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Title: Host Cell Transcriptome Profile during Wild-Type and Attenuated Dengue Virus Infection
Authors: Sessions, O.M.
Tan, Y.
Goh, K.C.
Liu, Y.
Tan, P. 
Rozen, S. 
Ooi, E.E.
Issue Date: 2013
Citation: Sessions, O.M., Tan, Y., Goh, K.C., Liu, Y., Tan, P., Rozen, S., Ooi, E.E. (2013). Host Cell Transcriptome Profile during Wild-Type and Attenuated Dengue Virus Infection. PLoS Neglected Tropical Diseases 7 (3) : -. ScholarBank@NUS Repository.
Abstract: Dengue viruses 1-4 (DENV1-4) rely heavily on the host cell machinery to complete their life cycle, while at the same time evade the host response that could restrict their replication efficiency. These requirements may account for much of the broad gene-level changes to the host transcriptome upon DENV infection. However, host gene function is also regulated through transcriptional start site (TSS) selection and post-transcriptional modification to the RNA that give rise to multiple gene isoforms. The roles these processes play in the host response to dengue infection have not been explored. In the present study, we utilized RNA sequencing (RNAseq) to identify novel transcript variations in response to infection with both a pathogenic strain of DENV1 and its attenuated derivative. RNAseq provides the information necessary to distinguish the various isoforms produced from a single gene and their splice variants. Our data indicate that there is an extensive amount of previously uncharacterized TSS and post-transcriptional modifications to host RNA over a wide range of pathways and host functions in response to DENV infection. Many of the differentially expressed genes identified in this study have previously been shown to be required for flavivirus propagation and/or interact with DENV gene products. We also show here that the human transcriptome response to an infection by wild-type DENV or its attenuated derivative differs significantly. This differential response to wild-type and attenuated DENV infection suggests that alternative processing events may be part of a previously uncharacterized innate immune response to viral infection that is in large part evaded by wild-type DENV. © 2013 Sessions et al.
Source Title: PLoS Neglected Tropical Diseases
ISSN: 19352727
DOI: 10.1371/journal.pntd.0002107
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