Research Paper Volume 13, Issue 3 pp 4215—4241

RNA interactions in right ventricular dysfunction induced type II cardiorenal syndrome

Kaitong Chen1, , Xiaoxia Huang1, , Dongxiao Xie1, , Mengjia Shen1, , Hairuo Lin1, , Yingqi Zhu1, , Siyuan Ma1, , Cankun Zheng1, , Lu Chen1, , Yameng Liu1, , Wangjun Liao2, , Jianping Bin1, , Yulin Liao1,3, ,

  • 1 Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
  • 2 Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
  • 3 Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, China

Received: August 6, 2020       Accepted: November 23, 2020       Published: January 20, 2021
How to Cite

Copyright: © 2021 Chen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Right ventricular (RV) dysfunction induced type II cardiorenal syndrome (CRS) has a high mortality rate, but little attention has been paid to this disease, and its unique molecular characteristics remain unclear. This study aims to investigate the transcriptomic expression profile in this disease and identify key RNA pairs that regulate related molecular signaling networks. We established an RV dysfunction-induced type II CRS mouse model by pulmonary artery constriction (PAC). PAC mice developed severe RV hypertrophy and fibrosis; renal atrophy and dysfunction with elevated creatinine were subsequently observed. Expression profiles in RV and kidney tissues were obtained by whole transcriptome sequencing, revealing a total of 741 and 86 differentially expressed (DE) mRNAs, 159 and 29 DEmiRNAs and 233 and 104 DEcircRNAs between RV and kidney tissue, respectively. Competing endogenous RNA (ceRNA) networks were established. A significant alteration in proliferative, fibrotic and metabolic pathways was found based on GO and KEGG analyses, and the network revealed key ceRNA pairs, such as novel_circ_002631/miR-181a-5p/Creb1 and novel_circ_002631/miR-33-y/Kpan6. These findings indicate that significantly dysregulated pathways in RV dysfunction induced type II CRS include Ras, PI3K/Akt, cGMP-PKG pathways, and thyroid metabolic pathways. These ceRNA pairs can be considered potential targets for the treatment of type II CRS.


PAC: Pulmonary artery constriction; CRS: Cardiorenal syndrome; RV: Right ventricular; circRNA: Circular RNA; miRNA: Micro RNA; mRNA: Messenger RNA; GO: Gene ontology; KEGG: Kyoto Encyclopedia of Genes and Genomes.