Antigen uptake by dendritic cells and intracellular routing of antigens to specific compartments is regulated by C-type lectin receptors that recognize glycan structures. We show that the modification of Ovalbumin (OVA) with the glycan-structure Lewis(X) (Le(X)) re-directs OVA to the C-type lectin receptor MGL1. Le(X)-modification of OVA favored Th1 skewing of CD4(+) T cells and enhanced cross-priming of CD8(+) T cells.
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