文章基本信息

标题：Hepatic lipase treatment of chylomicron remnants increases exposure of apolipoprotein E.
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作者：D L Brasaemle ; K Cornely-Moss ; A Bensadoun 等
期刊名称：JLR Papers In Press
印刷版ISSN：0022-2275
电子版ISSN：1539-7262
出版年度：1993
卷号：34
期号：3
页码：455-465
语种：English
出版社：American Society for Biochemistry and Molecular Biology
摘要：The consequences of hepatic lipase treatment of chylomicron remnants were studied. Rats were fed corn oil to induce production and secretion of chylomicrons and were then injected with polyclonal antiserum raised against hepatic lipase to specifically and quantitatively inhibit hepatic lipase activity in vivo. A fraction enriched in chylomicron remnants was isolated from rat plasma by a brief centrifugation step that preferentially isolates triglyceride-rich apolipoprotein (apo) B-48-containing lipoproteins. The chylomicron remnants were then treated with hepatic lipase in vitro, or incubated under identical conditions in the absence of enzyme (control incubations). Hepatic lipase-treated and control chylomicron remnants were isolated by a second brief centrifugation step using discontinuous salt gradients. Control lipoproteins were collected from one discrete band at d