Cited by 24Cholesterol and Lipid MetabolismLipoproteins and Cardiovascular HealthLipid metabolism and disorders

The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.

IDOL G51S Variant Is Associated With High Blood Cholesterol and Increases Low-Density Lipoprotein Receptor Degradation

Adi, Dilare, Lu, Xiao-Yi, Fu, Zhen-Yan, Wei, Jian, Baituola, Gulinaer, Meng, Ya-Jie, Zhou, Yu-Xia, Hu, Ao, Wang, Jin-Kai, Lu, Xiang-Feng, Wang, Yan, Song, Bao-Liang, Ma, Yi-Tong, Luo, Jie·2019·Arteriosclerosis, Thrombosis, and Vascular Biology

Abstract

Objective: A high level of LDL-C (low-density lipoprotein cholesterol) is a major risk factor for cardiovascular disease. The E3 ubiquitin ligase named IDOL (inducible degrader of the LDLR [LDL receptor]; also known as MYLIP [myosin regulatory light chain interacting protein]) mediates degradation of LDLR through ubiquitinating its C-terminal tail. But the expression profile of IDOL differs greatly in the livers of mice and humans. Whether IDOL is able to regulate LDL-C levels in humans remains to be determined. Approach and Results: By using whole-exome sequencing, we identified a nonsynonymous variant rs149696224 in the IDOL gene that causes a G51S (Gly-to-Ser substitution at the amino acid site 51) from a Chinese Uygur family. Large cohort analysis revealed IDOL G51S carriers (+/G51S) displayed significantly higher LDL-C levels. Mechanistically, the G51S mutation stabilized IDOL protein by inhibiting its dimerization and preventing self-ubiquitination and subsequent proteasomal degradation. IDOL(G51S) exhibited a stronger ability to promote ubiquitination and degradation of LDLR. Adeno-associated virus-mediated expression of IDOL(G51S) in mouse liver decreased hepatic LDLR and increased serum levels of LDL-C, total cholesterol, and triglyceride. Conclusions: Our study demonstrates that IDOL(G51S) is a gain-of-function variant responsible for high LDL-C in both humans and mice. These results suggest that IDOL is a key player regulating cholesterol level in humans.

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Crossref · 10.1161/atvbaha.119.312589

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Metadata

Authors
Adi, D., Lu, X.-Y., Fu, Z.-Y., Wei, J., Baituola, G., Meng, Y.-J., Zhou, Y.-X., Hu, A., Wang, J.-K., Lu, X.-F., Wang, Y., Song, B.-L., Ma, Y.-T., & Luo, J.
Affiliations
  • First Affiliated Hospital of Xinjiang Medical University (CN)
  • Chinese Academy of Medical Sciences & Peking Union Medical College (CN)
  • Wuhan University (CN)
  • The People’s Hospital Nanchuan, Chongqing, China (Y.-J.M.)
Corresponding author
  • Adi, Dilare
  • Lu, Xiao-Yi
  • Fu, Zhen-Yan
Venue
Arteriosclerosis, Thrombosis, and Vascular Biology
Published
2019-12
Volume
39
Issue
12
Pages
2468-2479
ISSN
  • 1079-5642 (ISSN-L)
  • 1524-4636
OpenAlex
W2979936870
Cited by
24
References
33
Citations by year
2026: 1 · 2025: 3 · 2024: 4 · 2023: 2 · 2022: 4 · 2021: 6 · 2020: 3 · 2019: 1
FWCI
1.48
Type
journal article
Language
en
Open access
closed
Locations
  • Arteriosclerosis Thrombosis and Vascular Biology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Cholesterol and Lipid Metabolism
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
Keywords
idols, LDL receptor degradation, LDL cholesterol, E3 ubiquitin ligase, gain-of-function mutations, protein stability, protein dimerization, self-ubiquitination, proteasomal degradation, hepatic cholesterol metabolism, familial hypercholesterolemia, cardiovascular risk
MeSH terms
Whole Genome Sequencing, Adult, Animals, Cells, Cultured, Disease Models, Animal, Female, Gene Expression Regulation, Humans, Hyperlipoproteinemias, Cholesterol, LDL, Male, Mice, Inbred BALB C, Middle Aged, Receptors, LDL, RNA, Ubiquitin-Protein Ligases, Mice

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