Membrane proteins and phospholipids as effectors of reverse cholesterol transport


1. Institute of Biomedical Chemistry RAMN Institute of Physiko-Chemical Medicine
2. Institute of Biomedical Chemistry RAMN
3. Institute of Physiko-Chemical Medicine
Type: Review
UDK: 615.356.973.4.07      PubMed Id: 16805382
Year: 2006 vol: 52  issue:2  pages: 113-123
Abstract: The review highlights the membrane aspect of cholesterol efflux from cell membranes to high density lipoproteins (HDL), an initial stage of reverse cholesterol transport to liver. Special attention is paid to ABC-A1 transporter and membrane SR-B1 receptor, their properties, putative mechanisms of action and their role in reverse cholesterol transport. Interaction of ABC-AI with plasma free apoA1 is suggested to facilitate the efflux of membrane phospholipids and formation of their complex with apoAI. Then this complex accepts the membrane cholesterol, with lipidation till the full HDL particle is formed. For a number of cells the correlation of cholesterol efflux into HDL with SR-BI expression was shown. The reversible binding of receptor SR-BI with HDL is supposed to influence molecular organization of membrane lipids, that promotes the efflux of cholesterol molecules out of the membrane.
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Reference: Torkhovskaya T.I., Ipatova O.M., Medvedeva N.V., Zakharova T.S., Khalilov E.M., Membrane proteins and phospholipids as effectors of reverse cholesterol transport, Biomeditsinskaya khimiya, 2006, vol: 52(2), 113-123.
This paper is also available as the English translation:10.1134/S1990750807010015