2023
HER2 amplification in cases with low HER2 expression by immunohistochemistry (IHC): A Single Institutional Experience
Podany P, Golastani R, Zhan H, Liang Y, Harigopal M, Krishnamurti U. HER2 amplification in cases with low HER2 expression by immunohistochemistry (IHC): A Single Institutional Experience. American Journal Of Clinical Pathology 2023, 160: s9-s10. DOI: 10.1093/ajcp/aqad150.021.Peer-Reviewed Original ResearchLow HER2 expressionInvasive breast carcinomaIHC scoreHER2 expressionGroup 1Group 3HER2 immunohistochemistryHER2 testingGroup 2HER2 FISHGroup 4ASCO/CAP guidelinesGroup 5Single institutional experienceRecent clinical trialsStandard of careASCO/CAP 2018 guidelinesHER2/CEP17 ratioEquivocal HER2HER2 positivityTrastuzumab deruxtecanMore patientsCAP guidelinesPatient eligibilityCase report
2017
GRB7 Expression and Correlation With HER2 Amplification in Invasive Breast Carcinoma
Bivin W, Yergiyev O, Bunker M, Silverman J, Krishnamurti U. GRB7 Expression and Correlation With HER2 Amplification in Invasive Breast Carcinoma. Applied Immunohistochemistry & Molecular Morphology 2017, 25: 553-558. PMID: 26945445, DOI: 10.1097/pai.0000000000000349.Peer-Reviewed Original ResearchConceptsInvasive breast carcinomaHER2 amplificationHER2 overexpressionER negativityPathologic stageHistologic gradeP53 positivityGRB7 expressionBreast cancerBreast carcinomaInvasive breast cancer correlatesInvasive breast cancerBreast cancer correlatesChromosome 17 copy numberAntiestrogen therapyPR expressionPredictive factorsHER2 expressionCancer correlatesPR testingP53 immunohistochemistryAggressive phenotypeHER2 geneHER2P53 status
2014
The Clinicopathologic Significance of Centromere 17 Copy Number Alterations in Invasive Breast Carcinoma
Krishnamurti U, Silverman J. The Clinicopathologic Significance of Centromere 17 Copy Number Alterations in Invasive Breast Carcinoma. Advances In Anatomic Pathology 2014, 19: 13-17. DOI: 10.1097/pcr.0000000000000016.Peer-Reviewed Original ResearchAdverse prognostic factorHER2 amplificationBreast cancerPrognostic factorsHuman epidermal growth factor receptor 2 (HER2) oncoproteinCopy number alterationsInvasive breast cancerInvasive breast carcinomaHER2/CEP17HER2 gene amplificationNumber alterationsHER2 copy numberChromosome 17 polysomyCEP17 duplicationMost patientsHER2 overexpressionBreast carcinomaClinicopathologic significanceHER2 2Chromosome 17PatientsCancerProtein overexpressionCopy numberHER2
2011
Correlation of Immunohistochemical Expression of p53 With Unamplified Chromosome 17 Polysomy in Invasive Breast Carcinoma
Krishnamurti U, Zarineh A, Atem F, Silverman J. Correlation of Immunohistochemical Expression of p53 With Unamplified Chromosome 17 Polysomy in Invasive Breast Carcinoma. Applied Immunohistochemistry & Molecular Morphology 2011, 19: 28-32. PMID: 20823770, DOI: 10.1097/pai.0b013e3181e9bb6f.Peer-Reviewed Original ResearchConceptsInvasive breast carcinomaChromosome 17 polysomyBreast carcinomaHER2 amplificationReceptor negativityPrognostic indicatorNottingham scoreBreast cancerNeck squamous cell carcinomaNonsmall cell lung carcinomaHormone receptor negativityAdverse prognostic indicatorEstrogen receptor negativitySquamous cell carcinomaIndependent prognostic indicatorCell lung carcinomaCell carcinomaP53 positivityBladder carcinomaP53 immunostainingP53 overexpressionImmunohistochemical expressionLung carcinomaCarcinomaP53 expression
2009
Poor prognostic significance of unamplified chromosome 17 polysomy in invasive breast carcinoma
Krishnamurti U, Hammers J, Atem F, Storto P, Silverman J. Poor prognostic significance of unamplified chromosome 17 polysomy in invasive breast carcinoma. Modern Pathology 2009, 22: 1044-1048. PMID: 19396150, DOI: 10.1038/modpathol.2009.61.Peer-Reviewed Original ResearchConceptsInvasive breast carcinomaChromosome 17 polysomyBreast carcinomaHER2 gene amplificationBreast cancerChromosome 17 aneusomyHuman epidermal growth factor receptor 2 (HER2) oncoproteinAdverse prognostic factorAdverse prognostic indicatorEstrogen receptor negativityTreatment of patientsHigh nuclear gradePoor prognostic significanceGene amplificationPaucity of literatureReceptor negativityMost patientsPathologic factorsPrognostic factorsPredictive factorsPrognostic significanceHistologic gradePrognostic indicatorTumor stageHER2 overexpression