PIK3CA and breast cancer: Meanwhile, the Kaplan–Meier analysis further showed that among those 10 AGs, PLAU, PCMT1, PIK3CA, PTK2, HSPA8, GCLC, and DGAT1 were correlated with poor OS of BC patients, while the high expression of JUND, IL2RG, and NFKBIA supported a longer survival time of BC patients (Figure S1).