A transcriptional repressor MeCP2 causing Rett syndrome is expressed in embryonic non-neuronal cells and controls their growth

Brain Res Dev Brain Res. 2005 Jun 9;157(1):103-6. doi: 10.1016/j.devbrainres.2005.03.011.

Abstract

An epigenetic key protein MeCP2 is thought to be expressed exclusively in mature neurons. Here, we show that MeCP2 is expressed in embryonic non-neuronal cells by immunocytochemistry and Western blotting, and that knockdown of MeCP2 levels using RNA interference reduces their proliferation. These findings suggest that MeCP2 is essential to non-neuronal cell growth during brain development, which may be associated with microcephaly of Rett syndrome patients with MeCP2 mutations.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Blotting, Western / methods
  • Bromodeoxyuridine / metabolism
  • Cell Count / methods
  • Cell Fractionation / methods
  • Cell Proliferation / drug effects
  • Cells, Cultured
  • Cerebral Cortex / cytology*
  • Chromosomal Proteins, Non-Histone / chemistry
  • Chromosomal Proteins, Non-Histone / deficiency
  • Chromosomal Proteins, Non-Histone / metabolism*
  • DNA-Binding Proteins / chemistry
  • DNA-Binding Proteins / deficiency
  • DNA-Binding Proteins / metabolism*
  • Embryo, Mammalian
  • Gene Expression Regulation, Developmental / physiology*
  • Glial Fibrillary Acidic Protein / metabolism
  • Immunohistochemistry / methods
  • Methyl-CpG-Binding Protein 2
  • Mice
  • Mice, Knockout
  • Microtubule-Associated Proteins / metabolism
  • Neuroglia / drug effects
  • Neuroglia / metabolism*
  • RNA, Small Interfering / pharmacology
  • Repressor Proteins / chemistry
  • Repressor Proteins / metabolism*
  • Rett Syndrome / genetics
  • Rett Syndrome / metabolism*
  • Time Factors

Substances

  • Chromosomal Proteins, Non-Histone
  • DNA-Binding Proteins
  • Glial Fibrillary Acidic Protein
  • Mecp2 protein, mouse
  • Methyl-CpG-Binding Protein 2
  • Microtubule-Associated Proteins
  • Mtap2 protein, mouse
  • RNA, Small Interfering
  • Repressor Proteins
  • Bromodeoxyuridine