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Cytokines mast cell

Inflammation. Figure 1 Sequence of events in the recruitment of leukocytes in postcapillary venules adjacent to injured tissue. At the site of lesion, diverse reactive substances stimulate the endothelium to produce inflammatory cytokines, chemoattractants and other inflammatory mediators. The cytokine-activated endothelium expresses adhesion molecules that lead to the low affinity interactions between leukocytes and endothelium, which is mediated by selectins and described as rolling. Subsequently integrins mediate the firm adhesion of leukocytes, which allows emigration of the cells from venules into the interstitial compartment. Activated mast cells, PMNs and macrophages secrete cytokines (TNFa), lipid mediators (LTB4) and other inflammatory players (histamine, NO). [Pg.628]

A cytokine, secreted by TH2-cells and mast cells, stimulates B-cell growth, acts as hematopoietic factor for growth factor eosinophils, and extends the life span of eosinophils. [Pg.647]

The role of NFAT in the immune system is not restricted to T cells. NFAT proteins are also expressed in other cells of the immune system, such as B cells, NK cells, and mast cells, where they have been shown to regulate the expression of cytokines, cell surface receptors, and immunoglobulins [4, 5]. [Pg.849]

Type I allergic reactions are inappropriate immune responses to an allergen with preferential synthesis of immunoglobulin E (IgE), a special antibody class, which binds to mast cells and basophilic granulocytes via Fee receptors. Binding of the allergen to the cell-bound IgE initiates the rapid release of allergic mediators, most prominently histamine, and the de novo synthesis of arachidonic acid metabolites and cytokines, which are responsible for the clinical symptoms. [Pg.1252]

Fig. 3. Th2 cells provide cytokines such as IL-4, IL-5, IL-9 and IL-13, which are essential for differentiation, survival and activity of basophils, mast cells and eosinophils. IL-4 and IL-13 induce IgE production from B cells. IL-5 induces eosinophils, increases eosinophil survival and reduces apoptosis. IL-9 stimulates mast cells. [Pg.30]

Tiwari N. Wang CC. Brochetta C, Ke G. Vita F. Qi Z. Rivera J. Soranzo MR, Zabucchi G, Hong W, Blank U VAMP-8 segregates mast cell-preformed mediator exocytosis from cytokine trafficking pathways. Blood 2008 11 3665-3674. [Pg.64]

Leung WH, Holland S The inositol 5 -phosphatase SHIP-2 negatively regulates IgE-induced mast cell degranulation and cytokine production. J Immunol 2007 179 95-102. [Pg.65]

Azelastine Hrreceptor antagonist, mast cell stabilizer May inhibit cytokine release... [Pg.940]


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