Prognostic analysis by GEPIA2 showed that the high-expression group of ABCB9 and SPINT1 had a significantly worse prognosis (p = 0.0034 and p = 0.0067, respectively), whereas prognosis for the other genes, although involved in BC progression, did not differ remarkably between the high and low expression groups. Here, SPINT1 is linked to breast cancer.