, Volume 45, Issue 3-4, pp 152-155

Clearance of blood-borne pathogens mediated through bispecific monoclonal antibodies bound to the primate erythrocyte complement receptor

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 The primate erythrocyte complement receptor facilitates both the immune adherence reaction and the immune complex clearance properties of primate erythrocytes. These phenomena have been studied for more than 40 years. However, it has only recently become apparent that these characteristics of primate erythrocytes may be useful in the generation of a therapy based on bispecific monoclonal antibodies. Our approach uses bispecific monoclonal antibody constructs (heteropolymers) that promote binding of specific target pathogens to primate erythrocytes via the complement receptor. Once bound to the erythrocytes, the pathogen-heteropolymer complex should be cleared from the circulation, phagocytosed and destroyed in the liver. Results with several prototype target pathogens in monkey models indicate it may be possible to use this technology to develop a robust and general therapy for the treatment of diseases associated with blood-borne pathogens.

Accepted: 14 October 1997