The present invention relates to: an immuno-
oncology composition comprising an anti-MUC1
antibody or an
antigen-binding fragment thereof that specifically binds to a polypeptide comprising the C-terminal
extracellular domain of
Mucin 1 (MUC1); and a use for inducing an immuno-
oncology response in a subject by using same. The anti-MUC1
antibody or
antigen-binding fragment thereof that specifically binds to a polypeptide comprising the C-terminal
extracellular domain of MUC1 according to the present invention does not exhibit direct
cytotoxicity to
cancer cells, induces an increase in the activity of immune cells, and exhibits
antibody-dependent
cellular cytotoxicity (ADCC) by inhibiting immune evasion of
cancer. Therefore, the anti-MUC1 antibody or
antigen-binding fragment thereof can be used as various types of immuno-
oncology agents, immuno-oncology adjuvants, or combination therapeutic agents for inducing an immune response in a subject and enhancing an anticancer effect.