RAB11B and breast cancer: Previous reports in osteosarcoma, lung, and breast cancer development described different, discrepant modes of RAB11B-AS1 regulation on RAB11B mRNA and protein levels: downregulation (Chen et al., 2018), upregulation (Li et al., 2020) or no effect (Niu et al., 2020) of the sense transcript was observed, generating an inconclusive scenario.