Plasma Membrane Lipids: An Important Binding Site for All Lipoprotein Classes
Cholesterol is one of the main constituents of plasma membranes; thus, its supply is of utmost importance. This review covers the known mechanisms of cholesterol transfer from circulating lipoprotein particles to the plasma membrane, and vice versa. To achieve homeostasis, the human body utilizes ce...
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2021
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oai:doaj.org-article:db336cda79b445d08cc3975682c816712021-11-25T18:20:02ZPlasma Membrane Lipids: An Important Binding Site for All Lipoprotein Classes10.3390/membranes111108822077-0375https://doaj.org/article/db336cda79b445d08cc3975682c816712021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0375/11/11/882https://doaj.org/toc/2077-0375Cholesterol is one of the main constituents of plasma membranes; thus, its supply is of utmost importance. This review covers the known mechanisms of cholesterol transfer from circulating lipoprotein particles to the plasma membrane, and vice versa. To achieve homeostasis, the human body utilizes cellular de novo synthesis and extracellular transport particles for supply of cholesterol and other lipids via the blood stream. These lipoprotein particles can be classified according to their density: chylomicrons, very low, low, and high-density lipoprotein (VLDL, LDL, and HDL, respectively). They deliver and receive their lipid loads, most importantly cholesterol, to and from cells by several redundant routes. Defects in one of these pathways (e.g., due to mutations in receptors) usually are not immediately fatal. Several redundant pathways, at least temporarily, compensate for the loss of one or more of them, but the defects trigger systemic diseases, such as atherosclerosis later on. Recently, intracellular membrane–membrane contact sites were shown to be involved in intracellular cholesterol transfer and the plasma membrane itself has been proposed to act as a binding site for lipoprotein-mediated cargo unloading.Markus AxmannBirgit PlochbergerMario MikulaFlorian WeberWitta Monika StroblHerbert StanglMDPI AGarticlenon-esterified cholesterolplasma membranelipoprotein particlesHDLLDLChemical technologyTP1-1185Chemical engineeringTP155-156ENMembranes, Vol 11, Iss 882, p 882 (2021) |
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DOAJ |
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non-esterified cholesterol plasma membrane lipoprotein particles HDL LDL Chemical technology TP1-1185 Chemical engineering TP155-156 |
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non-esterified cholesterol plasma membrane lipoprotein particles HDL LDL Chemical technology TP1-1185 Chemical engineering TP155-156 Markus Axmann Birgit Plochberger Mario Mikula Florian Weber Witta Monika Strobl Herbert Stangl Plasma Membrane Lipids: An Important Binding Site for All Lipoprotein Classes |
description |
Cholesterol is one of the main constituents of plasma membranes; thus, its supply is of utmost importance. This review covers the known mechanisms of cholesterol transfer from circulating lipoprotein particles to the plasma membrane, and vice versa. To achieve homeostasis, the human body utilizes cellular de novo synthesis and extracellular transport particles for supply of cholesterol and other lipids via the blood stream. These lipoprotein particles can be classified according to their density: chylomicrons, very low, low, and high-density lipoprotein (VLDL, LDL, and HDL, respectively). They deliver and receive their lipid loads, most importantly cholesterol, to and from cells by several redundant routes. Defects in one of these pathways (e.g., due to mutations in receptors) usually are not immediately fatal. Several redundant pathways, at least temporarily, compensate for the loss of one or more of them, but the defects trigger systemic diseases, such as atherosclerosis later on. Recently, intracellular membrane–membrane contact sites were shown to be involved in intracellular cholesterol transfer and the plasma membrane itself has been proposed to act as a binding site for lipoprotein-mediated cargo unloading. |
format |
article |
author |
Markus Axmann Birgit Plochberger Mario Mikula Florian Weber Witta Monika Strobl Herbert Stangl |
author_facet |
Markus Axmann Birgit Plochberger Mario Mikula Florian Weber Witta Monika Strobl Herbert Stangl |
author_sort |
Markus Axmann |
title |
Plasma Membrane Lipids: An Important Binding Site for All Lipoprotein Classes |
title_short |
Plasma Membrane Lipids: An Important Binding Site for All Lipoprotein Classes |
title_full |
Plasma Membrane Lipids: An Important Binding Site for All Lipoprotein Classes |
title_fullStr |
Plasma Membrane Lipids: An Important Binding Site for All Lipoprotein Classes |
title_full_unstemmed |
Plasma Membrane Lipids: An Important Binding Site for All Lipoprotein Classes |
title_sort |
plasma membrane lipids: an important binding site for all lipoprotein classes |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/db336cda79b445d08cc3975682c81671 |
work_keys_str_mv |
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1718411350510665728 |