PMID- 27330868 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20160622 LR - 20200930 IS - 2167-8359 (Print) IS - 2167-8359 (Electronic) IS - 2167-8359 (Linking) VI - 4 DP - 2016 TI - Different RNA splicing mechanisms contribute to diverse infective outcome of classical swine fever viruses of differing virulence: insights from the deep sequencing data in swine umbilical vein endothelial cells. PG - e2113 LID - 10.7717/peerj.2113 [doi] LID - e2113 AB - Molecular mechanisms underlying RNA splicing regulation in response to viral infection are poorly understood. Classical swine fever (CSF), one of the most economically important and highly contagious swine diseases worldwide, is caused by classical swine fever virus (CSFV). Here, we used high-throughput sequencing to obtain the digital gene expression (DGE) profile in swine umbilical vein endothelial cells (SUVEC) to identify different response genes for CSFV by using both Shimen and C strains. The numbers of clean tags obtained from the libraries of the control and both CSFV-infected libraries were 3,473,370, 3,498,355, and 3,327,493 respectively. In the comparison among the control, CSFV-C, and CSFV-Shimen groups, 644, 158, and 677 differentially expressed genes (DEGs) were confirmed in the three groups. Pathway enrichment analysis showed that many of these DEGs were enriched in spliceosome, ribosome, proteasome, ubiquitin-mediated proteolysis, cell cycle, focal adhesion, Wnt signalling pathway, etc., where the processes differ between CSFV strains of differing virulence. To further elucidate important mechanisms related to the differential infection by the CSFV Shimen and C strains, we identified four possible profiles to assess the significantly expressed genes only by CSFV Shimen or CSFV C strain. GO analysis showed that infection with CSFV Shimen and C strains disturbed 'RNA splicing' of SUVEC, resulting in differential 'gene expression' in SUVEC. Mammalian target of rapamycin (mTOR) was identified as a significant response regulator contributed to impact on SUVEC function for CSFV Shimen. This computational study suggests that CSFV of differing virulence could induce alterations in RNA splicing regulation in the host cell to change cell metabolism, resulting in acute haemorrhage and pathological damage or infectious tolerance. FAU - Ning, Pengbo AU - Ning P AD - College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi; School of Life Science and Technology, Xidian University, Xi'an, China. FAU - Zhou, Yulu AU - Zhou Y AD - College of Science, Northwest A&F University , Yangling , China. FAU - Liang, Wulong AU - Liang W AD - College of Veterinary Medicine, Northwest A&F University , Yangling , Shaanxi. FAU - Zhang, Yanming AU - Zhang Y AD - College of Veterinary Medicine, Northwest A&F University , Yangling , Shaanxi. LA - eng PT - Journal Article DEP - 20160608 PL - United States TA - PeerJ JT - PeerJ JID - 101603425 PMC - PMC4906664 OTO - NOTNLM OT - CSFV C OT - CSFV Shimen OT - RNA splicing OT - SUVEC OT - mTOR COIS- The authors declare that there are no competing interests. EDAT- 2016/06/23 06:00 MHDA- 2016/06/23 06:01 PMCR- 2016/06/08 CRDT- 2016/06/23 06:00 PHST- 2016/02/03 00:00 [received] PHST- 2016/05/17 00:00 [accepted] PHST- 2016/06/23 06:00 [entrez] PHST- 2016/06/23 06:00 [pubmed] PHST- 2016/06/23 06:01 [medline] PHST- 2016/06/08 00:00 [pmc-release] AID - 2113 [pii] AID - 10.7717/peerj.2113 [doi] PST - epublish SO - PeerJ. 2016 Jun 8;4:e2113. doi: 10.7717/peerj.2113. eCollection 2016.