title: Cytosolic sialidase Neu2 upregulation during PC12 cells differentiation.
abstract: The cytosolic sialidase Neu2 is known to be involved in myoblast differentiation. Here, we observed a Neu2 transcriptional induction during nerve growth factor, fibroblast growth factor 2 and epidermal growth factor treatments of PC12 cells, a favored model to study neuronal differentiation. The expression analysis of Neu2 deleted promoter revealed a remarkable increase of luciferase activity in treated PC12 cells, suggesting that in this cell line the Neu2 transcriptional levels are highly regulated. The enzymatic activity of cytosolic sialidase Neu2 was found to increase transiently only during differentiation, whereas was undetectable in untreated PC12 cells. These data suggest a possible involvement of cytosolic sialidase Neu2 in differentiation of PC12 cells.
authors.affiliation: Department of Biomedical Sciences and Biotechnology, Unit of Biochemistry, University of Brescia, Viale Europa 11, 25123 Brescia, Italy. fanzani@med.unibs.it
authors.forename: A
authors.initials: A
authors.lastname: Fanzani
authors.forename: F
authors.initials: F
authors.lastname: Colombo
authors.forename: R
authors.initials: R
authors.lastname: Giuliani
authors.forename: A
authors.initials: A
authors.lastname: Preti
authors.forename: S
authors.initials: S
authors.lastname: Marchesini
mesh_terms: D000818:Animals; D002454:Cell Differentiation / Q000187:drug effects / Q000502:physiology*; D002455:Cell Division / Q000187:drug effects / Q000502:physiology; D003600:Cytosol / Q000201:enzymology*; D004815:Epidermal Growth Factor / Q000494:pharmacology; D016222:Fibroblast Growth Factor 2 / Q000494:pharmacology; D017353:Gene Deletion; D020932:Nerve Growth Factor / Q000494:pharmacology; D009439:Neuraminidase / Q000096:biosynthesis* / Q000235:genetics / Q000378:metabolism; D016716:PC12 Cells; D011401:Promoter Regions, Genetic / Q000187:drug effects / Q000235:genetics; D012333:RNA, Messenger / Q000096:biosynthesis; D051381:Rats; D011994:Recombinant Proteins / Q000235:genetics / Q000378:metabolism; D017421:Sequence Analysis / Q000379:methods; D014158:Transcription, Genetic / Q000187:drug effects; D014162:Transfection; D015854:Up-Regulation
chemical_list: D012333:RNA, Messenger; D011994:Recombinant Proteins; D016222:Fibroblast Growth Factor 2; D004815:Epidermal Growth Factor; D020932:Nerve Growth Factor; D009439:Neuraminidase