Title:Expression Profiles of Long Noncoding and Messenger RNAs in Epicardial
Adipose Tissue-Derived from Patients with Coronary Atherosclerosis
Volume: 20
Issue: 2
Author(s): Yu Du, Yong Zhu, Yan Liu, Jinxing Liu, Chengping Hu, Yan Sun, Dai Zhang, Sai Lv, Yujing Cheng, Hongya Han, Jianwei Zhang, Yingxin Zhao and Yujie Zhou*
Affiliation:
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and
Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical
Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
Keywords:
Long noncoding RNA, messenger RNA, epicardial adipose tissue, coronary artery disease, atherosclerosis, microarray analysis.
Abstract:
Background: Given its close anatomical location to the heart and its endocrine properties,
attention on epicardial adipose tissue (EAT) has increased.
Objective: This study investigated the expression profiles of long noncoding RNAs (lncRNAs) and
messenger RNAs (mRNAs) in EAT derived from patients with coronary artery disease (CAD).
Methods: EAT samples from 8 CAD, and 8 non-CAD patients were obtained during open-heart
surgery, respectively. The expression of lncRNAs and mRNAs in each EAT sample was investigated
using microarray analysis and further verified using reverse transcription-quantitative polymerase
chain reaction.
Results: Overall, 1,093 differentially expressed mRNAs and 2,282 differentially expressed lncRNAs
were identified in EAT from CAD vs. non-CAD patients. Analysis using Gene Ontology and
the Kyoto Encyclopedia of Genes and Genomes showed that these differentially expressed genes
were mainly enriched in various inflammatory, immune, and metabolic processes. They were also
involved in osteoclast differentiation, B cell receptor and adipocytokine signaling, and insulin resistance
pathways. Additionally, lncRNA-mRNA and lncRNA-target pathway networks were built to
identify potential core genes (e.g., Lnc-CCDC68-2:1, AC010148.1, NONHSAT104810) involved
in atherosclerotic pathogenesis.
Conclusion: In summary, lncRNA and mRNA profiles in EAT were markedly different between
CAD and non-CAD patients. Our study identifies several potential key genes and pathways that
may participate in atherosclerosis development.