The most efficient suppression of tumor growth and metastasis induced by TL‐1 cells in nude mice was the anti‐PD‐L1 mAb + Lm‐LLO‐E6 vaccine combination, when compared with anti‐PD‐L1 mAb or Lm‐LLO‐E6 vaccine alone (Figs. 3 and 4). The gene discussed is CD274; the disease is neoplasm.