Crouzon syndrome: Genetic and intervention review

Area of Science:

• Genetics
• Molecular Biology
• Developmental Biology

Background:

• Crouzon syndrome presents significant phenotypic variability.
• Fibroblast Growth Factor Receptor 2 (FGFR2) gene mutations are key etiological factors.
• FGFR2 signaling pathways regulate cell differentiation, proliferation, and apoptosis.

Purpose of the Study:

• To review the genetic basis and molecular pathology of Crouzon syndrome.
• To elucidate factors contributing to phenotypic severity.
• To present a strategic approach for genetic diagnosis and management.

Main Methods:

• Literature review of fundamental and recent scientific publications.
• Analysis of genetic and molecular mechanisms underlying Crouzon syndrome.
• Synthesis of information for a diagnostic and management strategy.

Main Results:

• FGFR2 mutations disrupt FGFs/FGFR2 signaling, causing craniofacial defects.
• The molecular factors influencing Crouzon syndrome severity remain largely unknown.
• A graduated strategy for genetic approach, diagnosis, and management is proposed.

Conclusions:

• Understanding Crouzon syndrome's molecular pathology is crucial for improved genetic counseling, diagnosis, prognosis, and early intervention.
• Further research into cellular and molecular factors is needed to address phenotypic heterogeneity.
• This review provides a framework for managing this complex craniofacial defect.