Increased expression of NF-AT3 and NF-AT4 in the atria correlates with procollagen I carboxyl terminal peptide and TGF-β1 levels in serum of patients with atrial fibrillation

BMC Cardiovascular Disorders

Research Article

ShiJiang Zhang¹  YanHu Wu¹  WeiDong Gu¹  JianWei Qin¹  YongFeng Shao¹  YiJiang Chen¹  Fei Zhao¹  BuQing Ni¹ 

[1] Cardiothoracic Surgery Department, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou RoadJiangsu Province, 210029, Nanjing, China;

关键词: Atrial fibrillation;    Atrial fibrosis;    Transcription factor;    NF-AT3;    NF-AT4;    Carboxyl terminal peptide from pro-collagen I;    N-terminal type I procollagen propeptides;    N-terminal type III procollagen propeptides;   

DOI  :  10.1186/1471-2261-14-167

 received in 2014-07-08, accepted in 2014-11-17,  发布年份 2014

来源: Springer

【 摘 要 】

BackgroundAtrial fibrillation (AF) is the most common cardiac arrhythmia in clinical practice. Unfortunately, the precise mechanisms and sensitive serum biomarkers of atrial remodeling in AF remain unclear. The aim of this study was to determine whether the expression of the transcription factors NF-AT3 and NF-AT4 correlate with atrial structural remodeling of atrial fibrillation and serum markers for collagen I and III synthesis.MethodsRight and left atrial specimens were obtained from 90 patients undergoing valve replacement surgery. The patients were divided into sinus rhythm (n = 30), paroxysmal atrial fibrillation (n = 30), and persistent atrial fibrillation (n = 30) groups. NF-AT3, NF-AT4, and collagen I and III mRNA and protein expression in atria were measured. We also tested the levels of the carboxyl-terminal peptide from pro-collagen I, the N-terminal type I procollagen propeptides, the N-terminal type III procollagen propeptides, and TGF-β1 in serum using an enzyme immunosorbent assay.ResultsNF-AT3 and NF-AT4 mRNA and protein expression were increased in the AF groups, especially in the left atrium. NF-AT3 and NF-AT4 expression in the right atrium was increased in the persistent atrial fibrillation group compared the sinus rhythm group with similar valvular disease. In patients with AF, the expression levels of nuclear NF-AT3 and NF-AT4 correlated with those of collagens I and III in the atria and with PICP and TGF-β1 in blood.ConclusionsThese data support the hypothesis that nuclear NF-AT3 and NF-AT4 participates in atrial structural remodeling, and that PICP and TGF-β1 levels may be sensitive serum biomarkers to estimate atrial structural remodeling with atrial fibrillation.

【 授权许可】

Unknown   
© Zhao et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.