To investigate the potential prometastatic role of ARID1A in triple-negative breast cancer (TNBC), we first analysed the Kaplan–Meier plotter and BC gene expression miner and observed that ARID1A expression was significantly associated with overall survival (OS), relapse-free survival (RFS), and distant metastasis-free survival (DMFS), as illustrated in Figure 1B,C. The gene discussed is ARID1A; the disease is triple-negative breast carcinoma.