Epithelial-to-mesenchymal Transition Heterogeneity of Circulating Tumor Cells and Their Correlation With MDSCs and Tregs in HER2-negative Metastatic Breast Cancer Patients

Abstract

These findings provide evidence that CTCs in ER⁺/HER2^- mBC patients may be under the control of the immune system and various immune escape mechanisms might be involved during the different stages of their biological evolution.