ReferenceID 458

Ribitol restores functionally glycosylated α-dystroglycan and improves muscle function in dystrophic FKRP-mutant mice

Nat Commun

O-mannosylated α-dystroglycan (α-DG) serves as receptors for cell-cell and cell-extracellular matrix adhesion and signaling. Hypoglycosylation of α-DG is involved in cancer progression and underlies dystroglycanopathy wi

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Reference Id
458
Evidence Id
17048
Core Evidence Id
17048
Source Reference Id
1145
Herb2 Reference Id
HBREF001931
Subject Paper Key
HBIN048522_30150693
Pubmed Id
30150693
Doi
10.1038/s41467-018-05990-z
Paper Title
Ribitol restores functionally glycosylated α-dystroglycan and improves muscle function in dystrophic FKRP-mutant mice
Paper Abstract
O-mannosylated α-dystroglycan (α-DG) serves as receptors for cell-cell and cell-extracellular matrix adhesion and signaling. Hypoglycosylation of α-DG is involved in cancer progression and underlies dystroglycanopathy with aberrant neuronal development. Here we report that ribitol, a pentose alcohol with previously unknown function in mammalian cells, partially restores functional O-mannosylation of α-DG (F-α-DG) in the dystroglycanopathy model containing a P448L mutation in fukutin-related protein (FKRP) gene, which is clinically associated with severe congenital muscular dystrophy. Oral administration of ribitol increases levels of ribitol-5-phosphate and CDP-ribitol and restores therapeutic levels of F-α-DG in skeletal and cardiac muscles. Furthermore, ribitol, given before and after the onset of disease phenotype, reduces skeletal muscle pathology, significantly decreases cardiac fibrosis and improves skeletal and respiratory functions in the FKRP mutant mice. Ribitol treatment presents a new class, low risk, and easy to administer experimental therapy to restore F-α-DG in FKRP-related muscular dystrophy.
Journal
Nat Commun
Publish Year
2018
Experiment Subject
fkrp-deficient mouse
Experiment Type
Animal Experiment
Phenotype Related
Muscular Dystrophy
Paper Title Cn
Paper Title En
Ribitol restores functionally glycosylated α-dystroglycan and improves muscle function in dystrophic FKRP-mutant mice
Bilingual Status
semi_complete