10th molecular biology and biotechnology congress, Adana, Türkiye, 4 - 08 Ekim 2021, ss.70
Coronary artery disease (CAD) is caused by plaque buildup in the wall of the coronary arteries that
supply blood to the heart. Plaque is made up of cholesterol deposits. Plaque buildup causes the inside
of the arteries to narrow over time. This process is called atherosclerosis. N6-Methyladenosine (m6A)
is the most common RNA modification in eukaryotic messenger RNAs (mRNAs). m6A influences
mRNA splicing, export, localization, translation, decay, and stability. m6A RNA modification is
reversible and catalyzed by a recently discovered multicomponent protein complex, including
methyltransferases, demethylases, and m6A binding proteins such as YTH N6-methyladenosine RNA
binding protein 1 and 3 (YTHDF1 and YTHDF3). YTHDF1 and 3 are members of the YTH domaincontaining proteins. m6A mRNA methylation regulates cardiac gene expression. We compared
YTHDF1 and YTHDF3 expression between coronary artery plaque and internal mammary artery
(IMA-choice for coronary artery bypass grafting) in this study. We isolated total RNA from 38 tissue
samples composed of 20 plaque and 18 IMA. Then we performed quantitative real time polymerase
chain reaction (qRT-PCR) using syber green method. GAPDH was used as reference gene. YTHDF1
and YTHDF3 were upregulated 1.41 (p:0.11) and 1.15 fold (p:0.66), respectively in plaque tissue
compared with control samples. As a result, YTHDF1-3 may have effective role RNA methylation
process in coronary artery plaque formation. But further molecular function studies will need in future.