TUSC7 and esophageal squamous cell carcinoma: LSAMP-AS1, also called LOC285194 or Tumor Suppressor Candidate 7(TUSC7), was previously defined as a tumor suppressor in esophageal squamous cell carcinoma (ESCC) and colorectal cancer (Liu et al., 2013; Qi et al., 2013; Tong et al., 2014).