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Fatty acid composition in native and cultured human endothelial cells

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Summary

Endothelial cells from human umbilical veins were isolated by collagenase treatment. Cells were cultured in the presence of either 20% fetal bovine serum (FBS) or 20% human serum (HS). At confluency, endothelial cell lipids were labeled with tracer concentrations of tritiated arachidonic acid, then extracted and separated into lipid subclasses by thin layer chromatography. The fatty acid composition of each lipid class was determined by glass capillary gas-liquid chromatography analysis and compared to that of cells freshly isolated from the cord (NC cells). The fatty acid compositions differed only in phospholipids. Polyunsaturated fatty acids (PFAs), arachidonic, and linoleic acids were depleted in FBS cell phospholipids and replaced by both stearic and oleic acids. No significant difference could be observed between NC cell and HS cell phospholipids. We conclude that PFAs might be decreased in FBS cells because of the relative paucity of PFAs in FBS as compared to HS. It seems therefore more convenient to cultivate endothelial cells in the presence of HS, especially in respect to their phospholipid content of arachidonic acid, which is the physiological reservoir for prostacyclin synthesis.

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Authors and Affiliations

  1. Institut Pasteur, Laboratoire d'Hémobiologie, Faculté de Médecine Alexis Carrel, INSERM U63, 69372, Lyon Cedex 2, France

    M. Lagarde, B. Sicard, M. Guichardant, O. Felisi & M. Dechavanne

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  1. M. Lagarde
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  2. B. Sicard
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  3. M. Guichardant
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  4. O. Felisi
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  5. M. Dechavanne
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Additional information

This work was supported by a grant from the Délégation Générale à la Recherche Scientifique et Technique, Paris, France (79.7.0091).

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Lagarde, M., Sicard, B., Guichardant, M. et al. Fatty acid composition in native and cultured human endothelial cells. In Vitro 20, 33–37 (1984). https://doi.org/10.1007/BF02633329

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  • DOI: https://doi.org/10.1007/BF02633329

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