Recent progress in enzyme engineering has led to versions of human butyrylcholinesterase (BChE) that hydrolyze cocaine efficiently in plasma, reduce concentrations reaching reward neurocircuity in the brain, and weaken behavioral responses to this drug. Along with enzyme advances, increasingly avid anti-cocaine antibodies and potent anti-cocaine vaccines have also been developed. Here we review these developments and consider the potential advantages along with the risks of delivering drug-intercepting proteins via gene transfer approaches to treat cocaine addiction.
Keywords: Adeno-associated viral vector, butyrylcholinesterase, cocain hydrolase, cocaine vaccine, gene therapy, helper-dependent viral vector, monoclonal antibody, keyhole limpet hemocyanin, hydrolytic cleavage, BChE, Cocaine, Cytomegalovirus
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