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Developing a scoring system for gene curation prioritization in lysosomal diseases.

Matheus Vernet Machado Bressan Wilke1, Jennifer Goldstein2, Emily Groopman3

  • 1Department of Pathology and Immunology, Washington University in St. Louis, MO, United States of America.

Molecular Genetics and Metabolism
|September 12, 2024
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Summary
This summary is machine-generated.

A new scoring system, the Lysosomal Disease Scoring System (LDSS), helps prioritize genes for diagnosing lysosomal diseases (LD). This tool aids in identifying genes for genetic testing panels and understanding LD definitions.

Keywords:
ClinGenGeneticsLysosomal diseasesLysosomal storage diseases

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Area of Science:

  • Genetics
  • Molecular Biology
  • Medical Diagnostics

Background:

  • Lysosomal diseases (LD) cause multisystemic issues and require accurate diagnosis.
  • Genetic testing is increasingly vital for LD diagnosis.
  • Expanding gene lists necessitate evaluating gene validity for diagnostic panels.

Purpose of the Study:

  • To develop a scoring system (LDSS) for defining and prioritizing genes associated with lysosomal diseases.
  • To aid in clinical validity curation and suitability assessment for LD-targeted sequencing panels.

Main Methods:

  • Literature review identified 14 criteria for LD definition, grouped into 'Overall Definition,' 'Phenotype,' and 'Pathophysiology.'
  • Criteria were weighted and refined by expert evaluation into 'major' and 'minor' categories.
  • The LDSS was validated on known LDs and tested against the Lysosomal Disease Network's gene list.

Main Results:

  • The LDSS includes 4 major and 10 minor criteria, with a defined cutoff for LD classification.
  • Four genes associated with LD were identified that were not on the official LDN list.
  • Some non-classic LD genes received lower scores, suggesting they may not be suitable for LD-specific panels.

Conclusions:

  • The LDSS provides a systematic method for prioritizing genes for clinical validity assessment, improving curation efficiency.
  • This scoring system aids in defining LD and offers a flexible framework for future research and discoveries.