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
2019
Implication of DNA repair genes in Lynch-like syndrome
Xicola RM, Clark JR, Carroll T, Alvikas J, Marwaha P, Regan MR, Lopez-Giraldez F, Choi J, Emmadi R, Alagiozian-Angelova V, Kupfer SS, Ellis NA, Llor X. Implication of DNA repair genes in Lynch-like syndrome. Familial Cancer 2019, 18: 331-342. PMID: 30989425, PMCID: PMC6561810, DOI: 10.1007/s10689-019-00128-6.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overColorectal Neoplasms, Hereditary NonpolyposisDNA MethylationDNA Mismatch RepairDNA-Binding ProteinsFemaleGerm-Line MutationHeterozygoteHumansMaleMicrosatellite InstabilityMiddle AgedMismatch Repair Endonuclease PMS2MutL Protein Homolog 1MutS Homolog 2 ProteinSequence Analysis, DNAConceptsLLS patientsDistinct mutational signaturesGenome integrityLynch syndromeMutational signaturesMicrosatellite instabilityGermline mutationsColorectal cancerSequence analysisRepair genesSomatic MMR gene mutationsLS casesConsecutive CRC patientsMutational profileSomatic mutationsLynch-like syndromeL mutationMMR gene mutationsDNA repair genesFirst-degree relativesLikely pathogenic variantsSingle nucleotide variantsMLH1 promoter methylationTumor mutational profileExhibit microsatellite instability
2018
Colorectal cancer molecular classification using BRAF, KRAS, microsatellite instability and CIMP status: Prognostic implications and response to chemotherapy
Murcia O, Juárez M, Rodríguez-Soler M, Hernández-Illán E, Giner-Calabuig M, Alustiza M, Egoavil C, Castillejo A, Alenda C, Barberá V, Mangas-Sanjuan C, Yuste A, Bujanda L, Clofent J, Andreu M, Castells A, Llor X, Zapater P, Jover R. Colorectal cancer molecular classification using BRAF, KRAS, microsatellite instability and CIMP status: Prognostic implications and response to chemotherapy. PLOS ONE 2018, 13: e0203051. PMID: 30188916, PMCID: PMC6126803, DOI: 10.1371/journal.pone.0203051.Peer-Reviewed Original ResearchConceptsDisease-free survivalColorectal cancerMicrosatellite instabilityCIMP statusTNM stageKRAS mutationsBRAF mutationsMSS tumorsMolecular classificationAdvanced stage IIRetrospective observational studyPopulation-based cohortCpG island methylator phenotype (CIMP) statusCancer molecular classificationSomatic KRASAdjuvant chemotherapyAdjuvant treatmentCRC patientsPrognostic implicationsWorse prognosisPrognostic valueClinical criteriaObservational studyMolecular subtypesMAIN OUTCOMEColorectal cancer molecular classification using BRAF, KRAS, microsatellite instability, and CIMP status: Prognostic implications and response to chemotherapy.
Murcia O, Juárez M, Hernández-Illán E, Rodriguez-Soler M, Giner-Calabuig M, Alustiza M, Egoavil C, Castillejo A, Alenda C, Mangas C, Barberá V, Yuste A, Bujanda L, Clofent J, Andreu M, Castells A, Llor X, Zapater P, Jover R. Colorectal cancer molecular classification using BRAF, KRAS, microsatellite instability, and CIMP status: Prognostic implications and response to chemotherapy. Journal Of Clinical Oncology 2018, 36: 668-668. DOI: 10.1200/jco.2018.36.4_suppl.668.Peer-Reviewed Original ResearchDisease-free survivalColorectal cancerMicrosatellite instabilityCIMP statusTNM stageKRAS mutationsBRAF mutationsMSS tumorsMolecular classificationAdvanced stage IIRetrospective observational studyPopulation-based cohortCpG island methylator phenotype (CIMP) statusCancer molecular classificationSomatic KRASAdjuvant chemotherapyAdjuvant treatmentCRC patientsWorse prognosisPrognostic implicationsPrognostic valueClinical criteriaObservational studyMolecular subtypesMAIN OUTCOME
2016
A meta-analysis of MSI frequency and race in colorectal cancer
Ashktorab H, Ahuja S, Kannan L, Llor X, Ellis NA, Xicola RM, Laiyemo AO, Carethers JM, Brim H, Nouraie M. A meta-analysis of MSI frequency and race in colorectal cancer. Oncotarget 2016, 7: 34546-34557. PMID: 27120810, PMCID: PMC5085175, DOI: 10.18632/oncotarget.8945.Peer-Reviewed Original ResearchConceptsColorectal cancerMSI frequencyMicrosatellite instabilityAfrican AmericansAssociation of raceSub-group analysisMeta-regression analysisAvailable race dataClinical factorsTumor locationHigh riskMSI ratesDifferent literature databasesLiterature databasesRacial disparitiesCancerCaucasiansHispanicsDifferent studiesCaucasian samplesRandom effectsUnivariate effectsHigh frequencyRace data
