Human cytomegalovirus latent infection alters the expression of cellular and viral microRNA. 2014

Miao Fu, and Yan Gao, and Qiuju Zhou, and Qi Zhang, and Ying Peng, and Kegang Tian, and Jinhua Wang, and Xiaoqun Zheng
Department of the Laboratory Medicine, The Second Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China; Jinhua Municipal Central Hospital, Jinhua, Zhejiang, China.

BACKGROUND MicroRNAs (miRNAs) play important roles in regulating gene expression of plants, animals and viruses. Comprehensive characterization of host and viral miRNA will help uncover the molecular mechanisms that underlie the progression of human cytomegalovirus (HCMV) latent infection. To investigate the miRNA expression profile of HCMV and host cells during latent infection, we performed deep-sequencing analysis of the small RNAs isolated from HCMV-infected and mock-infected human monocytic leukemia cell line, THP-1. RESULTS We established a HCMV latent infection cell model using the THP-1 cells. High-throughput sequencing technology was used to sequence small RNA libraries of the HCMV-infected and mock-infected THP-1 and to investigate their small RNA transcriptomes. We found eight miRNAs including miR-US25-1, miR-US25-2-5p and miR-UL112 that were expressed by HCMV during latent infection. The expressions of the host miRNAs were also affected by HCMV latent infection. At least 49 cellular miRNAs were differentially expressed: 39 were up-regulated and 10 were down-regulated upon HCMV latent infection. The expression of the human miRNA hsa-miR-124-3p was significantly up-regulated in the HCMV latent infection library. In addition, we found 14 cellular novel miRNAs in the HCMV-infected and mock-infected THP-1 libraries. Functional annotation of the target genes of the differentially expressed miRNAs suggested that the majority of the genes are involved in melanogenesis, pathways in cancer, endocytosis and wnt signaling pathway. CONCLUSIONS The small RNA transcriptomes obtained in this study demonstrate the usefulness of the deep-sequencing combined with bioinformatics approach in understanding of the expression and function of host and viral small RNAs in HCMV latent infection. This approach can also be applied to the study of other kinds of viruses.

