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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 61 (1983), S. 1053-1062 
    ISSN: 1432-1440
    Keywords: Immunosuppression ; Delayed-type hypersensitivity ; Cell-mediated cytolysis ; T-helper lymphocytes ; Graft-versus-host disease ; Clinical transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The recently discovered fungal metabolite cyclosporin A (CsA) is a potent immunosuppressant that is effective in preventing transplantation rejection due to allografts and even xenografts. Due to its influence on the biological activity of T-helper lymphocytes CsA's mechanism of action includes inhibition of cell-mediated cytolysis and delayed-type hypersensitivity (DTH) reaction. In addition to studies of the molecular mechanism of action, data on the pharmacokinetics of CsA are given. CsA does not cause anti-mitotic and/or cytotoxic effects. The side effects of the agent are relatively mild and appear to be reversible. CsA has been successfully used clinically in renal, bonemarrow, heart, heart-lung, liver, and pancreas transplantation. The application of the compound in organ transplantation appears to be superior to conventional immunosuppressive therapy.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 58 (1980), S. 739-742 
    ISSN: 1432-1440
    Keywords: Lymphokine ; Makrophagen-Migrations-Hemmfaktor ; Immunreaktion vom verzögerten Typ ; Lymphokines ; Macrophage migration inhibitory factor ; Delayed-type hypersensitivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The new antilymphocytic agent Cyclosporin A was found to inhibit the production and/or secretion of migration inhibitory factor (MIF) in human lymphocytes stimulated by Concanavalin A. Preincubation for one hour with the compound, followed by 8 hr restoration period of the cells in absence of the drug, resulted in moderate decrease in MIF synthesis and/or release. Cell viability was not affected. The agent was shown not to interfere with MIF action on the macrophage. We conclude that the molecular mechanism of action of Cyclosporin A is based, at least partially, on a blockade of synthesis and/or secretion of lymphokines from immunocompetent cells.
    Notes: Zusammenfassung Die neue antilymphozytisch wirksame Substanz Cyclosporin A blockierte die Produktion und/oder Sekretion des Makrophagen-Migrations-Hemmfaktors (MIF) aus Concanavalin A-stimulierten humanen Lymphozyten. Eine einstündige Vorinkubation mit der Substanz, gefolgt von einer achtstündigen Inkubation der Zellen in Abwesenheit der Substanz, führte zu einer deutlichen Reduktion der MIF-Synthese, bzw. der Freisetzung von MIF. Die Vitalität der Zellen war nicht beeinträchtigt. Cyclosporin A interferierte nicht mit dem MIF-Effekt am Makrophagen. Wir schließen daraus, daß der molekulare Wirkungsmechanismus von Cyclosporin A, zumindest teilweise, auf der Blockierung der Synthese und/oder Freisetzung von Lymphokinen aus immunkompetenten Zellen beruht.
    Type of Medium: Electronic Resource
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