2014
Excess of Proximal Microsatellite-Stable Colorectal Cancer in African Americans from a Multiethnic Study
Xicola RM, Gagnon M, Clark JR, Carroll T, Gao W, Fernandez C, Mijic D, Rawson JB, Janoski A, Pusatcioglu CK, Rajaram P, Gluskin AB, Regan M, Chaudhry V, Abcarian H, Blumetti J, Cintron J, Melson J, Xie H, Guzman G, Emmadi R, Alagiozian-Angelova V, Kupfer SS, Braunschweig C, Ellis NA, Llor X. Excess of Proximal Microsatellite-Stable Colorectal Cancer in African Americans from a Multiethnic Study. Clinical Cancer Research 2014, 20: 4962-4970. PMID: 25013126, PMCID: PMC4167473, DOI: 10.1158/1078-0432.ccr-14-0353.Peer-Reviewed Original ResearchConceptsProximal colorectal cancerColorectal cancerMicrosatellite instabilityLymphocytic infiltrateKRAS mutationsAfrican AmericansMicrosatellite stable colorectal cancerDistal colorectal cancerFisher's exact testMicrosatellite stable tumorsMann-Whitney U testYoung African AmericansMedian ageAA patientsHigher BMICancer disparitiesChicago HospitalsStable tumorsAge 50High incidenceMultiethnic StudyExact testYounger ageCancerOlder age
2013
Risk of Cancer in Cases of Suspected Lynch Syndrome Without Germline Mutation
Rodríguez–Soler M, Pérez–Carbonell L, Guarinos C, Zapater P, Castillejo A, Barberá VM, Juárez M, Bessa X, Xicola RM, Clofent J, Bujanda L, Balaguer F, Reñé J, de–Castro L, Marín–Gabriel J, Lanas A, Cubiella J, Nicolás–Pérez D, Brea–Fernández A, Castellví–Bel S, Alenda C, Ruiz–Ponte C, Carracedo A, Castells A, Andreu M, Llor X, Soto JL, Payá A, Jover R. Risk of Cancer in Cases of Suspected Lynch Syndrome Without Germline Mutation. Gastroenterology 2013, 144: 926-932.e1. PMID: 23354017, DOI: 10.1053/j.gastro.2013.01.044.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAdultAgedAged, 80 and overColorectal Neoplasms, Hereditary NonpolyposisDNA Mismatch RepairDNA RepairDNA, NeoplasmFemaleGerm-Line MutationHumansImmunohistochemistryIncidenceMaleMicrosatellite InstabilityMiddle AgedMutL Protein Homolog 1Nuclear ProteinsPopulation SurveillanceRisk FactorsSpainConceptsLynch-like syndromeSex-adjusted standardized incidence ratiosFamilies of patientsRisk of cancerIncidence of CRCLynch syndromePathogenic germline mutationsMicrosatellite instabilityGermline mutationsSporadic CRCStandardized incidence ratiosLoss of PMS2Population-based cohortMLH1 promoter hypermethylationLoss of MLH1Loss of MSH2Clinical characteristicsConsecutive patientsIncidence ratiosMSH6 expressionImmunohistochemical analysisPatientsMLH1 promoterSyndromeSurveillance strategies
2011
Colorectal Cancers with Microsatellite Instability Display Unique miRNA Profiles
Balaguer F, Moreira L, Lozano JJ, Link A, Ramirez G, Shen Y, Cuatrecasas M, Arnold M, Meltzer SJ, Syngal S, Stoffel E, Jover R, Llor X, Castells A, Boland CR, Gironella M, Goel A. Colorectal Cancers with Microsatellite Instability Display Unique miRNA Profiles. Clinical Cancer Research 2011, 17: 6239-6249. PMID: 21844009, PMCID: PMC3186834, DOI: 10.1158/1078-0432.ccr-11-1424.Peer-Reviewed Original ResearchConceptsColorectal cancerTypes of MSIMicrosatellite instabilityMiRNA expression profilesUnique miRNA profileCRC tissuesNormal colonic mucosa tissuesSporadic MSI tumorsColonic mucosa tissuesMSS colorectal cancerLynch syndrome tumorsNormal colonic mucosaSporadic microsatellite instabilityMiRNA profilesMSI-positive samplesNormal colonic tissueUnique miRNA expression profilesExpression profilesQuantitative reverse transcriptase PCRReverse transcriptase-PCRDistinct miRNA expression profilesColonic mucosaLynch syndromeColonic tissueColorectal carcinogenesisEvidence for classification of c.1852_1853AA>GC in MLH1 as a neutral variant for Lynch syndrome
