Cited by 72Glycogen Storage Diseases and MyoclonusRNA Interference and Gene DeliveryLysosomal Storage Disorders Research

G6PC mRNA therapy positively regulates fasting blood glucose and decreases liver abnormalities in a mouse model of glycogen storage disease 1a

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Roseman, Daniel S., Khan, Tayeba, Rajas, Fabienne, Jun, Lucy S., Asrani, Kirtika H., Isaacs, Cleo, Farelli, Jeremiah D., Subramanian, Romesh R.·2018·Molecular Therapy

Abstract

Glycogen storage disease type Ia (GSD1a) is an inherited metabolic disorder caused by the deficiency of glucose-6-phosphatase (G6Pase). GSD1a is associated with life-threatening hypoglycemia and long-term liver and renal complications. We examined the efficacy of mRNA-encoding human G6Pase in a liver-specific G6Pase −/− mouse model ( L-G6PC −/− ) that exhibits the same hepatic biomarkers associated with GSD1a patients, such as fasting hypoglycemia, and elevated levels of hepatic glucose-6-phosphate (G6P), glycogen, and triglycerides. We show that a single systemic injection of wild-type or native human G6PC mRNA results in significant improvements in fasting blood glucose levels for up to 7 days post-dose. These changes were associated with significant reductions in liver mass, hepatic G6P, glycogen, and triglycerides. In addition, an engineered protein variant of human G6Pase, designed for increased duration of expression, showed superior efficacy to the wild-type sequence by maintaining improved fasting blood glucose levels and reductions in liver mass for up to 12 days post-dose. Our results demonstrate for the first time the effectiveness of mRNA therapy as a potential treatment in reversing the hepatic abnormalities associated with GSD1a.

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Crossref · 10.1016/j.ymthe.2018.01.006

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  • Three other GARDs (Crigler-Najjar syndrome type 1, alpha-1 antitrypsin deficiency, and glycogen storage disease type 1) are currently treated by mRNA LNPs in preclinical studies.

    “Additionally, there are three other GARDs (Crigler-Najjar syndrome type 1, alpha-1 antitrypsin deficiency, and glycogen storage disease type 1) which are currently treated by mRNA LNPs in preclinical studies (Table 2).[181–183]”

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Authors
Roseman, D. S., Khan, T., Rajas, F., Jun, L. S., Asrani, K. H., Isaacs, C., Farelli, J. D., & Subramanian, R. R.
Affiliations
  • Alexion Pharmaceuticals (United States) (US)
  • Lyon 1 Université (FR)
Corresponding author
Subramanian, Romesh R.
Venue
Molecular Therapy
Publisher
Elsevier BV
Published
2018-03
Volume
26
Issue
3
Pages
814-821
ISSN
1525-0016 (ISSN-L)
OpenAlex
W2782611922
Cited by
72
References
26
Citations by year
2026: 6 · 2025: 8 · 2024: 7 · 2023: 9 · 2022: 9 · 2021: 13 · 2020: 9 · 2019: 9 · 2018: 2
FWCI
7.05
Type
journal article
Language
en
Open access
Locations
  • Molecular Therapy (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
Funders
Alexion Pharmaceuticals
Topics
  • Health Sciences › Medicine › Rheumatology › Glycogen Storage Diseases and Myoclonus
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Health Sciences › Medicine › Physiology › Lysosomal Storage Disorders Research
Keywords
glycogen storage disease type Ia, glucose-6-phosphatase, fasting hypoglycemia, liver glycogen, hepatic triglycerides, hypoglycemia treatment
MeSH terms
Animals, Blood Glucose, Disease Models, Animal, Fasting, Glucose-6-Phosphatase, Glycogen Storage Disease, Immunohistochemistry, Liver, Male, RNA, Messenger, Protein Engineering, Genetic Therapy, Biomarkers, Gene Expression, Mice, Knockout, Mice, Metabolic Networks and Pathways

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