Research Papers: Gerotarget (Focus on Aging):
Identification of long non-coding RNAs as novel biomarker and potential therapeutic target for atrial fibrillation in old adults
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Yingjia Xu1, Ritai Huang2, Jianing Gu3 and Weifeng Jiang1
1 Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
2 Department of Cardiothoracic Surgery, Ren Ji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China
3 Department of Cardiology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
Yingjia Xu, email:
Ritai Huang, email:
Keywords: long non-coding RNAs (lncRNAs), atrial fibrillation (AF), transcription factors, Gerotarget
Received: September 13, 2015 Accepted: February 05, 2016 Published: February 18, 2016
Atrial fibrillation (AF) is a highly prevalent cardiac arrhythmia disease, which widely leads to exacerbate heart failure and ischemic stroke in elder world. Recently, long non-coding RNAs (lncRNAs), a subclass of noncoding RNAs, have been reported to play critical roles in pathophysiology of cardiac heart. However, little is known of their role in cardiac arrhythmia. In the present study, we investigated the expression levels of lncRNAs of AF patients and healthy people with Agilent Human lncRNA array for the first time. 177 lncRNAs of 78243 and 153 mRNAs of 30215 tested were identified to be differentially expressed (≥ 2-fold change), indicating that the expression of many lncRNAs are upregulated or downregulated in AF. Among these, NONHSAT040387 and NONHSAT098586 were the most upregulated and downregulated lncRNAs. Real time quantitative PCR were employed to validate the microarray analysis findings, and the results confirmed the consistence. GO and KEGG pathway analysis were applied to explore the potential lncRNAs functions, some pathways including oxygen transporter activity and protein heterodimerization activity were speculated to be involved in AF pathogenesis. These results shed some light on lncRNAs’ physiologic functions and provide useful information for exploring potential therapeutic treatments for heart rhythm disease.
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