Lipid membranes and lipoproteins

Lipid membranes and lipoproteins are essential macromolecular structures that serve as both physical barriers and transport vehicles within biological systems. Lipid membranes, characterized by their phospholipid bilayer architecture, are vital for maintaining cellular integrity, regulating the passage of molecules, and hosting signaling complexes [1]. Lipoproteins are specialized particles composed of lipids and apolipoproteins that facilitate the systemic transport of cholesterol and triglycerides, playing a central role in energy homeostasis [2]. Therapeutically, lipid membranes are targeted by specific classes of antimicrobials, such as polyenes and lipopeptides, which disrupt membrane stability to induce pathogen cell death [3]. Lipoproteins are the primary focus of cardiovascular risk management, where pharmacological interventions aim to lower atherogenic particles like low-density lipoprotein (LDL) to prevent plaque formation [4]. Because these entities are structural aggregates rather than single proteins, they represent a unique class of therapeutic targets where physical chemistry and metabolic flux are the primary drivers of drug action [5].

Other names

Biological membranesPlasma membranesLipoprotein particlesLipid bilayersPhospholipid bilayersChylomicronsVery-low-density lipoproteinsLow-density lipoproteinsHigh-density lipoproteins

Direct membrane disruption, pore formation, sequestration of lipids, and modulation of lipoprotein clearance.