RRC ID 15491
著者 Renn J, Winkler C.
タイトル Osterix-mCherry transgenic medaka for in vivo imaging of bone formation.
ジャーナル Dev Dyn
Abstract Intramembranous and chondral bone formation by osteoblasts is found in all vertebrates. The genetic network controlling osteoblast differentiation is highly conserved and regulated by a small number of key factors, including the zinc-finger transcription factor Osterix. Expression analysis of osterix in the teleost model medaka revealed a highly restricted expression in skeletal regions. For in vivo imaging, we generated transgenic medaka expressing mCherry under control of the osterix promoter. We show that the transgene becomes expressed in early osteoblasts, which have not yet mineralized bone matrix, and remains high in matured and mineralizing osteoblasts. Life imaging of transgenic larvae provided insight into the appearance and behavior of early osteoblasts during development of the teleost cranium, vertebrae, and caudal fin. In summary, osterix-mCherry transgenic medaka enable us to analyze osteoblasts during different maturation phases in vivo and represent a unique tool to study osteoblast behavior in vertebrate embryos and adults.
巻・号 238(1)
ページ 241-8
公開日 2009-1-1
DOI 10.1002/dvdy.21836
PMID 19097055
MeSH Animals Animals, Genetically Modified* Fluorescent Dyes / metabolism Gene Expression Regulation, Developmental Imaging, Three-Dimensional* In Situ Hybridization Oryzias* / anatomy & histology Oryzias* / physiology Osteogenesis / physiology* Recombinant Fusion Proteins / genetics Recombinant Fusion Proteins / metabolism Transcription Factors / genetics Transcription Factors / metabolism*
IF 3.275
引用数 64
WOS 分野 ANATOMY & MORPHOLOGY DEVELOPMENTAL BIOLOGY
リソース情報
メダカ database osx:mCherry (TG1134) osc:eGFP (TG1133)