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Effect of CC chemokines on mediator release from human skin mast cells and basophils. 1995

K Hartmann, and F Beiglböck, and B M Czarnetzki, and T Zuberbier
Virchow Clinics, Humboldt University of Berlin, Germany.

Chemokines are considered important mediators of various inflammatory processes. In human basophils, different CC chemokines are known to stimulate release of histamine and generation of leukotriene (LT)C4. In the present study, we have evaluated the effect of RANTES (regulated upon activation, normal T cell expressed and secreted), monocyte chemotactic protein (MCP)-1, MCP-2, MCP-3, macrophage inflammatory protein (MIP)-1 alpha and MIP-1 beta on mast cell activation. Whereas all these CC chemokines caused dose-dependent release of histamine from basophils in mixed human leukocyte suspensions, none of them was able to induce release of histamine as well as tryptase or prostaglandin (PG)D2 from human skin mast cells, nor did priming with these substances enhance IgE-mediated mediator release. In addition, all chemokines failed to promote changes in the cytosolic free calcium level in the human mast cell line HMC-1. These results add further evidence for the differences between human mast cells and basophils regarding cytokine-dependent activation.

UI MeSH Term Description Entries
D008407 Mast Cells Granulated cells that are found in almost all tissues, most abundantly in the skin and the gastrointestinal tract. Like the BASOPHILS, mast cells contain large amounts of HISTAMINE and HEPARIN. Unlike basophils, mast cells normally remain in the tissues and do not circulate in the blood. Mast cells, derived from the bone marrow stem cells, are regulated by the STEM CELL FACTOR. Basophils, Tissue,Basophil, Tissue,Cell, Mast,Cells, Mast,Mast Cell,Tissue Basophil,Tissue Basophils
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D006636 Histamine Release The secretion of histamine from mast cell and basophil granules by exocytosis. This can be initiated by a number of factors, all of which involve binding of IgE, cross-linked by antigen, to the mast cell or basophil's Fc receptors. Once released, histamine binds to a number of different target cell receptors and exerts a wide variety of effects. Histamine Liberation,Histamine Liberations,Histamine Releases
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001491 Basophils Granular leukocytes characterized by a relatively pale-staining, lobate nucleus and cytoplasm containing coarse dark-staining granules of variable size and stainable by basic dyes. Basophil
D012697 Serine Endopeptidases Any member of the group of ENDOPEPTIDASES containing at the active site a serine residue involved in catalysis. Serine Endopeptidase,Endopeptidase, Serine,Endopeptidases, Serine
D012867 Skin The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.
D015230 Prostaglandin D2 The principal cyclooxygenase metabolite of arachidonic acid. It is released upon activation of mast cells and is also synthesized by alveolar macrophages. Among its many biological actions, the most important are its bronchoconstrictor, platelet-activating-factor-inhibitory, and cytotoxic effects. 11-Dehydroprostaglandin F2alpha,PGD2,11-Dehydroprostaglandin F2 alpha,11 Dehydroprostaglandin F2 alpha,11 Dehydroprostaglandin F2alpha,D2, Prostaglandin,F2 alpha, 11-Dehydroprostaglandin,F2alpha, 11-Dehydroprostaglandin,alpha, 11-Dehydroprostaglandin F2
D016207 Cytokines Non-antibody proteins secreted by inflammatory leukocytes and some non-leukocytic cells, that act as intercellular mediators. They differ from classical hormones in that they are produced by a number of tissue or cell types rather than by specialized glands. They generally act locally in a paracrine or autocrine rather than endocrine manner. Cytokine
D053802 Tryptases A family of neutral serine proteases with TRYPSIN-like activity. Tryptases are primarily found in the SECRETORY GRANULES of MAST CELLS and are released during mast cell degranulation. Tryptase,beta-Tryptases,Mast Cell Tryptase,Skin Tryptase,alpha-Tryptase,alpha-Tryptases,beta-Tryptase,delta-Tryptase,delta-Tryptases,gamma-Tryptase,gamma-Tryptases,Tryptase, Skin,alpha Tryptase,alpha Tryptases,beta Tryptase,beta Tryptases,delta Tryptase,delta Tryptases,gamma Tryptase,gamma Tryptases

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