1999
Immunofluorometric assay of p53 protein versus sequencing of p53 exons 5 to 9 for the detection of p53 abnormalities in ovarian carcinoma.
Lianidou E, Levesque M, Katsaros D, Angelopoulou K, Yu H, Genta F, Arisio R, Massobrio M, Bharaj B, Diamandis E. Immunofluorometric assay of p53 protein versus sequencing of p53 exons 5 to 9 for the detection of p53 abnormalities in ovarian carcinoma. Anticancer Research 1999, 19: 749-56. PMID: 10216487.Peer-Reviewed Original ResearchConceptsP53 protein accumulationOvarian carcinomaP53 abnormalitiesP53 mutationsP53 proteinMissense point mutationsPrimary epithelial ovarian carcinomaEpithelial ovarian carcinomaGrade 3 lesionsCM-1 antibodyP53 protein overexpressionP53 exons 5Exon 5Unfavorable prognosisMutant p53 proteinP53 alterationsSerous histotypeClinical valueStage IIIDO-1Most malignanciesImmunofluorometric assayCarcinomaTumor tissueProtein accumulation
1998
Immunofluorometrically determined p53 accumulation as a prognostic indicator in italian breast cancer patients
Levesque M, Katsaros D, Yu H, Giai M, Genta F, Roagna R, Ponzone R, Massobrio M, Sismondi P, Diamandis E. Immunofluorometrically determined p53 accumulation as a prognostic indicator in italian breast cancer patients. International Journal Of Cancer 1998, 79: 147-152. PMID: 9583729, DOI: 10.1002/(sici)1097-0215(19980417)79:2<147::aid-ijc9>3.0.co;2-t.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAnalysis of VarianceAntibody SpecificityBreast NeoplasmsCarcinoma, Ductal, BreastCombined Modality TherapyDisease-Free SurvivalFemaleFluorescent Antibody TechniqueHumansLymphatic MetastasisMiddle AgedMultivariate AnalysisNeoplasm StagingPredictive Value of TestsPrognosisReceptors, EstrogenReceptors, ProgesteroneRecurrenceSensitivity and SpecificityTime FactorsTumor Suppressor Protein p53ConceptsP53 proteinItalian breast cancer patientsProgesterone receptor expression statusMultivariate Cox regression analysisP53-negative patientsP53-positive patientsReceptor expression statusDisease-free survivalLymph node statusSteroid hormone receptor analysisCox regression analysisBreast cancer patientsEstrogen receptor expressionHormone receptor analysisCM-1 antibodySensitive immunofluorometric assayBreast cancer prognosisP53 protein accumulationOverall survivalPatient ageIndependent predictorsHistologic typeNode statusPrognostic valueShort patients
1995
Immunofluorometric analysis of p53 protein and prostate-specific antigen in breast tumours and their association with other prognostic indicators
Levesque M, Clark G, Yu H, Diamandis E. Immunofluorometric analysis of p53 protein and prostate-specific antigen in breast tumours and their association with other prognostic indicators. British Journal Of Cancer 1995, 72: 720-727. PMID: 7545416, PMCID: PMC2033897, DOI: 10.1038/bjc.1995.400.Peer-Reviewed Original ResearchConceptsS-phase fractionEpidermal growth factor receptorHER-2/neuProgesterone receptorPrognostic indicatorBreast cancerBreast tumorsProstate-specific antigen expressionIndependent prognostic indicatorP53 proteinProstate-specific antigenAggressive tumor phenotypeWilcoxon rank sum analysisBreast tumor extractsStatus of p53Growth factor receptorPresence of PSARank-sum analysisFavorable prognosisPrognostic factorsBetter prognosisLevels of ERPresence of p53Antigen expressionTumor extractsMutant p53 protein overexpression is associated with poor outcome in patients with well or moderately differentiated ovarian carcinoma
Levesque M, Katsaros D, Yu H, Zola P, Sismondi P, Giardina G, Diamandis E. Mutant p53 protein overexpression is associated with poor outcome in patients with well or moderately differentiated ovarian carcinoma. Cancer 1995, 75: 1327-1338. PMID: 7882283, DOI: 10.1002/1097-0142(19950315)75:6<1327::aid-cncr2820750615>3.0.co;2-p.Peer-Reviewed Original ResearchConceptsEpithelial ovarian carcinomaOvarian carcinomaMutant p53 proteinResidual tumorHistologic gradeOvarian cancerP53 proteinCancer relapseMutant p53 protein overexpressionLonger disease-free survivalKaplan-Meier survival curvesPostsurgical residual tumorDisease-free survivalEarly-stage diseaseSubset of patientsLow histologic gradeMutant p53 protein accumulationAdvanced-stage cancerDifferent clinical stagesP53-negative tumorsP53-positive tumorsP53 protein overexpressionPoor patient outcomesAnti-p53 antibodiesP53 protein accumulation
1994
Quantitative analysis of mutant p53 protein in breast tumor cytosols and study of its association with other biochemical prognostic indicators in breast cancer
Levesque M, Diamandis E, Yu H, Sutherland D. Quantitative analysis of mutant p53 protein in breast tumor cytosols and study of its association with other biochemical prognostic indicators in breast cancer. Breast Cancer Research And Treatment 1994, 30: 179-195. PMID: 7524772, DOI: 10.1007/bf00666062.Peer-Reviewed Original ResearchConceptsCarcinoembryonic antigenPrognostic indicatorBreast cancerBreast tumorsBiochemical prognostic indicatorsCandidate prognostic indicatorBreast tumor cytosolsSteroid hormone receptorsNegative associationProgesterone receptorTumor cytosolsMutant p53 proteinTumor extractsP53 tumor suppressor gene productSpecific antigenBiochemical parametersObserved associationsHormone receptorsImmunofluorometric procedureStrong positive associationCognate steroid ligandP53 proteinReceptorsStrong negative associationTumor suppressor gene product