the recovery of large amounts of neutral cholesteryl esterase activity in the supernatant of collagenase-digested heart tissue , obtained during the isolation of myocytes , which is also markedly enriched in activities of two endothelial marker enzymes ( 5'-nucleotidase and angiotensine-converting enzyme ) may indicate the predominant contribution of neutral cholesteryl esterase activity from coronary endothelial cells to this activity detectable in ventricular homogenates .
C0014257
endothelial
C0225336
endothelial cells