ANTIBODY SPECIFICALLY BINDING TO FOLR1 AND USES THEREOF

The present invention relates to an antibody that specifically binds to folate receptor alpha (FOLR1) and thereby blocks the activity of FOLR1, and relates to a modified antibody that significantly enhances binding ability to an antigen by enhancing the binding ability of a conventional antibody. The modified antibody according to the present invention provided sequences in which the antigen binding site originally possessed by a parent antibody was replaced with amino acids that bind better with an antigen while retaining the basic structure of the parent antibody, thereby enhancing the binding ability with the antigen. In addition, the antibody or an antigen-binding fragment thereof according to the present invention can be used for the prophylactic or therapeutic use of cancer, and canbe used for diagnosis of diseases. The modified antibody according to the present invention provides an amino acid-substituted sequence which better binds an antigen binding site originally possessedby a parent antibody to an