僅用于工業應用或科學研究，不可用于人類或動物的臨床診斷或治療，非藥用. Polatuzumab is a monoclonal antibody, which targets CD79b that is found on the surface of B cells. Polatuzumab sticks to the CD79b protein and delivers the chemotherapy compound into the cell. Polatuzumab can be used to synthesize Polatuzumab Vedotin, which is an antibody-drug conjugate （ADC） targeting CD79b