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
2021
xDEEP-MSI: Explainable Bias-Rejecting Microsatellite Instability Deep Learning System in Colorectal Cancer
Bustos A, Payá A, Torrubia A, Jover R, Llor X, Bessa X, Castells A, Carracedo Á, Alenda C. xDEEP-MSI: Explainable Bias-Rejecting Microsatellite Instability Deep Learning System in Colorectal Cancer. Biomolecules 2021, 11: 1786. PMID: 34944430, PMCID: PMC8699085, DOI: 10.3390/biom11121786.Peer-Reviewed Original ResearchAnalysis of Survival Among Adults With Early-Onset Colorectal Cancer in the National Cancer Database
Cheng E, Blackburn HN, Ng K, Spiegelman D, Irwin ML, Ma X, Gross CP, Tabung FK, Giovannucci EL, Kunz PL, Llor X, Billingsley K, Meyerhardt JA, Ahuja N, Fuchs CS. Analysis of Survival Among Adults With Early-Onset Colorectal Cancer in the National Cancer Database. JAMA Network Open 2021, 4: e2112539. PMID: 34132794, PMCID: PMC8209612, DOI: 10.1001/jamanetworkopen.2021.12539.Peer-Reviewed Original ResearchConceptsEarly-onset colorectal cancerOnset colorectal cancerNational Cancer DatabaseColorectal cancerAge 51Overall survivalCancer DatabaseIncidence of CRCCox proportional hazards regressionPrimary colorectal cancerKaplan-Meier analysisProportional hazards regressionAge 50 yearsAge 25 yearsAnalysis of survivalCohort studySurvival benefitHazards regressionUnadjusted analysesCancer incidenceMAIN OUTCOMEAge 35Survival advantageLower riskStage IExome sequencing of early-onset patients supports genetic heterogeneity in colorectal cancer
Fernández-Rozadilla C, Álvarez-Barona M, Quintana I, López-Novo A, Amigo J, Cameselle-Teijeiro J, Roman E, Gonzalez D, Llor X, Bujanda L, Bessa X, Jover R, Balaguer F, Castells A, Castellví-Bel S, Capellá G, Carracedo A, Valle L, Ruiz-Ponte C. Exome sequencing of early-onset patients supports genetic heterogeneity in colorectal cancer. Scientific Reports 2021, 11: 11135. PMID: 34045552, PMCID: PMC8159954, DOI: 10.1038/s41598-021-90590-z.Peer-Reviewed Original ResearchMeSH KeywordsAdultColorectal NeoplasmsDNA HelicasesDNA Repair EnzymesDNA-Binding ProteinsExomeExome SequencingFemaleGene Expression Regulation, NeoplasticGenetic HeterogeneityGenetic Predisposition to DiseaseHumansMaleMethyltransferasesMiddle AgedPoly-ADP-Ribose Binding ProteinsProtein Tyrosine Phosphatase, Non-Receptor Type 13ConceptsEarly-onset CRC patientsColorectal cancerCRC patientsEarly-onset patientsGenetic variantsPotential risk allelesCRC onsetYoungest caseCRC developmentIndependent patientsPatientsTruncating variantsRisk allelesExome sequencingNovel genetic variantsRobust studiesTDG geneDisease developmentCandidate variantsCancerMolecular heterogeneityDiseaseComplex diseasesGenetic heterogeneityHigh-impact variantsPhenotypic Differences in Juvenile Polyposis Syndrome With or Without a Disease-causing SMAD4/BMPR1A Variant
MacFarland SP, Ebrahimzadeh JE, Zelley K, Begum L, Bass LM, Brand RE, Dudley B, Fishman DS, Ganzak A, Karloski E, Latham A, Llor X, Plon S, Riordan MK, Scollon SR, Stadler ZK, Syngal S, Ukaegbu C, Weiss JM, Yurgelun MB, Brodeur GM, Mamula P, Katona BW. Phenotypic Differences in Juvenile Polyposis Syndrome With or Without a Disease-causing SMAD4/BMPR1A Variant. Cancer Prevention Research 2021, 14: 215-222. PMID: 33097490, PMCID: PMC8557953, DOI: 10.1158/1940-6207.capr-20-0348.