Cited by 108Craniofacial Disorders and Treatmentsdental development and anomaliesGenomics and Rare Diseases

Isolated sagittal and coronal craniosynostosis associated with TWIST box mutations

Seto, Marianne L., Hing, Anne V., Chang, Jocelyn, Hu, Ming, Kapp‐Simon, Kathleen A., Patel, Pravin K., Burton, Barbara K., Kane, Alex A. +6 more·2007·American Journal of Medical Genetics Part A

Abstract

Craniosynostosis, the premature fusion of one or more cranial sutures, affects 1 in 2,500 live births. Isolated single‐suture fusion is most prevalent, with sagittal synostosis occurring in 1/5,000 live births. The etiology of isolated (nonsyndromic) single‐suture craniosynostosis is largely unknown. In syndromic craniosynostosis, there is a highly nonrandom pattern of causative autosomal dominant mutations involving TWIST1 and fibroblast growth factor receptors (FGFRs). Prior to our study, there were no published TWIST1 mutations in the anti‐osteogenic C‐terminus, recently coined the TWIST Box, which binds and inhibits RUNX2 transactivation. RUNX2 is the principal master switch for osteogenesis. We performed mutational analysis on 164 infants with isolated, single‐suture craniosynostosis for mutations in TWIST1, the IgIIIa exon of FGFR1, the IgIIIa and IgIIIc exons of FGFR2, and the Pro250Arg site of FGFR3. We identified two patients with novel TWIST Box mutations: one with isolated sagittal synostosis and one with isolated coronal synostosis. Kress et al. [2006] reported a TWIST Box “nondisease‐causing polymorphism” in a patient with isolated sagittal synostosis. However, compelling evidence suggests that their and our sequence alterations are pathogenic: (1) a mouse with a mutation of the same residue as our sagittal synostosis patient developed sagittal synostosis, (2) mutation of the same residue precluded TWIST1 interaction with RUNX2, (3) each mutation involved nonconservative amino acid substitutions in highly conserved residues across species, and (4) control chromosomes lacked TWIST Box sequence alterations. We suggest that genetic testing of patients with isolated sagittal or coronal synostosis should include TWIST1 mutational analysis. © 2007 Wiley‐Liss, Inc.

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Crossref · 10.1002/ajmg.a.31630

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  • No genotype-phenotype correlation is described for Saethre-Chotzen syndrome, except that large deletions are associated with learning disability and occasional C-terminal Twist box missense mutations may confer increased risk of a more non-specific synostosis phenotype with unknown penetrance.

    “No genotype-phenotype correlation is described, except that large deletions are associated with learning disability (not generally a feature of Saethre-Chotzen syndrome), 26,27 and occasional missense mutations in the C-terminal Twist box apparently confer increased risk of a more non-specific synostosis phenotype (with unknown penetrance).28”

    From Craniosynostosis (2011) · cites this paper as [28]

  • Variants in TWIST1, FGFR1, and FGFR2 have been described in sCS, although each accounts for only a minor proportion of cases.

    “Variants in TWIST1, FGFR1, and FGFR2 have been described, although each accounts for only a minor proportion of cases [62, 98, 120].”

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Authors
Seto, M. L., Hing, A. V., Chang, J., Hu, M., Kapp‐Simon, K. A., Patel, P. K., Burton, B. K., Kane, A. A., Smyth, M. D., Hopper, R., Ellenbogen, R. G., Stevenson, K., Speltz, M. L., & Cunningham, M. L.
Affiliations
  • University of Washington (US)
  • Seattle Children's Hospital (US)
  • Northwestern University (US)
  • Washington University in St. Louis (US)
  • Children's Healthcare of Atlanta (US)
Corresponding author
Seto, Marianne L.
Venue
American Journal of Medical Genetics Part A
Publisher
Wiley
Published
2007-03-07
Volume
143A
Issue
7
Pages
678-686
ISSN
  • 1552-4825 (ISSN-L)
  • 1552-4833
OpenAlex
W1972462110
Cited by
108
References
50
Citations by year
2026: 2 · 2025: 1 · 2024: 3 · 2023: 5 · 2022: 3 · 2021: 4 · 2020: 5 · 2019: 7 · 2018: 4 · 2017: 4 · 2016: 6 · 2015: 7 · 2014: 6 · 2013: 7 · 2012: 9
FWCI
3.75
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Medical Genetics Part A (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Dental and Craniofacial Research (R01- DE 13813, R01DE013813)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Craniofacial Disorders and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › dental development and anomalies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
craniosynostosis, TWIST1, FGFR1, FGFR2, FGFR3, Runx2, bone formation, nonsyndromic craniosynostosis, genetic testing, mouse model
MeSH terms
Amino Acid Sequence, Animals, Binding Sites, Craniosynostoses, Humans, Infant, Molecular Sequence Data, Nuclear Proteins, Point Mutation, Protein Structure, Tertiary, Core Binding Factor Alpha 1 Subunit, Twist-Related Protein 1

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