Cytochrome P450 enzyme involved in steroidogenesis (CYP (with specific isoforms such as CYP11A1, CYP17A1, CYP19A1 commonly referenced))

Cytochrome P450 enzymes involved in steroidogenesis are a subset of the large cytochrome P450 superfamily responsible for catalyzing key oxidative reactions required for converting cholesterol into biologically active steroid hormones. These heme-containing monooxygenases are primarily expressed in endocrine tissues like the adrenal glands and gonads. They mediate multiple steps including side-chain cleavage and hydroxylations essential for producing glucocorticoids, mineralocorticoids, estrogens, and androgens. Dysregulation or genetic defects affecting these enzymes can result in various endocrine diseases or contribute to hormone-dependent cancers. Pharmacological inhibition is a validated therapeutic strategy for conditions where suppression of endogenous steroids is beneficial.

Other names

Cytochrome P450 steroidogenic enzymeSteroidogenic cytochrome P450Steroidogenic CYPSteroid hormone-synthesizing cytochrome P450

Drugs targeting these enzymes typically act by inhibiting the enzymatic conversion steps in the biosynthesis of steroid hormones. For example, - Inhibition of androgen or estrogen synthesis by blocking key hydroxylation/lyase/aromatization steps catalyzed by specific CYPs. - Competitive inhibition at the heme active site.