CD4 and hepatocellular carcinoma: Under the hypothesis that circulating CD4+ T cells in HCC have a different lncRNA–miRNA/mRNA network than that in normal patients, in this work, circulating CD4+ cells from HCC clinical samples were extracted and compared to those from healthy people to illustrate the expression landscape of lncRNAs, miRNAs, and mRNAs, as well as the regulatory network of miRNA–mRNA/lncRNA.