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Strontium ranelate in osteoporosis and beyond: identifying molecular targets in bone cell biology
1Laboratory of Osteoblast Biology and Pathology, Inserm U606, Paris, France. pierre.marie@inserm.fr
Abstract:
Osteoporosis is characterized by reduced bone mass and deterioration of bone microarchitecture, resulting in bone fragility and increased susceptibility to fractures. Current antiosteoporotic treatments depend on antiresorptive or anabolic drugs, but a novel modality of treatment appears to be mediated by strontium ranelate, which has been shown to act by opposing bone resorption and formation in vitro. This review article addresses the cellular and molecular mechanisms that have been implicated in the therapeutic strengthening of bone observed upon administration of strontium ranelate to osteoporotic patients. These mechanisms relate to specific pathways of calcium signaling, including complex networks involving nuclear factor of activated T cells (NFAT) and Wnt signaling.
Insights
Strontium ranelate strengthens bone in osteoporosis by influencing bone resorption and formation. It impacts calcium signaling pathways, including NFAT and Wnt signaling, for therapeutic bone strengthening.
Area of Science:
- Biochemistry
- Cell Biology
- Pharmacology
Background:
- Osteoporosis involves reduced bone mass and microarchitecture deterioration, increasing fracture risk.
- Current treatments primarily use antiresorptive or anabolic drugs.
- Strontium ranelate presents a novel therapeutic approach for osteoporosis.
Purpose of the Study:
- To review the cellular and molecular mechanisms of strontium ranelate's bone-strengthening effects.
- To explore how strontium ranelate impacts bone metabolism in osteoporotic patients.
Main Methods:
- Review of existing literature on strontium ranelate's effects.
- Analysis of cellular and molecular pathways involved in bone remodeling.
Main Results:
- Strontium ranelate influences both bone resorption and formation.
- Therapeutic effects are linked to calcium signaling pathways.
- Mechanisms involve nuclear factor of activated T cells (NFAT) and Wnt signaling networks.
Conclusions:
- Strontium ranelate offers a unique mechanism for treating osteoporosis.
- Understanding its molecular actions provides insights into bone health and therapeutic strategies.
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