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Zika Virus Disrupts Phospho-TBK1 Localization and Mitosis in Human Neural Stem Cell Model Systems

ABSTRACT: Purpose: Use single cell RNA-seq technology on neural epithelial stem cell culture to understand the composition and transcriptome property of the model system. The culture system was then used to study ZIKV infection. Methods: Single cell RNA-seq and bioinformatic analysis on NES cells in culture and single cells from 5-6 post conception week (pcw), 16 pcw, as well as 19-20 pcw human fetal neocortex. Results: We find that NES cells are highly similar to RGCs and neural progenitor cells in terms of their gene expression profile. Both NES cells and neural stem cells/progenitors from fetal neocortex expressed canonical marker genes of proliferating and differentiating neuronal cells. Conclusions: We successfully established the NCX-NES cell culture as an experimental system for the study of neural stem cells and used it to study ZIKV infection

ORGANISM(S): Homo sapiens

PROVIDER: GSE81475 | GEO | 2016/09/06

SECONDARY ACCESSION(S): PRJNA321741

REPOSITORIES: GEO

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Project description:Cerebral organoids â three-dimensional cultures of human cerebral tissue derived from pluripotent stem cells â have emerged as models of human cortical development. However, the extent to which in vitro organoid systems recapitulate neural progenitor cell proliferation and neuronal differentiation programs observed in vivo remains unclear. Here we use single-cell RNA sequencing (scRNA-seq) to dissect and compare cell composition and progenitor-to-neuron lineage relationships in human cerebral organoids and fetal neocortex. Covariation network analysis using the fetal neocortex data reveals known and novel interactions among genes central to neural progenitor proliferation and neuronal differentiation. In the organoid, we detect diverse progenitors and differentiated cell types of neuronal and mesenchymal lineages, and identify cells that derived from regions resembling the fetal neocortex. We find that these organoid cortical cells use gene expression programs remarkably similar to those of the fetal tissue in order to organize into cerebral cortex-like regions. Our comparison of in vivo and in vitro cortical single cell transcriptomes illuminates the genetic features underlying human cortical development that can be studied in organoid cultures. 734 single-cell transcriptomes from human fetal neocortex or human cerebral organoids from multiple time points were analyzed in this study. All single cell samples were processed on the microfluidic Fluidigm C1 platform and contain 92 external RNA spike-ins. Fetal neocortex data were generated at 12 weeks post conception (chip 1: 81 cells; chip 2: 83 cells) and 13 weeks post conception (62 cells). Cerebral organoid data were generated from dissociated whole organoids derived from induced pluripotent stem cell line 409B2 (iPSC 409B2) at 33 days (40 cells), 35 days (68 cells), 37 days (71 cells), 41 days (74 cells), and 65 days (80 cells) after the start of embryoid body culture. Cerebral organoid data were also generated from microdissected cortical-like regions from H9 embryonic stem cell derived organoids at 53 days (region 1, 48 cells; region 2, 48 cells) or from iPSC 409B2 organoids at 58 days (region 3, 43 cells; region 4, 36 cells).

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Zika Virus Disrupts Phospho-TBK1 Localization and Mitosis in Human Neural Stem Cell Model Systems

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