“In a combination model, RA applied at early growth phase of CHO-K1 cells followed by addition of NaBu with lowering culture temperature at the end of stationary phase resulted in two- and threefold increase in Qp and final antibody concentration, respectively.”
“In conclusion, our results … the addition of RA … NaBu along with lowering the culture temperature can increase cell culture period as well as Qp and the final concentration of … monoclonal antibody in both CHO-K1 and CHO-S cells without any significant change in binding affinity of the mAb.”