Cholesterol uptake of isolated rat hepatocytes is accelerated by several kinds of phosphatidylcholine

Yoichi Nagamura; Kunio Sasaki; Madoka Ito; Kuniaki Saito; Naomichi Ogitsu; Isao Ishiguro

doi:10.1016/0014-5793(86)81443-0

Cholesterol uptake of isolated rat hepatocytes is accelerated by several kinds of phosphatidylcholine

Yoichi Nagamura, Kunio Sasaki, Madoka Ito, Kuniaki Saito, Naomichi Ogitsu, Isao Ishiguro

Advanced Diagnostic System Development

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Abstract

Uptake of cholesterol by isolated rat hepatocytes in a serum-free medium was remarkably enchanced by dispersion with several kinds of phosphatidylcholine. Of the various phosphatidylcholines tested, dilinoylphosphatidylcholine had the strongest accelerating effect, while dipalmitoylphosphatidylcholine was the weakest. The abilities to accelerate cholesterol uptake were in proportion to the content of unsaturated fatty acid in the phosphatidylcholine used. It was confirmed by electron microscopy that there is no relation between the size of the cholesterol-phosphatidylcholine complex and uptake. These data suggest that recognition of unsaturated fatty acids in phosphatidylcholine by isolated cells enhances uptake of cholesterol. Cholesterol uptake (Isolated rat hepatocyte) Phosphatidylcholine Unsaturated fatty acid Dioleoylphosphatidylcholine Dipalmitoylphosphatidylcholine.

Original language	English
Pages (from-to)	91-94
Number of pages	4
Journal	FEBS Letters
Volume	203
Issue number	1
DOIs	https://doi.org/10.1016/0014-5793(86)81443-0
Publication status	Published - 14-07-1986

All Science Journal Classification (ASJC) codes

Biophysics
Structural Biology
Biochemistry
Molecular Biology
Genetics
Cell Biology

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10.1016/0014-5793(86)81443-0

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abstract = "Uptake of cholesterol by isolated rat hepatocytes in a serum-free medium was remarkably enchanced by dispersion with several kinds of phosphatidylcholine. Of the various phosphatidylcholines tested, dilinoylphosphatidylcholine had the strongest accelerating effect, while dipalmitoylphosphatidylcholine was the weakest. The abilities to accelerate cholesterol uptake were in proportion to the content of unsaturated fatty acid in the phosphatidylcholine used. It was confirmed by electron microscopy that there is no relation between the size of the cholesterol-phosphatidylcholine complex and uptake. These data suggest that recognition of unsaturated fatty acids in phosphatidylcholine by isolated cells enhances uptake of cholesterol. Cholesterol uptake (Isolated rat hepatocyte) Phosphatidylcholine Unsaturated fatty acid Dioleoylphosphatidylcholine Dipalmitoylphosphatidylcholine.",

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T1 - Cholesterol uptake of isolated rat hepatocytes is accelerated by several kinds of phosphatidylcholine

AU - Nagamura, Yoichi

AU - Sasaki, Kunio

AU - Ito, Madoka

AU - Saito, Kuniaki

AU - Ogitsu, Naomichi

AU - Ishiguro, Isao

PY - 1986/7/14

Y1 - 1986/7/14

N2 - Uptake of cholesterol by isolated rat hepatocytes in a serum-free medium was remarkably enchanced by dispersion with several kinds of phosphatidylcholine. Of the various phosphatidylcholines tested, dilinoylphosphatidylcholine had the strongest accelerating effect, while dipalmitoylphosphatidylcholine was the weakest. The abilities to accelerate cholesterol uptake were in proportion to the content of unsaturated fatty acid in the phosphatidylcholine used. It was confirmed by electron microscopy that there is no relation between the size of the cholesterol-phosphatidylcholine complex and uptake. These data suggest that recognition of unsaturated fatty acids in phosphatidylcholine by isolated cells enhances uptake of cholesterol. Cholesterol uptake (Isolated rat hepatocyte) Phosphatidylcholine Unsaturated fatty acid Dioleoylphosphatidylcholine Dipalmitoylphosphatidylcholine.

AB - Uptake of cholesterol by isolated rat hepatocytes in a serum-free medium was remarkably enchanced by dispersion with several kinds of phosphatidylcholine. Of the various phosphatidylcholines tested, dilinoylphosphatidylcholine had the strongest accelerating effect, while dipalmitoylphosphatidylcholine was the weakest. The abilities to accelerate cholesterol uptake were in proportion to the content of unsaturated fatty acid in the phosphatidylcholine used. It was confirmed by electron microscopy that there is no relation between the size of the cholesterol-phosphatidylcholine complex and uptake. These data suggest that recognition of unsaturated fatty acids in phosphatidylcholine by isolated cells enhances uptake of cholesterol. Cholesterol uptake (Isolated rat hepatocyte) Phosphatidylcholine Unsaturated fatty acid Dioleoylphosphatidylcholine Dipalmitoylphosphatidylcholine.

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Cholesterol uptake of isolated rat hepatocytes is accelerated by several kinds of phosphatidylcholine

Abstract

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