Analysis of the suppression of IL-1 <i>alpha</i> and IL-1 <i>beta</i> production in human peripheral blood mononuclear adherent cells by a glucocorticoid hormone.
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TL;DR
The data suggest that the suppression of IL-1 activity by glucocorticoids is consistently associated with decreased levels ofIL-1 proteins and mRNA expression and therefore presumably regulated at the transcriptional level.
Abstract
The suppression of IL-1 production in human adherent PBMC by a glucocorticoid hormone was studied. From 10(-5) to 10(-8) M glucocorticoid hormone (prednisolone) inhibited both IL-1 alpha and IL-1 beta production by LPS-stimulated adherent human PBMC in a dose-dependent fashion, as assayed by Western blotting of cell-associated IL-1 and a thymocyte comitogenic bioassay. IL-1 alpha and -beta mRNA levels were concomitantly suppressed by glucocorticoid treatment, as determined by Northern blotting analysis. These data suggest that the suppression of IL-1 activity by glucocorticoids is consistently associated with decreased levels of IL-1 proteins and mRNA expression and therefore presumably regulated at the transcriptional level.