title: alpha2,3-sialyltransferase ST3Gal III modulates pancreatic cancer cell motility and adhesion in vitro and enhances its metastatic potential in vivo.
abstract: BACKGROUND
  Cell surface sialylation is emerging as an important feature of cancer cell metastasis. Sialyltransferase expression has been reported to be altered in tumours and may account for the formation of sialylated tumour antigens. We have focused on the influence of alpha-2,3-sialyltransferase ST3Gal III in key steps of the pancreatic tumorigenic process.
  
  
  RESULTS
  ST3Gal III overexpressing pancreatic adenocarcinoma cell lines Capan-1 and MDAPanc-28 were generated. They showed an increase of the tumour associated antigen sialyl-Lewis(x). The transfectants' E-selectin binding capacity was proportional to cell surface sialyl-Lewis(x) levels. Cellular migration positively correlated with ST3Gal III and sialyl-Lewis(x) levels. Moreover, intrasplenic injection of the ST3Gal III transfected cells into athymic nude mice showed a decrease in survival and higher metastasis formation when compared to the mock cells.
  
  
  CONCLUSIONS
  In summary, the overexpression of ST3Gal III in these pancreatic adenocarcinoma cell lines underlines the role of this enzyme and its product in key steps of tumour progression such as adhesion, migration and metastasis formation.
authors.affiliation: Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, Girona, Spain.
authors.forename: Marta
authors.initials: M
authors.lastname: Pérez-Garay
authors.forename: Beatriz
authors.initials: B
authors.lastname: Arteta
authors.forename: Lluís
authors.initials: L
authors.lastname: Pagès
authors.forename: Rafael
authors.initials: R
authors.lastname: de Llorens
authors.forename: Carme
authors.initials: C
authors.lastname: de Bolòs
authors.forename: Fernando
authors.initials: F
authors.lastname: Vidal-Vanaclocha
authors.forename: Rosa
authors.initials: R
authors.lastname: Peracaula
mesh_terms: D000818:Animals; D002448:Cell Adhesion; D045744:Cell Line, Tumor; D002465:Cell Movement; D005260:Female; D006801:Humans; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D008819:Mice, Nude; D009362:Neoplasm Metastasis; D009368:Neoplasm Transplantation; D010190:Pancreatic Neoplasms / Q000201:enzymology* / Q000401:mortality / Q000473:pathology / Q000503:physiopathology*; D051381:Rats; D012799:Sialyltransferases / Q000235:genetics / Q000378:metabolism*; D013534:Survival; D000094663:beta-Galactoside alpha-2,3-Sialyltransferase
chemical_list: D012799:Sialyltransferases; D000094663:beta-Galactoside alpha-2,3-Sialyltransferase
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