title: An improved method for anti-glycolipid antibody and glycolipid determination by an enzyme-linked immunosorbent assay using polystyrene beads.
abstract: Sensitive determination of anti-glycolipid antibody titer and glycolipid content by an enzyme-linked immunosorbent assay (ELISA) using polystyrene beads was achieved. Glycolipid-coated polystyrene beads were used as the immobilized antigen. As antigen glycolipids, gangliotetraosylceramide (GA1), gangliotriosylceramide (GA2) and neolactotetraosylceramide (paragloboside) were used. Concentrations of 1-500 ng glycolipid in liposomes/ml or 0.1-100 micrograms glycolipid/ml could be used for the glycolipid determination. Glycolipid determination by the competitive inhibition method was not influenced by the presence of other glycolipids. A great advantage of this method is that the glycolipid-coated beads can be used repeatedly by washing the used beads with 3M NaSCN solution. The method was applied to the detection of auto-antibody against GA1 in ascitic fluid from cancer patients.
mesh_terms: D000918:Antibody Specificity; D001202:Ascitic Fluid / Q000378:metabolism; D001323:Autoantibodies / Q000032:analysis*; D004797:Enzyme-Linked Immunosorbent Assay; D006017:Glycolipids / Q000032:analysis* / Q000276:immunology; D006801:Humans; D009369:Neoplasms / Q000378:metabolism; D011137:Polystyrenes
chemical_list: D001323:Autoantibodies; D006017:Glycolipids; D011137:Polystyrenes