Results 111 to 120 of about 6,229 (213)

IL‐33 Drives Inflammatory Changes and Extracellular Trap Formation in Eosinophils Involving Oxidised LDL and Complement Pathways

open access: yesAllergy, EarlyView.
IL‐33 induces inflammatory gene signatures in eosinophils, characterised by the upregulation of cell surface markers, inflammatory mediators and regulatory factors, all of which were also observed in nasal polyp‐derived eosinophils. Ox‐LDL and complement fragments (C3a and C5a) promote eosinophil adhesion and survival.
Emiko Matsuyama   +16 more
wiley   +1 more source

The Harmful Role of C5a on Innate Immunity in Sepsis

open access: yes, 2010
There is accumulating evidence in humans and in experimental sepsis that robust activation of the complement system occurs along with development of defects in the innate immune system.
Peter A. Ward
core   +1 more source

Basophils in Immunity: Activation Pathways, Roles in Allergy and AllergoOncology and Application of the Basophil Activation Test

open access: yesAllergy, EarlyView.
ABSTRACT Basophils, the least abundant leukocytes, are increasingly recognised as potent immunomodulators. Upon activation, they rapidly release preformed granule‐associated mediators including histamine and lipid mediators such as LTC4, while cytokine production occurs over a longer timescale, contributing to downstream immune responses.
Jitesh Chauhan   +5 more
wiley   +1 more source

C5a and mammary cancers.

open access: yes, 2013
Mammary cancers are among the most common neoplastic conditions in dogs, and there is evidence that inflammation plays a role in the development of some cancer types in dogs.
Mohd Noor, Mohd Hezmee
core   +1 more source

Distinct Gene Expression Profiles of Ara h 2‐Specific B Cells in Desensitization and Tolerance During Peanut Oral Immunotherapy

open access: yesAllergy, EarlyView.
Gene expression of Ara h 2‐specific B cells over the course of the peanut OIT. Isotype of allergen‐specific B cells changes through OIT towards IgG4. Peanut OIT changes the gene expression of allergen‐specific memory B cells. OIT patients showed increased gene expression for regulatory B cells and immune regulation.
Stephan R. Schneider   +48 more
wiley   +1 more source

Receptor activation by human C5a des Arg74 but not intact C5a is dependent on an interaction between Glu199 of the receptor and Lys68 of the ligand

open access: yes, 1999
Despite the expression of only one type of receptor, there is great variation in the ability of different cell types to discriminate between C5a and its more stable metabolite, C5a des Arg74. The mechanism that underlies this phenomenon is not understood
Monk, Peter N.   +4 more
core   +1 more source

Nomenclature on Immune‐Mediated Drug Reactions: An EAACI Position Paper

open access: yesAllergy, EarlyView.
ABSTRACT Over the past several decades, there have been significant advances in our understanding of both immunological and pharmacological mechanisms of adverse drug reactions (ADRs). Immune‐mediated drug reactions (IMDRs) represent a small proportion of ADRs and are caused by a pathological activation of the immune system or inflammatory pathways ...
Maria J. Torres   +19 more
wiley   +1 more source

Complement receptor C3aR marks heterogeneous tumor‐associated macrophage states associated with improved survival in IDH‐wildtype glioblastoma

open access: yesBrain Pathology, EarlyView.
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.
Marion Imara   +9 more
wiley   +1 more source

Acute anaphylactic and multiorgan inflammatory effects of Comirnaty in pigs: evidence of spike protein mRNA transfection and paralleling inflammatory cytokine upregulation

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Rare but severe adverse events (AEs) associated with mRNA‐lipid nanoparticle (LNP) COVID‐19 vaccines, such as Comirnaty, include anaphylaxis and inflammatory organ disorders, but their underlying mechanisms are poorly understood. We aimed to develop an animal model to study these phenomena.
László Dézsi   +13 more
wiley   +1 more source

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