Plant-suspension cells are an in vitro system that can be used for recombin
ant protein production under carefully controlled certified conditions. Pla
nt-suspension cells can be grown in shake flasks or fermenters to produce s
econdary metabolites, like vincristine and vinblastine, and to produce reco
mbinant proteins after transformation. This review article focuses on discu
ssing the generation of transformed suspension-cell lines expressing recomb
inant proteins, like antibodies, and recombinant-protein downstream process
ing and purification.