Journal article

Improved Natural Killer cell activity and retained anti-tumor CD8( ) T cell responses contribute to the induction of a pathological complete response in HER2-positive breast cancer patients undergoing neoadjuvant chemotherapy

E Muraro, E Comaro, R Talamini, E Turchet, G Miolo, S Scalone, L Militello, D Lombardi, S Spazzapan, T Perin, S Massarut, D Crivellari, Riccardo Dolcetti, D Martorelli

Journal of Translational Medicine | BMC | Published : 2015

Abstract

BACKGROUND: Locally advanced HER2-overexpressing breast cancer (BC) patients achieve a high rate of pathological complete responses (pCR) after neoadjuvant chemotherapy (NC). The apparently unaltered immune proficiency of these patients together with the immune-modulating activities of NC drugs suggest a potential contribution of host immunity in mediating clinical responses. We thus performed an extensive immunomonitoring in locally advanced BC patients undergoing NC to identify immunological correlates of pCR induction. METHODS: The immune profile of 40 HER2-positive and 38 HER2-negative BC patients was characterized at diagnosis and throughout NC (Paclitaxel and Trastuzumab, or Docetaxel ..

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