2017
Inhibiting DNA methylation activates cancer testis antigens and expression of the antigen processing and presentation machinery in colon and ovarian cancer cells
Siebenkäs C, Chiappinelli KB, Guzzetta AA, Sharma A, Jeschke J, Vatapalli R, Baylin SB, Ahuja N. Inhibiting DNA methylation activates cancer testis antigens and expression of the antigen processing and presentation machinery in colon and ovarian cancer cells. PLOS ONE 2017, 12: e0179501. PMID: 28622390, PMCID: PMC5473589, DOI: 10.1371/journal.pone.0179501.Peer-Reviewed Original ResearchConceptsSubset of patientsOvarian cancer cell linesAntigen processingCancer cell linesImmune therapyCancer testisSolid tumorsCell linesCancer cellsCancer-testis antigensHost immune systemOvarian cancer cellsTreatment time pointsEpigenetic therapyRelevant low dosesPresentation machineryImmune cellsOvarian cancerAntigen presentationMurine modelTestis antigensInnovative therapiesImmune systemLow dosesTherapyHypomethylating agents synergize with irinotecan to improve response to chemotherapy in colorectal cancer cells
Sharma A, Vatapalli R, Abdelfatah E, McMahon K, Kerner Z, Guzzetta A, Singh J, Zahnow C, Baylin S, Yerram S, Hu Y, Azad N, Ahuja N. Hypomethylating agents synergize with irinotecan to improve response to chemotherapy in colorectal cancer cells. PLOS ONE 2017, 12: e0176139. PMID: 28445481, PMCID: PMC5405959, DOI: 10.1371/journal.pone.0176139.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntineoplastic AgentsATP-Binding Cassette TransportersAzacitidineCaco-2 CellsCamptothecinCell AdhesionCell Line, TumorCell ProliferationColorectal NeoplasmsDNA MethylationDNA RepairGene ExpressionGene Expression ProfilingHCT116 CellsHumansIrinotecanLong Interspersed Nucleotide ElementsMiceMice, Inbred NODMice, SCIDConceptsCRC cell linesColorectal cancerMultiple CRC cell linesPhase 1/2 clinical trialCell linesMetastatic colorectal cancerMajority of patientsNOD-SCID miceColorectal cancer cellsSoft agar assayInitial therapyMetastatic settingCytotoxic chemotherapyCRC treatmentClinical efficacyCancer deathTumor regressionClinical trialsDNA demethylating agentVivo xenograftsChemotherapeutic agentsCancer cellsHCT116 cell linesAgar assayChemotherapyDifferential expression of hENT1 and hENT2 in colon cancer cell lines
Liu Y, Zuo T, Zhu X, Ahuja N, Fu T. Differential expression of hENT1 and hENT2 in colon cancer cell lines. Genetics And Molecular Research 2017, 16 PMID: 28218790, DOI: 10.4238/gmr16019549.Peer-Reviewed Original ResearchConceptsColon cancer cell linesCancer cell linesMetastatic CRCColorectal cancerHENT1 expressionCell linesHigh hENT1 expressionLow hENT1 expressionMetastatic colorectal cancerNucleoside analoguesHuman equilibrative nucleoside transporter 1Equilibrative nucleoside transporter 1Real-time polymerase chain reactionDrug-based treatmentQuantitative real-time polymerase chain reactionHuman colon cancer cell linesNucleoside transporter 1Clinical responseMost patientsMetastatic cell linesMetastatic sitesMetastatic tumorsTransporter expression profilesPolymerase chain reactionDifferent drug responses
2009
Methylation of TFPI2 in Stool DNA: A Potential Novel Biomarker for the Detection of Colorectal Cancer
Glöckner S, Dhir M, Yi JM, McGarvey KE, Van Neste L, Louwagie J, Chan TA, Kleeberger W, de Bruïne A, Smits KM, Bakker C, Jonkers DM, Stockbrügger R, Meijer GA, Oort FA, Iacobuzio-Donahue C, Bierau K, Herman JG, Baylin SB, Van Engeland M, Schuebel KE, Ahuja N. Methylation of TFPI2 in Stool DNA: A Potential Novel Biomarker for the Detection of Colorectal Cancer. Cancer Research 2009, 69: 4691-4699. PMID: 19435926, PMCID: PMC3062162, DOI: 10.1158/0008-5472.can-08-0142.Peer-Reviewed Original ResearchConceptsTissue factor pathway inhibitor-2Colorectal cancerStool DNATFPI2 methylationStage INonmetastatic colorectal cancerHuman colorectal cancerPotential novel biomarkersCRC patientsNoncancer controlsColorectal carcinogenesisNovel biomarkersUseful adjunctPotential tumor suppressor geneNoninvasive strategyTumor suppressor geneEarly detectionAberrant DNA methylationPatientsFrequent eventCancerAberrant methylationSuppressor geneBiomarkers
2008
Abnormal DNA Methylation of CD133 in Colorectal and Glioblastoma Tumors
Yi JM, Tsai HC, Glöckner S, Lin S, Ohm JE, Easwaran H, James CD, Costello JF, Riggins G, Eberhart CG, Laterra J, Vescovi AL, Ahuja N, Herman JG, Schuebel KE, Baylin SB. Abnormal DNA Methylation of CD133 in Colorectal and Glioblastoma Tumors. Cancer Research 2008, 68: 8094-8103. PMID: 18829568, PMCID: PMC2744404, DOI: 10.1158/0008-5472.can-07-6208.Peer-Reviewed Original ResearchMeSH KeywordsAC133 AntigenAnimalsAntigens, CDAntineoplastic AgentsAzacitidineBrain NeoplasmsCaco-2 CellsCarcinomaColorectal NeoplasmsDecitabineDNA (Cytosine-5-)-MethyltransferasesDNA MethylationFemaleGene DeletionGene Expression Regulation, NeoplasticGlioblastomaGlycoproteinsHCT116 CellsHT29 CellsHumansMiceMice, NudePeptidesTumor Cells, CulturedXenograft Model Antitumor AssaysConceptsDNA methylationMethylation patternsPromoter DNA methylation patternsHistone modification marksDNA methylation patternsDNA methylation changesDNA methylation statusPromoter CpG islandsAberrant DNA methylationAbnormal DNA methylationCultured colon cancerStem-like cell populationTranscription stateModification marksPromoter signaturesCpG islandsSuch methylationIndividual cell linesMethylation changesAberrant genesDifferentiated progenyMethylationMarker proteinsMethylation statusGenes
1999
Methylation and silencing of the Thrombospondin-1 promoter in human cancer
Li Q, Ahuja N, Burger P, Issa J. Methylation and silencing of the Thrombospondin-1 promoter in human cancer. Oncogene 1999, 18: 3284-3289. PMID: 10359534, DOI: 10.1038/sj.onc.1202663.Peer-Reviewed Original ResearchConceptsGlioblastoma multiformeTHBS1 expressionThrombospondin-1De novo methylationHuman cancersCell linesPrimary glioblastoma multiformeMethylation-associated inactivationNovo methylationCpG islandsPrimary tumorCpG sitesAngiogenesis inhibitorsTHBS1 methylationMethylation statusMolecular defectsHuman neoplasmsMethylationHuman tumorsDetectable expressionCancerTumorsExpressionCommon featureSilencing