The results showed that the expression level of ENTPD7 in sh-ENTPD7 group was significantly lower than that in the control group and vector group, and the tumor volume and weight in the sh-ENTPD7 group were greatly smaller than those in the control group and vector group (Fig. 5a-j), showing that the sh-ENTPD7 plasmid had an inhibitory effect on lung tumor. The gene discussed is ENTPD7; the disease is neoplasm.