Abstract
On the premise that the differential effects of glucocorticoids on various aspects of the immune response may be mediated by differences in the glucocorticoid receptors in the effector cells, subpopulations of human peripheral blood lymphocytes were examined for these receptors as well as for glucocorticoid responsiveness. Purified T and non-T lymphocytes, when studied by a sensitive whole cell assay technique, contained equivalent amounts of specific glucocorticoid receptor, which, by binding affinity and specificity measurements, were indistinguishable from each other. Furthermore, under in vitro incubation conditions, macromolecular synthesis in both of these cell populations was inhibited by glucocorticoid at concentrations which saturated the receptor sites. It is concluded that the putative differential effects of glucocorticoids on T and non-T lymphocyte-associated functions are probably not mediated by differences in the glucocorticoid receptors in these cell populations.
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