ArticleInternational journal of molecular sciences2025
An Osteoblast-Specific Enhancer and Subenhancer Cooperatively Regulate
Article in International journal of molecular sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Engineering multifunctional microspheres for sequential regulation of osteoimmune microenvironment and bone remodeling balance to promote regeneration of osteoporotic bone defects.Journal of orthopaedic translation · 2026Article
- Branch site mutated mice revealed distinct roles of two Runx2 isoforms in bone development.Frontiers in cell and developmental biology · 2026Article
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Authors and funding
13 authors.
Funding
Abstract
Runx2 is an essential transcription factor for osteoblast differentiation and chondrocyte maturation. The spatiotemporal expression of Runx2 is regulated by enhancers. We previously identified a 1.3 kb osteoblast-specific enhancer; however, mice with this deletion showed no phenotypes. A 0.8 kb conserved region detected near the 1.3 kb enhancer did not exhibit enhancer activity in reporter assays, whereas four tandem repeats of 452 bp (452 × 4) containing the most conserved region of 0.8 kb induced strong reporter activity in chondrocyte cell lines. However, chondrocytes of enhanced green fluorescent protein (EGFP) reporter mice using 452 × 4 did not express EGFP. When 452 × 4 was combined with the 1.3 kb enhancer, hypertrophic chondrocytes highly expressed EGFP. Moreover, the 0.8 kb region combined with the 1.3 kb enhancer induced EGFP expression in prehypertrophic and hypertrophic chondrocytes. The deletion of both the 1.3 kb enhancer and the 0.8 kb conserved region slightly reduced Runx2 expression in the limbs. However, neither homozygous nor heterozygous deletions in the Runx2
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