Recognition of tumor glycans by antigen-presenting cells.

Curr Opin Immunol

Department of Molecular Cell Biology and Immunology, Vrije Universiteit Medical Center Amsterdam, PO Box 7057, 1081 BT Amsterdam, The Netherlands.

Published: February 2006

C-type lectin receptors on antigen-presenting cells are potent antigen-uptake receptors with specificity for glycan structures. Glycosylation changes during malignant transformation create tumor-specific carbohydrate structures that interact with C-type lectins on dendritic cells. Recent findings revealed that tumor glycoproteins, such as carcinoembryonic antigen and MUC-1, indeed interact with the C-type lectins DC-SIGN and macrophage galactose-type lectin on antigen-presenting cells. The consequences for anti-cancer immunity or tolerance induction can be extrapolated from the function of C-type lectins in pathogen recognition and antigen presentation. In addition, in vivo studies in mice recently demonstrated the potency of targeting antigens to C-type lectins on antigen-presenting cells for anti-tumor vaccination strategies.

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http://dx.doi.org/10.1016/j.coi.2005.11.001DOI Listing

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