MALAT1 and esophageal squamous cell carcinoma: The results from tissues showed that MALAT1 was up-regulated in 46.3% (25/54, Figure 1B) of ESCC tissues (cancer/normal ratio > 1.5), with the mean expression level of 4.53 in tumors and 3.02 in their counterparts (p = 0.02, Figure 1C).