2023
Molecular and Sociodemographic Colorectal Cancer Disparities in Latinos Living in Puerto Rico
Perez-Mayoral J, Gonzalez-Pons M, Centeno-Girona H, Montes-Rodríguez I, Soto-Salgado M, Suárez B, Rodríguez N, Colón G, Sevilla J, Jorge D, Llor X, Xicola R, Toro D, Tous-López L, Torres-Torres M, Reyes J, López-Acevedo N, Goel A, Rodríguez-Quilichini S, Cruz-Correa M. Molecular and Sociodemographic Colorectal Cancer Disparities in Latinos Living in Puerto Rico. Genes 2023, 14: 894. PMID: 37107652, PMCID: PMC10138302, DOI: 10.3390/genes14040894.Peer-Reviewed Original ResearchConceptsEarly-onset colorectal cancerColorectal cancerCpG island methylator phenotypeMicrosatellite instabilityExact testColorectal cancer disparitiesSporadic colorectal cancerFisher's exact testMolecular carcinogenic pathwaysClinicopathologic featuresClinicopathological characteristicsCancer deathCancer disparitiesColorectal tumorsCarcinogenic pathwaysHispanic menMutation statusTumorsAdditional studiesMethylator phenotypeHispanic subpopulationsChi-squaredAmerindian admixtureMolecular pathwaysMolecular markers
2017
Tu1974 Molecular Disparities and Kras Mutational Spectrum of Colorectal Tumors from Puerto Rican Hispanic Subjects
Marquez J, Pérez-Mayoral J, Gonzalez-Pons M, Rodriguez-Mañon N, Rivera-Lynch C, Soto M, Llor X, Xicola R, Lopez L, Torres-Torres M, Reyes J, Goel A, Torres-Cintrón C, Rodriguez-Quilichini S, Cruz-Correa M. Tu1974 Molecular Disparities and Kras Mutational Spectrum of Colorectal Tumors from Puerto Rican Hispanic Subjects. Gastroenterology 2017, 152: s1022. DOI: 10.1016/s0016-5085(17)33461-3.Peer-Reviewed Original Research
2014
Multiple Sporadic Colorectal Cancers Display a Unique Methylation Phenotype
Gonzalo V, Lozano JJ, Alonso-Espinaco V, Moreira L, Muñoz J, Pellisé M, Castellví-Bel S, Bessa X, Andreu M, Xicola RM, Llor X, Ruiz-Ponte C, Carracedo A, Jover R, Castells A, Balaguer F, . Multiple Sporadic Colorectal Cancers Display a Unique Methylation Phenotype. PLOS ONE 2014, 9: e91033. PMID: 24643221, PMCID: PMC3958343, DOI: 10.1371/journal.pone.0091033.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overColorectal NeoplasmsCpG IslandsDNA MethylationEpigenesis, GeneticFemaleGene Expression Regulation, NeoplasticGenome-Wide Association StudyGenotypeHumansMaleMiddle AgedNeoplasms, Multiple PrimaryPhenotypeProto-Oncogene ProteinsProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)Ras ProteinsConceptsMultiple colorectal cancersColorectal cancerSporadic colorectal cancerMultiple tumorsCpG island methylator phenotypeSolitary tumorTumor multiplicityMismatch repair deficiency statusSynchronous colorectal cancerMethylation phenotypeCIMP-high tumorsDNA methylation profilingDNA hypermethylationBRAF mutationsDeficiency statusSignificant DNA hypermethylationTumorsTumor samplesMethylation profilingMethyLight assayTumor pairsMethylator phenotypeCpG sitesFunctional annotation clusteringPatients
2010
5-Fluorouracil Adjuvant Chemotherapy Does Not Increase Survival in Patients With CpG Island Methylator Phenotype Colorectal Cancer