UI MeSH Term Description Entries
D007951 Leukemia, Myeloid Form of leukemia characterized by an uncontrolled proliferation of the myeloid lineage and their precursors (MYELOID PROGENITOR CELLS) in the bone marrow and other sites. Granulocytic Leukemia,Leukemia, Granulocytic,Leukemia, Myelocytic,Leukemia, Myelogenous,Myelocytic Leukemia,Myelogenous Leukemia,Myeloid Leukemia,Leukemia, Monocytic, Chronic,Monocytic Leukemia, Chronic,Chronic Monocytic Leukemia,Chronic Monocytic Leukemias,Granulocytic Leukemias,Leukemia, Chronic Monocytic,Leukemias, Chronic Monocytic,Leukemias, Granulocytic,Leukemias, Myelocytic,Leukemias, Myelogenous,Leukemias, Myeloid,Monocytic Leukemias, Chronic,Myelocytic Leukemias,Myelogenous Leukemias,Myeloid Leukemias
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D003586 Cytomegalovirus Infections Infection with CYTOMEGALOVIRUS, characterized by enlarged cells bearing intranuclear inclusions. Infection may be in almost any organ, but the salivary glands are the most common site in children, as are the lungs in adults. CMV Inclusion,CMV Inclusions,Congenital CMV Infection,Congenital Cytomegalovirus Infection,Cytomegalic Inclusion Disease,Cytomegalovirus Colitis,Cytomegalovirus Inclusion,Cytomegalovirus Inclusion Disease,Cytomegalovirus Inclusions,Inclusion Disease,Perinatal CMV Infection,Perinatal Cytomegalovirus Infection,Renal Tubular Cytomegalovirus Inclusion,Renal Tubular Cytomegalovirus Inclusions,Salivary Gland Virus Disease,Severe Cytomegalovirus Infection,Severe Cytomegalovirus Infections,Infections, Cytomegalovirus,CMV Infection, Congenital,CMV Infection, Perinatal,Colitis, Cytomegalovirus,Congenital CMV Infections,Congenital Cytomegalovirus Infections,Cytomegalic Inclusion Diseases,Cytomegalovirus Colitides,Cytomegalovirus Inclusion Diseases,Cytomegalovirus Infection,Cytomegalovirus Infection, Congenital,Cytomegalovirus Infection, Perinatal,Cytomegalovirus Infection, Severe,Cytomegalovirus Infections, Severe,Disease, Cytomegalic Inclusion,Disease, Cytomegalovirus Inclusion,Diseases, Cytomegalovirus Inclusion,Inclusion Disease, Cytomegalic,Inclusion Disease, Cytomegalovirus,Inclusion Diseases,Inclusion Diseases, Cytomegalovirus,Inclusion, CMV,Inclusion, Cytomegalovirus,Infection, Congenital CMV,Infection, Congenital Cytomegalovirus,Infection, Cytomegalovirus,Infection, Perinatal CMV,Infection, Perinatal Cytomegalovirus,Infection, Severe Cytomegalovirus,Perinatal CMV Infections,Perinatal Cytomegalovirus Infections
D003587 Cytomegalovirus A genus of the family HERPESVIRIDAE, subfamily BETAHERPESVIRINAE, infecting the salivary glands, liver, spleen, lungs, eyes, and other organs, in which they produce characteristically enlarged cells with intranuclear inclusions. Infection with Cytomegalovirus is also seen as an opportunistic infection in AIDS. Herpesvirus 5, Human,Human Herpesvirus 5,Salivary Gland Viruses,HHV 5,Herpesvirus 5 (beta), Human,Cytomegaloviruses,Salivary Gland Virus,Virus, Salivary Gland,Viruses, Salivary Gland
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015870 Gene Expression The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION. Expression, Gene,Expressions, Gene,Gene Expressions
D017735 Virus Latency The ability of a pathogenic virus to lie dormant within a cell (LATENT INFECTION). In eukaryotes, subsequent activation and viral replication is thought to be caused by extracellular stimulation of cellular transcription factors. Latency in bacteriophage is maintained by the expression of virally encoded repressors. Viral Latency,Latencies, Viral,Latencies, Virus,Latency, Viral,Latency, Virus,Viral Latencies,Virus Latencies
D045744 Cell Line, Tumor A cell line derived from cultured tumor cells. Tumor Cell Line,Cell Lines, Tumor,Line, Tumor Cell,Lines, Tumor Cell,Tumor Cell Lines
D059467 Transcriptome The pattern of GENE EXPRESSION at the level of genetic transcription in a specific organism or under specific circumstances in specific cells. Transcriptomes,Gene Expression Profiles,Gene Expression Signatures,Transcriptome Profiles,Expression Profile, Gene,Expression Profiles, Gene,Expression Signature, Gene,Expression Signatures, Gene,Gene Expression Profile,Gene Expression Signature,Profile, Gene Expression,Profile, Transcriptome,Profiles, Gene Expression,Profiles, Transcriptome,Signature, Gene Expression,Signatures, Gene Expression,Transcriptome Profile
D035683 MicroRNAs Small double-stranded, non-protein coding RNAs, 21-25 nucleotides in length generated from single-stranded microRNA gene transcripts by the same RIBONUCLEASE III, Dicer, that produces small interfering RNAs (RNA, SMALL INTERFERING). They become part of the RNA-INDUCED SILENCING COMPLEX and repress the translation (TRANSLATION, GENETIC) of target RNA by binding to homologous 3'UTR region as an imperfect match. The small temporal RNAs (stRNAs), let-7 and lin-4, from C. elegans, are the first 2 miRNAs discovered, and are from a class of miRNAs involved in developmental timing. RNA, Small Temporal,Small Temporal RNA,miRNA,stRNA,Micro RNA,MicroRNA,Primary MicroRNA,Primary miRNA,miRNAs,pre-miRNA,pri-miRNA,MicroRNA, Primary,RNA, Micro,Temporal RNA, Small,miRNA, Primary,pre miRNA,pri miRNA

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