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Updated: Jun 12, 2026
Isolation of Mesenchymal Stem Cells from Human Alveolar Periosteum and Effects of Vitamin D on Osteogenic Activity of Periosteum-derived Cells
Published on: May 4, 2018
Enhanced Pro-Osteogenic Regulatory Modulation in Mesenchymal Stem Cells Derived from the Periosteum Under Simulated
Raul Canal1, Elizabeth F Martinez2, Jamie S Foster3
1ANADEM (Sociedade Brasileira de Direito Médico e Bioética), Setor Shs, Quadra 2, Bloco J, Mezanino-Asa Sul, Brasilia 70322-901, Brazil.
Abstract:
This study aimed to evaluate periosteum-derived mesenchymal stem cells (P-MSCs) cultured under simulated microgravity (SMG) conditions. P-MSCs were induced toward osteogenic differentiation and then exposed to SMG for up to 48 h. As a control, P-MSCs were maintained under identical conditions but without SMG exposure. Cell viability, osteogenesis-related analytes, and gene expression were analyzed at 3, 24 and 48 h. Cell viability under SMG was lower after 3 h but was significantly higher after 24 h, with no difference at 48 h. There was a higher expression of pathways associated with inflammation at 3 h, which was attenuated by 24 h and neutralized at 48 h. P-MSCs under SMG demonstrated three characteristics in at least one timepoint, which supports a pro-osteogenic signaling response: (1) higher osteoprotegerin levels; (2) lower DKK1 and TNF levels; (3) upregulation of genes related to osteogenesis. Our data suggest that P-MSCs exhibit enhanced pro-osteogenic regulatory modulation in SMG.
Insights
Periosteum-derived mesenchymal stem cells (P-MSCs) show enhanced bone-forming potential under simulated microgravity (SMG). SMG exposure modulated cell viability, inflammation, and osteogenesis markers, suggesting a pro-osteogenic response.
Area of Science:
- Biomedical Engineering
- Cell Biology
- Regenerative Medicine
Background:
- Mesenchymal stem cells (MSCs) are crucial for bone regeneration.
- Understanding stem cell behavior in microgravity is vital for space exploration and terrestrial applications.
- Periosteum-derived MSCs (P-MSCs) offer a promising source for osteogenic differentiation.
Purpose of the Study:
- To investigate the effects of simulated microgravity (SMG) on osteogenic differentiation of P-MSCs.
- To analyze cell viability, inflammatory markers, and osteogenesis-related gene expression under SMG.
- To determine the pro-osteogenic potential of P-MSCs cultured in SMG.
Main Methods:
- P-MSCs were induced toward osteogenic differentiation.
- Cells were exposed to SMG for up to 48 hours, with non-SMG cultures as controls.
- Cell viability, osteogenesis-related analytes (e.g., osteoprotegerin, DKK1, TNF), and gene expression were assessed at 3, 24, and 48 hours.
Main Results:
- Cell viability initially decreased at 3h under SMG but significantly increased at 24h.
- Inflammatory pathway expression was elevated at 3h, decreasing by 24h and normalizing at 48h.
- SMG cultures showed higher osteoprotegerin, lower DKK1 and TNF levels, and upregulated osteogenic genes, indicating a pro-osteogenic response.
Conclusions:
- P-MSCs demonstrate enhanced pro-osteogenic regulatory modulation when cultured under simulated microgravity.
- SMG conditions appear to promote osteogenic differentiation of P-MSCs.
- These findings have implications for bone tissue engineering and understanding cellular responses in space environments.
