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Transcriptomic analyses of primary astrocytes under TNF? treatment.

ABSTRACT: Astrocytes, the most abundant glial cell population in the central nervous system, have important functional roles in the brain as blood brain barrier maintenance, synaptic transmission or intercellular communications [1], [2]. Numerous studies suggested that astrocytes exhibit a functional and morphological high degree of plasticity. For example, following any brain injury, astrocytes become reactive and hypertrophic. This phenomenon, also called reactive gliosis, is characterized by a set of progressive gene expression and cellular changes [3]. Interestingly, in this context, astrocytes can re-acquire neurogenic properties. It has been shown that astrocytes can undergo dedifferentiation upon injury and inflammation, and may re-acquire the potentiality of neural progenitors [4], [5], [6], [7]. To assess the effect of inflammation on astrocytes, primary mouse astrocytes were treated with tumor necrosis factor ? (TNF?), one of the main pro-inflammatory cytokines. The strength of this study is that pure primary astrocytes were used. As microglia are highly reactive immune cells, we used a magnetic cell sorting separation (MACS) method to further obtain highly pure astrocyte cultures devoid of microglia. Here, we provide details of the microarray data, which have been deposited in the Gene Expression Omnibus (GEO) under the series accession number GSE73022. The analysis and interpretation of these data are included in Gabel et al. (2015). Analysis of gene expression indicated that the NF?B pathway-associated genes were induced after a TNF? treatment. We have shown that primary astrocytes devoid of microglia can respond to a TNF? treatment with the re-expression of genes implicated in the glial cell development.

SUBMITTER: Birck C

PROVIDER: S-EPMC4778598 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature

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Transcriptomic analyses of primary astrocytes under TNFα treatment.

Birck Cindy C Koncina Eric E Heurtaux Tony T Glaab Enrico E Michelucci Alessandro A Heuschling Paul P Grandbarbe Luc L

Genomics data 20151110

Astrocytes, the most abundant glial cell population in the central nervous system, have important functional roles in the brain as blood brain barrier maintenance, synaptic transmission or intercellular communications [1], [2]. Numerous studies suggested that astrocytes exhibit a functional and morphological high degree of plasticity. For example, following any brain injury, astrocytes become reactive and hypertrophic. This phenomenon, also called reactive gliosis, is characterized by a set of p ...[more]

PMID: 26981349

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Transcriptomic analyses of primary astrocytes under TNF? treatment.

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Transcriptomic analyses of primary astrocytes under TNFα treatment.

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