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  4. In vivo transcriptional profile analysis reveals RNA splicing and chromatin remodeling as prominent processes for adult neurogenesis
 
research article

In vivo transcriptional profile analysis reveals RNA splicing and chromatin remodeling as prominent processes for adult neurogenesis

Lim, Daniel A.
•
Suárez-Fariñas, Mayte
•
Naef, Felix  
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2006
Molecular and cellular neurosciences

Neural stem cells and neurogenesis persist in the adult mammalian brain subventricular zone (SVZ). Cells born in the rodent SVZ migrate to the olfactory bulb (Ob) where they differentiate into interneurons. To determine the gene expression and functional profile of SVZ neurogenesis, we performed three complementary sets of transcriptional analysis experiments using Affymetrix GeneChips: (1) comparison of adult mouse SVZ and Ob gene expression profiles with those of the striatum, cerebral cortex, and hippocampus; (2) profiling of SVZ stem cells and ependyma isolated by fluorescent-activated cell sorting (FACS); and (3) analysis of gene expression changes during in vivo SVZ regeneration after anti-mitotic treatment. Gene Ontology (GO) analysis of data from these three separate approaches showed that in adult SVZ neurogenesis, RNA splicing and chromatin remodeling are biological processes as statistically significant as cell proliferation, transcription, and neurogenesis. In non-neurogenic brain regions, RNA splicing and chromatin remodeling were not prominent processes. Fourteen mRNA splicing factors including Sf3b1, Sfrs2, Lsm4, and Khdrbs1/Sam68 were detected along with 9 chromatin remodeling genes including Mll, Bmi1, Smarcad1, Baf53a, and Hat1. We validated the transcriptional profile data with Northern blot analysis and in situ hybridization. The data greatly expand the catalogue of cell cycle components, transcription factors, and migration genes for adult SVZ neurogenesis and reveal RNA splicing and chromatin remodeling as prominent biological processes for these germinal cells.

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Type
research article
DOI
10.1016/j.mcn.2005.10.005
Author(s)
Lim, Daniel A.
Suárez-Fariñas, Mayte
Naef, Felix  
Hacker, Coleen R.
Menn, Benedicte
Takebayashi, Hirohide
Magnasco, Marcelo
Patil, Nila
Alvarez-Buylla, Arturo
Date Issued

2006

Publisher

Elsevier

Published in
Molecular and cellular neurosciences
Volume

31

Issue

1

Start page

131

End page

48

Subjects

Transcription, Genetic

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
UPNAE  
Available on Infoscience
November 1, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/56529
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