SNAI3 and hepatocellular carcinoma: In this study, we identified a novel HCC related lncRNA, termed SNAI3 antisense RNA 1 (SNAI3‐AS1) by two human HCC microarray results (GSE58043 and GSE55191), and subsequently examined the role of SNAI3‐AS1 in HCC and the potential mechanisms involved by a retrospective analysis of 46 HCC patients, and by carrying out in vitro experiments to clarify the contribution of SNAI3‐AS1 to the proliferation and metastasis of HCC and its effect on EMT.