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An APOO Pseudogene on Chromosome 5q Is Associated With Low-Density Lipoprotein Cholesterol Levels.

ABSTRACT: BACKGROUND:Elevated levels of low-density lipoprotein cholesterol (LDL-C) are a major risk factor for cardiovascular disease via its contribution to the development and progression of atherosclerotic lesions. Although the genetic basis of LDL-C has been studied extensively, currently known genetic variants account for only ?20% of the variation in LDL-C levels. METHODS:Through an array-based association analysis in 1102 Amish subjects, we identified a variant strongly associated with LDL-C levels. Using a combination of genetic analyses, zebrafish models, and in vitro experiments, we sought to identify the causal gene driving this association. RESULTS:We identified a founder haplotype associated with a 15 mg/dL increase in LDL-C on chromosome 5. After recombination mapping, the associated region contained 8 candidate genes. Using a zebrafish model to evaluate the relevance of these genes to cholesterol metabolism, we found that expression of the transcribed pseudogene, APOOP1, increased LDL-C and vascular plaque formation. CONCLUSIONS:Based on these data, we propose that APOOP1 regulates levels of LDL-C in humans, thus identifying a novel mechanism of lipid homeostasis.

SUBMITTER: Montasser ME

PROVIDER: S-EPMC6162188 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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An APOO Pseudogene on Chromosome 5q Is Associated With Low-Density Lipoprotein Cholesterol Levels.

Montasser May E ME O'Hare Elizabeth A EA Wang Xiaochun X Howard Alicia D AD McFarland Rebecca R Perry James A JA Ryan Kathleen A KA Rice Kenneth K Jaquish Cashell E CE Shuldiner Alan R AR Miller Michael M Mitchell Braxton D BD Zaghloul Norann A NA Chang Yen-Pei C YC

Circulation 20180901 13

<h4>Background</h4>Elevated levels of low-density lipoprotein cholesterol (LDL-C) are a major risk factor for cardiovascular disease via its contribution to the development and progression of atherosclerotic lesions. Although the genetic basis of LDL-C has been studied extensively, currently known genetic variants account for only ≈20% of the variation in LDL-C levels.<h4>Methods</h4>Through an array-based association analysis in 1102 Amish subjects, we identified a variant strongly associated w ...[more]

PMID: 29593015

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Dataset Information

An APOO Pseudogene on Chromosome 5q Is Associated With Low-Density Lipoprotein Cholesterol Levels.

Publications

An APOO Pseudogene on Chromosome 5q Is Associated With Low-Density Lipoprotein Cholesterol Levels.

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