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  • Title: Human blood group B-active ganglio-glycosphingolipid in rat glioma.
    Author: Suetake K, Gasa S, Taki T, Chiba M, Yamaki T, Ibayashi Y, Hashi K.
    Journal: Biochim Biophys Acta; 1993 Sep 29; 1170(1):25-31. PubMed ID: 8399323.
    Abstract:
    A human blood group B-active glycosphingolipid, belonging to the ganglio-series, was isolated from rat glioma cell line RG2 subcutaneous isografts. The oligosaccharide structure of the glycosphingolipid was completely characterized as Gal alpha 1-3(Fuc alpha 1-2)Gal beta 1-3GalNAc beta 1-4Gal beta 1-4Glc beta 1- 1'ceramide by NMR spectrometry, negative fast atom bombardment-mass spectrometry, sequential degradation by glycosidases and methylation analysis. Human blood group B antigenicity and the activity of this glycosphingolipid were confirmed by immunostaining on thin-layer chromatography and the inhibition of hemagglutination, respectively. Although the lipid has been detected in rat granuloma, bone marrow cells, spleen, thymus, ascites hepatoma cells and gastric mucosa, this is the first report of the occurrence of the B-active lipid in glioma.
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