STEAP3 and breast cancer: All of the above lncRNAs were further submitted to multivariate Cox regression analysis to identify the independent prognostic predictors for BC, which indicated that only six lncRNAs—MEG8, NAV2-AS2, STEAP3-AS1, GLIS3-AS1, LINC00158, AC012640.1—had an independent prognostic value in BC, and these six lncRNAs were used to develop a lncRNA recurrent prognostic model.