Antigens pre‐bound to the primate erythrocyte complement receptor via cross‐linked bispecific monoclonal antibody heteropolymers are rapidly cleared from the circulation

摘要

AbstractWe have used cross‐linked, bispecific monoclonal antibody heteropolymers, specific for primate erythrocyte (E) complement receptor (CR1) and target antigen (Ag), to attach125I‐labeled Ag to51Cr‐labeled monkey erythrocytes (E)in vitro. Injection of these sensitized E into monkeys leads to rapid clearance from the circulation of several different125I‐labeled Ag with little, if any sequestration, lysis, or clearance of the E. It should now be possible, in principle, to use the heteropolymer‐E system to facilitate the clearance of blood‐borne pathogens from the