SMIM30 and hepatocellular carcinoma: Pang et al. showed that LINC00998 encoded a short peptide SMIM30, and the knockdown of SMIM30 peptide inhibited hepatocellular cancer (HCC) cell proliferation, migration, and invasion in vitro and hindered the growth and metastasis of xenograft tumors derived from HCC cells in vivo (Pang et al. 2020).