HDL, cholesterol efflux, and ABCA1: Free from good and evil dualism

Homozygotes for loss-of-function mutations in ABCA1 cause Tangier disease. The phenotype of their markedly reduced or loss of blood high-density lipoprotein (HDL) cholesterol, as well as examination of ATP-binding cassette transporter A1 (ABCA1)-deficient mice, proved that ABCA1 is a key player in H...

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Main Author: Masatsune Ogura
Format: Article
Language:English
Published: Elsevier 2022-10-01
Series:Journal of Pharmacological Sciences
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1347861322000548
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author Masatsune Ogura
author_facet Masatsune Ogura
author_sort Masatsune Ogura
collection DOAJ
description Homozygotes for loss-of-function mutations in ABCA1 cause Tangier disease. The phenotype of their markedly reduced or loss of blood high-density lipoprotein (HDL) cholesterol, as well as examination of ATP-binding cassette transporter A1 (ABCA1)-deficient mice, proved that ABCA1 is a key player in HDL production. The ABCA1-mediated cholesterol efflux is the first step in the reverse cholesterol transport system and understanding the regulation of its expression was expected to lead to the development of anti-atherosclerotic drugs. However, from the viewpoint of intracellular cholesterol homeostasis, it is difficult to say that simple activation of ABCA1 or promotion of cholesterol efflux is a good strategy. To date, there is no evidence that HDL-increasing drugs by enhancing ABCA1 expression prevent atherosclerotic disease in humans. On the other hand, in situations where intracellular cholesterol homeostasis is disrupted by inflammation, aging, or metabolic abnormalities, a strategy that restores reduced ABCA1 expression and cholesterol efflux in a timely and localized manner may be useful.
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spelling doaj.art-78ac949d62c541238685335b80cd88842022-12-22T02:15:11ZengElsevierJournal of Pharmacological Sciences1347-86132022-10-0115028189HDL, cholesterol efflux, and ABCA1: Free from good and evil dualismMasatsune Ogura0Department of General Medical Science, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chiba 2608677, Japan; Department of Metabolism and Endocrinology, Eastern Chiba Medical Center, 3-6-2, Okayamadai, Togane 283-8686, Japan; Department of General Medical Science, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chiba 2608677, Japan.Homozygotes for loss-of-function mutations in ABCA1 cause Tangier disease. The phenotype of their markedly reduced or loss of blood high-density lipoprotein (HDL) cholesterol, as well as examination of ATP-binding cassette transporter A1 (ABCA1)-deficient mice, proved that ABCA1 is a key player in HDL production. The ABCA1-mediated cholesterol efflux is the first step in the reverse cholesterol transport system and understanding the regulation of its expression was expected to lead to the development of anti-atherosclerotic drugs. However, from the viewpoint of intracellular cholesterol homeostasis, it is difficult to say that simple activation of ABCA1 or promotion of cholesterol efflux is a good strategy. To date, there is no evidence that HDL-increasing drugs by enhancing ABCA1 expression prevent atherosclerotic disease in humans. On the other hand, in situations where intracellular cholesterol homeostasis is disrupted by inflammation, aging, or metabolic abnormalities, a strategy that restores reduced ABCA1 expression and cholesterol efflux in a timely and localized manner may be useful.http://www.sciencedirect.com/science/article/pii/S1347861322000548Intracellular cholesterol homeostasisHDLCholesterol effluxABCA1Drug discovery
spellingShingle Masatsune Ogura
HDL, cholesterol efflux, and ABCA1: Free from good and evil dualism
Journal of Pharmacological Sciences
Intracellular cholesterol homeostasis
HDL
Cholesterol efflux
ABCA1
Drug discovery
title HDL, cholesterol efflux, and ABCA1: Free from good and evil dualism
title_full HDL, cholesterol efflux, and ABCA1: Free from good and evil dualism
title_fullStr HDL, cholesterol efflux, and ABCA1: Free from good and evil dualism
title_full_unstemmed HDL, cholesterol efflux, and ABCA1: Free from good and evil dualism
title_short HDL, cholesterol efflux, and ABCA1: Free from good and evil dualism
title_sort hdl cholesterol efflux and abca1 free from good and evil dualism
topic Intracellular cholesterol homeostasis
HDL
Cholesterol efflux
ABCA1
Drug discovery
url http://www.sciencedirect.com/science/article/pii/S1347861322000548
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