title: Multiplex reverse transcription polymerase chain reaction assessment of sialyltransferase expression in human breast cancer.
abstract: Increased sialylation, especially involving the Sialyl-Lewisa and Sialyl-Lewisx determinants, has been reported in breast cancer. A multiplex reverse transcription-PCR method was used here to determine the expression of five sialyltransferases (ST3Gal III, ST6Gal I, ST3Gal IV, ST3Gal I, and ST3Gal II) in 49 patients surgically treated for locoregional breast cancer. We assessed the relationship between these expressions and clinical, pathological, and biological features. The most expressed sialyltransferase was ST3Gal 1II, which is involved in Sialyl-Lewisa synthesis. ST3Gal III expression was positively correlated to ST6Gal I and ST3Gal IV expressions, to tumor size, and to the number of involved axillary nodes. Patients with high ST3Gal III expression had a shorter overall survival. High ST6Gal I expression was associated with histoprognostic grade III. ST6Gal I expression was negatively correlated to expression of progesterone receptor. In conclusion, high ST3Gal III and ST6Gal I expressions in human breast tumors are associated with poor prognosis markers.
authors.affiliation: Unité Mixte de Recherche du CNRS no 111, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq, France.
authors.forename: M A
authors.initials: MA
authors.lastname: Recchi
authors.forename: M
authors.initials: M
authors.lastname: Hebbar
authors.forename: L
authors.initials: L
authors.lastname: Hornez
authors.forename: A
authors.initials: A
authors.lastname: Harduin-Lepers
authors.forename: J P
authors.initials: JP
authors.lastname: Peyrat
authors.forename: P
authors.initials: P
authors.lastname: Delannoy
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001943:Breast Neoplasms / Q000378:metabolism*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009363:Neoplasm Proteins / Q000378:metabolism*; D016133:Polymerase Chain Reaction / Q000379:methods; D012189:Retrospective Studies; D012799:Sialyltransferases / Q000032:analysis / Q000378:metabolism*; D016019:Survival Analysis; D000094802:beta-D-Galactoside alpha 2-6-Sialyltransferase; D000094663:beta-Galactoside alpha-2,3-Sialyltransferase
chemical_list: D009363:Neoplasm Proteins; D012799:Sialyltransferases; D000094802:beta-D-Galactoside alpha 2-6-Sialyltransferase; D000094663:beta-Galactoside alpha-2,3-Sialyltransferase; C000722087:ST3GAL1 protein, human