2022
Spectrum of qualitative and quantitative imaging of pilomyxoid, intermediate pilomyxoid and pilocytic astrocytomas in relation to their genetic alterations
Fadel SA, von Reppert M, Kazarian E, Omay EZE, Marks A, Linder N, Hoffmann KT, Darbinyan A, Huttner A, Aboian MS. Spectrum of qualitative and quantitative imaging of pilomyxoid, intermediate pilomyxoid and pilocytic astrocytomas in relation to their genetic alterations. Neuroradiology 2022, 65: 195-205. PMID: 35984480, DOI: 10.1007/s00234-022-03027-3.Peer-Reviewed Original ResearchConceptsPilocytic astrocytomaImaging characteristicsADC valuesAggressive imaging characteristicsSuprasellar pilocytic astrocytomaRecurrence/progressionPediatric brain tumorsFrontal white matterWhole-exome sequencingPilomyxoid astrocytomaIntraventricular extensionSuprasellar regionThird ventriclePosterior fossaAtypical locationBrain tumorsWhite matterGrade 1TumorsAstrocytomasDriver mutationsExome sequencingGenetic alterationsPatientsHippocampus
2021
Dual activating FGFR1 mutations in pediatric pilomyxoid astrocytoma
Fomchenko EI, Reeves BC, Sullivan W, Marks AM, Huttner A, Kahle KT, Erson‐Omay E. Dual activating FGFR1 mutations in pediatric pilomyxoid astrocytoma. Molecular Genetics & Genomic Medicine 2021, 9: e1597. PMID: 33448156, PMCID: PMC8077124, DOI: 10.1002/mgg3.1597.Peer-Reviewed Original ResearchConceptsPilomyxoid astrocytomaPediatric patientsVariant allele frequencyHypothalamic/chiasmatic regionPathologic tissue diagnosisTreatment-related morbidityHigh recurrence ratePI3K/mTOR inhibitionYears of ageExome sequencing resultsSimilar time pointsWhole exome sequencing resultsHypothalamic dysfunctionClinical presentationSurgical managementRecurrence rateShorter survivalAggressive subtypeVision lossChiasmatic regionTissue diagnosisPatient tumorsRadiation therapyFGFR inhibitorsFGFR1 mutations
2020
Persistent STAG2 mutation despite multimodal therapy in recurrent pediatric glioblastoma
Hong CS, Vasquez JC, Kundishora AJ, Elsamadicy AA, Beckta JM, Sule A, Marks AM, Leelatian N, Huttner A, Bindra RS, DiLuna ML, Kahle KT, Erson-Omay EZ. Persistent STAG2 mutation despite multimodal therapy in recurrent pediatric glioblastoma. Npj Genomic Medicine 2020, 5: 23. PMID: 32528726, PMCID: PMC7264170, DOI: 10.1038/s41525-020-0130-7.Peer-Reviewed Original ResearchPediatric patientsStandard chemoradiationSTAG2 mutationsTumor clonesPediatric glioblastomaGross total resectionMultiple surgical resectionsTime of recurrenceHigh-grade gliomasDNA damage repair defectsWhole-exome sequencingVariety of treatmentsSurgical resectionNovel deleterious mutationsStandard therapyTotal resectionVaccine therapyClinical evidencePreclinical dataTreatment optionsMultimodal therapyPreclinical studiesClinical settingTherapyAdult counterparts
2019
Genomic alterations underlying spinal metastases in pediatric H3K27M-mutant pineal parenchymal tumor of intermediate differentiation: case report.
Fomchenko EI, Erson-Omay EZ, Kundishora AJ, Hong CS, Daniel AA, Allocco A, Duy PQ, Darbinyan A, Marks AM, DiLuna ML, Kahle KT, Huttner A. Genomic alterations underlying spinal metastases in pediatric H3K27M-mutant pineal parenchymal tumor of intermediate differentiation: case report. Journal Of Neurosurgery Pediatrics 2019, 25: 121-130. PMID: 31653819, DOI: 10.3171/2019.8.peds18664.Peer-Reviewed Original ResearchPineal parenchymal tumorsPediatric midline gliomasWhole-exome sequencingH3K27M mutationParenchymal tumorsIntermediate differentiationMidline gliomaM mutationClonality analysisTumors harbored mutationsHigh-grade lesionsCurative surgical optionVaried morphological appearancesChromosome 17 lossSomatic mutationsSpinal metastasesClinical presentationDismal prognosisSpine metastasesSurgical managementSurgical optionsMidline tumorsCase reportHarbored mutationsNF1 lossHGG-01. ACQUISITION OF A HYPERMUTATOR PHENOTYPE UNDERLYING DISTANT SPINAL INTRAMEDULLARY SPREAD IN HISTONE-MUTATED DIFFUSE MIDLINE GLIOMA
Hong C, Kundishora A, Fomchenko E, Huttner A, Erson-Omay Z, Marks A, Diluna M, Kahle K. HGG-01. ACQUISITION OF A HYPERMUTATOR PHENOTYPE UNDERLYING DISTANT SPINAL INTRAMEDULLARY SPREAD IN HISTONE-MUTATED DIFFUSE MIDLINE GLIOMA. Neuro-Oncology 2019, 21: ii86-ii86. PMCID: PMC6477387, DOI: 10.1093/neuonc/noz036.095.Peer-Reviewed Original ResearchIntramedullary spinal metastasesDiffuse midline gliomaMidline gliomaWhole-exome sequencingSpinal metastasesKey oncogenic driver mutationsSomatic mutationsExome sequencingLower extremity weaknessDistant metastatic spreadHigh-grade astrocytic tumorsGenetic alterationsOncogenic driver mutationsSpinal metastatic lesionsProton beam radiationThirteen-year-old maleSpinal intramedullaryExtremity weaknessDistant spreadMetastatic lesionsLumbar tumorsPineal lesionsPoor prognosisTumor spreadPineal tumors
2018
PDTM-35. GENETIC ALTERATIONS DRIVING SPINAL INTRAMEDULLARY METASTASES OF A HISTONE-MUTATED DIFFUSE MIDLINE PINEAL GLIOMA
Hong C, Kundishora A, Omay E, Huttner A, Marks A, Diluna M, Kahle K. PDTM-35. GENETIC ALTERATIONS DRIVING SPINAL INTRAMEDULLARY METASTASES OF A HISTONE-MUTATED DIFFUSE MIDLINE PINEAL GLIOMA. Neuro-Oncology 2018, 20: vi211-vi211. PMCID: PMC6217703, DOI: 10.1093/neuonc/noy148.875.Peer-Reviewed Original ResearchDiffuse midline gliomaMidline gliomaH3K27M mutationGenetic alterationsM mutationIntramedullary spinal metastasesSpinal intramedullary metastasisDistant metastatic spreadLower extremity weaknessMismatch repair gene mutationsKey driver mutationsRepair gene mutationsProton beam radiationWhole-exome sequencingResponse to the BRAF/MEK inhibitors dabrafenib/trametinib in an adolescent with a BRAF V600E mutated anaplastic ganglioglioma intolerant to vemurafenib
Marks AM, Bindra RS, DiLuna ML, Huttner A, Jairam V, Kahle KT, Kieran MW. Response to the BRAF/MEK inhibitors dabrafenib/trametinib in an adolescent with a BRAF V600E mutated anaplastic ganglioglioma intolerant to vemurafenib. Pediatric Blood & Cancer 2018, 65: e26969. PMID: 29380516, DOI: 10.1002/pbc.26969.Peer-Reviewed Original ResearchConceptsAnaplastic gangliogliomaBRAF/MEK inhibitor combinationsBRAF V600ESubsequent tumor responseDabrafenib/trametinibLarge clinical trialsSquamous cell carcinomaMEK inhibitor combinationsSignificant side effectsSignificant skin reactionsCell carcinomaCase reportSkin reactionsTumor responseClinical trialsBrain tumorsInhibitor combinationsSide effectsAdolescent femalesGangliogliomaTrametinibPrevious reactionsV600EMonotherapyRash
2017
SOX2 immunity and tissue resident memory in children and young adults with glioma
Vasquez JC, Huttner A, Zhang L, Marks A, Chan A, Baehring JM, Kahle KT, Dhodapkar KM. SOX2 immunity and tissue resident memory in children and young adults with glioma. Journal Of Neuro-Oncology 2017, 134: 41-53. PMID: 28620836, PMCID: PMC7906294, DOI: 10.1007/s11060-017-2515-8.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAge FactorsAntigen-Presenting CellsB7-H1 AntigenBrain NeoplasmsCell ProliferationChildChild, PreschoolCytokinesFemaleFlow CytometryGliomaHumansInfantMaleMyeloid CellsProgrammed Cell Death 1 ReceptorReceptors, ImmunologicRNA, Small InterferingSOXB1 Transcription FactorsT-LymphocytesTransfectionYoung AdultConceptsPediatric glial tumorsGlial tumorsT cellsExpression of SOX2Inhibitory checkpointsCD8/CD4 T cellsTissue-resident memory phenotypeTumor-infiltrating immune cellsTumor-infiltrating T cellsTumor cellsYoung adultsResident memory phenotypeTissue-resident memoryAnti-tumor immunityT cell immunityCD4 T cellsNatural killer cellsGlial tumor cellsNew antigenic targetsSingle-cell mass cytometryHigh mutation burdenStem cell antigenGlioma initiating cellsImmune checkpointsPD-1SOX2 as a target for immunotherapy of pediatric gliomas.
Vasquez J, Huttner A, Zhang L, Marks A, Chan A, Baehring J, Kahle K, Dhodapkar K. SOX2 as a target for immunotherapy of pediatric gliomas. Journal Of Clinical Oncology 2017, 35: e22012-e22012. DOI: 10.1200/jco.2017.35.15_suppl.e22012.Peer-Reviewed Original ResearchTumor-infiltrating T cellsImmune checkpoint blockadeT cellsPediatric glial tumorsGlial tumorsExpression of SOX2Inhibitory checkpointsCheckpoint blockadeTumor immunityGrade gliomasTissue-resident memory phenotypePediatric gliomasTumor-infiltrating immune cellsTumor cellsResident memory phenotypeT-cell proliferation assaysImmune checkpoint inhibitorsDendritic cell vaccinesPD-1 expressionSubset of CD4Anti-tumor immunityCD8 T cellsT cell immunityEffective tumor immunityPediatric brain tumors