The Methyl-CpG Binding Proteins Mecp2, Mbd2 and Kaiso Are Dispensable for Mouse Embryogenesis, but Play a Redundant Function in Neural Differentiation
2009

Methyl-CpG Binding Proteins and Mouse Embryogenesis

publication Evidence: moderate

Author Information

Author(s): Martín Caballero Isabel, Hansen Janne, Leaford Donna, Pollard Steven, Hendrich Brian D.

Primary Institution: Institute for Stem Cell Research, MRC Centre for Regenerative Medicine, School of Biological Sciences, University of Edinburgh

Hypothesis

What is the role of methyl-CpG binding proteins in mouse embryogenesis and neural differentiation?

Conclusion

The study shows that while DNA methylation is essential for embryonic development, the absence of three specific methyl-CpG binding proteins does not affect mouse embryogenesis but does impact neural differentiation.

Supporting Evidence

  • Mice lacking the methyl-CpG binding proteins showed no overt phenotypes during embryogenesis.
  • Triple knockout neural stem cells displayed an initial defect in neuronal commitment but recovered over time.
  • The absence of these proteins did not affect the formation of neurospheres or their differentiation potential.

Takeaway

This study found that certain proteins that bind to DNA and control gene activity are not needed for making mice, but they help in developing brain cells.

Methodology

The researchers created mice lacking specific methyl-CpG binding proteins and studied their development and neural stem cell behavior.

Limitations

The study does not explore the potential compensatory roles of other methyl-CpG binding proteins in embryonic development.

Statistical Information

P-Value

p<0.005

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0004315

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