Title |
Identification and Functional Characterization of a Human GalNAc α2,6-Sialyltransferase with Altered Expression in Breast Cancer
|
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Published in |
Molecular Medicine, January 2002
|
DOI | 10.1007/bf03402002 |
Pubmed ID | |
Authors |
Georgia Sotiropoulou, Mari Kono, Anthony Anisowicz, Goran Stenman, Shuichi Tsuji, Ruth Sager |
Abstract |
We sought to identify genes with altered expression during human breast cancer progression by applying mRNA comparisons of normal and tumor mammary cell lines with increasingly malignant phenotypes. The gene encoding a new sialyltransferase (STM) was found to be down-regulated in tumor cells. Abnormal expression and enzymatic activities of sialyltransferases in tumor cells result in the formation of tumor-associated carbohydrate antigens that can be used for the better understanding of the disease process and are applied for tumor diagnosis and immunotherapy. Altered glycosylation patterns of the MUC1 mucin, in particular, is a target antigen for immunotherapy of breast and other cancers. |
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