previous studies have established that incubation of low density lipoprotein ( ldl ) with cultured endothelial cells ( ec ) converts it to a new form ( ec-modified ldl ) that is now recognized by a specific receptor on macrophages ( the acetyl ldl receptor ) and is taken up and degraded 3-10 times more rapidly than native ldl ( biological modification ) .
C0014257
endothelial
C0225336
ec