Cited by 45Genetic Associations and EpidemiologyAtherosclerosis and Cardiovascular DiseasesGenomics and Chromatin Dynamics

Functional Genomics of the 9p21.3 Locus for Atherosclerosis: Clarity or Confusion?

Chen, Hsiao-Huei, Almontashiri, Naif A. M., Antoine, Darlène, Stewart, Alexandre F. R.·2014·Current Cardiology Reports

Abstract

The 9p21.3 locus was the first to yield to genome-wide association studies (GWAS) seeking common genetic variants predisposing to increased risk of coronary artery atherosclerotic disease (CAD). The 59 single nucleotide polymorphisms that show highest association with CAD are clustered in a region 100,000 to 150,000 base pairs 5' to the cyclin-dependent kinase inhibitors CDKN2B (coding for p15(ink4b)) and CDKN2A (coding for p16(ink4a) and p14(ARF)). This region also covers the 3' end of a long noncoding RNA transcribed antisense to CDKN2B (CDKN2BAS, aka ANRIL for antisense noncoding RNA at the ink4 locus) whose expression has been linked to chromatin remodeling at the locus. Despite intensive investigation over the past 7 years, the functional significance of the 9p21.3 locus remains elusive. Other variants at this locus have been associated with glaucoma, glioma, and type 2 diabetes mellitus, diseases that implicate tissue-resident macrophages. Here, we review the evidence that genetic variants at 9p21.3 disrupt tissue-specific enhancers and propose new insights to guide future studies.

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Crossref · 10.1007/s11886-014-0502-7

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  • Chromatin conformation capture in human vascular endothelial cells identified short-range interactions between sequences at the 9p21.3 locus and sequences near CDKN2A, CDKN2B and MTAP, and long-range interactions with IFNW1 and IFNA21 approximately one million base pairs upstream on chromosome 9.

    “Chromatin conformation capture in this region in human vascular endothelial cells identified short-range interactions between sequences at the 9p21.3 locus and sequences in the vicinity of the genes encoding CDKN2A, CDKN2B, and MTAP, and long-range interactions with IFNW1 and IFNA21 approximately one million base pairs upstream on chromosome 9 (ref. 56).”
  • Functional studies in mammalian cells show that ANRIL overexpression accelerated proliferation, increased adhesion and decreased apoptosis.

    “Functional studies in mammalian cells show that ANRIL overexpression accelerated proliferation, increased adhesion and decreased apoptosis5456.”

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Authors
Chen, H.-H., Almontashiri, N. A. M., Antoine, D., & Stewart, A. F. R.
Affiliations
  • Ottawa Hospital Research Institute (CA)
  • Ottawa Heart Institute (CA)
Corresponding author
Stewart, Alexandre F. R.
Venue
Current Cardiology Reports
Published
2014-06-04
Volume
16
Issue
7
Pages
502-502
ISSN
  • 1523-3782 (ISSN-L)
  • 1534-3170
OpenAlex
W2006450437
Cited by
45
References
101
Citations by year
2024: 2 · 2023: 2 · 2021: 1 · 2020: 5 · 2019: 3 · 2018: 8 · 2017: 9 · 2016: 7 · 2015: 5 · 2014: 3
FWCI
1.06
Type
journal article
Language
en
Open access
closed
Locations
  • Current Cardiology Reports (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
Keywords
9p21.3 locus, coronary artery atherosclerosis, CDKN2B, CDKN2A, ANRIL, long non-coding RNA, tissue-specific enhancers, genetic variants, macrophages, chromatin remodeling, functional genomics
MeSH terms
Chromosomes, Human, Pair 9, Humans, Phenotype, Signal Transduction, Genomics, Atherosclerosis, Genome-Wide Association Study

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