Deficient Alk3-mediated BMP signaling causes prenatal omphalocele-like defect

Jianping Sun, Yi Hsin Liu, Hui Chen, Manuel P. Nguyen, Yuji Mishina, Jeffrey S. Upperman, Henri R. Ford, Wei Shi

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


BMP signaling plays important roles in many embryonic developmental processes. Alk3 is one of two BMP type I receptors that transduces BMP signal from the cell surface into cell. Conventional knockout of Alk3 resulted in early embryonic lethality around E7.5-E9.5. In this study, we have generated embryonic mesoderm-specific Alk3 conditional knockout by crossing Dermo1-Cre and floxed Alk3 mice. Abrogation of Alk3-mediated BMP signaling in this mouse resulted in severe defect of secondary ventral body wall formation, replicating the omphalocele phenotype in human. Our finding suggests that Alk3 plays an essential role in the formation of embryonic ventral abdominal wall, and abrogation of BMP signaling activity due to gene mutations in its signaling components could be one of the underlying causes of omphalocele at birth.

Original languageEnglish (US)
Pages (from-to)238-243
Number of pages6
JournalBiochemical and biophysical research communications
Issue number1
StatePublished - Aug 17 2007
Externally publishedYes


  • Alk3
  • BMP
  • Omphalocele
  • Ventral body wall

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology


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