Differentiation enhances Zika virus infection in neuronal brain cells
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ABSTRACT:
PROVIDER: PRJNA497590 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR8080764_1.fastq.gz | Fastqsanger.gz | |||
| SRR8080764_2.fastq.gz | Fastqsanger.gz | |||
| SRR8080765_1.fastq.gz | Fastqsanger.gz | |||
| SRR8080765_2.fastq.gz | Fastqsanger.gz | |||
| SRR8080766_1.fastq.gz | Fastqsanger.gz |
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Project description:Zika virus (ZIKV) is an emerging, mosquito-borne pathogen associated with a widespread 2015–2016 epidemic in the Western Hemisphere and a proven cause of microcephaly and other fetal brain defects in infants born to infected mothers. ZIKV infections have been also linked to other neurological illnesses in infected adults and children, including Guillain-Barré syndrome (GBS), acute flaccid paralysis (AFP) and meningoencephalitis, but the viral pathophysiology behind those conditions remains poorly understood. Here we investigated ZIKV infectivity in neuroblastoma SH-SY5Y cells, both undifferentiated and following differentiation with retinoic acid. We perform RNA seq, and global trancriptome analysis to corroborate the effect of retinoic acid in SH-SY5Y cells. Then we analyze the virus infection in differentiated and undifferntiated cells. We found that multiple ZIKV strains, representing both the prototype African and contemporary Asian epidemic lineages, were able to replicate in SH-SY5Y cells. Differentiation with resultant expression of mature neuron markers increased infectivity in these cells, and the extent of infectivity correlated with degree of differentiation. Enhanced ZIKV infectivity in a neural cell line following differentiation may contribute to viral neuropathogenesis in the developing or mature central nervous system.
2018-10-20 | GSE121534 | GEO
Project description:Zika virus (ZIKV) is an emerging, mosquito-borne pathogen associated with a widespread 2015-2016 epidemic in the Western Hemisphere and a proven cause of microcephaly and other fetal brain defects in infants born to infected mothers. ZIKV infections have been also linked to other neurological illnesses in infected adults and children, including Guillain-Barré syndrome (GBS), acute flaccid paralysis (AFP) and meningoencephalitis, but the viral pathophysiology behind those conditions remains poorly understood. Here we investigated ZIKV infectivity in neuroblastoma SH-SY5Y cells, both undifferentiated and following differentiation with retinoic acid. We found that multiple ZIKV strains, representing both the prototype African and contemporary Asian epidemic lineages, were able to replicate in SH-SY5Y cells. Differentiation with resultant expression of mature neuron markers increased infectivity in these cells, and the extent of infectivity correlated with degree of differentiation. New viral particles in infected cells were visualized by electron microscopy and found to be primarily situated inside vesicles; overt damage to the Golgi apparatus was also observed. Enhanced ZIKV infectivity in a neural cell line following differentiation may contribute to viral neuropathogenesis in the developing or mature central nervous system.
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Project description:This paper shows that, whereas SOX2+ cells in HDB are highly susceptible to ZKV, SOX2+ primary GBM samples exhibit moderate to high resistance to infection. These datasets address the reasons for this difference, based on infection of primary patient GBM and human developing brain samples with mCherry Zika reporter virus, then FACS sorting the Zika-mCherry positive and negative fractions from each sample for bulk RNA-Sequencing. The primary finding of importance is that Zika resistant GBMs exhibit an immune signature reflecting high levels of infiltration by microglia which are present only in small numbers or absent altogether in human developing brain.
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Project description:Zika virus (ZIKV) is a member of the Flaviviridae family, transmitted by Aedes mosquitoes. ZIKV can be transmitted from pregnant woman to fetus and causes microcephaly and neuronal defects. Patients infected with ZIKV showed increased levels of proinflammatory cytokines compared to healthy individuals and neurological changes even after recovery. However, the detailed mechanism of how neuronal defects occurs after recovery from ZIKV infection has never been investigated in vivo. Here, we found that viral RNA loads were highest in mouse brain tissue 7 days after ZIKV infection and were equivalent to uninfected controls after 21 days, suggesting that mice recovered after 21 days of ZIKV infection. To explore the pathological mechanisms of neuronal defects after recovery from ZIKV infection, we performed RNA-sequencing in mouse cerebral cortex obtained 7 days and 21 days after ZIKV infection.
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Project description:Purpose: The goal of this study is to investigate the effect of Zika virus infection on neural stem cells Methods: RNA-Seq transcriptome analysis of neural stem cells infected with Zika virus compared to mock infected
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Project description:Host and genetic viral adaptations enable development of an immunocompetent mouse model of Zika virus infection. This study explored the effect of wildtype Zika virus (ZIKV) and mouse adapted ZIKV infection on the transcriptional profile of mouse adult neuronal stem cells.
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Project description:To search for host factors regulating Zika virus infection, we performed a genome-wide loss-of-function CRISPR/Cas9 screen in haploid human ESCs. The regulators were identified by the quantification of enrichment of their mutant clones within a pooled loss-of-function library upon Zika virus infection.
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Project description:Zika virus (ZIKV) and dengue virus (DENV) are members of the Flaviviridae family of RNA viruses and cause severe disease in humans. ZIKV and DENV share over 90% of their genome sequences, however the clinical features of Zika and dengue infections are very different reflecting tropism and cellular effects. Here, we used simultaneous RNA sequencing and ribosome footprinting to define the transcriptional and translational dynamics of ZIKV and DENV infection in human neuronal progenitor cells (hNPCs). The gene expression data showed induction of aminoacyl tRNA synthetases (ARS) and the translation-activating PIM1 kinase indicating an increase in RNA translation capacity. The data also reveal activation of different cell stress reponses, with ZIKV triggering a BACH1/2 redox program, and DENV activating the ETF/CHOP endoplasmatic reticulum (ER) stress program. The RNA translation data highlight activation of polyamine metabolism through changes in key enzymes and their regulators. This pathway is needed for eIF5A hypusination and has been implicated viral translation and replication. Concerning the viral RNA genomes, ribosome occupancy readily identifies highly translated open reading frames and a novel upstream ORF (uORF) in the DENV genome. Together, our data highlight both the cellular stress response and also the activation of RNA translation and polyamine metabolism during DENV and ZIKV infection.
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