in order to study the signal transduction mechanism of human endothelial cells ( ec ) , the regulation of superoxide anion ( o2- ) release in ec has been investigated using the calcium ionophore a23187 and phorbol myristate acetate ( pma ) , a potential activator of the ca2+ activated , phospholipid-dependent protein kinase , designated `` '' protein kinase c . '' ''
C0014257
endothelial
C0225336
ec