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Inhibition of allergen-induced histamine release from human basophils by cyclosporine A and FK-506. 1997

W R Sperr, and H Agis, and H Semper, and R Valenta, and M Susani, and M Sperr, and M Willheim, and O Scheiner, and E Liehl, and K Lechner, and P Valent
Department of Internal Medicine I, University of Vienna, Austria.

A number of structurally different allergens trigger the release of mediators from basophils by cross-linking of IgE receptors. In this study, we analyzed the effects of cyclosporine A (CSA) and FK-506 on allergen-induced histamine release in human blood basophils obtained from birch- or grass-pollen-allergic donors (n = 12). Preincubation of basophils with CSA (0.003-3 microg/ml) or FK-506 (0.003-3 microg/ml) led to inhibition of histamine release induced by purified recombinant tree pollen allergens (r Bet v 1, r Bet v 2) and timothy grass pollen allergens (r Ph1 p 1, r Ph1 p 2, r Ph1 p 5). The effects of CSA and FK-506 were dose dependent, with IC50 values ranging between 0.03 and 0.3 microg/ml for both CSA and FK-506. Cyclosporine H, an inactive CSA analog, did not show any effect on allergen-induced histamine secretion. IgE dependency of the reaction was demonstrated in passive transfer experiments using highly enriched human basophils (> 95% pure) and specific IgE from a patient allergic to Bet v 2. In summary, our data show that CSA and FK-506 inhibit recombinant-allergen-induced histamine release from peripheral blood basophils in allergic donors.

UI MeSH Term Description Entries
D007073 Immunoglobulin E An immunoglobulin associated with MAST CELLS. Overexpression has been associated with allergic hypersensitivity (HYPERSENSITIVITY, IMMEDIATE). IgE
D007116 Immunization, Passive Transfer of immunity from immunized to non-immune host by administration of serum antibodies, or transplantation of lymphocytes (ADOPTIVE TRANSFER). Convalescent Plasma Therapy,Immunoglobulin Therapy,Immunotherapy, Passive,Normal Serum Globulin Therapy,Passive Antibody Transfer,Passive Transfer of Immunity,Serotherapy,Passive Immunotherapy,Therapy, Immunoglobulin,Antibody Transfer, Passive,Passive Immunization,Therapy, Convalescent Plasma,Transfer, Passive Antibody
D007166 Immunosuppressive Agents Agents that suppress immune function by one of several mechanisms of action. Classical cytotoxic immunosuppressants act by inhibiting DNA synthesis. Others may act through activation of T-CELLS or by inhibiting the activation of HELPER CELLS. While immunosuppression has been brought about in the past primarily to prevent rejection of transplanted organs, new applications involving mediation of the effects of INTERLEUKINS and other CYTOKINES are emerging. Immunosuppressant,Immunosuppressive Agent,Immunosuppressants,Agent, Immunosuppressive,Agents, Immunosuppressive
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011058 Pollen The fertilizing element of plants that contains the male GAMETOPHYTES. Male Gametes, Plant,Male Gametophytes,Microspores, Plant,Plant Microspores,Pollen Grains,Gamete, Plant Male,Gametes, Plant Male,Gametophyte, Male,Gametophytes, Male,Grain, Pollen,Grains, Pollen,Male Gamete, Plant,Male Gametophyte,Microspore, Plant,Plant Male Gamete,Plant Male Gametes,Plant Microspore,Pollen Grain
D003233 Conjunctivitis, Allergic Conjunctivitis due to hypersensitivity to various allergens. Allergic Conjunctivitis,Conjunctivitis, Atopic,Conjunctivitis, Giant Papillary,Conjunctivitis, Vernal,Keratoconjunctivitis, Vernal,Allergic Conjunctivitides,Atopic Conjunctivitides,Atopic Conjunctivitis,Conjunctivitides, Allergic,Conjunctivitides, Atopic,Conjunctivitides, Giant Papillary,Conjunctivitides, Vernal,Giant Papillary Conjunctivitides,Giant Papillary Conjunctivitis,Keratoconjunctivitides, Vernal,Papillary Conjunctivitides, Giant,Papillary Conjunctivitis, Giant,Vernal Conjunctivitides,Vernal Conjunctivitis,Vernal Keratoconjunctivitides,Vernal Keratoconjunctivitis
D005260 Female Females
D006255 Rhinitis, Allergic, Seasonal Allergic rhinitis that occurs at the same time every year. It is characterized by acute CONJUNCTIVITIS with lacrimation and ITCHING, and regarded as an allergic condition triggered by specific ALLERGENS. Hay Fever,Pollen Allergy,Pollinosis,Seasonal Allergic Rhinitis,Hayfever,Allergic Rhinitides, Seasonal,Allergic Rhinitis, Seasonal,Allergies, Pollen,Allergy, Pollen,Fever, Hay,Pollen Allergies,Pollinoses,Rhinitides, Seasonal Allergic,Rhinitis, Seasonal Allergic,Seasonal Allergic Rhinitides
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

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