Kaplan-Meier plots (https://kmplot.com/analysis/) (accessed on 02 March 2025) showed that patients with higher OTUB2 expression in breast cancer or TNBC had shorter relapse-free survival (RFS) (Fig. 1D), suggesting that OTUB2 may influence the prognosis of TNBC patients. This evidence concerns the gene OTUB2 and breast cancer.