During the same year, this team demonstrated that CD39+HBVs− CAR T cells and CD39+ autologous tumor-specific CD8+ T cells induced more apoptosis of tumor cells in the hepatocellular carcinoid organ using CD39 as a marker, which was concluded based on comparisons with the CD39−CD8+ T cell subpopulation (36). The gene discussed is ENTPD1; the disease is neoplasm.