Castillejo A, Guarinos C, Martinez-Canto A, Barbera VM, Egoavil C, Castillejo MI, Perez-Carbonell L, Sanchez-Heras AB, Segura A, Ochoa E, Lazaro R, Ruiz-Ponte C, Bujanda L, Andreu M, Castells A, Carracedo A, Llor X, Clofent J, Alenda C, Paya A, Jover R, Soto JL. Evidence for classification of c.1852_1853AA>GC in MLH1 as a neutral variant for Lynch syndrome. BMC Medical Genomics 2011, 12: 12. PMID: 21247423, PMCID: PMC3034663, DOI: 10.1186/1471-2350-12-12.Peer-Reviewed Original ResearchConceptsMicrosatellite instabilityLS familiesAmsterdam II criteriaPathogenic mutationsCase-case studyEarly-onset cancersCase-control comparisonBackgroundLynch syndromeCRC probandsHereditary CRCTumor DNA samplesCRC patientsSporadic CRCLS patientsClinical managementLynch syndromeClinical significanceOnset cancerCancer syndromesPositive casesMononucleotide markersControl populationPathogenic variantsSignificant associationMSH6 gene
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 phenotypeAberrant DNA Methylation in Hereditary Nonpolyposis Colorectal Cancer Without Mismatch Repair Deficiency
Goel A, Xicola RM, Nguyen T, Doyle BJ, Sohn VR, Bandipalliam P, Rozek LS, Reyes J, Cordero C, Balaguer F, Castells A, Jover R, Andreu M, Syngal S, Boland CR, Llor X. Aberrant DNA Methylation in Hereditary Nonpolyposis Colorectal Cancer Without Mismatch Repair Deficiency. Gastroenterology 2010, 138: 1854-1862.e1. PMID: 20102720, PMCID: PMC2859993, DOI: 10.1053/j.gastro.2010.01.035.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAdultAgedAged, 80 and overBase SequenceBasic Helix-Loop-Helix Transcription FactorsColorectal Neoplasms, Hereditary NonpolyposisCore Binding Factor Alpha 3 SubunitDNA MethylationDNA Mismatch RepairEpigenesis, GeneticFemaleGene Expression Regulation, NeoplasticGenetic Predisposition to DiseaseGenomic InstabilityHumansLong Interspersed Nucleotide ElementsMaleMicrosatellite RepeatsMiddle AgedMolecular Sequence DataMutationMutL Protein Homolog 1Nerve Tissue ProteinsNuclear ProteinsPedigreePhenotypeProto-Oncogene ProteinsProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)Ras ProteinsSpainSuppressor of Cytokine Signaling 1 ProteinSuppressor of Cytokine Signaling ProteinsUnited StatesConceptsHereditary nonpolyposis colorectal cancerNonpolyposis colorectal cancerHNPCC tumorsMismatch repair deficiencyColorectal cancerMicrosatellite instabilityGermline mismatch repair (MMR) gene mutationsLynch syndrome cancersMismatch repair gene mutationsRepair deficiencyBest diagnostic approachBRAF mutation statusRepair gene mutationsSporadic microsatellite instabilityV600E BRAF mutationLINE-1 methylationSyndrome cancersAmsterdam criteriaLynch syndromeKRAS mutationsTreatment responseBRAF mutationsHigh indexTumor behaviorCarcinogenic pathways
2008
Comparison of predictive models, clinical criteria and molecular tumour screening for the identification of patients with Lynch syndrome in a population-based cohort of colorectal cancer patients
Balmaña J, Balaguer F, Castellví-Bel S, Steyerberg EW, Andreu M, Llor X, Jover R, Castells A, Syngal S, Association F. Comparison of predictive models, clinical criteria and molecular tumour screening for the identification of patients with Lynch syndrome in a population-based cohort of colorectal cancer patients. Journal Of Medical Genetics 2008, 45: 557. PMID: 18603628, DOI: 10.1136/jmg.2008.059311.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAdultAgedAged, 80 and overCohort StudiesColorectal NeoplasmsColorectal Neoplasms, Hereditary NonpolyposisDNA Mutational AnalysisFemaleGenetic Carrier ScreeningGenetic TestingHeterozygoteHumansMaleMiddle AgedModels, GeneticMutL Protein Homolog 1MutS Homolog 2 ProteinNuclear ProteinsConceptsMLH1/MSH2 mutation carriersPositive predictive valueMSH2 mutation carriersMutation carriersMMR deficiencyClinical criteriaMismatch repair gene mutationsAmsterdam II criteriaColorectal cancer patientsIdentification of patientsPopulation-based cohortOverall discriminative abilityColorectal cancer cohortRepair gene mutationsGermline testingCRC patientsBethesda guidelinesCancer patientsLynch syndromeCancer cohortPredictive scorePredictive valueSimilar AUCMicrosatellite instabilityObserved prevalence
2007
