2023
EPCO-22. LONGITUDINAL MOLECULAR CHARACTERIZATION IDENTIFIES TREATMENT DRIVEN EVOLUTION OF OLIGODENDROGLIOMA
Chowdhury T, Johnson K, Kocakavuk E, Heo C, Ye G, Ghospurkar P, Wade T, Barnholtz-Sloan J, Costello J, Elliott C, French P, Golebiewska A, Hermes B, Hong C, Horbinski C, Khasraw M, LaViolette P, Li K, Lipp E, Lowman A, McCortney K, Moon H, Ng H, Padovan M, Paek S, Vallentgoed W, Vaubel R, Wesseling P, Westcott K, Consortium G, Varn F, Verhaak R. EPCO-22. LONGITUDINAL MOLECULAR CHARACTERIZATION IDENTIFIES TREATMENT DRIVEN EVOLUTION OF OLIGODENDROGLIOMA. Neuro-Oncology 2023, 25: v128-v128. PMCID: PMC10639435, DOI: 10.1093/neuonc/noad179.0485.Peer-Reviewed Original ResearchWhole-exome sequencingPI3K pathwaySingle-nucleus RNA sequencingStem-like cellsPatient mortalityChromosome 4 lossPIK3R1 mutationsTreatment resistanceFUBP1 mutationsAggressive phenotypeMost oligodendrogliomasOligodendroglioma patientsChromosome arms 1pRecurrenceAdministration dateSomatic copy number alterationsCopy number alterationsMutational signature analysisOligodendrogliomasRecurrent samplesTERT promoterExome sequencingK pathwayCommon mutationsMolecular changes
2021
Radiotherapy is associated with a deletion signature that contributes to poor outcomes in patients with cancer
Kocakavuk E, Anderson K, Varn F, Johnson K, Amin S, Sulman E, Lolkema M, Barthel F, Verhaak R. Radiotherapy is associated with a deletion signature that contributes to poor outcomes in patients with cancer. Nature Genetics 2021, 53: 1088-1096. PMID: 34045764, PMCID: PMC8483261, DOI: 10.1038/s41588-021-00874-3.Peer-Reviewed Original ResearchConceptsWorse clinical outcomesNon-irradiated tumorsClinical outcomesRecurrent cancerPatient survivalPoor outcomeMetastatic tumorsRecurrent gliomaRadiation therapyRadiation-induced DNA damageDNA damageGlioma Longitudinal Analysis ConsortiumMutational signature analysisCancer treatmentDeletion burdenRadiotherapyMedical FoundationAPOBEC mutagenesisSignificant increaseTumorsCancerDNA damage repairDeletion signatureMutational spectrumSmall deletions