2007
Subclassification of microsatellite-unstable tumors in colorectal cancer
Ahuja N, Baylin S. Subclassification of microsatellite-unstable tumors in colorectal cancer. Current Colorectal Cancer Reports 2007, 3: 212-219. DOI: 10.1007/s11888-007-0033-3.Peer-Reviewed Original ResearchHereditary nonpolyposis colorectal cancerSporadic colorectal cancerColorectal cancerMMR genes MLH1Nonpolyposis colorectal cancerK-ras mutationsBRAF V600E mutationMicrosatellite-unstable tumorsMismatch repair genesVillous adenomaPathologic differencesHNPCC tumorsInherited syndromeTumor typesPolyp pathwayMicrosatellite instabilityCancerGermline mutationsMMR genesGenes MLH1TumorsInherited mutationsRepair genesMutationsEpigenetic silencing
1998
Incidence and functional consequences of hMLH1 promoter hypermethylation in colorectal carcinoma
Herman J, Umar A, Polyak K, Graff J, Ahuja N, Issa J, Markowitz S, Willson J, Hamilton S, Kinzler K, Kane M, Kolodner R, Vogelstein B, Kunkel T, Baylin S. Incidence and functional consequences of hMLH1 promoter hypermethylation in colorectal carcinoma. Proceedings Of The National Academy Of Sciences Of The United States Of America 1998, 95: 6870-6875. PMID: 9618505, PMCID: PMC22665, DOI: 10.1073/pnas.95.12.6870.Peer-Reviewed Original ResearchConceptsCpG islandsMismatch repair genesCell linesDNA mismatch repairMMR-deficient cell linesDNA methylationSuch methylationSporadic primary colorectal cancerEpigenetic inactivationMMR capacityMismatch repairRepair genesMethylationFunctional consequencesColorectal cancer cell linesCancer cell linesPromoter hypermethylationHypermethylationMicrosatellite instabilityProtein expressionHMLH1 proteinGenesColorectal cancerHMLH1 protein expressionInactivation
1997
Association between CpG island methylation and microsatellite instability in colorectal cancer.
Ahuja N, Mohan AL, Li Q, Stolker JM, Herman JG, Hamilton SR, Baylin SB, Issa JP. Association between CpG island methylation and microsatellite instability in colorectal cancer. Cancer Research 1997, 57: 3370-4. PMID: 9269998.Peer-Reviewed Original ResearchConceptsDe novo methylationNovo methylationPromoter region CpG islandsThrombospondin-1 genesCpG island methylationDeficient DNA repairCancer 1 geneMethylation patternsTranscriptional inactivationCpG islandsDNA repairImportant genesHypermethylation eventsColorectal cancerGenetic instabilityExtensive methylationIsland methylationGenesMethylationAberrant methylationRepair genesInsulin-like growth factor IIPromoter hypermethylationMicrosatellite instabilityGrowth factor II