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAge FactorsAgedBone Morphogenetic Protein Receptors, Type IChildChild, PreschoolColectomyColonoscopyFemaleFollow-Up StudiesGerm-Line MutationHumansIntestinal PolyposisMaleMedical History TakingMiddle AgedNeoplastic Syndromes, HereditaryPractice Guidelines as TopicPrecision MedicineSmad4 ProteinWatchful WaitingYoung AdultConceptsJuvenile polyposis syndromePolyposis syndromeFamily historyDisease-causing variantsCancer riskGermline disease-causing variantsGastrointestinal cancer predisposition syndromesUpper gastrointestinal polypsHamartomatous polyposis syndromesCancer predisposition syndromeLifelong surveillanceAdult centersDuodenal polypsGastrointestinal cancerCancer historySubgroup analysisIndividualized managementLower riskGastrointestinal polypsPredisposition syndromeSyndromeYounger ageDistinct phenotypic differencesLower likelihoodGastrectomy
2020
Decreased copy‐neutral loss of heterozygosity in African American colorectal cancers
Augustus GJ, Xicola RM, Llor X, Ellis NA. Decreased copy‐neutral loss of heterozygosity in African American colorectal cancers. Genes Chromosomes And Cancer 2020, 59: 454-464. PMID: 32293075, PMCID: PMC8045478, DOI: 10.1002/gcc.22851.Peer-Reviewed Original Research
2019
Scoring colorectal cancer risk with an artificial neural network based on self-reportable personal health data
Nartowt BJ, Hart GR, Roffman DA, Llor X, Ali I, Muhammad W, Liang Y, Deng J. Scoring colorectal cancer risk with an artificial neural network based on self-reportable personal health data. PLOS ONE 2019, 14: e0221421. PMID: 31437221, PMCID: PMC6705772, DOI: 10.1371/journal.pone.0221421.Peer-Reviewed Original ResearchConceptsNational Health Interview SurveyUnited States Preventative Services Task ForceColorectal cancerPredictive valueDiagnosis of CRCColorectal cancer riskHealth Interview SurveyHigh-risk categoryNegative predictive valuePositive predictive valueMultivariable prediction modelHealth dataUSPSTF guidelinesRisk score methodCRC riskFamily historyCancer riskHigh riskAge 50Individual prognosisLower riskPersonal health dataClinical applicabilityInterview SurveyCancerClinical features and cancer risk in families with pathogenic CDH1 variants irrespective of clinical criteria
Xicola RM, Li S, Rodriguez N, Reinecke P, Karam R, Speare V, Black MH, LaDuca H, Llor X. Clinical features and cancer risk in families with pathogenic CDH1 variants irrespective of clinical criteria. Journal Of Medical Genetics 2019, 56: 838. PMID: 31296550, DOI: 10.1136/jmedgenet-2019-105991.Peer-Reviewed Original ResearchConceptsHereditary diffuse gastric cancerPathogenic variant carriersBreast cancerGastric cancerClinical criteriaCancer riskVariant carriersMultigene panel testingCancer genetics programCancer phenotypePathogenic CDH1 variantsGastric cancer riskBreast cancer familiesDiffuse gastric cancerCancer risk estimationGenotype-phenotype correlationClinical featuresCumulative cancer riskHDGC criteriaCumulative riskAge 80CDH1 variantsPanel testingClinical phenotypePathogenic variantsImplication 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
Lack of APC somatic mutation is associated with early-onset colorectal cancer in African Americans
