Endogenous steroid hormone synthesis

Endogenous steroid hormone synthesis" refers to the **entire biochemical process by which cholesterol is converted into various biologically active steroid hormones** within the body. This process occurs primarily in endocrine glands such as the adrenal cortex and gonads and involves a series of tightly regulated enzymatic steps. The first committed step is catalyzed by cytochrome P450scc (CYP11A1), converting cholesterol to pregnenolone. Pregnenolone serves as a precursor for all major classes of steroids—glucocorticoids, mineralocorticoids, androgens, estrogens—and their further conversion depends on tissue-specific expression of additional enzymes like CYP17A1 and aromatase[1][2][7]. Regulation occurs via hormonal signals such as ACTH or LH and feedback mechanisms involving end products like cortisol or sex steroids[2][4]. Disruption in this pathway can lead to various diseases including endocrine disorders and certain cancers. **Note:** "Endogenous steroid hormone synthesis" is not itself a molecular target but rather describes a complex metabolic pathway involving multiple enzyme targets. For structured data purposes, it should be mapped to specific enzymes within this pathway such as "Cytochrome P450 side-chain cleavage enzyme" (CYP11A1), "17α-hydroxylase/17,20 lyase" (CYP17A1), or "aromatase" when referring to drug targeting or biomarker selection[7].

Other names

SteroidogenesisSteroid hormone biosynthesisSteroid hormone synthesis pathway

Enzyme inhibition in the biosynthetic pathway[2]