title: The odd-skipped related genes Osr1 and Osr2 are induced by 1,25-dihydroxyvitamin D3.
abstract: The odd-skipped related genes Osr1 and Osr2 encode closely related zinc finger containing transcription factors that are expressed in developing limb. However, their role in osteoblast proliferation and differentiation remains controversial and little is known about their regulation. In this study we showed that both Osr1 and Osr2 were expressed in several murine and human osteoblast cell lines as well as in primary osteoblast cultures. Moreover, their transcript levels were regulated by a number of osteogenic stimuli in murine pre-osteoblast MC3T3-E1 cells. The most robust regulation of Osr1 and Osr2 mRNA levels was observed after stimulation with 1,25-dihydroxyvitamin D3. 1,25-Dihydroxyvitamin D3 induced transcript levels of Osr1 and Osr2 and this up-regulation was confirmed in other osteoblast cultures, both from murine and human origin. This article is part of a Special Issue entitled 'Vitamin D Workshop'.
authors.affiliation: Laboratorium voor Klinische en Experimentele Endocrinologie, KU Leuven, Herestraat 49, Bus 902, 3000 Leuven, Belgium. lieve.verlinden@med.kuleuven.be
authors.forename: Lieve
authors.initials: L
authors.lastname: Verlinden
authors.forename: Carsten
authors.initials: C
authors.lastname: Kriebitzsch
authors.forename: Guy
authors.initials: G
authors.lastname: Eelen
authors.forename: Mark
authors.initials: M
authors.lastname: Van Camp
authors.forename: Carlien
authors.initials: C
authors.lastname: Leyssens
authors.forename: Biauw Keng
authors.initials: BK
authors.lastname: Tan
authors.forename: Ine
authors.initials: I
authors.lastname: Beullens
authors.forename: Annemieke
authors.initials: A
authors.lastname: Verstuyf
mesh_terms: D000818:Animals; D002117:Calcitriol / Q000502:physiology*; D002478:Cells, Cultured; D006801:Humans; D051379:Mice; D010006:Osteoblasts / Q000187:drug effects / Q000378:metabolism; D012333:RNA, Messenger / Q000096:biosynthesis / Q000235:genetics; D014157:Transcription Factors / Q000096:biosynthesis / Q000235:genetics*; D015854:Up-Regulation / Q000187:drug effects
chemical_list: C498490:OSR1 protein, human; C486680:OSR2 protein, human; C121641:Osr1 protein, mouse; C438618:Osr2 protein, mouse; D012333:RNA, Messenger; D014157:Transcription Factors; D002117:Calcitriol