Determination of Tn antigen released from cultured cancer cells by capillary electrophoresis
2010
An incomplete elongation of O-glycans in mucins has been found in epithelial cancers, leading to the expression of shorter carbohydrate structures such as Tn antigen (GalNAc-O-Ser/Thr), which has been reported to be one of the most specific human cancer-associated structures. However, there have been no appropriate physicochemical methods for the determination of Tn antigen in biological samples. In the present paper, we developed a capillary electrophoresis method for the determination of Tn antigen, and applied the method to the analysis of the expressed Tn antigen on some leukemia and epithelial cancer cells.
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