Ladiratuzumab

Ladiratuzumab (hLIV22) is a humanized monoclonal antibody against zinc transporter LIV-1/ZIP6. Ladiratuzumab is conjugated to MMAE (HY-15162) via a cleavable dipeptide linker to synthesize an antibody-dr-ug conjugate (ADC) Ladiratuzumab vedotin (HY-P99683). Ladiratuzumab vedotin selectively targets LIV-1 protein overexpressed on the surface of tumor cells, enters cells through antibody-mediated receptor endocytosis, releases MMAE to inhibit microtubule polymerization, and kills adjacent tumor cells with a bystander effect. Ladiratuzumab can be used in the study of solid tumors such as metastatic triple-negative breast cancer (mTNBC)[1][2].