title: Molecular cloning and characterization of the expression pattern of the zebrafish alpha2, 8-sialyltransferases (ST8Sia) in the developing nervous system.
abstract: Sialyltransferases are Golgi type II transmembrane glycoproteins involved in the biosynthesis of sialylated glycolipids and glycoproteins. These sialylated compounds play fundamental roles in the development of a variety of tissues including the nervous system. In this study, we have molecularly cloned from zebrafish sources, the orthologues of the six human alpha2,8-sialyltransferases (ST8Sia), a family of sialyltransferases implicated in the alpha2-8-mono-, oligo-, and poly-sialylation of glycoproteins and gangliosides and we have analysed their expression pattern in the embryonic zebrafish nervous system, using in situ hybridization. Our results show that all six ST8Sia exhibit distinct and overlapping patterns of expression in the developing zebrafish central nervous system with spatial and temporal regulation of the expression of these genes, which suggests a role for the alpha2-8-sialylated compounds in the developing nervous system.
authors.affiliation: Unité de Glycobiologie Structurale et Fonctionnelle, Université des Sciences et Technologies de Lille, UMR CNRS 8576, IFR 147, 59655, Villeneuve d'Ascq, France.
authors.forename: Lan-Yi
authors.initials: LY
authors.lastname: Chang
authors.forename: Anne-Marie
authors.initials: AM
authors.lastname: Mir
authors.forename: Christine
authors.initials: C
authors.lastname: Thisse
authors.forename: Yann
authors.initials: Y
authors.lastname: Guérardel
authors.forename: Philippe
authors.initials: P
authors.lastname: Delannoy
authors.forename: Bernard
authors.initials: B
authors.lastname: Thisse
authors.forename: Anne
authors.initials: A
authors.lastname: Harduin-Lepers
mesh_terms: D000117:Acetylglucosamine / Q000737:chemistry; D000595:Amino Acid Sequence; D000818:Animals; D002240:Carbohydrate Sequence; D003001:Cloning, Molecular; D004625:Embryo, Nonmammalian / Q000201:enzymology; D018507:Gene Expression Regulation, Developmental; D015971:Gene Expression Regulation, Enzymologic; D008969:Molecular Sequence Data; D009420:Nervous System / Q000196:embryology* / Q000201:enzymology*; D010802:Phylogeny; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D017422:Sequence Analysis, DNA; D012799:Sialyltransferases / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D013997:Time Factors; D015027:Zebrafish / Q000196:embryology* / Q000235:genetics*; D029961:Zebrafish Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism
chemical_list: D012333:RNA, Messenger; D029961:Zebrafish Proteins; D012799:Sialyltransferases; D000117:Acetylglucosamine