Genome-wide Analyses of Non-Syndromic Cleft Lip With Palate Identify 14 Novel Loci and Genetic Heterogeneity

Nat Commun. 2017 Feb 24;8:14364. doi: 10.1038/ncomms14364.

Abstract

Non-syndromic cleft lip with palate (NSCLP) is the most serious sub-phenotype of non-syndromic orofacial clefts (NSOFC), which are the most common craniofacial birth defects in humans. Here we conduct a GWAS of NSCLP with multiple independent replications, totalling 7,404 NSOFC cases and 16,059 controls from several ethnicities, to identify new NSCLP risk loci, and explore the genetic heterogeneity between sub-phenotypes of NSOFC. We identify 41 SNPs within 26 loci that achieve genome-wide significance, 14 of which are novel (RAD54B, TMEM19, KRT18, WNT9B, GSC/DICER1, PTCH1, RPS26, OFCC1/TFAP2A, TAF1B, FGF10, MSX1, LINC00640, FGFR1 and SPRY1). These 26 loci collectively account for 10.94% of the heritability for NSCLP in Chinese population. We find evidence of genetic heterogeneity between the sub-phenotypes of NSOFC and among different populations. This study substantially increases the number of genetic susceptibility loci for NSCLP and provides important insights into the genetic aetiology of this common craniofacial malformation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Age Factors
  • Asian Continental Ancestry Group / ethnology
  • Asian Continental Ancestry Group / genetics
  • Case-Control Studies
  • Cleft Lip / ethnology
  • Cleft Lip / genetics*
  • Cleft Palate / ethnology
  • Cleft Palate / genetics*
  • Cohort Studies
  • Female
  • Genetic Loci / genetics*
  • Genetic Predisposition to Disease*
  • Genome-Wide Association Study
  • Genotyping Techniques
  • Humans
  • Male
  • Polymorphism, Single Nucleotide
  • Sex Factors