2018
Macrodissection prior to closed system RT-qPCR is not necessary for estrogen receptor and HER2 concordance with IHC/FISH in breast cancer
Gupta S, Mani NR, Carvajal-Hausdorf DE, Bossuyt V, Ho K, Weidler J, Wong W, Rhees B, Bates M, Rimm DL. Macrodissection prior to closed system RT-qPCR is not necessary for estrogen receptor and HER2 concordance with IHC/FISH in breast cancer. Laboratory Investigation 2018, 98: 1076-1083. PMID: 29858579, PMCID: PMC6119113, DOI: 10.1038/s41374-018-0064-1.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkers, TumorBreast NeoplasmsCarcinoma, Ductal, BreastCarcinoma, Intraductal, NoninfiltratingFemaleGene Expression Regulation, NeoplasticHumansImmunohistochemistryIn Situ Hybridization, FluorescenceParaffin EmbeddingPathology, ClinicalReal-Time Polymerase Chain ReactionReceptor, ErbB-2Receptors, EstrogenReproducibility of ResultsSensitivity and SpecificityTissue FixationConceptsIHC/FISHDCIS cohortRT-qPCRMRNA transcript levelsDuctal carcinoma casesFine needle aspiratesMRNA expression levelsHER2 concordanceER positivityDuctal carcinomaHER2 expressionGeneXpert systemCarcinoma casesInvasive tumorsNeedle biopsyBreast cancerEstrogen receptorClinical ImmunohistochemistryBiopsy areaTumor tissueMRNA expressionTumor areaCohortMRNA levelsMRNA markers
2017
High concordance of a closed-system, RT-qPCR breast cancer assay for HER2 mRNA, compared to clinically determined immunohistochemistry, fluorescence in situ hybridization, and quantitative immunofluorescence
Wasserman BE, Carvajal-Hausdorf DE, Ho K, Wong W, Wu N, Chu VC, Lai EW, Weidler JM, Bates M, Neumeister V, Rimm DL. High concordance of a closed-system, RT-qPCR breast cancer assay for HER2 mRNA, compared to clinically determined immunohistochemistry, fluorescence in situ hybridization, and quantitative immunofluorescence. Laboratory Investigation 2017, 97: 1521-1526. PMID: 28892092, PMCID: PMC5711560, DOI: 10.1038/labinvest.2017.93.Peer-Reviewed Original ResearchConceptsInvasive breast cancerBreast cancerQuantitative immunofluorescenceRT-qPCRFormalin-fixed paraffin-embedded tissue blocksRT-qPCR assaysEquivocal categoryReal-time quantitative reverse transcription polymerase chain reactionHER2 receptor statusQuantitative reverse transcription polymerase chain reactionParaffin-embedded tissue blocksReverse transcription-polymerase chain reactionTranscription-polymerase chain reactionIHC/FISHMRNA measurementsAssessment of HER2Low-resource settingsReceptor statusPolymerase chain reactionPathology reportsCT cutsSingle-use cartridgeResource settingsHER2 mRNATissue blocks