Transcriptome analysis of sheep oral mucosa response to Orf virus infection

PLoS One

Leilei Zhan¹  Yu Zhang¹  Yaxun Wei¹  Yi Zhang¹  Zhizhong Jing²  Xiaoxia Wang³  Xiaobing He⁴  Yuan Feng⁴  Guohua Chen⁴  Huaijie Jia⁴ 

[1] Center for Genome Analysis, ABLife Inc., Wuhan, Hubei, China;Laboratory for Genome Regulation and Human Health, ABLife Inc., Wuhan, Hubei, China;School of Public Health, Faculty of Medicine, Lanzhou University, Lanzhou, Gansu, China;State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Public Health of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China

关键词: Apoptosis;    Gene expression;    Sheep;    Immune response;    Host cells;    Viral gene expression;    Gene ontologies;    Orf;   

DOI  :  10.1371/journal.pone.0186681

学科分类：医学（综合）

来源: Public Library of Science

【 摘 要 】

Contagious ecthyma is a highly contagious disease with worldwide distribution, which is caused by the Orf virus (ORFV) belonging to the Parapoxvirus. To study the alteration of host gene expression in response to ORFV infection at the transcriptional level, several young small-tailed Han sheep were inoculated with ORFV, and their oral mucosa tissue samples (T0, T3, T7 and T15) were collected on day 0, 3, 7 and 15 after ORFV infection respectively. RNA-seq transcriptome comparisons were performed, showing that 1928, 3219 and 2646 differentially expressed genes (DEGs) were identified among T3 vs. T0, T7 vs. T0, and T15 vs. T0 respectively. Gene Ontology (GO) analyses of the DEGs from these comparisons, revealed that ORFV might provoke vigorous immune response of the host cells during the early stage of infection. Moreover, GO and network analysis showed that positive and negative regulative mechanisms of apoptosis were integrated in the host cells through up or down-regulating the expression level of DEGs involved in apoptotic pathways, in order to reach a homeostasis of oral mucosa tissues during the exposure to ORFV infection. In conclusion, our study for the first time describes the direct effects of ORFV on the global host gene expression of its host using high-throughput RNA sequencing, which provides a resource for future characterizing the interaction mechanism between the mammalian host and ORFV.

【 授权许可】

CC BY