A Heart-Hand Syndrome Gene: Tfap2b Plays a Critical Role in the Development and Remodeling of Mouse Ductus Arteriosus and Limb Patterning
2011

Tfap2b Gene's Role in Heart and Limb Development in Mice

publication Evidence: high

Author Information

Author(s): Zhao Feng, Bosserhoff Anja-Katrin, Buettner Reinhard, Moser Markus

Primary Institution: Mount Sinai School of Medicine

Hypothesis

The study aims to elucidate the pathogenesis of Char syndrome at the molecular level by investigating the role of the Tfap2b gene in mouse development.

Conclusion

Tfap2b is crucial for the development of the ductus arteriosus and limb patterning, with its deficiency leading to heart-limb defects.

Supporting Evidence

  • Tfap2b-deficient mice showed patent ductus arteriosus shortly after birth.
  • Histological analysis revealed severe lung congestion in Tfap2b knockout mice.
  • Tfap2b regulates the expression of bone morphogenetic proteins involved in limb development.

Takeaway

The Tfap2b gene helps mice develop their hearts and limbs properly, and when it's missing, they can have serious problems like heart defects and extra fingers.

Methodology

The study involved gene expression analysis, histological examinations, and in situ hybridizations to assess the role of Tfap2b in mouse development.

Limitations

The study primarily focuses on mouse models, which may not fully replicate human conditions.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1371/journal.pone.0022908

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