Tissue-specific responses to aberrant FGF signaling in complex head phenotypes

Neus Martínez-Abadías, Susan M. Motch, Talia L. Pankratz, Yingli Wang, Kristina Aldridge, Ethylin Wang Jabs, Joan T. Richtsmeier

Research output: Contribution to journalArticle

Abstract

Background: The role of fibroblast growth factor and receptor (FGF/FGFR) signaling in bone development is well studied, partly because mutations in FGFRs cause human diseases of achondroplasia and FGFR-related craniosynostosis syndromes including Crouzon syndrome. The FGFR2c C342Y mutation is a frequent cause of Crouzon syndrome, characterized by premature cranial vault suture closure, midfacial deficiency, and neurocranial dysmorphology. Here, using newborn Fgfr2cC342Y/+ Crouzon syndrome mice, we tested whether the phenotypic effects of this mutation go beyond the skeletal tissues of the skull, altering the development of other non-skeletal head tissues including the brain, the eyes, the nasopharynx, and the inner ears. Results: Quantitative analysis of 3D multimodal imaging (high-resolution micro-computed tomography and magnetic resonance microscopy) revealed local differences in skull morphology and coronal suture patency between Fgfr2cC342Y/+ mice and unaffected littermates, as well as changes in brain shape but not brain size, significant reductions in nasopharyngeal and eye volumes, and no difference in inner ear volume in Fgfr2cC342Y/+ mice. Conclusions: These findings provide an expanded catalogue of clinical phenotypes in Crouzon syndrome caused by aberrant FGF/FGFR signaling and evidence of the broad role for FGF/FGFR signaling in development and evolution of the vertebrate head.

Original languageEnglish (US)
Pages (from-to)80-94
Number of pages15
JournalDevelopmental Dynamics
Volume242
Issue number1
DOIs
StatePublished - Jan 2013
Externally publishedYes

Fingerprint

Craniofacial Dysostosis
Head
Phenotype
Inner Ear
Skull
Mutation
Brain
Receptor, Fibroblast Growth Factor, Type 2
Cranial Sutures
Multimodal Imaging
Achondroplasia
Fibroblast Growth Factor Receptors
Craniosynostoses
Nasopharynx
Bone Development
Sutures
Vertebrates
Microscopy
Magnetic Resonance Spectroscopy
Tomography

Keywords

  • Brain
  • Craniosynostosis
  • Crouzon syndrome
  • Eye
  • FGFR2
  • Inner ear
  • Nasopharynx
  • Pfeiffer syndrome
  • Skull

ASJC Scopus subject areas

  • Developmental Biology

Cite this

Martínez-Abadías, N., Motch, S. M., Pankratz, T. L., Wang, Y., Aldridge, K., Jabs, E. W., & Richtsmeier, J. T. (2013). Tissue-specific responses to aberrant FGF signaling in complex head phenotypes. Developmental Dynamics, 242(1), 80-94. https://doi.org/10.1002/dvdy.23903

Tissue-specific responses to aberrant FGF signaling in complex head phenotypes. / Martínez-Abadías, Neus; Motch, Susan M.; Pankratz, Talia L.; Wang, Yingli; Aldridge, Kristina; Jabs, Ethylin Wang; Richtsmeier, Joan T.

In: Developmental Dynamics, Vol. 242, No. 1, 01.2013, p. 80-94.

Research output: Contribution to journalArticle

Martínez-Abadías, N, Motch, SM, Pankratz, TL, Wang, Y, Aldridge, K, Jabs, EW & Richtsmeier, JT 2013, 'Tissue-specific responses to aberrant FGF signaling in complex head phenotypes', Developmental Dynamics, vol. 242, no. 1, pp. 80-94. https://doi.org/10.1002/dvdy.23903
Martínez-Abadías N, Motch SM, Pankratz TL, Wang Y, Aldridge K, Jabs EW et al. Tissue-specific responses to aberrant FGF signaling in complex head phenotypes. Developmental Dynamics. 2013 Jan;242(1):80-94. https://doi.org/10.1002/dvdy.23903
Martínez-Abadías, Neus ; Motch, Susan M. ; Pankratz, Talia L. ; Wang, Yingli ; Aldridge, Kristina ; Jabs, Ethylin Wang ; Richtsmeier, Joan T. / Tissue-specific responses to aberrant FGF signaling in complex head phenotypes. In: Developmental Dynamics. 2013 ; Vol. 242, No. 1. pp. 80-94.
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