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Long-Term Correction Of Very Long-Chain Acyl-Coa Dehydrogenase Deficiency In Mice Using Aav9 Gene Therapy, Allison Keeler, Thomas Conlon, Glenn Walter, Huadong Zeng, Scott Shaffer, Fu Dungtao, Kirsten Erger, Travis Cossette, Qiushi Tang, Christian Mueller, Terence Flotte
Long-Term Correction Of Very Long-Chain Acyl-Coa Dehydrogenase Deficiency In Mice Using Aav9 Gene Therapy, Allison Keeler, Thomas Conlon, Glenn Walter, Huadong Zeng, Scott Shaffer, Fu Dungtao, Kirsten Erger, Travis Cossette, Qiushi Tang, Christian Mueller, Terence Flotte
Christian Mueller
Very long-chain acyl-coA dehydrogenase (VLCAD) is the rate-limiting step in mitochondrial fatty acid oxidation. VLCAD-deficient mice and patients clinical symptoms stem from not only an energy deficiency but also long-chain metabolite accumulations. VLCAD-deficient mice were treated systemically with 1 x 10(12) vector genomes of recombinant adeno-associated virus 9 (rAAV9)-VLCAD. Biochemical correction was observed in vector-treated mice beginning 2 weeks postinjection, as characterized by a significant drop in long-chain fatty acyl accumulates in whole blood after an overnight fast. Changes persisted through the termination point around 20 weeks postinjection. Magnetic resonance spectroscopy (MRS) and tandem mass spectrometry (MS/MS) revealed normalization of …