In addition, analyses by Kaplan–Meier Plotter (Györffy et al., 2010) show that several proteins from our list of ECM proteins up-regulated in highly metastatic LM2 cells (ADAM9, LOXL2, S100A2; data not shown) show statistically significant correlations with poor prognosis for metastasis-free survival of breast cancer patients. Here, LOXL2 is linked to breast cancer.