LINC00668 and esophageal squamous cell carcinoma: As illustrated in Figure 1B, linc00941 expression was significantly up-regulated in the ESCC tissues compared to that in normal esophageal tissues; whereas no significant difference was detected between the ESCC and normal group in the expression levels of other lincRNAs (linc00668, linc02514, linc01235, linc01615, linc01929, linc01429, linc02428, linc00443, linc01269, linc01587, linc00330 and linc00278) (Figure 1C–1N).