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Tuesday, July 24, 2018

Tn and STn are members of a family of carbohydrate tumor antigens that possess carbohydrate–carbohydrate interactions

Marit Sletmoen, Thomas A Gerken, Bjørn T Stokke, Joy Burchell, C Fred Brewer

The mucin-type O-glycome in cancer aberrantly expresses the truncated glycans Tn (GalNAcα1-Ser/Thr) and STn (Neu5Acα2,6GalNAcα1-Ser/Thr). However, the role of Tn and STn in cancer and other diseases is not well understood. Our recent discovery of the self-binding properties (carbohydrate–carbohydrate interactions, CCIs) of Tn (Tn–Tn) and STn (STn–STn) provides a model for their possible roles in cellular transformation. We also review evidence that Tn and STn are members of a larger family of glycan tumor antigens that possess CCIs, which may participate in oncogenesis.

DOI

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