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Desiree Van der Kleij, Alexandra Van Remoortere, Joost H. N. Schuitemaker, Martien L. Kapsenberg, Andre M. Deelder, Aloysius G. M. Tielens, Cornelus H. Hokke, Maria Yazdanbakhsh, Triggering of Innate Immune Responses by Schistosome Egg Glycolipids and Their Carbohydrate Epitope GalNAcβ1-4(Fucα1-2Fucα1-3)GlcNAc, The Journal of Infectious Diseases, Volume 185, Issue 4, 15 February 2002, Pages 531–539, https://doi.org/10.1086/338574
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Abstract
To investigate the interactions of glycoconjugates with the innate immune system, peripheral blood mononuclear cells were stimulated with glycolipids derived from Schistosoma mansoni eggs and worms and with biochemically synthesized neoglycoconjugates. Egg glycolipids stimulated the production of interleukin (IL)-10, IL-6, and tumor necrosis factor-a in monocytes, whereas worm glycolipids failed to do so. When monoclonal antibodies that specifically recognize defined carbohydrate epitopes were used, the binding of a GalNAcβ1-4(Fucα1-2Fucα1-3)GlcNAc (LDN-DF) reactive antibody was pronounced on egg glycolipids but was absent on worm glycolipids. The binding of antibodies that recognize Galβ1-4(Fucα1-3)GlcNAc (LewisX), GalNAcβ1- 4GlcNAc (LDN), and GalNAcβ1-4(Fucα1-3)GlcNAc (LDN-F) was comparable for both preparations. Cytokine production in response to neoglycoconjugates containing enzymatically synthesized glycans also was measured. The LDN-DF neoglycoconjugate was the most potent cytokine inducer, which indicates that this difucosylated glycan can act at the host-parasite interface and can trigger innate immune responses.
- cytokine
- immune response
- carbohydrates
- monoclonal antibodies
- eggs
- epitopes
- glycoconjugates
- glycolipids
- immunity, natural
- interleukins
- monocytes
- parasites
- polysaccharides
- schistosoma
- schistosomatidae
- antibodies
- helminths
- interleukin-6
- schistosoma mansoni
- peripheral blood mononuclear cell
- host (organism)