Journal article

High dose-rate brachytherapy of localized prostate cancer converts tumors from cold to hot

Simon P Keam, Heloise Halse, Thu Nguyen, Minyu Wang, Nicolas Van Kooten Losio, Catherine Mitchell, Franco Caramia, David J Byrne, Sue Haupt, Georgina Ryland, Phillip K Darcy, Shahneen Sandhu, Piers Blombery, Ygal Haupt, Scott G Williams, Paul J Neeson

Journal for ImmunoTherapy of Cancer | BMJ PUBLISHING GROUP | Published : 2020

Abstract

BACKGROUND: Prostate cancer (PCa) has a profoundly immunosuppressive microenvironment and is commonly immune excluded with few infiltrative lymphocytes and low levels of immune activation. High-dose radiation has been demonstrated to stimulate the immune system in various human solid tumors. We hypothesized that localized radiation therapy, in the form of high dose-rate brachytherapy (HDRBT), would overcome immune suppression in PCa. METHODS: To investigate whether HDRBT altered prostate immune context, we analyzed preradiation versus postradiation human tissue from a cohort of 24 patients with localized PCa that received HDRBT as primary treatment (RadBank cohort). We performed Nanostring i..

View full abstract