Results 71 to 80 of about 400,071 (226)

The “C3aR Antagonist” SB290157 is a Partial C5aR2 Agonist

Frontiers in Pharmacology, 2021
Innate immune complement activation generates the C3 and C5 protein cleavage products C3a and C5a, defined classically as anaphylatoxins. C3a activates C3aR, while C5a activates two receptors (C5aR1 and C5aR2) to exert their immunomodulatory activities ...
Xaria X. Li, Vinod Kumar, Richard J. Clark, John D. Lee, Trent M. Woodruff   +4 more
doaj   +1 more source

Complement Activation Linked to Type II Interferon Signaling in Still Disease

Arthritis &Rheumatology, EarlyView.
Objective Still disease (SD) is an autoinflammatory syndrome characterized by innate immune dysregulation. Although complement can drive inflammation, its involvement in SD remains to be defined. Thus, we aimed to assess complement activation in SD. Methods Complement was assessed using transcriptomic, proteomic, and in vitro approaches. RNA sequencing
Freya M. C. H. Huijsmans, Tabea Thalheim, Alejandra Bodelón, Greta Rogani, Lyanne J. P. M. Sijbers, Remco G. A. Erkens, Aafke de Ligt, Rianne Scholman, Aron Brinker, Gisella B. Beretta, Nienke M. Ter Haar, Thomas Vogl, Johannes Roth, Trang T. Duong, Sytze de Roock, Joost F. Swart, Deborah A. Marshall, Susanne M. Benseler, Rae S. M. Yeung, Christoph Kessel, Sebastiaan J. Vastert, Emely L. Verweyen, Jorg van Loosdregt, on behalf of the UCAN CAN‐DU/UCAN CURE Consortia and the One Child Every Child Initiative, Adam Huber, Bianca Lang, Chelsea DeCoste, Elizabeth Stringer, Suzanne Ramsey, Alan Rosenberg, Kate Neufeld, Mehul Jariwala, Tristan Kerr, Alexander Mosoiu, Alisa Rachlis, Amy Xu, Arthur Cheng, Brenleigh Jebb, Brian Feldman, Bruno Pereira, Deborah Levy, Dilan Dissanayake, Elizaveta Limenis, Evelyn Rozenblyum, Harper Cheng, Jennifer Ji Young Lee, Lynn Spiegel, Rayfel Schneider, Ronald Laxer, Ruud Verstegen, Shirley Tse, Andrea Human, David Cabral, Herman Tam, Jaime Guzman, Kim Morishita, Kristin Houghton, Lori Tucker, Mercedes Chan, Ross Petty, Tommy Gerschman, Annet van Royen‐Kerkhof, Berent Prakken, Erika Van Nieuwenhove, Marc Jansen, Nico Wulffraat, Ciarán Duffy, Nadia Luca, Roman Jurencak, Tala El Tal, Claire LeBlanc, Gaëlle Chédeville, Piya Lahiry, Rosie Scuccimarri, Sarah Campillo, Clare Hutchinson, Daniah Basodan, Dax G Rumsey, Hon Yan Ng, Jeanine McColl, Lillian Lim, Tara McGrath, Danielle Brinkman, Petra Hissink Muller, Elizabeth Legger, Wineke Armbrust, Ellen Schatorje, Esther Hoppenreijs, Elodie Boudes, Gillian Currie, Heinrike Schmeling, Muhammed Dhalla, Nicole Johnson, Paivi Miettunen, Ravneet Sran, Rebeka Stevenson, Erkan Demirkaya, Jonathan Park, Roberta Berard, Giske Biesbroek, Mariken Gruppen, Gordon Soon, Joseph Cafazzo, Liane Heale, Michelle Batthish, Tania Cellucci, Lily Lim, Maarten IJzerman, Marinka Twilt, Marleen Verkaaik, Philomine van Pelt, Sylvia Kamphuis, Michelle Kip, Nicholas Blanchette, Paul Dancey, Regina de Geus   +115 more
wiley   +1 more source

Antifungal activity of C3a and C3a-derived peptides against Candida [PDF]

