Reverse engineering a mouse embryonic stem cell-specific transcriptional network reveals a new modulator of neuronal differentiation

Rossella De Cegli, Simona Iacobacci, Gemma Flore, Gennaro Gambardella, Lei Mao, Luisa Cutillo, Mario Lauria, Joachim Klose, Elizabeth Illingworth, Sandro Banfi, Diego Di Bernardo

Research output: Contribution to journalArticle

Abstract

Gene expression profiles can be used to infer previously unknown transcriptional regulatory interaction among thousands of genes, via systems biology 'reverse engineering' approaches. We 'reverse engineered' an embryonic stem (ES)-specific transcriptional network from 171 gene expression profiles, measured in ES cells, to identify master regulators of gene expression ('hubs'). We discovered that E130012A19Rik (E13), highly expressed in mouse ES cells as compared with differentiated cells, was a central 'hub' of the network. We demonstrated that E13 is a protein-coding gene implicated in regulating the commitment towards the different neuronal subtypes and glia cells. The overexpression and knock-down of E13 in ES cell lines, undergoing differentiation into neurons and glia cells, caused a strong up-regulation of the glutamatergic neurons marker Vglut2 and a strong down-regulation of the GABAergic neurons marker GAD65 and of the radial glia marker Blbp. We confirmed E13 expression in the cerebral cortex of adult mice and during development. By immuno-based affinity purification, we characterized protein partners of E13, involved in the Polycomb complex. Our results suggest a role of E13 in regulating the division between glutamatergic projection neurons and GABAergic interneurons and glia cells possibly by epigenetic-mediated transcriptional regulation.

Original languageEnglish
Pages (from-to)711-726
Number of pages16
JournalNucleic Acids Research
Volume41
Issue number2
DOIs
Publication statusPublished - Jan 2013

ASJC Scopus subject areas

  • Genetics

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    De Cegli, R., Iacobacci, S., Flore, G., Gambardella, G., Mao, L., Cutillo, L., Lauria, M., Klose, J., Illingworth, E., Banfi, S., & Di Bernardo, D. (2013). Reverse engineering a mouse embryonic stem cell-specific transcriptional network reveals a new modulator of neuronal differentiation. Nucleic Acids Research, 41(2), 711-726. https://doi.org/10.1093/nar/gks1136