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Published on: September 14, 2021
FGF/FGFR signaling in bone formation: progress and perspectives
Pierre J Marie1, Hichem Miraoui, Nicolas Sévère
1Laboratory of Osteoblast Biology and Pathology, INSERM UMR-606 and University Paris Diderot, Paris F-75475, France. pierre.marie@inserm.fr
Abstract:
Fibroblast growth factors (FGFs) are important molecules that control bone formation. FGF act by activating FGF receptors (FGFRs) and downstream signaling pathways that control cells of the osteoblast lineage. Recent advances have been made in the identification of FGF/FGFR signaling pathways that control osteogenesis. Indeed, studies of mouse and human models provided novel insights into the signaling pathways that control bone formation. Genomic studies also highlighted the implication of molecular targets of FGF/FGFR signaling regulating osteoblastogenesis. Recent studies further revealed the important role of crosstalks between FGF/FGFR signaling and other signaling pathways in the regulation of osteogenesis. Finally, the importance of the mechanisms modulating FGFR degradation in the control of osteoblast differentiation has been recently revealed. This short review summarizes the recently described mechanisms underlying FGF/FGFR signaling that are involved in the control of osteoblastogenesis. This knowledge may have potential therapeutic implications in skeletal disorders characterized by abnormal bone formation.
Insights
Fibroblast growth factors (FGFs) and their receptors (FGFRs) are key regulators of bone formation. Recent research clarifies FGF/FGFR signaling, its interactions, and degradation mechanisms in osteoblastogenesis, offering therapeutic potential for bone disorders.
Area of Science:
- Molecular Biology
- Cell Biology
- Developmental Biology
Background:
- Fibroblast growth factors (FGFs) are crucial signaling molecules regulating bone formation.
- FGFs exert their effects by activating FGF receptors (FGFRs) and downstream pathways.
- Osteoblast lineage cells are key targets of FGF/FGFR signaling in bone development.
Purpose of the Study:
- To review recent advances in understanding FGF/FGFR signaling in osteogenesis.
- To highlight novel insights from mouse and human models.
- To explore the role of molecular targets and pathway crosstalks in osteoblastogenesis.
Main Methods:
- Review of recent scientific literature on FGF/FGFR signaling.
- Analysis of genomic studies implicating FGF/FGFR targets.
- Examination of studies on FGF/FGFR pathway crosstalks and receptor degradation.
Main Results:
- Identification of specific FGF/FGFR pathways controlling osteogenesis.
- Genomic data confirms the role of FGF/FGFR targets in osteoblastogenesis.
- Crosstalks with other signaling pathways and FGFR degradation mechanisms are critical regulators.
Conclusions:
- Recent discoveries elucidate FGF/FGFR signaling mechanisms in osteoblastogenesis.
- Understanding these pathways offers potential therapeutic strategies for skeletal disorders.
- Targeting FGF/FGFR signaling may be beneficial for conditions with abnormal bone formation.
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