Mast cells and histamine

Mast cells are long-lived immune cells distributed throughout tissues that release histamine and a range of cytokines when activated, driving the rapid inflammatory responses characteristic of allergic disease. Researchers study how these cells sense danger signals, coordinate with basophils and T cells, and calibrate the intensity of immune reactions — work that has direct implications for conditions ranging from common allergies to the rare proliferative disorder mastocytosis. A central open question is how mast cells switch between protective and pathological roles, given that the same activation pathways that defend against parasites can fuel chronic inflammation. Current efforts focus on mapping the signaling cascades that govern mast cell behavior and identifying molecular targets that could allow selective suppression of harmful responses without broadly compromising immunity.

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Keywords

Mast CellsAllergic DiseaseImmune ResponsesHistamineBasophilsT Cell Activation