2022
Brain metastatic outgrowth and osimertinib resistance are potentiated by RhoA in EGFR-mutant lung cancer
Adua S, Arnal-Estapé A, Zhao M, Qi B, Liu Z, Kravitz C, Hulme H, Strittmatter N, López-Giráldez F, Chande S, Albert A, Melnick M, Hu B, Politi K, Chiang V, Colclough N, Goodwin R, Cross D, Smith P, Nguyen D. Brain metastatic outgrowth and osimertinib resistance are potentiated by RhoA in EGFR-mutant lung cancer. Nature Communications 2022, 13: 7690. PMID: 36509758, PMCID: PMC9744876, DOI: 10.1038/s41467-022-34889-z.Peer-Reviewed Original ResearchConceptsGene expression programsRas homolog family member ACancer cellsFamily member AEpidermal growth factor receptorExpression programsMetastatic cancer cellsSRF signalingGrowth factor receptorTumor microenvironmentLung cancerFunctional linkExtracellular lamininDrug-resistant cancer cellsMutant non-small cell lung cancerNon-small cell lung cancerCentral nervous system relapseMolecular studiesMember AEGFR-mutant lung cancerFactor receptorNervous system relapseCell lung cancerDisseminated tumor cellsBrain tumor microenvironment
2021
Tumor DNA Mutations From Intraparenchymal Brain Metastases Are Detectable in CSF
Cheok SK, Narayan A, Arnal-Estape A, Gettinger S, Goldberg SB, Kluger HM, Nguyen D, Patel A, Chiang V. Tumor DNA Mutations From Intraparenchymal Brain Metastases Are Detectable in CSF. JCO Precision Oncology 2021, 5: 163-172. PMID: 34250381, PMCID: PMC8232069, DOI: 10.1200/po.20.00292.Peer-Reviewed Original ResearchConceptsIntraparenchymal brain metastasesBrain metastasesCell-free DNAExtracranial tumorsBrain metastasis tissuesProgressive brain metastasesThird of patientsNormal pressure hydrocephalusTumor DNA mutationsPrimary cancer typeAnalysis of CSFSamples of CSFLeptomeningeal diseaseEffective surrogate markerBrain biopsyPressure hydrocephalusLumbar punctureSurrogate markerCancer-associated genesMetastasis tissuesPatientsMetastasisDiscordant responsesRenal cellsGenomic profiling
2018
BRAF V600 Mutation and BRAF Kinase Inhibitors in Conjunction With Stereotactic Radiosurgery for Intracranial Melanoma Metastases: A Multicenter Retrospective Study
Mastorakos P, Xu Z, Yu J, Hess J, Qian J, Chatrath A, Taylor DG, Kondziolka D, Warnick R, Chiang V, Sheehan J. BRAF V600 Mutation and BRAF Kinase Inhibitors in Conjunction With Stereotactic Radiosurgery for Intracranial Melanoma Metastases: A Multicenter Retrospective Study. Neurosurgery 2018, 84: 868-880. PMID: 29846702, PMCID: PMC6505443, DOI: 10.1093/neuros/nyy203.Peer-Reviewed Original ResearchConceptsMelanoma brain metastasesBrain metastasesBRAF inhibitorsStereotactic radiosurgeryBRAF mutationsIntracerebral hematomaDiagnosis of BMEffects of BRAFiMulticenter retrospective cohort studyIntracranial melanoma metastasesPD-1 inhibitorsMulticenter retrospective studyRetrospective cohort studyKaplan-Meier methodologyPositive prognostic factorBRAF V600 mutationBRAF mutation statusBRAF kinase inhibitorsMultivariate regression analysisWild-type BRAFCohort studyHazard ratioMedian survivalIndependent predictorsPrognostic factors
2017
The Prognostic Value of BRAF, C-KIT, and NRAS Mutations in Melanoma Patients With Brain Metastases
Sperduto PW, Jiang W, Brown PD, Braunstein S, Sneed P, Wattson DA, Shih HA, Bangdiwala A, Shanley R, Lockney NA, Beal K, Lou E, Amatruda T, Sperduto WA, Kirkpatrick JP, Yeh N, Gaspar LE, Molitoris JK, Masucci L, Roberge D, Yu J, Chiang V, Mehta M. The Prognostic Value of BRAF, C-KIT, and NRAS Mutations in Melanoma Patients With Brain Metastases. International Journal Of Radiation Oncology • Biology • Physics 2017, 98: 1069-1077. PMID: 28721890, PMCID: PMC6925531, DOI: 10.1016/j.ijrobp.2017.03.030.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntineoplastic AgentsBrain NeoplasmsFemaleGenes, rasHumansImmunotherapyLinear ModelsMaleMelanomaMiddle AgedMolecular Targeted TherapyMutationPrognosisProportional Hazards ModelsProto-Oncogene Proteins B-rafProto-Oncogene Proteins c-kitRetrospective StudiesStatistics, NonparametricTime FactorsConceptsBRAF-negative patientsBRAF-positive patientsBrain metastasesMedian survivalC-kit mutationsMelanoma patientsPrimary diagnosisWhole-brain radiation therapyOverall median survivalMulti-institutional databaseGene mutation statusOverall survivalInitial treatmentMedian timeTreatment patternsClinical parametersBRAF statusPrognostic valueNRAS mutationsRadiation therapyPatientsMutation statusMetastasisC-kitMEK inhibitors
