Isolated sagittal and coronal craniosynostosis associated with TWIST box mutations

Marianne L. Seto, Anne V. Hing, Jocelyn Chang, Ming Hu, Kathleen A. Kapp-Simon, Pravin K. Patel, Barbara K. Burton, Alex A. Kane, Matthew D. Smyth, Richard Hopper, Richard G. Ellenbogen, Kevin Stevenson, Matthew L. Speltz, Michael L. Cunningham

Research output: Contribution to journalArticle

75 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)678-686
Number of pages9
JournalAmerican Journal of Medical Genetics, Part A
Volume143
Issue number7
DOIs
StatePublished - Apr 1 2007

Fingerprint

Craniosynostoses
Mutation
Sutures
Synostosis
Live Birth
Exons
Cranial Sutures
Fibroblast Growth Factor Receptors
Chromosomes, Human, Pair 4
Genetic Testing
Amino Acid Substitution
Osteogenesis
Transcriptional Activation

Keywords

  • Aortic valve stenosis
  • Congenital heart defects
  • Craniosynostosis
  • Isolated sagittal synostosis
  • Isolated unilateral coronal synostosis
  • Non-syndromic single-suture
  • Sex-related asymmetries
  • TWIST box
  • TWIST1

ASJC Scopus subject areas

  • Genetics(clinical)

Cite this

Seto, M. L., Hing, A. V., Chang, J., Hu, M., Kapp-Simon, K. A., Patel, P. K., ... Cunningham, M. L. (2007). Isolated sagittal and coronal craniosynostosis associated with TWIST box mutations. American Journal of Medical Genetics, Part A, 143(7), 678-686. https://doi.org/10.1002/ajmg.a.31630

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.; Smyth, Matthew D.; Hopper, Richard; Ellenbogen, Richard G.; Stevenson, Kevin; Speltz, Matthew L.; Cunningham, Michael L.

In: American Journal of Medical Genetics, Part A, Vol. 143, No. 7, 01.04.2007, p. 678-686.

Research output: Contribution to journalArticle

Seto, ML, Hing, AV, Chang, J, Hu, M, Kapp-Simon, KA, Patel, PK, Burton, BK, Kane, AA, Smyth, MD, Hopper, R, Ellenbogen, RG, Stevenson, K, Speltz, ML & Cunningham, ML 2007, 'Isolated sagittal and coronal craniosynostosis associated with TWIST box mutations', American Journal of Medical Genetics, Part A, vol. 143, no. 7, pp. 678-686. https://doi.org/10.1002/ajmg.a.31630
Seto, Marianne L. ; Hing, Anne V. ; Chang, Jocelyn ; Hu, Ming ; Kapp-Simon, Kathleen A. ; Patel, Pravin K. ; Burton, Barbara K. ; Kane, Alex A. ; Smyth, Matthew D. ; Hopper, Richard ; Ellenbogen, Richard G. ; Stevenson, Kevin ; Speltz, Matthew L. ; Cunningham, Michael L. / Isolated sagittal and coronal craniosynostosis associated with TWIST box mutations. In: American Journal of Medical Genetics, Part A. 2007 ; Vol. 143, No. 7. pp. 678-686.
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