In vivo clonal analysis reveals self-renewing and multipotent adult neural stem cell characteristics

Michael A. Bonaguidi, Michael A. Wheeler, Jason S. Shapiro, Ryan P. Stadel, Gerald J. Sun, Guo Li Ming, Hongjun Song

Research output: Contribution to journalArticlepeer-review

Abstract

Neurogenesis and gliogenesis continue in discrete regions of the adult mammalian brain. A fundamental question remains whether cell genesis occurs from distinct lineage-restricted progenitors or from self-renewing and multipotent neural stem cells in the adult brain. Here, we developed a genetic marking strategy for lineage tracing of individual, quiescent, and nestin-expressing radial glia-like (RGL) precursors in the adult mouse dentate gyrus. Clonal analysis identified multiple modes of RGL activation, including asymmetric and symmetric self-renewal. Long-term lineage tracing in vivo revealed a significant percentage of clones that contained RGL(s), neurons, and astrocytes, indicating capacity of individual RGLs for both self-renewal and multilineage differentiation. Furthermore, conditional Pten deletion in RGLs initially promotes their activation and symmetric self-renewal but ultimately leads to terminal astrocytic differentiation and RGL depletion in the adult hippocampus. Our study identifies RGLs as self-renewing and multipotent neural stem cells and provides novel insights into in vivo properties of adult neural stem cells.

Original languageEnglish (US)
Pages (from-to)1142-1155
Number of pages14
JournalCell
Volume145
Issue number7
DOIs
StatePublished - Jun 24 2011

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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