From the genes differentially expressed between BCSC and non-stem compartments, we were particularly interested in potential prognostic and therapy predictive impacts of ITGA7, since it was previously reported as a tumour suppressor in breast cancer [37], and we had also identified ITGA7 somatic mutations, namely L36V and R157Q, that showed chemotherapy-induced selection in breast cancer [39]. Here, ITGA7 is linked to neoplasm.