2009
Stochastic fate of p53-mutant epidermal progenitor cells is tilted toward proliferation by UV B during preneoplasia
Klein AM, Brash DE, Jones PH, Simons BD. Stochastic fate of p53-mutant epidermal progenitor cells is tilted toward proliferation by UV B during preneoplasia. Proceedings Of The National Academy Of Sciences Of The United States Of America 2009, 107: 270-275. PMID: 20018764, PMCID: PMC2806764, DOI: 10.1073/pnas.0909738107.Peer-Reviewed Original ResearchConceptsP53 mutationsNonmelanoma skin cancer incidenceSame cumulative doseSkin cancer incidenceUVB radiationUV-irradiated epidermisP53 tumor suppressor geneP53-mutant clonesCumulative doseCancer incidenceP53 mutant cellsHigh-intensity exposureMurine epidermisPreneoplastic clonesTumor suppressor geneProgenitor cellsExposure resultsPrecancerous cellsPreneoplastic cellsHuman epidermisB radiationClones of cellsInfluence of cytosine methylation on ultraviolet-induced cyclobutane pyrimidine dimer formation in genomic DNA
Rochette PJ, Lacoste S, Therrien JP, Bastien N, Brash DE, Drouin R. Influence of cytosine methylation on ultraviolet-induced cyclobutane pyrimidine dimer formation in genomic DNA. Mutation Research/Fundamental And Molecular Mechanisms Of Mutagenesis 2009, 665: 7-13. PMID: 19427505, DOI: 10.1016/j.mrfmmm.2009.02.008.Peer-Reviewed Original ResearchConceptsLigation-mediated PCRX chromosomeFMR1 geneGenomic DNAInactive X chromosomeDimer formationCyclobutane pyrimidine dimer formationTumor suppressor genePyrimidine dimer formationConstitutive methylationCytosine methylationMethylated cytosineUnmethylated cytosinesSuppressor geneP53 tumor suppressor geneGenesMethylationCPD formationChromosomesCytosineDNAMutationsSunlight-induced mutationsDipyrimidine sitesPGK1
2005
Knockdown of p53 levels in human keratinocytes accelerates Mcl-1 and Bcl-xL reduction thereby enhancing UV-light induced apoptosis
Chaturvedi V, Sitailo LA, Qin JZ, Bodner B, Denning MF, Curry J, Zhang W, Brash D, Nickoloff BJ. Knockdown of p53 levels in human keratinocytes accelerates Mcl-1 and Bcl-xL reduction thereby enhancing UV-light induced apoptosis. Oncogene 2005, 24: 5299-5312. PMID: 15940268, DOI: 10.1038/sj.onc.1208650.Peer-Reviewed Original ResearchConceptsMouse modelP53 levelsP53 siRNAHuman keratinocytesMcl-1Skin cancer developmentKnockout mouse modelP53 tumor suppressor geneCultured human keratinocytesBcl-xL antiapoptotic proteinBcl-xL levelsCommon causeParadoxical responseSkin cancerAccelerated eliminationUltraviolet light exposureWild-type p53Cancer developmentTumor suppressor geneUV-induced DNA damageEpidermal responseE2F-1 levelsPrimary culturesSiRNA-based approachAbnormal cells
1998
Antioxidant action via p53-mediated apoptosis.
