CRE-Ter enhances murine bone differentiation, improves muscle cell atrophy, and increases irisin expression

Area of Science:

• Biomolecular effects of natural compounds
• Cellular differentiation and atrophy studies
• Potential therapeutic applications in musculoskeletal disorders

Background:

• Curcuminoid-rich extract (CRE-Ter) is a water-soluble formulation of Curcuma longa extract.
• Osteoporosis and sarcopenia are age-related musculoskeletal disorders with significant health impacts.
• Irisin, a myokine, plays a role in bone and muscle health.

Purpose of the Study:

• To investigate the biomolecular effects of CRE-Ter on osteoblast differentiation.
• To evaluate CRE-Ter's efficacy in ameliorating dexamethasone-induced muscle atrophy.
• To determine CRE-Ter's impact on irisin expression and related molecular pathways.

Main Methods:

• In vitro studies using murine MC3T3-E1 preosteoblasts and C2C12 myotubes.
• Assessment of alkaline phosphatase activity, calcium deposition, and gene expression (Bmp-2, Runx2, collagen 1a, β-catenin, TNF-α, IL-6, FNDC5).
• Molecular docking simulations to predict interactions between curcuminoids and irisin.

Main Results:

• CRE-Ter significantly enhanced osteoblast differentiation markers in MC3T3-E1 cells.
• CRE-Ter treatment improved dexamethasone-induced C2C12 myotube atrophy, decreasing pro-inflammatory cytokines and increasing FNDC5/irisin expression.
• CRE-Ter modulated β-catenin and p38 signaling pathways and showed strong molecular interactions with irisin.

Conclusions:

• CRE-Ter demonstrates potential to stimulate osteoblast differentiation and ameliorate muscle atrophy.
• Increased irisin expression and favorable modulation of signaling pathways suggest therapeutic benefits.
• CRE-Ter holds promise for treating osteoporosis, sarcopenia, and osteosarcopenia.