Molecular engineering to improve antibodies' anti-lymphoma activity.

The human/mouse chimeric CD20 antibody rituximab has significantly improved the survival of lymphoma patients. However, translational research into pharmacology and effector mechanisms of rituximab has identified several limitations of this prototypic antibody. For example, humanized or fully human next-generation antibodies demonstrated reduced immunogenicity, which may translate into improved applicability in certain patient populations. Furthermore, novel technologies of antibody engineering offer the potential to tailor antibody effector functions. Here, glyco- or protein engineering of antibodies' Fc region has demonstrated promising activity in preclinical models. However, these novel molecules are still in early phases of clinical development, and data from on-going and future studies will determine whether promising preclinical results will indeed translate into improved drugs for the treatment of lymphoma patients.