How Mannosylation Affects Immune Response to Fungal Antigens
Author Information
Author(s): Jennifer S. Lam, Haibin Huang, Stuart M. Levitz, Marta Feldmesser
Primary Institution: Boston University School of Medicine
Hypothesis
The increased immunogenic properties of mannosylated P. pastoris-derived recombinant OVA proteins is due to the increased mannose-specific CLR-mediated uptake of these antigens into dendritic cells.
Conclusion
Mannosylated proteins are taken up more effectively by dendritic cells, enhancing their ability to stimulate T cell responses.
Supporting Evidence
- Mannosylated proteins showed increased binding and uptake by dendritic cells compared to deglycosylated proteins.
- The study demonstrated that both N-linked and extensive O-linked mannosylation enhanced antigen uptake.
- Mannose-specific C-type lectin receptors were identified as key players in the uptake of mannosylated antigens.
Takeaway
This study shows that adding sugar molecules called mannosylation to proteins helps the immune system recognize and respond to them better.
Methodology
The study utilized transfected cell lines and murine bone marrow-derived dendritic cells to analyze the uptake of mannosylated and deglycosylated recombinant proteins.
Digital Object Identifier (DOI)
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