Cited by 1,065HIV-related health complications and treatmentsLipid metabolism and disordersPeroxisome Proliferator-Activated Receptors

Pathogenesis of HIV-1-protease inhibitor-associated peripheral lipodystrophy, hyperlipidaemia, and insulin resistance.

Carr, Andrew, Samaras, Katherine, Chisholm, Donald J, Cooper, David A·1998·The Lancet

Abstract

HIV-1 protease-inhibitor treatments are associated with a syndrome of peripheral lipodystrophy, central adiposity, breast hypertrophy in women, hyperlipidaemia, and insulin resistance. The catalytic region of HIV-1 protease, to which protease inhibitors bind, has approximately 60% homology to regions within two proteins that regulate lipid metabolism: cytoplasmic retinoic-acid binding protein type 1 (CRABP-1) and low density lipoprotein-receptor-related protein (LRP). We hypothesise that protease inhibitors inhibit CRABP-1-modified, and cytochrome P450 3A-mediated synthesis of cis-9-retinoic acid, a key activator of the retinoid X receptor; and peroxisome proliferator activated receptor type gamma (PPAR-gamma) heterodimer, an adipocyte receptor that regulates peripheral adipocyte differentiation and apoptosis. Protease-inhibitor binding to LRP would impair hepatic chylomicron uptake and triglyceride clearance by the endothelial LRP-lipoprotein lipase complex. The resulting hyperlipidaemia contributes to central fat deposition (and in the breasts in the presence of oestrogen), insulin resistance, and, in susceptible individuals, type 2 diabetes. Understanding the syndrome's pathogenesis should lead to treatment strategies and to the design of protease inhibitors that do not cause this syndrome.

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Crossref · 10.1016/s0140-6736(98)03391-1

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Authors
Carr, A., Samaras, K., Chisholm, D. J., & Cooper, D. A.
Affiliations
  • UNSW Sydney (AU)
  • Garvan Institute of Medical Research (AU)
Corresponding author
Carr, Andrew
Venue
The Lancet
Publisher
Elsevier BV
Published
1998-06
Volume
351
Issue
9119
Pages
1881-1883
ISSN
  • 0099-5355 (ISSN-L)
  • 0140-6736
OpenAlex
W2171030070
Cited by
1,065
References
24
Citations by year
2026: 2 · 2025: 3 · 2024: 12 · 2023: 2 · 2022: 12 · 2021: 7 · 2020: 10 · 2019: 16 · 2018: 15 · 2017: 18 · 2016: 15 · 2015: 18 · 2014: 17 · 2013: 30 · 2012: 23
FWCI
143.69
Type
journal article
Language
en
Open access
closed
Locations
  • The Lancet (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Health and Medical Research Council
  • National Medical Research Council
Topics
  • Health Sciences › Medicine › Emergency Medicine › HIV-related health complications and treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
Keywords
HIV-1 protease inhibitors, hyperlipidemia, insulin resistance, abdominal obesity, breast hypertrophy, LRP, retinoic acid synthesis, retinoid X receptor, PPARγ, adipogenesis, adipocyte apoptosis, lipoprotein lipase, type 2 diabetes
MeSH terms
Cytochrome P-450 Enzyme System, Diabetes Mellitus, Type 2, Female, Humans, Hyperlipidemias, Insulin Resistance, Lipodystrophy, Obesity, Receptors, Immunologic, HIV Protease Inhibitors, Sequence Homology, Amino Acid, Receptors, Retinoic Acid, Low Density Lipoprotein Receptor-Related Protein-1

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