Alteration of Cell Surface Sialylation
نویسندگان
چکیده
منابع مشابه
Suzuki 22_8
Surface sialylation and glycosylation of tumor cells is known to affect various biological phenomena. In the present study, we analyzed the regulatory roles of cell surface sialylation in cell adhesion to galectin-1 in the human diffuse large B cell lymphoma (DLBCL) cell line, HBL-2, and Burkitt's lymphoma cell line, HBL-8. Vibrio cholerae neuraminidase treatment enhanced HBL-2 cell adhesion to...
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Stress signals induce ceramide (cer) through sphingomyelinase activation, and metabolites of cer such as sphingosine (Sph) and sphingosine-1-phoshate (S-1-P) play a significant role in many biological processes. This study aimed to elucidate the association between the alteration in cell surface sialylation and ceramide-induced cell death in the human Burkitt's lymphoma cell line, HBL-8. The hi...
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BACKGROUND Cell surface glycosylation patterns are markers of cell type and status. However, the mechanisms regulating surface glycosylation patterns remain unknown. METHODOLOGY/PRINCIPAL FINDINGS Using a panel of carbohydrate surface markers, we have shown that cell surface sialylation and fucosylation were downregulated in L1(-/y) neurons versus L1(+/y) neurons. Consistently, mRNA levels of...
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The existence of an ecto-sialyltransferase (ecto-ST) on B lymphocytes with increasing activity at late maturation stages is shown using a novel flow cytometric enzyme assay. This ecto-ST is effective in reconstituting different surface glycoconjugates on desialylated B cells in the presence of exogenous CMP-NeuAc. We found that this ecto-ST is distinct in its activity from soluble ST released i...
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تاریخ انتشار 2004