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Effects of the apolipoprotein E polymorphism on uptake and transfer of cell-derived cholesterol in plasma.

作者信息

Huang Y, von Eckardstein A, Wu S, Assmann G

机构信息

Institut für Arterioskleroseforschung an der Universität Münster, Federal Republic of Germany.

出版信息

J Clin Invest. 1995 Dec;96(6):2693-701. doi: 10.1172/JCI118336.

DOI:10.1172/JCI118336
PMID:8675636
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC185976/
Abstract

The reverse cholesterol transport is initiated by the uptake of cholesterol into minor subfractions of high density lipoproteins (HDL) which contain either apolipoprotein (apo) A-I or apoE as their only apolipoproteins. From these initial acceptors, which are termed prebeta1-LpA-I and gamma-LpE, respectively, cell-derived cholesterol is transferred to LDL via the bulk of HDL termed alpha-LpA-I. In this study we analyzed the effect in plasma of the genetically determined apoE polymorphism on the formation of gamma-LpE, uptake and transfer of cell-derived cholesterol to LDL. Gamma-LpE was immunologically detectable in plasmas of individuals carrying at least one apoE3-allele but not in apoE3-free plasmas. During one minute incubation with [3H]cholesterol-labeled fibroblasts, gamma-LpE of plasmas from apoE3/3 subjects accumulated 7 and 13-fold more radioactivity than the respective fractions in plasmas from apoE2/2- and apoE4/4-subjects, respectively. Totally, 30% less [3H]cholesterol was released into plasmas of apoE2/2 and apoE4/4-individuals as compared with plasmas of apoE3/3-subjects. Moreover, plasmas of apoE3/3 individuals accumulated 50% and 65% more cell-derived [3H]cholesterol in alpha-LpA-I2 than plasmas of apoE4/4 and apoE2/2-subjects, respectively. These results indicate that the apoE-polymorphism is an important determinant of the uptake and transfer of cell-derived cholesterol in plasma.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/2c0f69f85abf/jcinvest00018-0162-d.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/9c099e33115e/jcinvest00018-0161-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/5b3b1ea0d868/jcinvest00018-0161-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/6ef68ec62f00/jcinvest00018-0161-c.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/6466155e0417/jcinvest00018-0161-d.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/f7d9abe36b5e/jcinvest00018-0161-e.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/121e93b79cf2/jcinvest00018-0161-f.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/b16211e16992/jcinvest00018-0162-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/67c5136dd4d8/jcinvest00018-0162-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/c18d63b6a2a3/jcinvest00018-0162-c.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/2c0f69f85abf/jcinvest00018-0162-d.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/9c099e33115e/jcinvest00018-0161-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/5b3b1ea0d868/jcinvest00018-0161-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/6ef68ec62f00/jcinvest00018-0161-c.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/6466155e0417/jcinvest00018-0161-d.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/f7d9abe36b5e/jcinvest00018-0161-e.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/121e93b79cf2/jcinvest00018-0161-f.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/b16211e16992/jcinvest00018-0162-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/67c5136dd4d8/jcinvest00018-0162-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/c18d63b6a2a3/jcinvest00018-0162-c.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a61b/185976/2c0f69f85abf/jcinvest00018-0162-d.jpg

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本文引用的文献

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A simple method for the isolation and purification of total lipides from animal tissues.一种从动物组织中分离和纯化总脂质的简单方法。
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Quantitation of pre beta-HDL-dependent and nonspecific components of the total efflux of cellular cholesterol and phospholipid.细胞胆固醇和磷脂总流出中前β-HDL依赖性和非特异性成分的定量分析。
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Cell-derived unesterified cholesterol cycles between different HDLs and LDL for its effective esterification in plasma.
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Differential Effects of apoE4 and Activation of ABCA1 on Brain and Plasma Lipoproteins.载脂蛋白E4及ATP结合盒转运体A1激活对脑和血浆脂蛋白的不同影响。
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