PD-L1 Protein Expression on Both Tumor Cells and Macrophages are Associated with Response to Neoadjuvant Durvalumab with Chemotherapy in Triple-negative Breast Cancer
Ahmed FS, Gaule P, McGuire J, Patel K, Blenman K, Pusztai L, Rimm DL. PD-L1 Protein Expression on Both Tumor Cells and Macrophages are Associated with Response to Neoadjuvant Durvalumab with Chemotherapy in Triple-negative Breast Cancer. Clinical Cancer Research 2020, 26: 5456-5461. PMID: 32709714, PMCID: PMC7572612, DOI: 10.1158/1078-0432.ccr-20-1303.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntibodies, MonoclonalAntigens, CDAntigens, Differentiation, MyelomonocyticAntineoplastic Combined Chemotherapy ProtocolsB7-H1 AntigenBiomarkers, TumorCell ProliferationFemaleGene Expression Regulation, NeoplasticHumansLymphocytes, Tumor-InfiltratingMacrophagesMiddle AgedNeoadjuvant TherapyProgrammed Cell Death 1 ReceptorTriple Negative Breast NeoplasmsConceptsTriple-negative breast cancerPD-L1 expressionNeoadjuvant durvalumabTumor cellsImmune cellsBreast cancerPretreatment core-needle biopsiesPhase I/II clinical trialsPD-L1 protein expressionIMpassion 130 trialCore needle biopsyAmount of CD68Neoadjuvant settingMetastatic settingPD-L1Clinical trialsNeedle biopsyInsufficient tissuePatientsCD68Stromal compartmentQuantitative immunofluorescenceChemotherapyFinal analysisProtein expressionValidation of an immunomodulatory gene signature algorithm to predict response to neoadjuvant immunochemotherapy in patients with primary triple-negative breast cancer.
Iwase T, Pusztai L, Blenman K, Li X, Seitz R, Nielsen T, Schweitzer B, Hout D, Bailey D, Zhang X, Shen Y, Ueno N. Validation of an immunomodulatory gene signature algorithm to predict response to neoadjuvant immunochemotherapy in patients with primary triple-negative breast cancer. Journal Of Clinical Oncology 2020, 38: 3117-3117. DOI: 10.1200/jco.2020.38.15_suppl.3117.Peer-Reviewed Original ResearchPrimary triple-negative breast cancerTriple-negative breast cancerPathological complete responsePD-L1 IHCIM subtypesPredictive valueNeoadjuvant immunochemotherapyBreast cancerPhase I/II trialPretreatment core-needle biopsiesAntigen-presenting immune cellsPossible predictive markerImmune cell populationsImmune cell processesCore needle biopsyNegative predictive valuePositive predictive valueStrong predictive valuePositive likelihood ratioNegative likelihood ratioImmunomodulatory subtypeNeoadjuvant immunotherapyII trialLikelihood ratioComplete response