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Long intergenic non-coding RNA GALMD3 in chicken Marek's disease

文献类型: 外文期刊

作者: Han, Bo 1 ; He, Yanghua 2 ; Zhang, Li 3 ; Ding, Yi 2 ; Lian, Ling 1 ; Zhao, Chunfang 1 ; Song, Jiuzhou 2 ; Yang, Ning 1 ;

作者机构: 1.China Agr Univ, Dept Anim Genet & Breeding, Natl Engn Lab Anim Breeding, Coll Anim Sci & Technol, Beijing 100193, Peoples R China

2.Univ Maryland, Dept Anim & Avian Sci, College Pk, MD 20742 USA

3.Beijing Acad Agr & Forestry Sci, Inst Anim Sci & Vet Med, Beijing 100097, Peoples R China

期刊名称:SCIENTIFIC REPORTS ( 影响因子:4.379; 五年影响因子:5.133 )

ISSN: 2045-2322

年卷期: 2017 年 7 卷

页码:

收录情况: SCI

摘要: Long intergenic non-coding RNAs (lincRNAs) are transcribed from non-coding DNA sequences. Studies have revealed that aberrant expressions of lincRNAs are associated with various types of cancers and neurological disorders. Marek's disease (MD) is a highly contagious T-cell lymphoid neoplasia of chicken induced by Marek's disease virus (MDV). In this study, we first identified and validated linc-GALMD3 highly expressed in MDV-infected CD4+ T cells by RNA-Seq and qRT-PCR. By RNA-Seq analysis in MDCC-MSB1 cells after loss of function of linc-GALMD3 by shRNA, we found that linc-GALMD3 could positively cis-regulate its downstream gga-miR-223 gene expression. In contrast, it could trans-regulate the 748 differentially expressed genes (FDR < 0.01) that were mainly enriched into mitochondrial structure and cell cycle processes using GO analysis. Of these, the most significantly expressed gene EPYC might cause iris lesion in MD. The other eight genes, NDUFA4, NDUFB6, NDUFV1, NDUFS8, SDHB, UQCRC1, UQCRC2, and COX7A2, actively participated in oxidative phosphorylation in mitochondrial dysfunction and cell death. Most importantly, we found that the MDV replication was repressed when linc-GALMD3 was knocked down in CEF cells. Our results suggested that linc-GALMD3 might be a critical regulator in chicken MD and could be used as a candidate-promising mark for MD prevention, diagnosis, and treatment.

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