under certain conditions endothelial cells have been shown to produce powerful vasodilators , like endothelium-derived relaxing factor ( edrf ) and prostacyclin ( gpi2 ) , and vasoconstrictors like endothelium-derived constricting factor ( edcf ) and endothelin ( et ) ( griffith et al. , 1988 ; vanhoutte & katusic , 1988 ) .
C0225336
endothelial cells
C0014257
endothelium