Comparison of tissue-cultured bovine endothelial cells from aorta and sphenous vein

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Abstract
Endothelial cells were harvested from bovine aorta and saphenous vein with collagenase and cultured in McCoy's 5a medium (modified GIBCO) supplemented with 10% fetal bovine serum. The cells were subcultured through 17 passages over 4 to 5 months. The growth properties in culture of the two cell types were compared. Morphological comparisons included phase microscopy and scanning and transmission electron microscopy. Comparisons with cultured aortic smooth-muscle cells were made using phase and scanning electron microscopy. No differences were found between cultured endothelial cells from aorta and saphenous vein. Differences in growth patterns in culture clearly distinguished both endothelial cell types from smooth-muscle cells. The presence of Weibel-Palade bodies identified the cells from both sources as endothelial.