Xicola RM, Manojlovic Z, Augustus GJ, Kupfer SS, Emmadi R, Alagiozian-Angelova V, Triche T, Salhia B, Carpten J, Llor X, Ellis NA. Lack of APC somatic mutation is associated with early-onset colorectal cancer in African Americans. Carcinogenesis 2018, 39: 1331-1341. PMID: 30239619, PMCID: PMC6292413, DOI: 10.1093/carcin/bgy122.Peer-Reviewed Original ResearchMeSH KeywordsAdenomatous Polyposis Coli ProteinBlack or African AmericanCadherinsColorectal NeoplasmsDNA Copy Number VariationsDNA MethylationDNA-Binding ProteinsExome SequencingFemaleGATA6 Transcription FactorHumansMaleMicrosatellite InstabilityMicrosatellite RepeatsMiddle AgedMixed Function OxygenasesProto-Oncogene ProteinsSOX9 Transcription FactorTranscription FactorsWnt Signaling PathwayColorectal 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 OUTCOME
2017
Race-dependent association of sulfidogenic bacteria with colorectal cancer
Yazici C, Wolf PG, Kim H, Cross TL, Vermillion K, Carroll T, Augustus GJ, Mutlu E, Tussing-Humphreys L, Braunschweig C, Xicola RM, Jung B, Llor X, Ellis NA, Gaskins HR. Race-dependent association of sulfidogenic bacteria with colorectal cancer. Gut 2017, 66: 1983. PMID: 28153960, PMCID: PMC5575988, DOI: 10.1136/gutjnl-2016-313321.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAdultAgedBlack or African AmericanCase-Control StudiesChicagoColonColorectal NeoplasmsDietDietary FatsDietary ProteinsFemaleHealth Status DisparitiesHumansIntestinal MucosaMaleMiddle AgedProspective StudiesReal-Time Polymerase Chain ReactionRisk FactorsSulfur-Reducing BacteriaWhite PeopleConceptsNon-Hispanic whitesEnvironmental risk factorsRisk factorsAA casesCRC casesColonic mucosaCRC developmentDisease statusAfrican AmericansCRC risk factorsUninvolved colonic mucosaColorectal cancer incidencePotential environmental risk factorsTumor-free controlsMultiple dietary componentsRace-dependent associationsEffect of dietColonic biopsiesColorectal cancerDaily servingsHealthy mucosaCancer incidenceDietary intakeProinflammatory pathwaysDiet high
2016
Kinase-Dependent and -Independent Roles for PTK6 in Colon Cancer
Mathur PS, Gierut JJ, Guzman G, Xie H, Xicola RM, Llor X, Chastkofsky MI, Perekatt AO, Tyner AL. Kinase-Dependent and -Independent Roles for PTK6 in Colon Cancer. Molecular Cancer Research 2016, 14: 563-573. PMID: 26983689, PMCID: PMC4912439, DOI: 10.1158/1541-7786.mcr-15-0450.Peer-Reviewed Original ResearchConceptsContext-specific functionsKinase-independent mannerEpithelial-mesenchymal transitionOncogenic signalingEpithelial phenotypeXenograft tumor growthCell survivalExpression of PTK6Protein tyrosine kinase 6DNA-damaging treatmentsTumor suppressor functionTyrosine kinase 6Colon cancer cellsDifferentiated epithelial cellsPTK6 knockdownTumor tissue arraysColon tumor cell linesHuman colon tumor cell linesPTK6 expressionKinase 6ERK5 activationPTK6Tumor growthDNA damageSuppressor functionAssociation of a let-7 miRNA binding region of TGFBR1 with hereditary mismatch repair proficient colorectal cancer (MSS HNPCC)
Xicola RM, Bontu S, Doyle BJ, Rawson J, Garre P, Lee E, de la Hoya M, Bessa X, Clofent J, Bujanda L, Balaguer F, Castellví-Bel S, Alenda C, Jover R, Ruiz-Ponte C, Syngal S, Andreu M, Carracedo A, Castells A, Newcomb PA, Lindor N, Potter JD, Baron JA, Ellis NA, Caldes T, LLor X. Association of a let-7 miRNA binding region of TGFBR1 with hereditary mismatch repair proficient colorectal cancer (MSS HNPCC). Carcinogenesis 2016, 37: 751-758. PMID: 27234654, PMCID: PMC4967215, DOI: 10.1093/carcin/bgw064.Peer-Reviewed Original ResearchAdultAgedAllelesAxin ProteinBeta CateninBinding SitesColorectal Neoplasms, Hereditary NonpolyposisDNA Mismatch RepairDNA Modification MethylasesDNA Repair EnzymesFemaleGene Expression Regulation, NeoplasticGenotypeHumansMaleMicrosatellite InstabilityMiddle AgedProtein Serine-Threonine KinasesReceptor, Transforming Growth Factor-beta Type IReceptor, Transforming Growth Factor-beta Type IIReceptors, Transforming Growth Factor betaTumor Suppressor Proteins
