ArticleBMC musculoskeletal disorders2025
Priming of mouse pre-osteoblasts with Interleukin-3 attenuates TNF-α-induced-inhibition of osteoblast differentiation.
Article in BMC musculoskeletal disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Cellular signaling crosstalk between osteoporosis and diabetes: Common mechanisms and therapeutic targets (Review).Biomedical reports · 2026Review
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5 authors.
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Abstract
backgroundIn inflammatory bone loss disorders, such as rheumatoid arthritis and post-menopausal osteoporosis, TNF-α is an important effector cytokine that promotes osteoclastogenesis and inhibits osteoblastogenesis. Currently, clinical interventions primarily include anti-osteoclastic agents to prevent bone loss, however, anabolic agents are scarce and there's an utmost need. Previously, IL- 3 has been shown to enhance osteogenic differentiation of human bone marrow-derived mesenchymal stem cells in vitro. However, its role remains unclear in inflammatory pathologies, where TNF-α negatively impacts osteoblast differentiation. This study aims to investigate IL- 3's impact on osteogenic differentiation process under the negative influence of TNF-α.
methodsCalvarial pre-osteoblasts were isolated from BALB/c mice pups and in vitro osteoblast differentiation was performed as per established protocols. TNF-α was used as a negative regulator of osteoblast differentiation and the effect of IL- 3 on this differentiation was studied by assessing matrix mineralization using Alizarin red S staining. Osteoblast differentiation markers, including, alkaline phosphatase and osteocalcin were evaluated using qPCR. ALP activity was measured using the pNPP colorimetric assay. Furthermore, Western blotting was employed to deduce the mechanism(s) of IL- 3 action on TNF-α-induced-inhibition of osteoblast differentiation.
resultsAlizarin red S staining revealed that IL- 3 priming protects pre-osteoblasts from TNF-α-induced-inhibition of osteoblast differentiation and that this protective effect is irreversible. Mechanistically, IL- 3 pretreatment suppresses TNF- α-induced activation of NF-κB/SMURF1 axis thus preventing β-CATENIN degradation, which drives osteogenic gene expression.
conclusionsPriming mouse pre-osteoblasts with IL- 3 prevents TNF-α-induced of osteoblast differentiation in vitro, and, thus, could be a novel candidate in the treatment of inflammatory bone loss disorders.
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