CXCL2 and breast cancer: The Kaplan–Meier curves showed that in breast cancer patients, higher expression of mRNAs of CXCL2, 6, 9, 10, 12, 13, 14 and lower expression of mRNAs of CXCL3, 8, and 17 was significantly associated with longer overall survival (OS) (p < 0.05) (Figure 7A).