Title : Upregulated β1-6 branch N-glycan marks early gliomagenesis but exhibited biphasic expression in the progression of astrocytic glioma.

Pub. Date : 2015

PMID : 26045989






3 Functional Relationships(s)
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1 Expression of GnT-V and its GlcNAc-beta1-6 oligosaccharides by-product together with Con-A binding sugars were assessed immunohistochemically on tissue microarrays of 16 normal brain and 159 tissue samples of astrocytomas of variable grades and histology. 2-acetamido-2-deoxy-4-O-(beta-2-acetamid-2-deoxyglucopyranosyl)glucopyranose UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase 2 Homo sapiens
2 Although tissues of both grade I astrocytomas and normal brain showed considerably higher GnT-V expression, GlcNAc-beta1-6 expression was significantly high only in tissues of grade I astrocytomas (p < 0.001), which is attributable to elevated levels of the precursor Con-A binding sugar moieties (p < 0.001). 2-acetamido-2-deoxy-4-O-(beta-2-acetamid-2-deoxyglucopyranosyl)glucopyranose UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase 2 Homo sapiens
3 The activity of GnT-V enzyme was found to be dependent on the degree of glioma pathogenesis, as the GlcNAc-beta1-6 branched expression diminished with every progressive grade of glioma, reaching minimum in glioblastoma (p < 0.001). 2-acetamido-2-deoxy-4-O-(beta-2-acetamid-2-deoxyglucopyranosyl)glucopyranose UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase 2 Homo sapiens