Transcription profiling of mouse tumors arising in wild-type or St6gal1 null littermates

ABSTRACT: Sialic acids on vertebrate cell surfaces mediate many biological roles. Altered expression of certain sialic acid types or their linkages can have prognostic significance in human cancer. A classic but unexplained example is enhanced α2-6-sialylation on N-glycans, resulting from over-expression of the Golgi enzyme β-galactoside:α2-6-sialyltransferase (ST6Gal-I). Previous data supporting a role for the resulting Siaα2-3Galβ1-4GlcNAc (Sia6LacNAc) structure in tumor biology were based on in vitro studies in transfected carcinoma cells, in which increased Sia6LacNAc on β1-integrins enhanced their binding to ligands, and stimulated cell motility. Here we examine for the first time the in vivo role of the ST6Gal-I enzyme in the growth and differentiation of spontaneous mammary cancers in m

ORGANISM(S): Mus musculus

SUBMITTER: Maria Hedlund 

PROVIDER: E-GEOD-9447 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress