Featured Publications
Somatic POLE mutations cause an ultramutated giant cell high-grade glioma subtype with better prognosis
Erson-Omay EZ, Çağlayan AO, Schultz N, Weinhold N, Omay SB, Özduman K, Köksal Y, Li J, Serin Harmancı A, Clark V, Carrión-Grant G, Baranoski J, Çağlar C, Barak T, Coşkun S, Baran B, Köse D, Sun J, Bakırcıoğlu M, Moliterno Günel J, Pamir MN, Mishra-Gorur K, Bilguvar K, Yasuno K, Vortmeyer A, Huttner AJ, Sander C, Günel M. Somatic POLE mutations cause an ultramutated giant cell high-grade glioma subtype with better prognosis. Neuro-Oncology 2015, 17: 1356-1364. PMID: 25740784, PMCID: PMC4578578, DOI: 10.1093/neuonc/nov027.Peer-Reviewed Original ResearchConceptsHigh-grade gliomasSomatic POLE mutationsPOLE mutationsMalignant high-grade gliomasLonger progression-free survivalProgression-free survivalSomatic mutationsOverall survivalPediatric patientsBetter prognosisClinical featuresImproved prognosisClinical behaviorImmune cellsBizarre cellsAggressive formGlioblastoma multiformeDisease pathophysiologyMolecular subgroupsHomozygous germline mutationGermline mutationsPrognosisGlioma subtypesComprehensive genomic analysisDistinct subgroupsHypermutated phenotype in gliosarcoma of the spinal cord
Hong CS, Kuzmik GA, Kundishora AJ, Elsamadicy AA, Koo AB, McGuone D, Blondin NA, DiLuna ML, Erson-Omay EZ. Hypermutated phenotype in gliosarcoma of the spinal cord. Npj Precision Oncology 2021, 5: 8. PMID: 33580181, PMCID: PMC7881101, DOI: 10.1038/s41698-021-00143-w.Peer-Reviewed Original ResearchSpinal cordWhole-exome sequencingLow-grade brain gliomasVariant of glioblastomaLow-grade gliomasTumor anteriorAdjuvant radiationNeurological deficitsSomatic single nucleotide variationsPoor prognosisGrade gliomasTemozolomide treatmentBrain gliomasGliosarcomaMicrosatellite stabilityCordSomatic mutationsHypermutator phenotypeGliomasComprehensive genetic characterizationGenomic mechanismsSingle nucleotide variationsPhenotypeFirst reportPathway genes
2021
PIK3CA mutation in a case of CTNNB1 mutant sinonasal glomangiopericytoma
Hong C, Khan M, Sukys J, Prasad M, Erson-Omay EZ, Vining E, Omay SB. PIK3CA mutation in a case of CTNNB1 mutant sinonasal glomangiopericytoma. Molecular Case Studies 2021, 8: mcs.a006120. PMID: 34667073, PMCID: PMC8744496, DOI: 10.1101/mcs.a006120.Peer-Reviewed Original ResearchConceptsCase of glomangiopericytomaWhole-exome sequencingInstitutional review board-approved protocolTargeted medical therapyUnderwent surgical resectionPI3K/Akt/mTORWnt/β-cateninAkt/mTORPrimary sinonasal tumorSurgical resectionClinicopathologic characteristicsMedical therapyRare tumorPIK3CA mutationsSinonasal tumorsGlomangiopericytomaTumorsΒ-cateninSomatic mutationsComprehensive genetic characterizationGenomic characterizationMutationsConcurrent dysregulationResectionSinonasal
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 lossDNMT3A co-mutation in an IDH1-mutant glioblastoma
Fomchenko EI, Erson-Omay EZ, Zhao A, Bindra RS, Huttner A, Fulbright RK, Moliterno J. DNMT3A co-mutation in an IDH1-mutant glioblastoma. Molecular Case Studies 2019, 5: a004119. PMID: 31371348, PMCID: PMC6672028, DOI: 10.1101/mcs.a004119.Peer-Reviewed Original ResearchMeSH KeywordsAdultBiomarkers, TumorBrain NeoplasmsDNA (Cytosine-5-)-MethyltransferasesDNA MethylationDNA Methyltransferase 3ADNA Modification MethylasesEpigenesis, GeneticGene Expression ProfilingGene Expression Regulation, NeoplasticGlioblastomaGliomaHumansIsocitrate DehydrogenaseMaleMutationMutation, MissensePromoter Regions, GeneticConceptsIDH1-mutant glioblastomaEpigenetic controlHistone modificationsTranscriptional regulationDNA methylationExpression profilesGlioblastoma biologySomatic mutationsDe novoMutationsMutant glioblastomasTumor landscapeMutational profileTargeted therapeutic approachesGlioblastomaImportant roleMethylationDNMT3ABiologyGliomagenesisMissenseRegulationNovoPrimary brain tumorsTherapeutic approaches
2016
IDH-mutant glioma specific association of rs55705857 located at 8q24.21 involves MYC deregulation
Oktay Y, Ülgen E, Can Ö, Akyerli CB, Yüksel Ş, Erdemgil Y, Durası İ, Henegariu OI, Nanni EP, Selevsek N, Grossmann J, Erson-Omay EZ, Bai H, Gupta M, Lee W, Turcan Ş, Özpınar A, Huse JT, Sav MA, Flanagan A, Günel M, Sezerman OU, Yakıcıer MC, Pamir MN, Özduman K. IDH-mutant glioma specific association of rs55705857 located at 8q24.21 involves MYC deregulation. Scientific Reports 2016, 6: 27569. PMID: 27282637, PMCID: PMC4901315, DOI: 10.1038/srep27569.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAllelesBiomarkers, TumorFemaleGene Expression Regulation, NeoplasticGenetic Association StudiesGenetic Predisposition to DiseaseGliomaHumansIsocitrate DehydrogenaseKaplan-Meier EstimateMaleMiddle AgedMutationNeoplasm GradingNeoplasm ProteinsPolymorphism, Single NucleotideProteomicsProto-Oncogene Proteins c-mycSequence Analysis, RNAConceptsCase-control studySubtype-specific differencesMYC deregulationSystemic cancerCNS tumorsHealthy controlsAllele carriersLC-MS/MS comparisonModulatory effectsCartilaginous tumorsControl studyPositive modulationUnderlying causeGliomasIDH-mutant gliomasObserved associationsGlioma developmentSomatic mutationsDriver genesAssociationRs55705857RNA sequencingMolecular mechanismsSpecific associationMYC promoter