Used in targeted cancer immunotherapy, particularly for the treatment of gastrointestinal and pancreatic cancers. Binds specifically to DPEP3, a cell surface antigen overexpressed in certain tumor tissues, enabling selective delivery of therapeutic agents or facilitating immune-mediated destruction of cancer cells. Investigated in antibody-drug conjugates (ADCs) and as a component of diagnostic imaging to detect DPEP3-positive tumors. Supports precision medicine approaches by minimizing damage to healthy tissues while enhancing antitumor efficacy.