Burden of rare deleterious variants in WNT signaling genes among 511 myelomeningocele patients.

Published online

Journal Article

Genes in the noncanonical WNT signaling pathway controlling planar cell polarity have been linked to the neural tube defect myelomeningocele. We hypothesized that some genes in the WNT signaling network have a higher mutational burden in myelomeningocele subjects than in reference subjects in gnomAD. Exome sequencing data from 511 myelomeningocele subjects was obtained in-house and data from 29,940 ethnically matched subjects was provided by version 2 of the publicly available Genome Aggregation Database. To compare mutational burden, we collapsed rare deleterious variants across each of 523 human WNT signaling genes in case and reference populations. Ten WNT signaling genes were disrupted with a higher mutational burden among Mexican American myelomeningocele subjects compared to reference subjects (Fishers exact test, P ≤ 0.05) and seven different genes were disrupted among individuals of European ancestry compared to reference subjects. Gene ontology enrichment analyses indicate that genes disrupted only in the Mexican American population play a role in planar cell polarity whereas genes identified in both populations are important for the regulation of canonical WNT signaling. In summary, evidence for WNT signaling genes that may contribute to myelomeningocele in humans is presented and discussed.

Full Text

Duke Authors

Cited Authors

  • Hebert, L; Hillman, P; Baker, C; Brown, M; Ashley-Koch, A; Hixson, JE; Morrison, AC; Northrup, H; Au, KS

Published Date

  • 2020

Published In

Volume / Issue

  • 15 / 9

Start / End Page

  • e0239083 -

PubMed ID

  • 32970752

Pubmed Central ID

  • 32970752

Electronic International Standard Serial Number (EISSN)

  • 1932-6203

Digital Object Identifier (DOI)

  • 10.1371/journal.pone.0239083

Language

  • eng

Conference Location

  • United States