Abstract：
:The addition of arachidonic acid (20:4), but not other fatty acids, including the structurally similar eicosapentaenoic acid (20:5), induced specific morphological changes in cultured endothelial cells derived from bovine aorta and pulmonary artery. Cells exhibited a time- and dose-dependent change from their normal, epithelioid morphology to become elongated, polygonal, and spindle-shaped. Cells isolated from aorta appeared more sensitive to these changes than those from pulmonary artery. The effect was observed as early as 12 h after exposure to 20:4, required 48 h for maximal expression, and could be reversed in 2-5 h after change to normal media. The morphological alteration was not observed in cells treated with leukotrienes or PGE2. When cells were pretreated with ibuprofen, aspirin, or indomethacin to block prostaglandin synthesis and then exposed to 20:4, the dose-response effect was shifted to the left. This increased sensitivity to 20:4 suggests either a direct effect of 20:4 on cell morphology or an indirect effect due to metabolites of 20:4 which are not dependent on the cyclooxygenase pathway.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Sandra A,Bar RS,Dolash S,Marshall SJ,Kaduce TL,Spector AAdoi
10.1016/0014-4827(85)90471-9subject
Has Abstractpub_date
1985-06-01 00:00:00pages
484-92issue
2eissn
0014-4827issn
1090-2422journal_volume
158pub_type
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