2013
Clinical benefit from neoadjuvant chemotherapy in oestrogen receptor-positive invasive ductal and lobular carcinomas
Delpech Y, Coutant C, Hsu L, Barranger E, Iwamoto T, Barcenas CH, Hortobagyi GN, Rouzier R, Esteva FJ, Pusztai L. Clinical benefit from neoadjuvant chemotherapy in oestrogen receptor-positive invasive ductal and lobular carcinomas. British Journal Of Cancer 2013, 108: 285-291. PMID: 23299541, PMCID: PMC3566807, DOI: 10.1038/bjc.2012.557.Peer-Reviewed Original ResearchConceptsInvasive ductal carcinomaBreast-conserving surgeryNeoadjuvant chemotherapyPure lobular carcinomaLobular carcinomaClinical benefitTumor sizeER-positive invasive ductal carcinomasLower pathological complete response rateResponse ratePathological complete response ratePathological response rateComplete response rateGood clinical responsePathological complete responseType of chemotherapyPositive surgical marginsSurgical resection marginsClinical responseNodal statusComplete responseResection marginsSurgical marginsDuctal carcinomaPositive margins
2008
PIK3CA-activating mutations and chemotherapy sensitivity in stage II–III breast cancer
Liedtke C, Cardone L, Tordai A, Yan K, Gomez HL, Figureoa LJ, Hubbard RE, Valero V, Souchon EA, Symmans WF, Hortobagyi GN, Bardelli A, Pusztai L. PIK3CA-activating mutations and chemotherapy sensitivity in stage II–III breast cancer. Breast Cancer Research 2008, 10: r27. PMID: 18371219, PMCID: PMC2397526, DOI: 10.1186/bcr1984.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAnthracyclinesAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsChemotherapy, AdjuvantClass I Phosphatidylinositol 3-KinasesDNA Mutational AnalysisFemaleHumansLymphatic MetastasisMiddle AgedMutationNeoadjuvant TherapyNeoplasm StagingPhosphatidylinositol 3-KinasesReceptor, ErbB-2Receptors, EstrogenReceptors, ProgesteroneTaxoidsConceptsPathological complete responseER-positive tumorsPIK3CA mutationsBreast cancerChemotherapy sensitivityPIK3CA exon 9 mutationsStage IIResidual cancer burden scoreER-negative breast tumorsReceptor expression statusNode-positive diseaseResultsTwenty-three patientsTaxane-based chemotherapyType of chemotherapyNode-positive tumorsPIK3CA-activating mutationsEstrogen receptor (ER) expression statusExon 9 mutationsPIK3CA activationRCB scoreChemotherapy regimenNeoadjuvant chemotherapyComplete responseResidual cancerER status