2015
Prevalence of MLH1 constitutional epimutations as a cause of Lynch syndrome in unselected versus selected consecutive series of patients with colorectal cancer
Castillejo A, Hernández-Illán E, Rodriguez-Soler M, Pérez-Carbonell L, Egoavil C, Barberá VM, Castillejo MI, Guarinos C, Martínez-de-Dueñas E, Juan MJ, Sánchez-Heras AB, García-Casado Z, Ruiz-Ponte C, Brea-Fernández A, Juárez M, Bujanda L, Clofent J, Llor X, Andreu M, Castells A, Carracedo A, Alenda C, Payá A, Jover R, Soto JL. Prevalence of MLH1 constitutional epimutations as a cause of Lynch syndrome in unselected versus selected consecutive series of patients with colorectal cancer. Journal Of Medical Genetics 2015, 52: 498. PMID: 25908759, DOI: 10.1136/jmedgenet-2015-103076.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingBase SequenceColorectal Neoplasms, Hereditary NonpolyposisDNA MethylationDNA Mismatch RepairEpigenesis, GeneticGenetic TestingHumansMicrosatellite RepeatsMolecular Sequence DataMutationMutL Protein Homolog 1Nuclear ProteinsPrevalencePromoter Regions, GeneticSequence Analysis, DNAStatistics, NonparametricConceptsColorectal cancerMLH1 expressionConstitutional epimutationsMultiplex ligation-dependent probe amplificationLigation-dependent probe amplificationMethylation-specific multiplex ligation-dependent probe amplificationDiagnosis of CRCConstitutional MLH1 methylationSeries of patientsMismatch repair genesProbe amplificationBethesda guidelinesConsecutive seriesUnselected seriesLynch syndromeUnselected casesUnselected groupGeneral populationUnselected populationPatientsMLH1 methylationNegligible prevalenceGermline alterationsPrevalenceMLH1 epimutations
2010
Methylation Analysis of MLH1 Improves the Selection of Patients for Genetic Testing in Lynch Syndrome
Pérez-Carbonell L, Alenda C, Payá A, Castillejo A, Barberá VM, Guillén C, Rojas E, Acame N, Gutiérrez-Aviñó FJ, Castells A, Llor X, Andreu M, Soto JL, Jover R. Methylation Analysis of MLH1 Improves the Selection of Patients for Genetic Testing in Lynch Syndrome. Journal Of Molecular Diagnostics 2010, 12: 498-504. PMID: 20489114, PMCID: PMC2893635, DOI: 10.2353/jmoldx.2010.090212.Peer-Reviewed Original ResearchConceptsSelection of patientsBRAF V600E mutationV600E mutationGenetic testingLynch syndromeMLH1 mutationsColorectal cancer patientsNegative colorectal cancerMLH1-negative colorectal cancersMLH1 methylation statusGermline MLH1 mutationMLH1 protein expressionInactivation of MLH1MS-MLPAColorectal cancerCancer patientsBRAF mutationsExclusion criteriaPatientsCorresponding patientsMLH1 methylationSporadic originTumor DNAGermline mutationsProtein expression
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