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Impact of Zika Virus Infection on Human Neural Stem Cell MicroRNA Signatures [array]

ABSTRACT: Impact of Zika Virus Infection on Human Neural Stem Cell MicroRNA Signatures [array]

PROVIDER: PRJNA661577 | ENA |

REPOSITORIES: ENA

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Impact of Zika Virus Infection on Human Neural Stem Cell MicroRNA Signatures [array]

Project description:We used whole genome expression profiling to analyze the effects of Zika virus (ZIKV) strains Uganda and French Polynesia on the mRNA transcriptome of induced pluripotent stem cell-derived human neural stem cells (long-term self-renewing neuroepithelial-like stem (lt-NES®) cells) - particularly to identify differentially expressed genes which are associated with microcephaly phenotype.

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Impact of Zika Virus Infection on Human Neural Stem Cell MicroRNA Signatures

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Project description:Zika virus (ZIKV) is a mosquito-borne virus, which can cause brain abnormalities in newborns, including microcephaly. MicroRNAs (miRNAs) are small non-coding RNAs, which post- transcriptionally regulate gene expression. They are involved in various processes including neurological development and host responses to viral infection, but their potential role in ZIKV pathogenesis remains poorly understood. MiRNAs can be incorporated into extracellular vesicles (EVs) and mediate cell-to-cell communication. While it is well known that in viral infections EVs carrying miRNAs can play a crucial role in disease pathogenesis, ZIKV effects on EV-delivered miRNAs and their contribution to ZIKV pathogenesis have not been elucidated. In the present study, we profiled intracellular and EV-derived miRNAs by next generation sequencing and analyzed the host mRNA transcriptome of neural stem cells during infection with ZIKV Uganda and French Polynesia strains. We identified numerous miRNAs, including miR-4792, which were dysregulated at the intracellular level and had altered levels in EVs during ZIKV infection. Integrated analyses of differentially expressed genes and miRNAs showed that ZIKV infection had an impact on processes associated with neurodevelopment and oxidative stress. Our results provide insights into the roles of intracellular and EV-associated host miRNAs in ZIKV pathogenesis.

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