Results 1 to 10 of about 18,170 (112)

Stiffness-tuned and ROS-sensitive hydrogel incorporating complement C5a receptor antagonist modulates antibacterial activity of macrophages for periodontitis treatment [PDF]

Bioactive Materials, 2023
Periodontitis is admittedly a microbe-driven intractable infectious disease, in which Porphyromonas gingivalis (Pg) plays a keystone role. Pg can selectively impair the antimicrobial responses of periodontal resident macrophages including their ...
Ziqi Gan, Zecong Xiao, Zhen Zhang, Yang Li, Chao Liu, Xin Chen, Yuanbo Liu, Dongle Wu, Chufeng Liu, Xintao Shuai, Yang Cao   +10 more
doaj   +4 more sources

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

Journal 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, Ida Mariegaard, Mikkel-Ole Skjødt, Rafael Bayarri-Olmos, Tom Eirik Mollnes, Peter Garred, Anne Rosbjerg   +6 more
doaj   +2 more sources

Complement C5a Receptor Signaling Alters Stress Responsiveness and Modulates Microglia Following Chronic Stress Exposure [PDF]

Biological Psychiatry Global Open Science
Background: Accumulating evidence underscores the pivotal role of heightened inflammation in the pathophysiology of stress-related diseases, but the underlying mechanisms remain elusive.
Hsiao-Jou Cortina Chen, Jereme G. Spiers, Titaya Lerskiatiphanich, Sandra E. Parker, Nickolas A. Lavidis, Jenny N. Fung, Trent M. Woodruff, John D. Lee   +7 more
doaj   +2 more sources

Ras-Related Protein Rab5a Regulates Complement C5a Receptor Trafficking, Chemotaxis, and Chemokine Secretion in Human Macrophages [PDF]

Journal of Innate Immunity, 2023
Complement activation and Rab GTPase trafficking are commonly observed in inflammatory responses. Recruitment of innate immune cells to sites of infection or injury and secretion of inflammatory chemokines are promoted by complement component 5a (C5a ...
Kai-Chen Wu, Nicholas D Condon, Timothy A. Hill, Robert C. Reid, David Fairlie, Junxian Lim   +5 more
doaj   +2 more sources

Complement C3a and C5a receptor blockade modulates regulatory T cell conversion in head and neck cancer [PDF]

Journal for ImmunoTherapy of Cancer, 2021
Background Resistance to therapy is a major problem in treating head and neck squamous cell carcinomas (HNSCC). Complement system inhibition has been shown to reduce tumor growth, metastasis, and therapeutic resistance in other tumor models, but has yet ...
Emily K Kleczko, Raphael A Nemenoff, Michael William Knitz   +2 more
doaj   +2 more sources

The Controversial C5a Receptor C5aR2: Its Role in Health and Disease [PDF]

Journal of Immunology Research, 2017
After the discovery of the C5a receptor C5aR1, C5aR2 is the second receptor found to bind C5a and its des-arginine form. As a heptahelical G protein-coupled receptor but devoid of the intracellular Gα signal, C5aR2 is special and confusing. Ramifications
Ting Zhang, Malgorzata A. Garstka, Ke Li
doaj   +2 more sources

The complement system and its role in the treatment of ANCA-associated vasculitis

Journal of Education, Health and Sport, 2022
Objective: This study aimed to evaluate the role of the complement system in a therapy of the ANCA- associated vasculitis.   Methods and materials: A literature search was conducted in the PubMed MEADLINE database of medical publications using the
Natalia Rybak, Iga Dudek, Jakub Czarnota, Michał Dobrzyński, Tomasz Skubel, Małgorzata Drozd   +5 more
doaj   +1 more source

C5a enhances dysregulated inflammatory and angiogenic responses to malaria in vitro: potential implications for placental malaria. [PDF]

PLoS ONE, 2009
Placental malaria (PM) is a leading cause of maternal and infant mortality. Although the accumulation of parasitized erythrocytes (PEs) and monocytes within the placenta is thought to contribute to the pathophysiology of PM, the molecular mechanisms ...
Andrea Conroy, Lena Serghides, Constance Finney, Simon O Owino, Sanjeev Kumar, D Channe Gowda, W Conrad Liles, Julie M Moore, Kevin C Kain   +8 more
doaj   +1 more source

A pro-inflammatory role of C5L2 in C5a-primed neutrophils for ANCA-induced activation. [PDF]

PLoS ONE, 2013
BACKGROUND:The complement system is crucial for the development of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). In particular, C5a and its receptor on neutrophils, CD88, play a central role.
Jian Hao, Chen Wang, Jun Yuan, Min Chen, Ming-Hui Zhao   +4 more
doaj   +1 more source

Interleukin-33 Amplifies Human Mast Cell Activities Induced by Complement Anaphylatoxins

Frontiers in Immunology, 2021
Both, aberrant mast cell responses and complement activation contribute to allergic diseases. Since mast cells are highly responsive to C3a and C5a, while Interleukin-33 (IL-33) is a potent mast cell activator, we hypothesized that IL-33 critically ...
Peter W. West, Rajia Bahri, Karen M. Garcia-Rodriguez, Georgia Sweetland, Georgia Wileman, Rajesh Shah, Angeles Montero, Laura Rapley, Silvia Bulfone-Paus   +8 more
doaj   +1 more source