Colestolone

**Semantic type:** Pharmacologic Substance

**Definition:** An antilipidemic agent based on the carbon skeleton of cholesterol. Colestolone targets sterol regulatory element binding protein (SREBP) which reduces the transcription of the 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCR) gene, the rate-limiting enzyme in the sterol pathway. Colestolone is also metabolized by cells into polar sterols, which are known to inhibit HMGCR enzymatic activity.

**Synonyms:** - COLESTOLONE