Planar cell polarity gene mutations contribute to the etiology of human neural tube defects in our population

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Neural Tube Defects (NTDs) are congenital malformations that involve failure of the neural tube closure during the early phases of development at any level of the rostro-caudal axis. The planar cell polarity (PCP) pathway is a highly conserved, noncanonical Wnt-Frizzled-Dishevelled signaling cascade, that was first identified in the fruit fly Drosophila. We are here reviewing the role of the PCP pathway genes in the etiology of human NTDs, updating the list of the rare and deleterious mutations identified so far. We report 50 rare nonsynonymous mutations of PCP genes in 54 patients having a pathogenic effect on the protein function. Thirteen mutations that have previously been reported as novel are now reported in public databases, although at very low frequencies. The mutations were private, mostly missense, and transmitted by a healthy parent. To date, no clear genotype-phenotype correlation has been possible to create. Even if PCP pathway genes are involved in the pathogenesis of neural tube defects, future studies will be necessary to better dissect the genetic causes underlying these complex malformations. Birth Defects Research (Part A), 100:633-641, 2014.

Original languageEnglish
Pages (from-to)633-641
Number of pages9
JournalBirth Defects Research Part A - Clinical and Molecular Teratology
Issue number8
Publication statusPublished - 2014


  • CELSR1 gene
  • FUZZY gene
  • FZD3 and FZD6 genes
  • LRP6 gene
  • Neural tube defects (NTDs)
  • Planar cell polarity pathway (PCP)
  • PRICKLE gene
  • VANGL1 and VANGL2 genes

ASJC Scopus subject areas

  • Developmental Biology
  • Pediatrics, Perinatology, and Child Health
  • Embryology
  • Medicine(all)


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