Immunomagnetic separation as a final purification step of liver endothelial cells.
We describe a fast and reproducible method that can be used as a final step in obtaining pure populations of liver endothelial cells. This method employs endothelial cell specific lectin covalently bound to magnetic polystyrene beads (Dynabeads). Evonymus europaeus agglutinin (EEA)-coated Dynabeads were used to purify monkey liver endothelium from Percoll gradient separated nonparenchymal cells. EEA-coated beads were also successfully used to purify monkey aortic endothelial cells. The endothelial cells grew to confluence as a cobblestonelike monolayer, expressed Factor VIII related antigen, and incorporated acetylated-low density lipoprotein. The magnetic beads seemed not to modify the normal properties of the isolated endothelium, thus facilitating their use in experimental studies. This immunomagnetic separation technique may be applicable for purification of endothelial cells from a wide variety of tissue sources.
Division of Cancer Etiology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892.
D E
DE
Gomez
J L
JL
Hartzler
R H
RH
Corbitt
A M
AM
Nason
U P
UP
Thorgeirsson
D000818:Animals; D023181:Antimicrobial Cationic Peptides; D002469:Cell Separation / Q000379:methods*; D002478:Cells, Cultured; D004727:Endothelium / Q000166:cytology / Q000378:metabolism; D037102:Lectins; D008077:Lipoproteins, LDL / Q000378:metabolism; D008099:Liver / Q000166:cytology* / Q000378:metabolism; D008253:Macaca mulatta; D007703:Peptidyl-Dipeptidase A / Q000378:metabolism; D037121:Plant Lectins
D023181:Antimicrobial Cationic Peptides; C047161:Evonymous europa lectin; D037102:Lectins; D008077:Lipoproteins, LDL; D037121:Plant Lectins; C032629:acetyl-LDL; D007703:Peptidyl-Dipeptidase A