GPT and neoplasm: found that when bioluminescence was imaged in the livers of mice treated with an anti‐ANO1 antibody by establishing an anti‐ANO1 antibody‐treated mouse model of CRC liver metastasis, only a few tumour nodules were observed by the naked eye when low concentrations of the anti‐ANO1 antibody were used, and virtually no tumour nodules were observed when high concentrations were used, while both concentrations reduced the serum ALT, AST and total bilirubin.