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Conventional adeno-associated viral (AAV) vectors, while highly effective in quiescent cells such as hepatocytes in the adult liver, confer less durable transgene expression in proliferating cells owing to episome loss. Sustained therapeutic success is therefore less likely in liver disorders requiring early intervention. We have previously developed a hybrid, dual virion approach, recombinant AAV (rAAV)/piggyBac transposon system capable of achieving stable gene transfer in proliferating hepatocytes at levels many fold above conventional AAV vectors. An alternative transposon system, Sleeping Beauty, has been widely used for ex vivo gene delivery; however liver-targeted delivery using a hybrid rAAV/Sleeping Beauty approach remains relatively unexplored.
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Cunningham et al. (2024) studied this question.
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