Molecular Evaluation of MicroRNA-146 Gene Variability (rs2910164 C> G) and its Association with Increased Susceptibility to Coronary Artery Disease

Author(s): Rashid Mir*, Imadeldin Elfaki, Chandan Jha, Jamsheed Javid, Suriya Rehman, Shaheena Banu, Mohammad Muzaffar Mir, Abdullatif Taha Babakr, Sukh Mohinder Singh Chahal

Journal Name: MicroRNA

Volume 9 , Issue 5 , 2020

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Graphical Abstract:


Aim: Apart from the modifiable risk factors, genetic factors are believed to influence the outcome of Coronary Artery Diseases (CAD). Under the genetic factors, miRNA polymorphisms, namely Hsa-miR-146a-5p (rs2910164) have become an important tool to study the mechanism that underlies the pathogenesis of this disease. Therefore, we investigated the association of miR-146a gene variations with susceptibility of coronary artery diseases.

Methodology: This study was conducted on 100 CAD patients and 117 matched healthy individuals. Genotyping of the Hsa-miR-146a-5p C>G gene variation was performed by using Amplification Refractory Mutation System PCR method (ARMS-PCR).

Results: The distribution of Hsa-miR-146a-5p rs2910164 C>G genotypes observed between patients and controls was significantly different (P=0.048). Moreover, the frequency of G allele (fG) was found to be significantly higher among patients than in controls (0.36 vs. 0.25). Our findings showed that the Hsa-miR-146a-5p C>G variant was associated with an increased risk of CAD in codominant inheritance model CC vs. CG genotype (OR = 1.84, 95% CI, 1.02-3.31; p=0.040) and (OR = 3.18, 95% CI, 1.02-9.9; p=0.045) for CC vs. GG genotype in dominant inheritance model. Whereas the G allele significantly increased the risk of coronary artery disease (OR =1,81, 95% CI, 1.18-2.78; p=0.006) compared to C allele. Taken together, these results demonstrated that miR-146a/rs2910164 is associated with susceptibility to coronary artery disease, providing novel insights into the genetic etiology and underlying biology of coronary artery disease.

Conclusion: Our findings indicated that Hsa-miR-146a-5p rs2910164 GG genotype and G allele are associated with increased susceptibility to Coronary Artery Disease. A larger sample size can be the key to progress in establishing the genetic co-relation of miRNA gene polymorphisms and cardiovascular diseases.

Keywords: Hsa-miR-146a-5p, microRNAs, Coronary Artery Disease (CAD), gene polymorphism, amplification refractory mutation system (ARMS-PCR), miRNA polymorphisms.

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Article Details

Year: 2020
Page: [363 - 372]
Pages: 10
DOI: 10.2174/2211536609666201209151130
Price: $65

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