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2 protocols using 2 deoxy 2 fluoro l fucose

1

Glycosylation Inhibitors for Cell Culture

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Caco-2 cell lines, A549 cell lines, and Eagle’s Minimum Essential Medium (EMEM) were obtained from the American Type Culture Collection (ATCC), Manassas, VA, USA. Dithiothreitol (DTT), iodoacetamide (IAA), and a human immortalized prostate PNT2 cell line were purchased from Sigma-Aldrich, St. Lousi, MO, USA. Phosphate-Buffered Saline (PBS), Roswell Park Memorial Institute (RPMI) 1640 medium, fetal bovine serum (FBS), and penicillin were purchased from ThermoFisher Scientific, Waltham, MA, USA. Sequencing Grade Modified Trypsin was purchased from Promega. Glycosylation inhibitors Kifunensine, 2-deoxy-2-fluoro-l-fucose, 6-alkynyl fucose, and 2,4,7,8,9-Penta-O-acetyl-N-acetyl-3-fluoro-b-d-neuraminic acid methyl ester were purchased from Carbosynth, San Diego, CA, USA.
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2

Glycan Modulation and Analysis

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UGCG inhibitors MZ31 (used concentration: 2μM), MZ21 (2μM), miglustat (100μM) were produced as previously described (Ghisaidoobe et al., 2014 (link)) and eliglustat (200nM) was obtained from Bio-Connect. Swainsonine (20μg/mL) and kifunensine (20μM) were obtained from Sigma. N-glycosylation inhibitor activity was confirmed by incubating W6/32 immunoprecipitated HLA-I molecules with Endoglycosidase H (Sigma) in a 20μl reaction mixture (50μM Sodiumcitrate (pH5.5), 0.2% SDS, 2μl Endoglycosidase H and protease inhibitors) for 18h at 37°C followed by HLA-I detection on immunoblot. Sialyltransferase inhibitor (3Fax-peracetyl Neu5Ac, 100μM) was obtained from Sigma and fucosyltransferase inhibitor (2-Deoxy-2-fluoro-L-fucose, 100μM) was obtained from Carbosynth. Cells were cultured for 2 or 3 days at 37°C with inhibitors and analyzed by flow cytometry. Cells were incubated with neuraminidase (N2876, Sigma, 225mU/mL) for 1h at 37°C.
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