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dc.contributor.authorKiselev, Yury
dc.contributor.authorEriksen, Tonje Engevik
dc.contributor.authorForsdahl, Siri
dc.contributor.authorNguyen, Lan Huong Thi
dc.contributor.authorMikkola, Ingvild
dc.date.accessioned2012-04-17T09:54:56Z
dc.date.available2012-04-17T09:54:56Z
dc.date.issued2012
dc.description.abstractPax6 and Pax6(5a) are two isoforms of the evolutionary conserved Pax6 gene often co-expressed in specific stochiometric relationship in the brain and the eye during development. The Pax6(5a) protein differs from Pax6 by having a 14 amino acid insert in the paired domain, causing the two proteins to have different DNA binding specificities. Difference in functions during development is proven by the fact that mutations in the 14 amino acid insertion for Pax6(5a) give a slightly different eye phenotype than the one described for Pax6. Whereas quite many Pax6 target genes have been published during the last years, few Pax6(5a) specific target genes have been reported on. However, target genes identified by Pax6 knockout studies can probably be Pax6(5a) targets as well, since this isoform also will be affected by the knockout. In order to identify new Pax6 target genes, and to try to distinguish between genes regulated by Pax6 and Pax6(5a), we generated FlpIn-3T3 cell lines stably expressing Pax6 or Pax6(5a). RNA was harvested from these cell lines and used in gene expression microarrays where we identified a number of genes differentially regulated by Pax6 and Pax6(5a). A majority of these were associated with the extracellular region. By qPCR we verified that Ncam1, Ngef, Sphk1, Dkk3 and Crtap are Pax6(5a) specific target genes, while Tgfbi, Vegfa, EphB2, Klk8 and Edn1 were confirmed as Pax6 specific target genes. Nbl1, Ngfb and seven genes encoding different glycosyl transferases appeared to be regulated by both. Direct binding to the promoters of Crtap, Ctgf, Edn1, Dkk3, Pdgfb and Ngef was verified by ChIP. Furthermore, a change in morphology of the stably transfected Pax6 and Pax6(5a) cells was observed, and the Pax6 expressing cells were shown to have increased proliferation and migration capacities.en
dc.identifier.citationPLoS ONE (2012) 7(2): e31915en
dc.identifier.issn1932-6203
dc.identifier.nb-fulltextFulltext http://www.ub.uit.no/munin/bitstream/10037/4107/1/article.pdf
dc.identifier.nb-urnURN URN:NBN:no-uit_munin_3827
dc.identifier.otherFRIDAID 919976
dc.identifier.otherdoi: 10.1371/journal.pone.0031915
dc.identifier.urihttp://hdl.handle.net/10037/4107
dc.identifier.urnURN:NBN:no-uit_munin_3827
dc.language.isoengen
dc.publisherPublic Library of Science (PLoS)en
dc.subjectVDP::Mathematics and natural science: 400::Basic biosciences: 470::Genetics and genomics: 474en
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474en
dc.title3T3 cell lines stably expressing Pax6 or Pax6(5a): a new tool used for identification of common and isoform specific target genes.en
dc.typeJournal articleen
dc.typeTidsskriftartikkelen
dc.typePeer revieweden


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