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  • Title: Expression of cytochrome P-450 mRNAs in steroidogenesis of adrenocortical adenomas from patients with primary aldosteronism.
    Author: Ogo A, Haji M, Ohashi M, Nawata H.
    Journal: Mol Cell Endocrinol; 1991 Apr; 76(1-3):7-12. PubMed ID: 1820978.
    Abstract:
    We studied the contents of aldosterone and cortisol (F) and the expression of mRNA of cytochrome P-450 for side-chain cleavage (P-450scc), 17 alpha-hydroxylase (P-450c17), 21-hydroxylase (P-450c21) and 11 beta-hydroxylase (P-450c11) in adrenocortical adenomas from three patients with primary aldosteronism. The aldosterone content was significantly higher in adrenocortical adenomas than in normal adrenal glands, while F content in adenomas was similar to the level in normal adrenal glands. The aldosterone-producing adenomas showed a markedly higher level of P-450c11 mRNA, a slightly but not significantly increased level of P-450c21 mRNA and a significantly decreased level of P-450c17 mRNA, compared with those in normal adrenal glands. The expression of P-450scc mRNA in adenomas was similar to the level in normal adrenal glands. These results suggested that the renin-independent overproduction of aldosterone in adrenocortical adenomas from the patients with primary aldosteronism results from increasing expression of the mRNA for P-450c11 and decreasing expression of the mRNA for P-450c17.
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