Abstract PS15-09: Adverse events in breast cancer patients treated with concurrent or sequential radiation therapy and CDK 4/6 inhibitors in metastatic setting

Author(s):  
Marcin Kubeczko ◽  
Agnieszka Badora-Rybicka ◽  
Anna Polakiewicz-Gilowska ◽  
Aleksandra Leśniak ◽  
Katarzyna Świderska ◽  
...  
2005 ◽  
Vol 11 (5) ◽  
pp. 317-320 ◽  
Author(s):  
Kathryn Beal ◽  
Clifford Hudis ◽  
Larry Norton ◽  
Raquel Wagman ◽  
Beryl McCormick

2020 ◽  
Vol 62 (1) ◽  
pp. 110-118
Author(s):  
Isabel Linares-Galiana ◽  
Miguel Angel Berenguer-Frances ◽  
Rut Cañas-Cortés ◽  
Monica Pujol-Canadell ◽  
Silvia Comas-Antón ◽  
...  

Abstract A detailed understanding of the interactions and the best dose-fractionation scheme of radiation to maximize antitumor immunity have not been fully established. In this study, the effect on the host immune system of a single dose of 20 Gy through intraoperative radiation therapy (IORT) on the surgical bed in low-risk breast cancer patients undergoing conserving breast cancer has been assessed. Peripheral blood samples from 13 patients were collected preoperatively and at 48 h and 3 and 10 weeks after the administration of radiation. We performed a flow cytometry analysis for lymphocyte subpopulations, natural killer cells (NK), regulatory T cells (Treg) and myeloid-derived suppressor cells (MDSCs). We observed that the subpopulation of NK CD56+high CD16+ increased significantly at 3 weeks after IORT (0.30–0.42%, P < 0.001), while no changes were found in immunosuppressive profile, CD4+CD25+Foxp3+Helios+ Treg cells, granulocytic MDSCs (G-MDSCs) and monocytic MDSCs (Mo-MDSCs). A single dose of IORT may be an effective approach to improve antitumor immunity based on the increase in NK cells and the non-stimulation of immunosuppressive cells involved in immune escape. These findings support future combinations of IORT with immunotherapy, if they are confirmed in a large cohort of breast cancer patients.


2006 ◽  
Vol 117 (2) ◽  
pp. 359-365 ◽  
Author(s):  
Jeffrey A. Ascherman ◽  
Matthew M. Hanasono ◽  
Martin I. Newman ◽  
Duncan B. Hughes

Sign in / Sign up

Export Citation Format

Share Document