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Relative Immunosuppressive Potency of Therapeutic Corticosteroids Measured by Whole Blood Lymphocyte Proliferation by Donald E. Mager; Nasir Moledina; William J. Jusko is a Chemistry article available to read on EtoBox.

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The in vitro immunosuppressive potency of several therapeutic corticosteroids was investigated using a whole-blood lymphocyte proliferation assay. The selected steroids included beclomethasone dipropionate (BDP), betamethasone (BET), budesonide (BUD), dexamethasone (DEX), flunisolide (FLU), fluticasone propionate (FTP), hydrocortisone (HC), methylprednisolone (MPL), prednisolone (PNL), and triamcinolone acetonide (TAA). The ability of phytohemagglutinin to stimulate lymphocytes in whole blood samples obtained from six drug-free male volunteers was tested against drug concentrations ranging from approximately 0.2 to 2000 nM. Data analysis was conducted employing an inhibitory Hill function and nonlinear regression analysis in ADAPT II. The order of drug concentrations producing 50% inhibition (IC(50)) from highest to lowest was HC > PNL > MPL > BDP > BET > DEX > TAA > FLU > BUD > FTP. These IC(50) values are an inverse measure of drug potency, with FTP representing the most potent corticosteroid examined. A linear correlation was found between the log-transformed 1/IC(50) values and the log of the relative receptor affinity (RRA) values obtained from the literature (r(2) = 0.95). Th

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Author

Donald E. Mager; Nasir Moledina; William J. Jusko

Publisher

John Wiley and Sons; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0022-3549)

Published

2003

Language

EN

Field

Chemistry (Physical Sciences)