Mast cell activating syndrome (MCAS)
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Anaphylaxis: Pathophysiology, Risk Factors, and Clinical Management
Abstract: Anaphylaxis is a syndrome characterized by broncho-constriction, vasodilatation, and hypovolemia, potentially fatal exposure to known or unknown antigens. It can be an immune-mediated (IgE & non-IgE) disease. Immunoglobulin G (IgG), complement related (C3a/C5a), bradykinin, leukotrienes, prostaglandin E2, and ligands of certain G-protein coupled receptors (GPCR) can directly activate mast cells, basophils, eosinophils, neutrophils, endothelial cells and smooth muscles. Serum tryptase level during episodes of anaphylaxis, skin test, and basophil activation …
Published in Research and Reviews : A Journal of Immunology · Vol. 15, Issue 2, 2025 · pp. 1–11 Read article