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 [1].
References:
[1]. Estelle Bourbon, et al. Polatuzumab vedotin: an investigational anti-CD79b antibody drug conjugate for the treatment of diffuse large B-cell lymphoma. Expert Opin Investig Drugs. 2020 Oct;29(10):1079-1088.