Olig2-Regulated Lineage-Restricted Pathway Controls Replication Competence in Neural Stem Cells and Malignant Glioma

Document Type

Article

Abstract

Recent studies have identified stem cells in brain cancer. However, their relationship to normal CNS progenitors, including dependence on common lineage-restricted pathways, is unclear. We observe expression of the CNS-restricted transcription factor, OLIG2, in human glioma stem and progenitor cells reminiscent of type C transit-amplifying cells in germinal zones of the adult brain. Olig2 function is required for proliferation of neural progenitors and for glioma formation in a genetically relevant murine model. Moreover, we show p21WAF1/CIP1, a tumor suppressor and inhibitor of stem cell proliferation, is directly repressed by OLIG2 in neural progenitors and gliomas. Our findings identify an Olig2-regulated lineage-restricted pathway critical for proliferation of normal and tumorigenic CNS stem cells. © 2007 Elsevier Inc. All rights reserved.

Keywords

HUMDISEASE, MOLNEURO, STEMCELL

Publication Date

2-15-2007

Publication Title

Neuron

ISSN

08966273

Volume

53

Issue

4

First Page

503

Last Page

517

PubMed ID

17296553

Digital Object Identifier (DOI)

10.1016/j.neuron.2007.01.009

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