abstract |
It is an object of the present invention to identify a cancer antigen protein specifically expressing on the surface of a cancer cell and to provide a use of the antibody as a therapeutic and / or prophylactic agent for cancer. A CSPG5 protein consisting of an amino acid sequence having any one of SEQ ID NOS: 8, 4, 6, 10 and 12, or an amino acid sequence having 80% or more amino acid identity with the amino acid sequence, A pharmaceutical composition for the treatment and / or prevention of cancer, which comprises an antibody having immunological reactivity or a fragment thereof as an active ingredient. |