In addition, we used different injection sites and found that the simultaneous injection of MDP-Ab and human lymphocytes into the tumor achieved the most significant inhibition on tumor growth, and the tumor volume in the MDP-Ab (ca) + h-LYM (ca) group was significantly smaller than that in the PBS (ca) group (control group), MDP-Ab (ca) + h-LYM (ip) group, MDP-Ab (iv) + h-LYM (ip) group, and PBS (ca) + h-LYM (ca) group, which may be related to drug metabolism in vivo and a xenograft rejection immune response. The gene discussed is DPEP1; the disease is neoplasm.