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Related Experiment Videos

Stabilising normal and mis-sense variant alpha-glucosidase.

Revecca Kakavanos1, John J Hopwood, Debbie Lang

  • 1Department of Genetic Medicine, Lysosomal Diseases Research Unit, Children Youth and Women's Health Service, North Adelaide, SA 5006, Australia.

FEBS Letters
|July 19, 2006
PubMed
Summary

D-glucose enhances alpha-glucosidase production and stability in cell cultures. This finding suggests potential therapeutic strategies for Pompe disease by increasing enzyme activity and yield.

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Area of Science:

  • Biochemistry
  • Enzymology
  • Lysosomal storage disorders

Background:

  • Alpha-glucosidase is a key lysosomal enzyme responsible for glycogen hydrolysis.
  • Deficiency in alpha-glucosidase causes Glycogen Storage Disease type II (Pompe disease).

Purpose of the Study:

  • To investigate the effect of D-glucose on alpha-glucosidase production and activity.
  • To explore D-glucose as a potential therapeutic agent for Pompe disease.

Main Methods:

  • Utilized CHO-K1 expression cells for protein production.
  • Assessed enzyme activity and stability in the presence of D-glucose.
  • Analyzed fibroblast cells from adult-onset Pompe disease patients.

Main Results:

Related Experiment Videos

  • D-glucose acts as a competitive inhibitor of alpha-glucosidase.
  • Supplementation with D-glucose (6.0 g/L) increased protein production and stabilized enzyme activity.
  • D-glucose prevented enzyme aggregation and improved purification yield.
  • Increased residual alpha-glucosidase activity in patient fibroblast cells.

    • Conclusions:

    • D-glucose can enhance alpha-glucosidase production and stability.
    • Suggests potential for D-glucose analogs in enzyme enhancement therapy for Pompe disease.