CCR6 and hepatocellular carcinoma: Flow cytometry of γδ T cell subtypes based on Th1, Th2 and Th17 chemokine expression [CD183 (CXCR3) and CD196 (CCR6)]22 in liver perfusates of HCC patients and healthy donors indicated a significant decrease in the Th1 population in HCC‐infiltrating γδ T cells, implying the loss of cytotoxic functions (Figure 2G).