Performance of Different Microsatellite Marker Panels for Detection of Mismatch Repair–Deficient Colorectal Tumors
Xicola RM, Llor X, Pons E, Castells A, Alenda C, Piñol V, Andreu M, Castellví-Bel S, Payá A, Jover R, Bessa X, Girós A, Duque JM, Nicolás-Pérez D, Garcia AM, Rigau J, Gassull MA. Performance of Different Microsatellite Marker Panels for Detection of Mismatch Repair–Deficient Colorectal Tumors. Journal Of The National Cancer Institute 2007, 99: 244-252. PMID: 17284719, DOI: 10.1093/jnci/djk033.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAdenosine TriphosphatasesAgedBiomarkers, TumorCarrier ProteinsCohort StudiesColorectal NeoplasmsDNA Mismatch RepairDNA Repair EnzymesDNA-Binding ProteinsFemaleGene Expression Regulation, NeoplasticHumansImmunohistochemistryMaleMicrosatellite InstabilityMicrosatellite RepeatsMismatch Repair Endonuclease PMS2MutL Protein Homolog 1MutS Homolog 2 ProteinNeoplasm ProteinsNuclear ProteinsPolymerase Chain ReactionPredictive Value of TestsSensitivity and SpecificitySpain
2005
Differential Features of Colorectal Cancers Fulfilling Amsterdam Criteria without Involvement of the Mutator Pathway
Llor X, Pons E, Xicola RM, Castells A, Alenda C, Piñol V, Andreu M, Castellví-Bel S, Payá A, Jover R, Bessa X, Girós A, Roca A, Gassull MA, Association F. Differential Features of Colorectal Cancers Fulfilling Amsterdam Criteria without Involvement of the Mutator Pathway. Clinical Cancer Research 2005, 11: 7304-7310. PMID: 16243801, DOI: 10.1158/1078-0432.ccr-05-0965.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAgedAged, 80 and overCarrier ProteinsCohort StudiesColorectal NeoplasmsColorectal Neoplasms, Hereditary NonpolyposisDNA Mutational AnalysisDNA-Binding ProteinsFemaleGerm-Line MutationHumansImmunohistochemistryMaleMicrosatellite RepeatsMiddle AgedMutationMutL Protein Homolog 1MutS Homolog 2 ProteinNuclear ProteinsProspective StudiesSpainConceptsHereditary nonpolyposis colorectal cancerHNPCC patientsAmsterdam criteriaColorectal cancerPathway alterationsMicrosatellite instabilityMetachronous adenomatous polypsLeft-sided tumorsMismatch repair gene mutationsAmsterdam II criteriaColorectal cancer patientsNonpolyposis colorectal cancerRepair gene mutationsMismatch repair deficiencyDetailed family historyMMR alterationsEndometrial cancerLymphocytic infiltratePathologic dataCancer patientsFamily historyAdenomatous polypsHNPCC familiesPatientsTumor DNAAccuracy of Revised Bethesda Guidelines, Microsatellite Instability, and Immunohistochemistry for the Identification of Patients With Hereditary Nonpolyposis Colorectal Cancer
Piñol V, Castells A, Andreu M, Castellví-Bel S, Alenda C, Llor X, Xicola RM, Rodríguez-Moranta F, Payá A, Jover R, Bessa X, Association F. Accuracy of Revised Bethesda Guidelines, Microsatellite Instability, and Immunohistochemistry for the Identification of Patients With Hereditary Nonpolyposis Colorectal Cancer. JAMA 2005, 293: 1986-1994. PMID: 15855432, DOI: 10.1001/jama.293.16.1986.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAgedCarrier ProteinsChromosomal InstabilityColorectal Neoplasms, Hereditary NonpolyposisCost-Benefit AnalysisDNA Mutational AnalysisDNA-Binding ProteinsFemaleGenetic Carrier ScreeningGenetic TestingGerm-Line MutationGuidelines as TopicHeterozygoteHumansImmunohistochemistryMaleMicrosatellite RepeatsMiddle AgedMutL Protein Homolog 1MutS Homolog 2 ProteinNeoplasm ProteinsNuclear ProteinsPredictive Value of TestsProspective StudiesProto-Oncogene ProteinsSensitivity and SpecificitySpainConceptsMicrosatellite instability testingBethesda guidelinesMLH1 germline mutationsInstability testingMicrosatellite instabilityGermline testingColorectal cancerGermline mutationsHereditary nonpolyposis colorectal cancerRevised Bethesda GuidelinesProtein expressionIdentification of patientsLogistic regression analysisNonpolyposis colorectal cancerMismatch repair deficiencyNational Cancer InstituteCancer genetic testingTumor characteristicsClinical parametersFamily historyNationwide studyIdentification of individualsCancer InstitutePatientsGenetic testing