NR2F1 and neoplasm: The link of NAS1 expression to the improved prognosis of cancer patients is likely attributed to its anti-proliferation role, which results in tumor suppression in the primary site and metastatic dormancy in secondary organs, but not the pro-dissemination effect of NAS1. These findings will deepen our understanding of the roles of lncRNAs and NR2F1 in metastatic dormancy.