CTLA4 and hepatocellular carcinoma: A total of these 5 genes were expressed at greater in the C10_CD4-CXCL13, C4_CD8-LAYN, and C8_CD4-CTLA4 bundle of abnormal tissues than normal tissues, and in the C3_CD8-SLC4A10 bundle of normal liver tissues compared to HCC tissues (Fig. 8).