, 2007
Antimicrobial peptides are generated during activation of the complement system [Nordahl et al. Proc. Natl. Acad. Sci. U. S. A. 2004, 101:16879-16884].
Ringstad, Lovisa,, Sonesson, Andreas, Ringstad, Lovisa, Malmsten, Martin, Schmidtchen, Artur, Malmsten, Martin,, Mörgelin, M, Andersson Nordahl, Emma, Mörgelin, Matthias, Nordahl, Emma, Sonesson, A, Schmidtchen, A   +11 more
core   +1 more source

Navigating adverse immunostimulation: A practical guide for clinical researchers

British Journal of Clinical Pharmacology, EarlyView.
Problem Setting As drug development moves towards more complex products, early clinical development programmes are increasingly hampered by unwanted and/or unexpected activation of the immune system (adverse immune stimulation, AIS). Solution At the Centre for Human Drug Research, we have introduced standardized procedures to make AIS manageable, while
Juliette A. van den Noort, Anouk C. Meijs, Naomi B. Klarenbeek, Matthijs Moerland   +3 more
wiley   +1 more source

Targeting C3a and C5a Signaling—A Game Changer for Cancer Therapy?

Biology
Emerging evidence reveals a significant shift in understanding the complement system’s role in cancer, where activation of a complement within the tumor microenvironment (TME) fuels tumor growth and metastasis instead of suppressing it.
Hunter Hudgins, Valeria Molina, Stanley Wiernicki, Kenneth Okwuegbe, Xiaodong Feng, Hongbin Wang   +5 more
doaj   +1 more source

Adverse immunostimulation in early phase clinical trials: Key findings and recommendations based on the investigator's clinical experience

British Journal of Clinical Pharmacology, EarlyView.
Problem setting The emergence of therapeutic proteins has coincided with an increase of acute adverse immunostimulation (AIS). AIS has occured in clinical trials despite compliance with regulatory guidelines on preclinical evaluation and its incidence is anticipated to increase even further.
Juliette A. van den Noort, Marella C. E. van Ruissen, Lisanne C. A. Smidt, Naomi B. Klarenbeek, Philip H. K. Kremer, Manon A. A. Jansen, Jacobus Burggraaf, Joop M. A. van Gerven, Matthijs Moerland   +8 more
wiley   +1 more source

Induction of Complement C3a Receptor Responses by Kallikrein-Related Peptidase 14 [PDF]

The Journal of Immunology, 2013
Abstract Activation of the complement system is primarily initiated by pathogen- and damage-associated molecular patterns on cellular surfaces. However, there is increasing evidence for direct activation of individual complement components by extrinsic proteinases as part of an intricate crosstalk between physiological effector systems ...
Katerina, Oikonomopoulou, Robert A, DeAngelis, Hui, Chen, Eleftherios P, Diamandis, Morley D, Hollenberg, Daniel, Ricklin, John D, Lambris   +6 more
openaire   +2 more sources

Neuroimmune regulation of adult hippocampal neurogenesis by Complement Component 3 and Complement C3a Receptor [PDF]

New neurons are added to the dentate gyrus of the hippocampus throughout adult life, through the process known as adult hippocampal neurogenesis (AHN). This important form of structural plasticity supports learning and memory in mammalian species. AHN is
Westacott, Laura
core   +6 more sources

Complement C3a signaling facilitates skeletal muscle regeneration by regulating monocyte function and trafficking. [PDF]

Nat Commun, 2017
Regeneration of skeletal muscle following injury is accompanied by transient inflammation. Here we show that complement is activated in skeletal muscle injury and plays a key role during regeneration. Genetic ablation of complement C3 or its inactivation
Zhang C, Wang C, Li Y, Miwa T, Liu C, Cui W, Song WC, Du J.   +7 more
europepmc   +2 more sources

Complement receptor C3aR marks heterogeneous tumor-associated macrophage states associated with improved survival in IDH-wildtype glioblastoma. [PDF]

Brain Pathol
C3aR expression in IDH‐wildtype glioblastoma is predominantly associated with the myeloid/macrophage compartment and heterogeneous macrophage states. C3aR‐high tumors are enriched among MGMT promoter‐methylated tumors and show improved overall survival, although the prognostic association requires independent validation.
Imara M, Bedoui Y, Pignolet T, Freppel S, Brochard C, Delattre A, Cappellen D, Bauchet L, Khettab M, Ah-Pine F.   +9 more
europepmc   +2 more sources