PTEN in neural precursor cells: Regulation of migration, apoptosis, and proliferation

Li Li, Fenghua Liu, Rebecca A. Salmonsen, Tod K. Turner, N. Scott Litofsky, Antonio Di Cristofano, Pier Paolo Pandolfi, Stephen N. Jones, Larry D. Recht, Alonzo H. Ross

Research output: Contribution to journalArticlepeer-review

117 Scopus citations


PTEN is a lipid phosphatase, and PTEN mutations are associated with gliomas, macrocephaly, and mental deficiencies. We have used PTEN +/- mice to assess PTEN's role in subventricular zone (SVZ) precursor cells. For cultured SVZ neurosphere cells, haploinsufficiency for PTEN increases phosphorylation of Akt and forkhead transcription factor and slightly enhances proliferation. Based on a filter penetration assay, PTEN +/- cells are substantially more migratory and invasive than +/+ cells. The +/- cells also are more resistant to H2O2-induced apoptosis. Analysis of PTEN +/- and +/+ mice by BrdU labeling reveals no difference in the rate of cell proliferation in the SVZ. Exit of BrdU-labeled cells from the SVZ and radial migration to the outer layers of the olfactory bulb are more rapid for +/- cells. These observations indicate that PTEN regulates SVZ precursor cell function and is particularly important for migration and apoptosis in response to oxidative stress.

Original languageEnglish (US)
Pages (from-to)21-29
Number of pages9
JournalMolecular and Cellular Neuroscience
Issue number1
StatePublished - 2002
Externally publishedYes

ASJC Scopus subject areas

  • Molecular Biology
  • Cellular and Molecular Neuroscience
  • Cell Biology


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