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Viral resistance of MOGS-CDG patients implies a broad-spectrum strategy against acute virus infections

Jinhong Chang1, Timothy M Block, Ju-Tao Guo

  • 1Department of Microbiology and Immunology, Drexel University College of Medicine, Doylestown, PA, USA.

Antiviral Therapy
|October 16, 2014
PubMed

Insights

Patients lacking mannosyl-oligosaccharide glucosidase (MOGS) showed reduced viral infections. This suggests MOGS and ER glucosidases are key targets for broad-spectrum antiviral therapies against enveloped viruses.

Area of Science:

  • Biochemistry
  • Virology
  • Immunology

Background:

  • Mannosyl-oligosaccharide glucosidase (MOGS), or ER glucosidase I, is crucial for N-linked glycan processing.
  • Genetic deficiency in MOGS leads to severe hypogammaglobulinaemia.
  • A paradoxical lack of infectious disease was observed in MOGS-deficient patients.

Purpose of the Study:

  • To investigate the underlying mechanisms of the paradoxical resistance to viral infections in MOGS-deficient individuals.
  • To explore the role of MOGS in viral replication and cellular entry.

Main Methods:

  • Analysis of N-linked glycan processing in MOGS-deficient patients.
  • Assessment of viral replication and cellular entry in the context of impaired glycosylation.

Main Results:

  • Impaired N-linked glycan processing in MOGS-deficient patients compromises viral replication.
  • Reduced cellular entry of enveloped viruses was observed in these patients.
  • The study validates ER glucosidases as potential antiviral targets.

Conclusions:

  • ER glucosidases, including MOGS, are critical for efficient viral replication and entry.
  • Targeting ER glucosidases offers a promising strategy for developing broad-spectrum antiviral agents against enveloped viruses.

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