Cross-presentation of particulate exogenous antigens (phagosomes)

Summary
Organism
Homo sapiens (human)
Reactome
R-HSA-1236973
PubChem
R-HSA-1236973
Description
  • Dendritic cells (DCs) take up and process exogenous particulate or cell-associated antigens such as microbes or tumor cells for MHC-I cross-presentation. Particulate antigens have been reported to be more efficiently cross-presented than soluble antigens by DCs (Khor et al. 2008). Particulate antigens are internalized by phagosomes. There are two established models that explain the mechanism by which exogenous particulate antigens are presented through MHC I; the cytosolic pathway where internalized antigens are somehow translocated from phagosomes into cytosol for proteasomal degradation and the vacuolar pathway (Lin et al. 2008, Amigorena et al. 2010).
Click on a node on the pathway to see its details. Glycoproteins are marked with a glycoprotein icon in their name.
Displaying all 4 entries
UniProt ID Protein Name Gene Symbol Pathway Viewer
P04839 NADPH oxidase 2
  • CYBB
  • NOX2
view
P06756 Integrin alpha-V
  • ITGAV
  • MSK8
  • VNRA
  • VTNR
view
P16671 Platelet glycoprotein 4
  • CD36
  • GP3B
  • GP4
view
P18084 Integrin beta-5
  • ITGB5
view

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International Collaboration

GlyCosmos is a member of the GlySpace Alliance together with GlyGen and Glycomics@ExPASy.

Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

Partly supported by NIH Common Fund Grant #1U01GM125267-01


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Last updated: April 6, 2026