Title : Inhibitory effects of interleukin-1 on luteinizing hormone-stimulated adenosine 3',5'-monophosphate accumulation by cultured porcine granulosa cells.

Pub. Date : 1989 Jul

PMID : 2544398






6 Functional Relationships(s)
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1 Inhibitory effects of interleukin-1 on luteinizing hormone-stimulated adenosine 3",5"-monophosphate accumulation by cultured porcine granulosa cells. Cyclic AMP interleukin 1 alpha Homo sapiens
2 Pretreatment of the cells for 48 h with IL-1 reduced intra- and extracellular cAMP accumulation in response to LH by 73% and 83%, respectively. Cyclic AMP interleukin 1 alpha Homo sapiens
3 The lowest concentration of IL-1 used (0.5 pg/ml), in contrast, showed a tendency to stimulate LH-induced cAMP accumulation. Cyclic AMP interleukin 1 alpha Homo sapiens
4 IL-1 also significantly reduced intra- and extracellular cAMP accumulation by the cells in response to forskolin (50, 150 microM) by 28-46%, indicating that IL-1 can directly inhibit adenylate cyclase activity. Cyclic AMP interleukin 1 alpha Homo sapiens
5 IL-1 also significantly reduced intra- and extracellular cAMP accumulation by the cells in response to forskolin (50, 150 microM) by 28-46%, indicating that IL-1 can directly inhibit adenylate cyclase activity. Cyclic AMP interleukin 1 alpha Homo sapiens
6 These results indicate that the inhibitory effect of IL-1 on LH-stimulated progesterone secretion is due to its actions at at least two different sites along the LH-stimulated, cAMP-mediated, progesterone biosynthetic pathway, the LH receptor level and adenylate cyclase systems. Cyclic AMP interleukin 1 alpha Homo sapiens