L-Fucose treatment of FUT8-CDG.

Park JH, Reunert J, He M, Mealer RG, Noel M, Wada Y, Grüneberg M, Horváth J, Cummings RD, Schwartz O, Marquardt T

Zusammenfassung

FUT8-CDG is a severe multisystem disorder caused by mutations in FUT8, encoding the α-1,6-fucosyltransferase. We report on dizygotic twins with FUT8-CDG presenting with dysmorphisms, failure to thrive, and respiratory abnormalities. Due to the severe phenotype, oral L-fucose supplementation was started. Glycosylation analysis using mass spectrometry indicated a limited response to fucose therapy while the clinical presentation stabilized. Further research is needed to assess the concept of substrate supplementation in FUT8-CDG.