abstract |
The present invention addresses the problem of providing: an antibody which can bind specifically to CDH6 and has a high internalization activity; an antibody-drug conjugate which contains the antibody and has a high anti-tumor activity; a medicine which is prepared using the antibody-drug conjugate and has a therapeutic effect on tumors; a method for treating a tumor using the antibody, the antibody-drug conjugate or the medicine; and others. According to the present invention, there are provided: an anti-CDH6 antibody which has an internalization activity; an (anti-CDH6 antibody)-drug conjugate which comprises the anti-CDH6 antibody and a novel PBD derivative bonded to each other and has a high anti-tumor activity; and a medicine and a method for treating a tumor, in each of which the anti-CDH6 antibody or the (anti-CDH6 antibody)-drug conjugate is used. |