Optimal tumor sampling for immunostaining of biomarkers in breast carcinoma
Tolles J, Bai Y, Baquero M, Harris LN, Rimm DL, Molinaro AM. Optimal tumor sampling for immunostaining of biomarkers in breast carcinoma. Breast Cancer Research 2011, 13: r51. PMID: 21592345, PMCID: PMC3218938, DOI: 10.1186/bcr2882.Peer-Reviewed Original ResearchConceptsWhole tissue sectionsBreast carcinomaEstrogen receptorBiomarker expressionTumor biomarker expressionAmount of tumorTissue sectionsEvidence-based standardsHeterogeneous markersTherapeutic responseHER-2Optimal tumorBreast biopsyBreast tumorsClinical implicationsMAP-tauQuantitative immunofluorescenceClinical useLevel of expressionCarcinomaImmunostaining assaysBiomarkersTumorsTissue samplesBiomarker heterogeneityQuantitative assessment shows loss of antigenic epitopes as a function of pre-analytic variables
Bai Y, Tolles J, Cheng H, Siddiqui S, Gopinath A, Pectasides E, Camp RL, Rimm DL, Molinaro AM. Quantitative assessment shows loss of antigenic epitopes as a function of pre-analytic variables. Laboratory Investigation 2011, 91: 1253-1261. PMID: 21519325, PMCID: PMC3145004, DOI: 10.1038/labinvest.2011.75.Peer-Reviewed Original ResearchConceptsCore needle biopsyCold ischemic timePre-analytic variablesNeedle biopsyEstrogen receptorIschemic timeTumor resectionTumor resection specimensAntigenic lossResection specimensTissue biomarkersTotal AktBiopsyPhospho-AktQuantitative immunofluorescencePhospho-ERKPhospho-S6K1Antigenic epitopesTotal ERKResectionTotal proteinCytokeratinImmunological methodsAntigenicitySignificant changes