Effects of cyclosporin A on expression of IL-2 and IL-2 receptors in normal and multiple sclerosis patients.

The effects of the immunosuppressant Cyclosporin A (CsA) on T cell activation in vivo and in vitro were examined using the monoclonal antibody, anti-Tac, for interleukin 2 (IL-2) receptors and 3.9C2, for a peptide fragment of human IL-2. Peripheral blood lymphocytes (PBL) were stimulated with PHA in...

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Bibliographic Details
Main Authors: Calder, V, Bellamy, A, Owen, S, Lewis, C, Rudge, P, Davison, A, Feldmann, M
Format: Journal article
Language:English
Published: 1987
Description
Summary:The effects of the immunosuppressant Cyclosporin A (CsA) on T cell activation in vivo and in vitro were examined using the monoclonal antibody, anti-Tac, for interleukin 2 (IL-2) receptors and 3.9C2, for a peptide fragment of human IL-2. Peripheral blood lymphocytes (PBL) were stimulated with PHA in the presence of CsA. The expression of IL-2 receptors and production of IL-2 were reduced. PBL from CsA-treated MS patients had significantly lower proportions of Tac+ cells compared with untreated patients. This inhibition was not reflected in the CSF lymphocyte populations from CsA-treated patients and indicates the urgent need for an immunosuppressant drug which can enter the CNS in sufficient concentrations to inhibit local T cell activation.