TERT Promoter Mutations but not the Alternative Lengthening of Telomeres Phenotype Are Present in a Subset of Ependymomas and Are Associated With Adult Onset and Progression to Ependymosarcoma.

Abstract excerpt

Genetic signatures related to telomere maintenance have emerged as powerful classifiers among CNS tumors. These include the alternative lengthening of telomeres (ALT) phenotype associated with mutations in the ATRX and DAXX genes and recurrent point mutations in the TERT gene promoter. We investigated a patient cohort covering the entire spectrum of childhood and adult ependymomas (n = 128), including...

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