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  • Title: Effect of the intermediate filament inhibitor IDPN on steroid secretion by frog adrenal glands.
    Author: Feuilloley M, Netchitailo P, Delarue C, Leboulenger F, Benyamina M, Vaudry H.
    Journal: J Steroid Biochem; 1988; 30(1-6):465-7. PubMed ID: 2838700.
    Abstract:
    In order to determine the role of intermediate filaments in adrenal steroidogenesis, we have studied the effect of IDPN (beta-beta'iminodipropionitrile), an intermediate filaments perturbing agent, on corticosteroid secretion by frog interrenal glands in vitro. A 6-h administration of IDPN (10(-3) M) did not affect the spontaneous release of corticosterone and aldosterone. While IDPN did not alter the response of adrenal fragments to ACTH, the drug caused a marked decrease in angiotensin II-induced stimulation of corticosterone and aldosterone production. These results indicate that, in contrast to microfilaments, which play an important role in spontaneous steroidogenesis, intermediate filaments are not required for basal corticosteroid secretion but are involved in the mechanism of action of angiotensin in frog adrenocortical cells.
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