Lukas Beumers, Efstathios-Iason Vlachavas, Simone Borgoni, Luisa Schwarzmüller, Luca Penso-Dolfin, Birgitta E Michels, Emre Sofyali, Sara Burmester, Daniela Heiss, Heike Wilhelm, Yosef Yarden, Dominic Helm, Rainer Will, Angela Goncalves, Stefan Wiemann
Intratumoral heterogeneity impacts the success or failure of anti-cancer therapies. Here, we investigated the evolution and mechanistic heterogeneity in clonal populations of cell models for estrogen receptor positive breast cancer. To this end, we established barcoded models of luminal breast cancer and rendered them resistant to commonly applied first line endocrine therapies. By isolating single clones from the resistant cell pools and characterizing replicates of individual clones we observed inter- (between cell lines) and intra-tumor (between different clones from the same cell line) heterogeneity...
December 2, 2023: NPJ Breast Cancer