2015
Mutation Spectrum and Risk of Colorectal Cancer in African American Families with Lynch Syndrome
Santa Cruz Guindalini R, Win AK, Gulden C, Lindor NM, Newcomb PA, Haile RW, Raymond V, Stoffel E, Hall M, Llor X, Ukaegbu CI, Solomon I, Weitzel J, Kalady M, Blanco A, Terdiman J, Shuttlesworth GA, Lynch PM, Hampel H, Lynch HT, Jenkins MA, Olopade OI, Kupfer SS. Mutation Spectrum and Risk of Colorectal Cancer in African American Families with Lynch Syndrome. Gastroenterology 2015, 149: 1446-1453. PMID: 26248088, PMCID: PMC4648287, DOI: 10.1053/j.gastro.2015.07.052.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAdenosine TriphosphatasesAdultAge FactorsAgedAged, 80 and overBlack or African AmericanColorectal NeoplasmsColorectal Neoplasms, Hereditary NonpolyposisDNA Mismatch RepairDNA Repair EnzymesDNA-Binding ProteinsFamilyFemaleHumansIncidenceMaleMiddle AgedMismatch Repair Endonuclease PMS2MutationMutL Protein Homolog 1MutS Homolog 2 ProteinNuclear ProteinsRetrospective StudiesRisk FactorsSex FactorsConceptsColorectal cancerLynch syndromeCumulative riskRisk of CRCUS referral centersMMR gene mutationsMutation spectrumNongenetic risk factorsYears of ageMismatch repair genesMMR gene productsMutation-carrying familiesReferral centerRetrospective studyCRC riskRisk factorsFamily historyCancer riskHigh incidenceCRC conditionsSyndromeAbstractTextMMR genesAscertainment criteriaCancerEfficacy of Adjuvant 5-Fluorouracil Therapy for Patients with EMAST-Positive Stage II/III Colorectal Cancer
Hamaya Y, Guarinos C, Tseng-Rogenski SS, Iwaizumi M, Das R, Jover R, Castells A, Llor X, Andreu M, Carethers JM. Efficacy of Adjuvant 5-Fluorouracil Therapy for Patients with EMAST-Positive Stage II/III Colorectal Cancer. PLOS ONE 2015, 10: e0127591. PMID: 25996601, PMCID: PMC4440728, DOI: 10.1371/journal.pone.0127591.Peer-Reviewed Original ResearchConceptsColorectal cancerStage II/III CRC patientsStage II/III colorectal cancerKaplan-Meier survival curvesSelected Tetranucleotide RepeatsSporadic colorectal cancerElevated microsatellite alterationsEMAST statusEfficacy of adjuvantsCRC patientsImproved survivalPatient outcomesSomatic dysfunctionPatientsMicrosatellite alterationsSurvival curvesCancerChemotherapySurvival dataSubsequent cytotoxicityEMASTSurvivalMMR functionSame extentCytotoxicityEnrichment of inflammatory bowel disease and colorectal cancer risk variants in colon expression quantitative trait loci
Hulur I, Gamazon ER, Skol AD, Xicola RM, Llor X, Onel K, Ellis NA, Kupfer SS. Enrichment of inflammatory bowel disease and colorectal cancer risk variants in colon expression quantitative trait loci. BMC Genomics 2015, 16: 138. PMID: 25766683, PMCID: PMC4351699, DOI: 10.1186/s12864-015-1292-z.Peer-Reviewed Original ResearchConceptsInflammatory bowel diseaseColorectal cancerBowel diseaseSingle nucleotide polymorphismsBody mass indexType 2 diabetesHealthy African AmericansColorectal cancer risk variantsMass indexTarget genesColonic diseaseColonic samplesDiseaseNovel target geneBackgroundGenome-wide association studiesHuman colonDifferent ethnic groupsRisk variantsAfrican AmericansColonFalse discovery rateGenetic variantsNucleotide polymorphismsBiological differencesFunctional role
