AAVPCRMAX

AAVPCRMAX is an innovative recombinant adeno-associated virus (rAAV) manufacturing platform designed to mimic the replication-coupled packaging process of wild-type AAV (wtAAV). Developed at the University of Massachusetts Chan Medical School, the system utilizes a "Plasmid DNA in Cellulo Replication" (AAVPCR) strategy to broadly enhance vector potency and yield while reducing manufacturing costs. The platform employs a three-plasmid approach: a standard helper plasmid, a replication plasmid (encoding Ad5 polymerase, precursor terminal protein, and I-SceI meganuclease), and a template plasmid containing I-SceI restriction sites and Ad5 ITR-flanked Rep/Cap genes alongside the AAV ITR-flanked gene of interest. Upon co-transfection, the Ad5 replication complex amplifies the Rep/Cap genes approximately 400-fold, enabling a 10–20X reduction in plasmid consumption. Vectors produced via AAVPCRMAX exhibit significantly improved purity, higher titers, and a threefold increase in transduction potency in both cell culture and animal models compared to traditional triple transfection methods.