PUBLICATION
Sp7/osterix positively regulates dlx2b and bglap to affect tooth development and bone mineralization in zebrafish larvae
- Authors
- Chen, Z., Song, Z., Yang, J., Huang, J., Jiang, H.
- ID
- ZDB-PUB-200103-1
- Date
- 2019
- Source
- Journal of biosciences 44(6): (Journal)
- Registered Authors
- Huang, Jian
- Keywords
- none
- MeSH Terms
-
- Animals
- CRISPR-Cas Systems/genetics
- Calcification, Physiologic/genetics
- Cell Differentiation/genetics
- Gene Expression Regulation, Developmental
- Homeodomain Proteins/genetics
- Humans
- Larva/genetics
- Larva/growth & development
- Osteocalcin/genetics
- Osteogenesis/genetics*
- Sp7 Transcription Factor/genetics*
- Tooth/growth & development
- Transcription Factors/genetics
- Zebrafish/genetics*
- Zebrafish/growth & development
- Zebrafish Proteins/genetics*
- PubMed
- 31894108 Full text @ J. Biosci.
Citation
Chen, Z., Song, Z., Yang, J., Huang, J., Jiang, H. (2019) Sp7/osterix positively regulates dlx2b and bglap to affect tooth development and bone mineralization in zebrafish larvae. Journal of biosciences. 44(6):.
Abstract
Osterix (or Sp7) is an important transcription factor that promotes osteoblast differentiation by modulating the expression of a range of target genes. Although many studies have focused on Osterix/Sp7 regulatory mechanisms, the detailed functions have not been fully elucidated. Toward this end, in this study, we used CRISPR/Cas9 technology to knock out the zebrafish sp7 gene, and then analyzed its phenotype and biological function. Two knockout sp7 mutant lines were successfully obtained. The bone mineralization level was significantly reduced in the zebrafish sp7-/- homozygote, resulting in abnormal tooth development in the larvae. Quantitative real-time polymerase chain reaction showed that loss of sp7 led to down-regulated expression of the dlx2b and bglap genes related to tooth development and bone mineralization, respectively. Moreover, cell transfection experiments demonstrated that Sp7 directly regulates the expression of dlx2b and bglap through Sp7-binding sites on the promoter regions of these two genes. Overall, this study provides new insight into the role of Sp7 in bone mineralization and tooth development.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping