2017
Hypomethylating 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 assayChemotherapyCombination epigenetic therapy in metastatic colorectal cancer (mCRC) with subcutaneous 5-azacitidine and entinostat; a phase 2 consortium/stand Up 2 cancer study
Azad NS, el-Khoueiry A, Yin J, Oberg AL, Flynn P, Adkins D, Sharma A, Weisenberger DJ, Brown T, Medvari P, Jones PA, Easwaran H, Kamel I, Bahary N, Kim G, Picus J, Pitot HC, Erlichman C, Donehower R, Shen H, Laird PW, Piekarz R, Baylin S, Ahuja N. Combination epigenetic therapy in metastatic colorectal cancer (mCRC) with subcutaneous 5-azacitidine and entinostat; a phase 2 consortium/stand Up 2 cancer study. Oncotarget 2017, 5: 35326-35338. PMID: 28186961, PMCID: PMC5471058, DOI: 10.18632/oncotarget.15108.Peer-Reviewed Original ResearchConceptsCombination epigenetic therapyMetastatic colorectal cancerRECIST responseCRC patientsMedian progression-free survivalCycles of therapySignificant clinical activityMetastatic CRC patientsProgression-free survivalSubset of patientsM2 days 1Serial tumor biopsiesMulti-institutional studyHistone deacetylase inhibitor entinostatEpigenetic therapyColorectal cell linesSubcutaneous azacitidinePrimary endpointPrior therapyLiver involvementOverall survivalTolerable therapySerial biopsiesColorectal cancerClinical activityDifferential 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
2012
A pressure cooking-based DNA extraction from archival formalin-fixed, paraffin-embedded tissue
Chung JY, Yi JM, Xie R, Brown V, Lee O, Ahuja N, Braunschweig T, Hewitt SM. A pressure cooking-based DNA extraction from archival formalin-fixed, paraffin-embedded tissue. Analytical Biochemistry 2012, 425: 128-134. PMID: 22449494, PMCID: PMC3358925, DOI: 10.1016/j.ab.2012.03.012.Peer-Reviewed Original Research
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