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Open Access Green as soon as Postprint is submitted to ZB.
Systematic analysis of viral and cellular microRNA targets in cells latently infected with human γ-herpesviruses by RISC immunoprecipitation assay.
Cell Host Microbe 7, 324-334 (2010)
The mRNA targets of microRNAs (miRNAs) can be identified by immunoprecipitation of Argonaute (Ago) protein-containing RNA-induced silencing complexes (RISCs) followed by microarray analysis (RIP-Chip). Here we used Ago2-based RIP-Chip to identify transcripts targeted by Kaposi's sarcoma-associated herpesvirus (KSHV) miRNAs (n = 114), Epstein-Barr virus (EBV) miRNAs (n = 44), and cellular miRNAs (n = 2337) in six latently infected or stably transduced human B cell lines. Of the six KSHV miRNA targets chosen for validation, four showed regulation via their 3'UTR, while two showed regulation via binding sites within coding sequences. Two genes governing cellular transport processes (TOMM22 and IPO7) were confirmed to be targeted by EBV miRNAs. A significant number of viral miRNA targets were upregulated in infected cells, suggesting that viral miRNAs preferentially target cellular genes induced upon infection. Transcript half-life both of cellular and viral miRNA targets negatively correlated with recruitment to RISC complexes, indicating that RIP-Chip offers a quantitative estimate of miRNA function.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Sarcoma-associated herpesvirus; Primary effusion lymphoma; Virus-encodes micrornas; Outer-membrane; Messenger-RNAs; RIP-chip; B-cells; Identification; Expression; Pathway
ISSN (print) / ISBN
1931-3128
e-ISSN
1934-6069
Journal
Cell Host & Microbe
Quellenangaben
Volume: 7,
Issue: 4,
Pages: 324-334
Publisher
Elsevier
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Molecular Immunology (IMI)