Tet1 regulates adult hippocampal neurogenesis and cognition

Cell Stem Cell. 2013 Aug 1;13(2):237-45. doi: 10.1016/j.stem.2013.05.006. Epub 2013 Jun 13.

Abstract

DNA hydroxylation catalyzed by Tet dioxygenases occurs abundantly in embryonic stem cells and neurons in mammals. However, its biological function in vivo is largely unknown. Here, we demonstrate that Tet1 plays an important role in regulating neural progenitor cell proliferation in adult mouse brain. Mice lacking Tet1 exhibit impaired hippocampal neurogenesis accompanied by poor learning and memory. In adult neural progenitor cells deficient in Tet1, a cohort of genes involved in progenitor proliferation were hypermethylated and downregulated. Our results indicate that Tet1 is positively involved in the epigenetic regulation of neural progenitor cell proliferation in the adult brain.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aging / metabolism*
  • Animals
  • Cell Proliferation
  • Cognition*
  • DNA Methylation / genetics
  • DNA-Binding Proteins / deficiency
  • DNA-Binding Proteins / metabolism*
  • Dentate Gyrus / cytology
  • Gene Expression Regulation
  • Green Fluorescent Proteins / metabolism
  • Hippocampus / growth & development*
  • Hippocampus / metabolism*
  • Memory
  • Mice
  • Nestin / metabolism
  • Neurogenesis* / genetics
  • Neurons / cytology
  • Neurons / metabolism
  • Promoter Regions, Genetic / genetics
  • Proto-Oncogene Proteins / deficiency
  • Proto-Oncogene Proteins / metabolism*
  • Stem Cells / cytology
  • Stem Cells / metabolism

Substances

  • DNA-Binding Proteins
  • Nestin
  • Proto-Oncogene Proteins
  • TET1 protein, mouse
  • Green Fluorescent Proteins