In this video, we demonstrate the procedure of CD40-activation and expansion of murine B cells from splenocytes of C57BL/6 mice, which can be used as a model antigen-presenting cell (APC) to study induction of immunity.
Liebig, T. M., Fiedler, A., Klein-Gonzalez, N., Shimabukuro-Vornhagen, A., von Bergwelt-Baildon, M. Murine Model of CD40-activation of B cells. J. Vis. Exp. (37), e1734, doi:10.3791/1734 (2010).