Glycogen Storage Disease 1a (GSD1a) is a rare, inherited metabolic disorder caused by deficiency of glucose 6-phosphatase (G6Pase-alpha). G6Pase-alpha is critical for maintaining interprandial euglycemia. GSD1a patients exhibit life-threatening hypoglycemia and long-term liver complications including hepatocellular adenomas (HCAs) and carcinomas (HCCs). There is no treatment for GSD1a and the current standard-of-care for managing hypoglycemia (Glycosade((R))/modified cornstarch) fails to prevent HCA/HCC risk. Therapeutic modalities such as enzyme replacement therapy and gene therapy are not ideal options for patients due to challenges in drug-delivery, efficacy, and safety. To develop a new treatment for GSD1a capable of addressing both the life-threatening hypoglycemia and HCA/HCC risk, we encapsulated engineered mRNAs encoding human G6Pase-alpha in lipid nanoparticles. We demonstrate the efficacy and safety of our approach in a preclinical murine model that phenotypically resembles the human condition, thus presenting a potential therapy that could have a significant therapeutic impact on the treatment of GSD1a. Glycogen Storage Disease 1a (Gsd1a) is an inherited disorder caused by glucose 6-phosphatase (G6Pase-alpha) deficiency and characterized by hypoglycaemia and high risk of liver cancer. Here the authors develop a mRNA-based G6Pase-alpha delivery therapy that is efficacious and safe in a mouse model of GSD1a.
机构:
Central Radiological Division, Kobe University, School of Medicine, Kobe
Department of Radiology, Kobe University, School of Medicine, Chuoku, Kobe 650Central Radiological Division, Kobe University, School of Medicine, Kobe
Hirota S.
Sugimoto K.
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Department of Radiology, Nishikobe Medical Center, KobeCentral Radiological Division, Kobe University, School of Medicine, Kobe
Sugimoto K.
Matsumoto S.
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Central Radiological Division, Kobe University, School of Medicine, KobeCentral Radiological Division, Kobe University, School of Medicine, Kobe
Matsumoto S.
Kono M.
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Department of Radiology, Kobe University, School of Medicine, KobeCentral Radiological Division, Kobe University, School of Medicine, Kobe
Kono M.
Harada Y.
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Department of Radiology, Konan Hospital, KobeCentral Radiological Division, Kobe University, School of Medicine, Kobe
机构:
Univ Calif San Diego, Dept Pediat, La Jolla, CA 92093 USAUniv Florida, Dept Pediat, Div Pediat Endocrinol, Glycogen Storage Dis Program, Gainesville, FL USA
Rocca, Celine J.
Cherqui, Stephanie
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Univ Calif San Diego, Dept Pediat, La Jolla, CA 92093 USAUniv Florida, Dept Pediat, Div Pediat Endocrinol, Glycogen Storage Dis Program, Gainesville, FL USA
Cherqui, Stephanie
Weinstein, David A.
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Univ Florida, Dept Pediat, Div Pediat Endocrinol, Glycogen Storage Dis Program, Gainesville, FL USAUniv Florida, Dept Pediat, Div Pediat Endocrinol, Glycogen Storage Dis Program, Gainesville, FL USA