Genomic approaches to diagnose rare bone disorders

Area of Science:

• Genetics
• Molecular Biology
• Medical Diagnostics

Background:

• Skeletal dysplasias are Mendelian disorders affecting approximately 1 in 5000 individuals.
• Clinical and radiological findings aid diagnosis, but genetic complexity poses challenges.
• Genetic heterogeneity means multiple genes can cause similar phenotypes, and single genes can lead to diverse conditions.

Purpose of the Study:

• To review different approaches for achieving molecular diagnoses in skeletal dysplasias.
• To describe the advantages and limitations of various sequencing technologies.
• To provide an overview of emerging technologies for future applications.

Main Methods:

• Review of single gene sequencing, next-generation sequencing (NGS) approaches.
• Detailed examination of first, second, and third-generation sequencing technologies.
• Inclusion of whole-exome sequencing (WES), whole-genome sequencing (WGS), and gene panel sequencing.

Main Results:

• Sequencing technologies offer diverse strategies for molecular diagnosis of skeletal dysplasias.
• Each sequencing generation presents unique advantages and limitations regarding cost, speed, and data output.
• Next-generation sequencing (NGS) provides comprehensive genomic insights.

Conclusions:

• Molecular diagnosis of skeletal dysplasias is facilitated by a range of advanced sequencing methods.
• Choosing the appropriate sequencing strategy is crucial for efficient and accurate diagnosis.
• Emerging technologies promise further advancements in diagnosing these complex genetic disorders.