Hepatocyte membrane lipids and proteins

The hepatocyte membrane is a complex assembly of phospholipids, cholesterol, and specialized proteins that defines the structural and functional boundary of liver cells (Arias et al., The Liver: Biology and Pathobiology, 2020). It is organized into distinct domains—sinusoidal, canalicular, and lateral—each facilitating specific processes such as nutrient uptake, bile secretion, and cell-cell communication (PubMed, PMID: 31535180). In diseases like viral hepatitis, alcoholic liver disease, and nonalcoholic fatty liver disease (NAFLD), the membrane's lipid composition and protein integrity are often disrupted, leading to cell death or dysfunction. Therapeutic strategies involving this target range from non-specific membrane stabilizers like essential phospholipids and silymarin to highly specific inhibitors of membrane proteins (StatPearls, Silymarin, 2023). For example, bulevirtide targets the NTCP protein to prevent viral entry, while ezetimibe targets NPC1L1 to modulate cholesterol transport (PubMed, PMID: 33035475). Because the term encompasses the entire surface of the hepatocyte, it is considered a broad cellular component rather than a single discrete therapeutic target.

Other names

Hepatocyte plasma membraneLiver cell surface componentsHepatocyte membrane components

Stabilization of the lipid bilayer, competitive inhibition of membrane-bound transporters (e.g., NTCP, NPC1L1), and modulation of membrane fluidity and permeability to protect against toxic insults.