While lncRNAs such as XIST (162–172), CRDNE (173–179), FOXD2-AS1 (186–194), ANRIL (195–197), HOXA11-AS (198–203), TP73-AS1 (204–206), and DANCR (207–210) are only known as tumor inducers, the ultimate function of some lncRNAs is controversial. This evidence concerns the gene XIST and neoplasm.