ArticleInternational journal of stem cells2024
IGF-1 Induces Osteogenic Differentiation of Rat Bone Marrow Mesenchymal Stem Cells by Promoting SOX4 via the MAPK/ERK Pathway.
Article in International journal of stem cells, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 5 citations in OpenAlex.
- Beyond Potency: Emerging Determinants and Optimization Strategies Enhancing Therapeutic Efficacy of Adult Stem Cells.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- Research Progress on Dance Training as a Mechanical Stimulus for the Prevention and Treatment of Osteoporosis: A Narrative Review.International journal of molecular sciences · 2026Review
- Pravastatin combined with fibrin sealant-embedded BMSCs enhances recovery in steroid-induced avascular necrosis of the femoral head.Scientific reports · 2026Article
- miRNA-130b-3p upregulation impairs osteogenic differentiation in AIS patients by inhibiting the IGF1/ERK pathway.Cellular and molecular life sciences : CMLS · 2025Article
- Zirconia/dental pulp stem cell composite scaffolds repair osteogenic defect via regulating macrophages.Frontiers in bioengineering and biotechnology · 2025Article
- Correlation between body mass index and lymph node metastasis in papillary thyroid carcinoma: a retrospective clinical study.Gland surgery · 2024Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Tissue engineering envisions functional substitute creation for damaged tissues. Insulin-like growth factor-1 (IGF-1) plays roles in bone marrow mesenchymal stem cell (BMSC) osteogenic differentiation (OD), and we investigated its specific mechanism. BMSCs were cultured and OD was induced. Surface antigens (CD105, CD90, CD44, CD45, CD34) were identified by flow cytometry. Adipogenic, chondrogenic, and osteogenic differentiation abilities of BMSCs were observed. BMSCs were cultured in osteogenic medium containing 80 ng/mL IGF-1 for 3 weeks. Alkaline phosphatase activity, calcification level, osteogenic factor (runt related protein 2 [RUNX2], osteocalcin [OCN], osterix [OSX]), total (t-) ERK1/2 and phosphorylated- (p-) ERK1/2 levels, and SRY-related high-mobility-group box 4 (SOX4) levels were assessed by alkaline phosphatase staining and Alizarin Red staining, Western blot, and reverse transcription-quantitative polymerase chain reaction. The mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) pathway inhibitor (PD98059) was used to inhibit the MAPK/ERK pathway in IGF-1-treated BMSCs. Small interfering-SOX4 was transfected into BMSCs to down-regulate SOX4. IGF-1 increased alkaline phosphatase activity, cell calcification, and osteogenic factor (RUNX2, OCN, OSX) levels in BMSCs, indicating that IGF-1 induced rat BMSC OD. SOX4, and p-ERK1/2 and t-ERK1/2 levels were elevated in IGF-1-induced BMSCs, which were annulled by PD98059. PD98059 partly averted IGF-1-induced rat BMSC OD. SOX4 levels, alkaline phosphatase activity, cell calcification, and osteogenic factor (RUNX2, OCN, OSX) levels were reduced after SOX4 down-regulation, showing that downregulation of SOX4 averted the effect of IGF-1 on inducing rat BMSC OD. IGF-1 induced rat BMSC OD by stimulating SOX4 via the MAPK/ERK pathway.
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