Enhanced Effects of Prostaglandin E1 and Dibutyryl Cyclic AMP upon Human Lymphocytes in the Presence of Cortisol

AUTOR(ES)

Mendelsohn, John

RESUMO

The combined effects of cortisol and agents acting through a cyclic AMP-mediated mechanism have been studied in cultures of highly purified human peripheral lymphocytes. Incubation with prostaglandin E1 (PGE1), dibutyryl cyclic AMP, or cortisol results in a concentration-dependent inhibition of [3H]-thymidine incorporation by both unstimulated and phytohemagglutinin (PHA)-stimulated lymphocytes, and PHA-induced morphologic transformation is prevented. When cortisol and PGE1 (or dibutyryl cyclic AMP) are added together to lymphocyte cultures, enhanced inhibitory effects are observed.

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