Inhibition of Gap Junction Communication at Ectopic Eph/ephrin Boundaries Underlies Craniofrontonasal Syndrome
2006

Disrupted Intercellular Communication Causes a Disfiguring Birth Defect

publication Evidence: moderate

Author Information

Author(s): Alice Davy, Jeffrey Bush, Philippe Soriano

Hypothesis

How does the breakdown of ephrin-mediated cell sorting lead to physical abnormalities in craniofrontonasal syndrome?

Conclusion

The study shows that disrupted gap junction communication underlies the skeletal abnormalities observed in craniofrontonasal syndrome.

Supporting Evidence

  • Eph/ephrin signaling regulates gap junction communication, which controls cell sorting.
  • Mutations in ephrin-B1 have been linked to craniofrontonasal syndrome.
  • Ephrin-B1 heterozygous females exhibit polydactyly due to random X chromosome inactivation.

Takeaway

When cells can't talk to each other properly, it can cause serious problems in how the body forms, leading to birth defects.

Methodology

The researchers studied ephrin-B1 heterozygous female mice to understand how ephrin-mediated cell sorting affects skeletal development.

Participant Demographics

The study involved ephrin-B1 heterozygous female mice.

Digital Object Identifier (DOI)

10.1371/journal.pbio.0040335

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