Glycolipids and fatty acids of two dog kidney cell lines
- PMID: 426774
- PMCID: PMC1186370
- DOI: 10.1042/bj1770311
Glycolipids and fatty acids of two dog kidney cell lines
Abstract
Glycolipid and fatty acid compositions were studied in whole cells and plasma membranes from two dog kidney cell lines (Madin-Darby and SV40-transformed cells) grown in monolayer and suspension cultures. Glycolipids, which account for 5% or less of the total lipids in dog kidney cells, were substantially increased in plasma membranes relative to whole cells. Sialoglycolipids more complex than a Tay-Sachs-like ganglioside were not found in any whole-cell or plasma-membrane preparation of this study. Dog kidney cells transformed by SV40 virus contained primarily a less complex sialoglycolipid, haematoside. Neutral glycolipids comprised 26-43% of the total glycolipid content in Madin-Darby preparations, whereas in transformed cells and membranes neutral glycolipids constituted only 1-22% of the total glycolipid content. Ceramide trihexoside was found in Madin-Darby cultures, but not in transformed cultures. The values for short-chain fatty acids from neutral glycolipids and for saturated fatty acids were generally higher than the values for these fatty acids in calf serum.
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