Genetic variants of ANRIL and coronary artery disease: Insights from a Turkish study population

Aybike Sena Ozuynuk-Ertugrul1, Cemre Buse Kirsan1, Aycan Fahri Erkan2

  • 1Istanbul University, Aziz Sancar Institute of Experimental Medicine, Department of Genetics, Istanbul, Turkey; Istanbul University Institute of Graduate Studies in Health Sciences, Istanbul, Turkey.

Gene
|April 17, 2024
PubMed

Insights

Genetic variations in ANRIL, a long non-coding RNA, are linked to coronary artery disease (CAD) and its risk factors like hypertension and type 2 diabetes mellitus (T2DM) in Turkish individuals. This study highlights ANRIL polymorphisms as potential biomarkers for CAD susceptibility and severity.

Area of Science:

  • Genetics
  • Molecular Biology
  • Cardiovascular Disease Research

Background:

  • Coronary artery disease (CAD) is a major global health concern, with long non-coding RNAs (lncRNAs) like ANRIL implicated in its development.
  • Understanding the genetic basis of CAD, particularly the role of specific lncRNA polymorphisms, is crucial for risk assessment and targeted therapies.

Purpose of the Study:

  • To investigate the association between specific ANRIL gene polymorphisms (rs1333049, rs564398, rs10757274) and the presence and severity of coronary artery disease (CAD).
  • To explore the relationship between these ANRIL polymorphisms and common CAD risk factors, including hypertension and type 2 diabetes mellitus (T2DM), in a Turkish population.

Main Methods:

  • Genotyping of ANRIL polymorphisms rs1333049, rs564398, and rs10757274 was performed using quantitative reverse transcription polymerase chain reaction (qRT-PCR).
  • The study involved 1285 participants: 736 with diagnosed CAD and 549 healthy controls from a Turkish cohort.

Main Results:

  • Specific ANRIL polymorphisms (rs1333049 G allele, rs10757274 G allele) were associated with increased CAD severity markers (Gensini score, SYNTAX score) and lipid levels in certain subgroups.
  • The rs564398 CC genotype showed increased susceptibility to CAD and severe CAD in females, while its G and T alleles were more prevalent in hypertensive males.
  • Carriage of the rs564398 C allele and rs1333049 C allele was associated with a reduced risk of T2DM and, for rs1333049, also with a reduced risk of CAD combined with T2DM.

Conclusions:

  • Selected ANRIL polymorphisms are significantly associated with CAD presence, severity, and associated risk factors such as T2DM and hypertension in the Turkish population.
  • These findings, from the largest study of its kind in Turkish individuals, support the role of ANRIL variants in cardiovascular disease pathogenesis across different ethnicities.
Abstract