosis patients increases C5a levels and promotes neutrophil recruitment

open access: yesVirulence, 2022
Cystic fibrosis (CF) disease is characterized by an intense airway inflammatory response mediated by neutrophils and chronic respiratory infections caused by P. aeruginosa.
Margalida Mateu-Borrás   +6 more
doaj   +1 more source

Functional Analysis of a Novel Complement C5a Receptor 1-Blocking Monoclonal Antibody

open access: yesJournal of Innate Immunity, 2023
Introduction: The complement system anaphylatoxin C5a is a critical player in inflammation. By binding to complement C5a receptor 1 (C5aR1/CD88), C5a regulates many cellular functions, mainly as a potent pro-inflammatory inducer.
Leon Cyranka   +6 more
doaj   +1 more source

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

Overexpression of complement C5a indicates poor survival and therapeutic response in metastatic renal cell carcinoma

open access: yesThe International Journal of Biological Markers, 2023
Introduction Complement C5a is an important component of the innate immune system. An increasing number of reports have revealed the relevance of C5a in tumor progression; however, its exact role in metastatic renal cell carcinoma (mRCC) remains unknown.
Changjun Yang   +6 more
doaj   +1 more source

Persistence of High Levels of Serum Complement C5a in Severe COVID-19 Cases After Hospital Discharge

open access: yesFrontiers in Immunology, 2021
Evidence supports a role of complement anaphylatoxin C5a in the pathophysiology of COVID-19. However, information about the evolution and impact of C5a levels after hospital discharge is lacking. We analyzed the association between circulating C5a levels
Yaiza Senent   +35 more
doaj   +1 more source

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