ZFAS1 and cancer: lncRNA Zinc finger nuclear transcription factor, X-box binding 1-type containing 1 antisense RNA 1 (ZFAS1) was reported to be a prognostic factor in glioma [6] and multiple human cancers [7], and participated in progression of gastric cancer [8], nasopharyngeal carcinoma [9], hepatocellular carcinoma [10], and head and neck squamous cell carcinomas [11].