Used in targeted cancer therapies, particularly in the development of antibody-drug conjugates (ADCs) for solid tumors. It specifically binds to Caprin-1, a protein overexpressed in various cancers including breast, lung, and gastric cancers, enabling selective delivery of cytotoxic agents to tumor cells. This targeted approach helps minimize damage to healthy tissues and enhances treatment efficacy. Also employed in diagnostic applications to detect Caprin-1 expression levels in tumor samples, aiding in patient stratification and monitoring therapeutic response.