Molecular counting of low-density lipoprotein particles as individuals and small clusters on cell surfaces.
Authors:Gross D, Webb WW
Journal:Biophys J
PubMed ID:3719072
'We employ the intensely fluorescent analogue diI-LDL (Barak, L. S., and W. W. Webb, 1981, J. Cell Biol. 90:595-604) as a counting marker to determine the numbers of LDL-receptor complexes that are contained in clusters on the surfaces of human fibroblasts and human epidermoid carcinoma cells. The application of quantitative ... More
Receptor-mediated transcytosis of transferrin across the blood-brain barrier.
Authors:Fishman JB, Rubin JB, Handrahan JV, Connor JR, Fine RE
Journal:J Neurosci Res
PubMed ID:3694713
'The perfusion of rat brain with 125I-transferrin resulted in a receptor-mediated uptake of transferrin into the endothelium of the blood-brain barrier followed by its detection in the brain. During a pulse-chase experiment, 125I-transferrin accumulated in the endothelial cells during the pulse, with a decrease of this intraendothelial radioactivity during the ... More
Uptake and trafficking of liposomes to the endoplasmic reticulum.
Authors:Pollock S, Antrobus R, Newton L, Kampa B, Rossa J, Latham S, Nichita NB, Dwek RA, Zitzmann N,
Journal:FASEB J
PubMed ID:20097877
'Liposomes are vesicular structures consisting of an aqueous core surrounded by a lipid bilayer. Apart from the cytosol and lysosomes, no other intracellular compartment has been successfully targeted using liposomal delivery. Here, we report the development of liposomes capable of specific targeting to the endoplasmic reticulum (ER) and associated membranes. ... More
Role of lysine residues of plasma lipoproteins in high affinity binding to cell surface receptors on human fibroblasts.
Authors:Weisgraber KH, Innerarity TL, Mahley RW
Journal:J Biol Chem
PubMed ID:214439
'The low density lipoprotein (LDL) cell surface receptors on human fibroblasts grown in culture bind specific plasma lipoproteins, initiating a series of events which regulate intracellular cholesterol metabolism. Specificity for the interaction with the receptors resides with the protein moieties of the lipoproteins, specifically with the B and E apoproteins ... More