This protocol describes the in vitro comparison of two key functional characteristics of rituximab: target binding and complement-dependent cytotoxicity (CDC) induction. The methods were employed for a side-to-side comparison between reference rituximab and a rituximab biosimilar. These assays can be employed during biosimilar development or as a quality control in their production.
Salinas-Jazmín, N., González-González, E., Vásquez-Bochm, L. X., Pérez-Tapia, S. M., Velasco-Velázquez, M. A. In Vitro Methods for Comparing Target Binding and CDC Induction Between Therapeutic Antibodies: Applications in Biosimilarity Analysis. J. Vis. Exp. (123), e55542, doi:10.3791/55542 (2017).