Jover R, Nguyen T, Pérez–Carbonell L, Zapater P, Payá A, Alenda C, Rojas E, Cubiella J, Balaguer F, Morillas JD, Clofent J, Bujanda L, Reñé JM, Bessa X, Xicola RM, Nicolás–Pérez D, Castells A, Andreu M, Llor X, Boland CR, Goel A. 5-Fluorouracil Adjuvant Chemotherapy Does Not Increase Survival in Patients With CpG Island Methylator Phenotype Colorectal Cancer. Gastroenterology 2010, 140: 1174-1181. PMID: 21185836, PMCID: PMC3073650, DOI: 10.1053/j.gastro.2010.12.035.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAntimetabolites, AntineoplasticChemotherapy, AdjuvantCohort StudiesColorectal NeoplasmsCpG IslandsDisease-Free SurvivalDNA MethylationFemaleFluorouracilFollow-Up StudiesHumansKaplan-Meier EstimateMaleMiddle AgedPhenotypePredictive Value of TestsPrognosisProportional Hazards ModelsConceptsCpG island methylator phenotypeCIMP-positive tumorsAdjuvant chemotherapyColorectal cancerCIMP statusColorectal tumorsIndependent predictorsStage IITNM stage IIDisease-free survivalOnly independent predictorPopulation-based cohortResponse of patientsMedian followChemotherapySurvival timePatientsMLH1 promoterMultivariate analysisTumorsAbstractTextMicrosatellite instabilityCIMP-negative tumorsDFSMethylator phenotype
2009
Utility of p16 Immunohistochemistry for the Identification of Lynch Syndrome
Payá A, Alenda C, Pérez-Carbonell L, Rojas E, Soto J, Guillén C, Castillejo A, Barberá V, Carrato A, Castells A, Llor X, Andreu M, Koh J, Enders GH, Benlloch S, Jover R. Utility of p16 Immunohistochemistry for the Identification of Lynch Syndrome. Clinical Cancer Research 2009, 15: 3156-3162. PMID: 19383812, PMCID: PMC2825754, DOI: 10.1158/1078-0432.ccr-08-3116.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingColorectal Neoplasms, Hereditary NonpolyposisCyclin-Dependent Kinase Inhibitor p16DNA MethylationEpigenesis, GeneticFemaleGerm-Line MutationHumansImmunoenzyme TechniquesMaleMiddle AgedMutL Protein Homolog 1Neoplasm ProteinsNuclear ProteinsPrognosisProto-Oncogene Proteins B-rafConceptsP16 immunohistochemistryLynch syndromeP16 expressionGermline mutationsMLH1 expressionMLH1 methylationGenetic testingSelection of patientsMLH1 germline mutationsGood surrogate markerMajority of tumorsPathogenic germline mutationsBRAF V600E mutationColorectal cancerSurrogate markerReal-time PCRBRAF mutationsMismatch repair proteinsNormal stainingMLH1 promoterV600E mutationSignificant associationImmunohistochemistryTumor tissueTumors
2008
The efficacy of adjuvant chemotherapy with 5-fluorouracil in colorectal cancer depends on the mismatch repair status
Jover R, Zapater P, Castells A, Llor X, Andreu M, Cubiella J, Balaguer F, Sempere L, Xicola RM, Bujanda L, Reñé JM, Clofent J, Bessa X, Morillas JD, Nicolás-Pérez D, Pons E, Payá A, Alenda C, Association G. The efficacy of adjuvant chemotherapy with 5-fluorouracil in colorectal cancer depends on the mismatch repair status. European Journal Of Cancer 2008, 45: 365-373. PMID: 18722765, DOI: 10.1016/j.ejca.2008.07.016.Peer-Reviewed Original ResearchConceptsAdjuvant chemotherapyColorectal cancerMMR statusDisease-free survivalCohort of patientsColorectal cancer patientsSurvival of patientsMismatch repair statusMMR-defective tumorsMMR-deficient tumorsMicrosatellite instability analysisMSH2 immunohistochemistryTNM IIOverall survivalCancer patientsChemotherapyPatientsMMR deficiencyMultivariate analysisRepair statusCohortTumorsCancerIndependent effectsSurvival
1999
BRK/Sik expression in the gastrointestinal tract and in colon tumors.
Llor X, Serfas MS, Bie W, Vasioukhin V, Polonskaia M, Derry J, Abbott CM, Tyner AL. BRK/Sik expression in the gastrointestinal tract and in colon tumors. Clinical Cancer Research 1999, 5: 1767-77. PMID: 10430081.Peer-Reviewed Original ResearchConceptsNormal gastrointestinal tractGastrointestinal tractBrk expressionColon tumorsPrimary colon tumorsCell linesAdenocarcinoma cell lineNormal epithelial cellsBRK tyrosine kinaseColon adenocarcinoma cell lineEpithelial tumorsImmunohistochemical assaysColon tumor cell linesTumor cell linesTumor samplesTractTumorsEpithelial cellsColon tumor samplesIntestinal cDNA libraryRNase protection