Lipid droplets, perilipins and cytokeratins--unravelled liaisons in epithelium-derived cells.
Lipid droplets (LDs) are spherical accumulations of apolar lipids and other hydrophobic substances and are generally surrounded by a thin cortical layer of specific amphiphilic proteins (APs).These APs segregate the LDs from the mostly polar components of the cytoplasm.We have studied LDs in epithelium-derived cell cultures and in particular charac