Phosphatidylcholine micelles (PC micelles)

Phosphatidylcholine micelles are supramolecular aggregates formed by the self-assembly of phosphatidylcholine, a primary phospholipid found in cell membranes and bile. In biological systems, these micelles are critical for the solubilization of cholesterol and the emulsification of dietary fats within the biliary tract and intestines, facilitating their digestion and absorption (Source: PubChem, CID 5460034). In pharmaceutical science, they serve as versatile drug delivery vehicles, or nanocarriers, designed to encapsulate and transport hydrophobic drugs, thereby improving their solubility and bioavailability (Source: PubMed, PMID 28251298). While they are used therapeutically in "injection lipolysis" to reduce localized fat deposits, they act as physical emulsifiers rather than interacting with specific biological targets like receptors or enzymes (Source: StatPearls, "Lipolysis"). Consequently, they are not classified as therapeutic targets but rather as formulation components or active agents in specific clinical contexts. Their safety profile is generally favorable, though high concentrations or specific combinations (e.g., with deoxycholate) can lead to localized tissue irritation or necrosis.

Other names

Lecithin micellesPhospholipid micelles1,2-diacyl-sn-glycero-3-phosphocholine aggregates

Emulsification and solubilization of hydrophobic substances