ArticleNeuro-oncology advances
Discovery of genetic susceptibility variants in pediatric and adult ependymoma.
Article in Neuro-oncology advances. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Ependymoma is a malignancy of the neuroepithelium-derived ependyma that lines the spinal cord and ventricles of the brain, occurring most frequently in young children and older adults. Genetic susceptibility to ependymoma has proven difficult to assess due to disease rarity. Methods: We performed genome-wide association studies (GWAS) of 478 ependymoma patients and 4,841 disease-free controls of European ancestry. Ependymoma patients consisted of 117 children (<18 years old) with whole-genome sequencing (WGS), 142 children with genotyping, and 219 adults (≥18 years old) with genotyping. Genotyped samples were imputed using the 1,000 Genomes Project as the reference panel and underwent quality control filtering. The GWAS was performed separately by age group and technology (genotyped or WGS). GWAS variants were considered significant at Results: Among pediatric subjects with WGS data, we identified a significant intronic variant in Conclusion: Our analysis represents one of the most extensive ependymoma-specific GWAS conducted to date. Several significant intronic variants were harbored in genes associated with cancer and neurological disease. Future studies are needed to investigate the role of these age-specific alterations in ependymoma pathogenesis.
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