Title : Interleukin-1 inhibits Leydig cell steroidogenesis primarily by decreasing 17 alpha-hydroxylase/C17-20 lyase cytochrome P450 expression.

Pub. Date : 1992 Nov

PMID : 1425417






6 Functional Relationships(s)
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1 Addition of IL-1 to macrophage-depleted primary cultures of mouse Leydig cells caused a dose-dependent decrease in cAMP-dependent testosterone production and 17 alpha-hydroxylase/C17-20 lyase (P450c17) mRNA levels. Testosterone interleukin 1 complex Mus musculus
2 Treatment with 8-Br-cAMP plus 0.2 and 2 U/ml IL-1 decreased testosterone production to 63 +/- 14% and 41 +/- 19%, respectively, while 5, 10, and 20 U/ml IL-1 decreased testosterone production to less than 5% that of cells treated with 8-Br-cAMP alone. Testosterone interleukin 1 complex Mus musculus
3 Treatment with 8-Br-cAMP plus 0.2 and 2 U/ml IL-1 decreased testosterone production to 63 +/- 14% and 41 +/- 19%, respectively, while 5, 10, and 20 U/ml IL-1 decreased testosterone production to less than 5% that of cells treated with 8-Br-cAMP alone. Testosterone interleukin 1 complex Mus musculus
4 Treatment with 8-Br-cAMP plus 0.2 and 2 U/ml IL-1 decreased testosterone production to 63 +/- 14% and 41 +/- 19%, respectively, while 5, 10, and 20 U/ml IL-1 decreased testosterone production to less than 5% that of cells treated with 8-Br-cAMP alone. Testosterone interleukin 1 complex Mus musculus
5 Chronic treatment with IL-1 plus 8-Br-cAMP caused a shift in steroid production from testosterone to progesterone, but total steroid production (the sum of testosterone plus progesterone) was unaffected by IL-1 treatment. Testosterone interleukin 1 complex Mus musculus
6 Chronic treatment with IL-1 plus 8-Br-cAMP caused a shift in steroid production from testosterone to progesterone, but total steroid production (the sum of testosterone plus progesterone) was unaffected by IL-1 treatment. Testosterone interleukin 1 complex Mus musculus