Comparative analysis of microRNAs from the lungs and trachea of dogs (Canis familiaris) infected with canine influenza virus
文献类型: 外文期刊
第一作者: Su, Shuo
作者: Su, Shuo;Zhou, Pei;Xu, Ting-Chuan;Zhang, Liang-Quan;Cao, Nan;Qi, Wen-Bao;Zhang, Gui-Hong;Li, Shou-Jun;Zhao, Fu-Rong;Zhou, Dong-Hui
作者机构:
关键词: MicroRNA (miRNA);High-throughput sequencing;Differentially expressed;Canine influenza virus (CIV)
期刊名称:INFECTION GENETICS AND EVOLUTION ( 影响因子:3.342; 五年影响因子:3.188 )
ISSN: 1567-1348
年卷期: 2014 年 21 卷
页码:
收录情况: SCI
摘要: MicroRNAs (miRNAs) are a class of endogenous non-coding small RNAs of 18-22-nucleotides in length that regulate gene expression at the post-transcriptional level. The objective of this study was to examine the differences in the miRNA expression profiles of the lungs and trachea of beagle dogs infected with canine influenza virus (CIV). Total RNA was isolated from lung and trachea tissues of beagle dogs infected and non-infected with H3N2 CIV at 4 dpi. A total of 41,512,315 and 39,107,475 reads were obtained from the lung and trachea, respectively. Out of a total 288 dog miRNAs available in miRBase, 227 and 236 miRNAs were detected in the infected (Fg) and the non-infected lungs (Fc), respectively, whereas 242 miRNAs were detected in both the infected (Qg) and the non-infected trachea (Qc). From these, 34 and 45 miRNAs were differentially expressed in the lungs and trachea between the infected and non-infected dogs, respectively. More miRNAs were highly expressed in the non-infected tissues than in the infected tissues. miR-143 was the most abundantly expressed miRNA in the four samples, followed by let-7. In total, 252, 234, 196 and 235 novel miRNAs were identified in the Fc, Fg, Qc, and Qg groups, respectively. To our knowledge, this is the first study examining the miRNA gene expression in CIV infected dogs using the Solexa sequencing approach. We have revealed the existence of a large number miRNAs that are affected by CIV infection as well as identified some potentially new miRNAs. These findings will help us better understand the host-CIV interaction and its relationship to pathogenesis, as well as contribute to the prevention and control of CIV. (C) 2013 Elsevier B. V. All rights reserved.
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