2014
Prevalence of somatic mutl homolog 1 promoter hypermethylation in Lynch syndrome colorectal cancer
Moreira L, Muñoz J, Cuatrecasas M, Quintanilla I, Leoz ML, Carballal S, Ocaña T, López‐Cerón M, Pellise M, Castellví‐Bel S, Jover R, Andreu M, Carracedo A, Xicola RM, Llor X, Boland CR, Goel A, Castells A, Balaguer F. Prevalence of somatic mutl homolog 1 promoter hypermethylation in Lynch syndrome colorectal cancer. Cancer 2014, 121: 1395-1404. PMID: 25557234, PMCID: PMC10508888, DOI: 10.1002/cncr.29190.Peer-Reviewed Original ResearchIGFBP3 Methylation Is a Novel Diagnostic and Predictive Biomarker in Colorectal Cancer
Perez-Carbonell L, Balaguer F, Toiyama Y, Egoavil C, Rojas E, Guarinos C, Andreu M, Llor X, Castells A, Jover R, Boland CR, Goel A. IGFBP3 Methylation Is a Novel Diagnostic and Predictive Biomarker in Colorectal Cancer. PLOS ONE 2014, 9: e104285. PMID: 25127039, PMCID: PMC4134211, DOI: 10.1371/journal.pone.0104285.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorColorectal NeoplasmsCpG IslandsDNA MethylationFemaleHumansInsulin-Like Growth Factor Binding Protein 3Intestinal MucosaMaleMicrosatellite InstabilityMicrosatellite RepeatsMiddle AgedMutationNeoplasm StagingPrognosisPromoter Regions, GeneticProto-Oncogene Proteins B-rafTreatment OutcomeConceptsCRC patientsColorectal cancerPredictive biomarkersStage IICRC cohortPoor disease-free survivalDisease-free survivalIndependent risk factorPopulation-based cohortPotential clinical significancePromising diagnostic biomarkerFree survivalRisk factorsColonic tumorsCRC-specific genesClinical significanceNormal mucosaCancer-related genesPatientsDiagnostic biomarkersTumor tissueBiomarkersCohortCancerHuman cancersThe MLH1 c.1852_1853delinsGC (p.K618A) Variant in Colorectal Cancer: Genetic Association Study in 18,723 Individuals
Abulí A, Bujanda L, Muñoz J, Buch S, Schafmayer C, Valeria Maiorana M, Veneroni S, van Wezel T, Liu T, Westers H, Esteban-Jurado C, Ocaña T, Piqué JM, Andreu M, Jover R, Carracedo A, Xicola RM, Llor X, Castells A, , Dunlop M, Hofstra R, Lindblom A, Wijnen J, Peterlongo P, Hampe J, Ruiz-Ponte C, Castellví-Bel S. The MLH1 c.1852_1853delinsGC (p.K618A) Variant in Colorectal Cancer: Genetic Association Study in 18,723 Individuals. PLOS ONE 2014, 9: e95022. PMID: 24743384, PMCID: PMC3990597, DOI: 10.1371/journal.pone.0095022.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAdenosine TriphosphatasesAmino Acid SubstitutionCohort StudiesColorectal NeoplasmsDNA Repair EnzymesDNA-Binding ProteinsFemaleGenetic Association StudiesGerm-Line MutationHumansINDEL MutationMaleMismatch Repair Endonuclease PMS2Mutation, MissenseMutL Protein Homolog 1MutS Homolog 2 ProteinNuclear ProteinsConceptsColorectal cancerPathological characteristicsLynch syndromeCase-control studyLynch syndrome tumorsFamilial adenomatous polyposisDefective DNA mismatch repairGenotype-phenotype correlationFrequent neoplasmLow-penetrance variantsFamily historyLarge cohortImportant causeAdenomatous polyposisTotal burdenGenetic susceptibilityGermline mutationsUncertain significancePathogenic consequencesSyndromeMLH1 geneCommon formDNA mismatch repairMendelian syndromesRisk variants