MYD88 and hepatocellular carcinoma: To investigate the biological functions of Lnc-Myd88 in vitro, firstly, we detected the endogenous level of Lnc-Myd88 in HCC cell lines, as presented in Supplementary Figure S1C, there was a different distribution for the expression of Lnc-Myd88 in HCC cell lines, among which SMMC-7721 showed the lowest level while Huh7 indicating a higher endogenous expression.