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Expression of CD175 (Tn), CD175s (sialosyl-Tn) and CD176 (Thomsen-Friedenreich antigen) on malignant human hematopoietic cells by Yi Cao; Anette Merling; Uwe Karsten; Steffen Goletz; Michael Punzel; Regine Kraft; Günter Butschak; Reinhard Schwartz-Albiez is a Medicine article available to read on EtoBox.
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## Abstract The expression of the histo‐blood group carbohydrate structures T‐nouvelle (Tn, CD175), sialylated Tn (CD175s) and the Thomsen‐Friedenreich disaccharide (TF, CD176) on human leukemia cell lines was analyzed by their reactivity with specific monoclonal antibodies in flow cytometry, immunohistology and immunoprecipitation. Expression of sialylated CD176 was evaluated by comparative immunostaining with anti‐CD176 antibodies before and after sialidase treatment. While only few cell lines expressed unmasked CD176, sialylated CD176 was present on all hematopoietic cell lines and native lymphocytes examined. CD175 and CD175s are preferentially expressed on erythroblastic leukemia cell lines. CD175s expression in these cells is consistent with the transcription of the gene encoding the key enzyme α2,6‐sialyltransferase (hST6GalNAc1). The staining intensity was reduced after methanol pretreatment of cells, indicating that these glycans are partially expressed as constituents of glycosphingolipids. Immunoprecipitation and subsequent Western blotting revealed a series of distinct high molecular glycoproteins as carriers for these carbohydrate antigens. CD34 was identified as major
Who reads Expression of CD175 (Tn), CD175s (sialosyl-Tn) and CD176 (Thomsen-Friedenreich antigen) on malignant human hematopoietic cells?
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- Author
- Yi Cao; Anette Merling; Uwe Karsten; Steffen Goletz; Michael Punzel; Regine Kraft; Günter Butschak; Reinhard Schwartz-Albiez
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley; Research Square; Test accounts (ISSN 0020-7136)
- Published
- 2008
- Language
- EN
- Field
- Medicine (Health Sciences)