Liu M, Pelling JC, Ju J, Chu E, Brash DE. Antioxidant action via p53-mediated apoptosis. Cancer Research 1998, 58: 1723-9. PMID: 9563490.Peer-Reviewed Original ResearchMeSH KeywordsAcetylcysteineAnimalsAntioxidantsApoptosisBlotting, NorthernBlotting, WesternButhionine SulfoximineCells, CulturedDimercaprolDose-Response Relationship, DrugGene Expression Regulation, NeoplasticGlutathioneMiceOxidation-ReductionPyrrolidonecarboxylic AcidSulfhydryl CompoundsThiazolesThiazolidinesTumor Cells, CulturedTumor Suppressor Protein p53Vitamin EConceptsP53 inductionCellular redox potentialP53-dependent apoptosisNormal cellsP53-mediated apoptosisTumor suppressor geneP53 mRNA translationCellular thiol levelsMRNA translationRedox sensorProtein stabilitySuppressor geneP53 tumor suppressor geneNontoxic antioxidantsApoptosisCell linesSulfur-containing antioxidantsBiological effectsPrimary culturesElevated p53 expressionCellsInductionN-acetylcysteineGlutathione levelsRedox potential
1996
Sunlight and sunburn in human skin cancer: p53, apoptosis, and tumor promotion.
Brash DE, Ziegler A, Jonason AS, Simon JA, Kunala S, Leffell DJ. Sunlight and sunburn in human skin cancer: p53, apoptosis, and tumor promotion. Journal Of Investigative Dermatology Symposium Proceedings 1996, 1: 136-42. PMID: 9627707.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsSquamous cell carcinomaCell carcinomaActinic keratosisBasal cell carcinomaHuman skin cancerP53 tumor suppressor geneP53-mutated cellsSunburn cellsApoptotic keratinocytesSkin cancerP53 mutationsNormal skinTumor initiatorTumor promotionFunction of p53Cellular proofreadingTumor suppressor geneCarcinomaMouse skinClonal expansionP53 geneCarcinogenic DNA lesionsP53 allelePrecancerous cellsSunlight exposure
1994
Sunburn and p53 in the onset of skin cancer
Ziegler A, Jonason A, Leffellt D, Simon J, Sharma H, Kimmelman J, Remington L, Jacks T, Brash D. Sunburn and p53 in the onset of skin cancer. Nature 1994, 372: 773-776. PMID: 7997263, DOI: 10.1038/372773a0.Peer-Reviewed Original ResearchConceptsActinic keratosisP53 mutationsSquamous cell carcinomaP53 tumor suppressor geneP53-mutated cellsCell carcinomaApoptotic keratinocytesSkin cancerTumor initiatorTumor suppressor geneMouse skinClonal expansionPrecancerous cellsTumor promoterCarcinomaSkinTissue responseP53SunburnCell differentiationDNA damageAberrant cell differentiationCellsResponseKeratosis
1992
Status of the p53 tumor suppressor gene in human squamous carcinoma cell lines.
Reiss M, Brash DE, Muñoz-Antonia T, Simon JA, Ziegler A, Vellucci VF, Zhou ZL. Status of the p53 tumor suppressor gene in human squamous carcinoma cell lines. Oncology Research Featuring Preclinical And Clinical Cancer Therapeutics 1992, 4: 349-57. PMID: 1486218.Peer-Reviewed Original ResearchConceptsHuman squamous carcinoma cell linesSquamous carcinoma cell linesP53 tumor suppressor geneCarcinoma cell lines
1991
A role for sunlight in skin cancer: UV-induced p53 mutations in squamous cell carcinoma.
Brash DE, Rudolph JA, Simon JA, Lin A, McKenna GJ, Baden HP, Halperin AJ, Pontén J. A role for sunlight in skin cancer: UV-induced p53 mutations in squamous cell carcinoma. Proceedings Of The National Academy Of Sciences Of The United States Of America 1991, 88: 10124-10128. PMID: 1946433, PMCID: PMC52880, DOI: 10.1073/pnas.88.22.10124.Peer-Reviewed Original ResearchConceptsSquamous cell carcinomaCell carcinomaP53 mutationsMajor epidemiologic risk factorsUV-induced p53 mutationsInvasive squamous cell carcinomaEpidemiologic risk factorsUV-specific mutationsP53 tumor suppressor geneInternal malignancySwedish patientsRisk factorsSkin cancerTumor progressionTT double-base changesTumor suppressor geneCarcinomaHuman cancersCancerDipyrimidine sitesSuppressor geneT substitutionSkinMutationsPatients