2016
The Effect of Gene Alterations and Tyrosine Kinase Inhibition on Survival and Cause of Death in Patients With Adenocarcinoma of the Lung and Brain Metastases
Sperduto PW, Yang TJ, Beal K, Pan H, Brown PD, Bangdiwala A, Shanley R, Yeh N, Gaspar LE, Braunstein S, Sneed P, Boyle J, Kirkpatrick JP, Mak KS, Shih HA, Engelman A, Roberge D, Arvold ND, Alexander B, Awad MM, Contessa J, Chiang V, Hardie J, Ma D, Lou E, Sperduto W, Mehta MP. The Effect of Gene Alterations and Tyrosine Kinase Inhibition on Survival and Cause of Death in Patients With Adenocarcinoma of the Lung and Brain Metastases. International Journal Of Radiation Oncology • Biology • Physics 2016, 96: 406-413. PMID: 27598807, PMCID: PMC5575932, DOI: 10.1016/j.ijrobp.2016.06.006.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAgedAged, 80 and overAnaplastic Lymphoma KinaseAntineoplastic AgentsBrain NeoplasmsErbB ReceptorsFemaleGenetic MarkersGenetic Predisposition to DiseaseHumansIncidenceLung NeoplasmsMaleMiddle AgedMutationPolymorphism, Single NucleotidePrevalenceProtein-Tyrosine KinasesReceptor Protein-Tyrosine KinasesRetrospective StudiesRisk FactorsSurvival RateUnited StatesConceptsTyrosine kinase inhibitionBrain metastasesMedian survivalCause of deathGene alterationsDiagnosis of BMMulti-institutional retrospective databaseTKI-naïve patientsRisk of deathLonger median survivalKinase inhibitionALK gene alterationsTreatment patternsCancer mortalityLung cancerPrimary diagnosisRetrospective databaseCommon causeLung adenocarcinomaGroup overallPatientsFirst treatmentPrior trialsEGFRMonthsImpact of Deferring Radiation Therapy in Patients With Epidermal Growth Factor Receptor–Mutant Non-Small Cell Lung Cancer Who Develop Brain Metastases
Magnuson WJ, Yeung JT, Guillod PD, Gettinger SN, Yu JB, Chiang VL. Impact of Deferring Radiation Therapy in Patients With Epidermal Growth Factor Receptor–Mutant Non-Small Cell Lung Cancer Who Develop Brain Metastases. International Journal Of Radiation Oncology • Biology • Physics 2016, 95: 673-679. PMID: 27034176, DOI: 10.1016/j.ijrobp.2016.01.037.Peer-Reviewed Original ResearchConceptsWhole-brain radiation therapyUpfront EGFR-TKIIntracranial progression-free survivalUpfront radiation therapyProgression-free survivalBrain metastasesEGFR-TKI groupEGFR-TKIEGFR-mutant NSCLCOverall survivalRadiation therapyEpidermal Growth Factor Receptor–Mutant NonDisease-specific Graded Prognostic AssessmentUpfront EGFR tyrosine kinase inhibitorsEGFR-TKI resistance mutationSmall cell lung cancerEGFR tyrosine kinase inhibitorsEGFR-TKI useMedian overall survivalSimilar overall survivalUpfront RT groupInferior overall survivalCell lung cancerMutant lung adenocarcinomaEpidermal growth factor receptor
2013
A Clinical Model for Identifying Radiosensitive Tumor Genotypes in Non–Small Cell Lung Cancer
Johung KL, Yao X, Li F, Yu JB, Gettinger SN, Goldberg S, Decker RH, Hess JA, Chiang VL, Contessa JN. A Clinical Model for Identifying Radiosensitive Tumor Genotypes in Non–Small Cell Lung Cancer. Clinical Cancer Research 2013, 19: 5523-5532. PMID: 23897899, DOI: 10.1158/1078-0432.ccr-13-0836.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAnaplastic Lymphoma KinaseAntineoplastic AgentsBrain NeoplasmsCarcinoma, Non-Small-Cell LungErbB ReceptorsFemaleGenotypeHumansLung NeoplasmsMaleMiddle AgedMutationProtein Kinase InhibitorsRadiation ToleranceReceptor Protein-Tyrosine KinasesRecurrenceTranslocation, GeneticTumor BurdenConceptsNon-small cell lung cancerCell lung cancerEML4-ALK translocationGamma knife treatmentLocal controlTumor genotypeLung cancerEGFR mutationsCox proportional hazards modelDistant brain controlDistant brain recurrenceGamma knife radiotherapyEGFR kinase domain mutationsSuperior local controlField local controlKRAS mutation statusProportional hazards modelKinase domain mutationsEGF receptorMetastasis sizeBrain recurrenceBrain metastasesField recurrenceClinical outcomesIndependent predictors