2014
Preanalytical variables and phosphoepitope expression in FFPE tissue: quantitative epitope assessment after variable cold ischemic time
Vassilakopoulou M, Parisi F, Siddiqui S, England AM, Zarella ER, Anagnostou V, Kluger Y, Hicks DG, Rimm DL, Neumeister VM. Preanalytical variables and phosphoepitope expression in FFPE tissue: quantitative epitope assessment after variable cold ischemic time. Laboratory Investigation 2014, 95: 334-341. PMID: 25418580, DOI: 10.1038/labinvest.2014.139.Peer-Reviewed Original ResearchConceptsCold ischemic timeIschemic timeFormalin fixationCompanion diagnostic testingCancer patientsBreast cancerTissue microarrayPhospho-HSP27Breast tumorsDiagnostic testingQuantitative immunofluorescenceAQUA technologyPreanalytical variablesGene expression profilingLoss of antigenicityTissue samplesReproducible assessmentProtein levelsConfidence intervalsSpecimen collectionExpression levelsPhosphorylation levelsAntigenicityRoutine usageResearch settingsA tissue quality index: an intrinsic control for measurement of effects of preanalytical variables on FFPE tissue
Neumeister VM, Parisi F, England AM, Siddiqui S, Anagnostou V, Zarrella E, Vassilakopolou M, Bai Y, Saylor S, Sapino A, Kluger Y, Hicks DG, Bussolati G, Kwei S, Rimm DL. A tissue quality index: an intrinsic control for measurement of effects of preanalytical variables on FFPE tissue. Laboratory Investigation 2014, 94: 467-474. PMID: 24535259, PMCID: PMC4030875, DOI: 10.1038/labinvest.2014.7.Peer-Reviewed Original ResearchConceptsCold ischemic timeIschemic timeQuantitative immunofluorescenceLevel of expressionTissue qualityER expression levelsBreast cancer casesExpression levelsFormalin fixationInformative epitopesValidation cohortCancer casesBreast cohortProtein statusGlobal assessmentPatient samplesTissue cohortPreanalytical variablesEpitope expressionCohortIntrinsic controlMeasurement of effectsQuality IndexFFPE tissuesEpitopes
2011
P1-07-03: Preanalytical Variables Affect Protein Expression in Formalin Fixed Paraffin Embedded Tissue – Assessment of Intrinsic Controls To Define Tissue Quality for Immunohistochemical Analysis.
Neumeister V, Lostritto K, Siddiqui S, Anagnostou V, Vassilakopoulou M, Zarrella E, Molinaro A, Hicks D, Rimm D. P1-07-03: Preanalytical Variables Affect Protein Expression in Formalin Fixed Paraffin Embedded Tissue – Assessment of Intrinsic Controls To Define Tissue Quality for Immunohistochemical Analysis. Cancer Research 2011, 71: p1-07-03-p1-07-03. DOI: 10.1158/0008-5472.sabcs11-p1-07-03.Peer-Reviewed Original ResearchIschemic timeProtein expressionBreast cancerFormalin fixationDifferent breast cancer cohortsTumor tissuePairs of biopsiesTumor heterogeneityBreast cancer cohortBreast cancer biopsiesBreast cancer specimenPre-analytical variablesHistone 4ER alphaCancer cohortImmunohistochemical analysisCancer biopsiesSecond cohortAQUA scoreCancer specimenClinical settingQuantitative immunofluorescenceResectionCancer ResBiopsy