scholarly journals Osteogenic Response of Human Mesenchymal Stem Cells Analysed Using Combined Intracellular and Extracellular Metabolomic Monitoring

2021 ◽  
Vol 55 (3) ◽  
pp. 311-326

Background/Aims: The skeleton is a metabolically active organ undergoing continuous remodelling initiated by mesenchymal progenitors present in bone and bone marrow. Under certain pathological conditions this remodelling balance shifts towards increased resorption resulting in weaker bone microarchitecture, and there is consequently a therapeutic need to identify pathways that could inversely enhance bone formation from stem cells. Metabolomics approaches recently applied to stem cell characterisation could help identify new biochemical markers involved in osteogenic differentiation. Methods: Combined intra- and extracellular metabolite profiling was performed by liquid chromatography-mass spectrometry (LC-MS) on human mesenchymal stem cells (MSCs) undergoing osteogenic differentiation in vitro. Using a combination of univariate and multivariate analyses, changes in metabolite and nutrient concentration were monitored in cultures under osteogenic treatment over 10 days. Results: A subset of differentially detected compounds was identified in differentiating cells, suggesting a direct link to metabolic processes involved in osteogenic response. Conclusion: These results highlight new metabolite candidates as potential biomarkers to monitor stem cell differentiation towards the bone lineage.

2019 ◽  
Vol 51 (8) ◽  
pp. 856-863
Author(s):  
Sujin Lee ◽  
Ji-Eun Kim ◽  
Hye-Jin Seo ◽  
Jun-Hyeog Jang

Abstract Extracellular matrix (ECM) including fibronectin (FN) and elastin plays a pivotal role in providing a microenvironment to support tissue regeneration in stem cell therapy. To develop a novel biomimetic ECM for stem cell differentiation, we engineered FN type III 9 and 10 domains fused to elastin-like polypeptides (FN-ELPs). The recombinant FN-ELP fusion protein was expressed in Escherichia coli and purified by inverse transition cycling. Human mesenchymal stem cells (hMSCs) cultured on plates coated with FN-ELP had significantly greater adhesion activity and proliferation than cells grown on non-coated plates. FN-ELP induced the osteogenic differentiation by elevating alkaline phosphatase (ALP) and mineralization activity of hMSCs. Furthermore, the osteogenic marker gene expressions of ALP, collagen type I (Col I), osteopontin (OPN), and transcriptional coactivator with a PDZ-binding motif (TAZ) were increased in hMSCs cultured on plates coated with FN-ELP. We reported a novel biomimetic ECM with potential for bone regeneration that promotes the osteogenic differentiation of hMSCs.


2015 ◽  
Vol 3 (16) ◽  
pp. 3150-3168 ◽  
Author(s):  
Sunil Kumar Boda ◽  
Greeshma Thrivikraman ◽  
Bikramjit Basu

Substrate magnetization as a tool for modulating the osteogenesis of human mesenchymal stem cells for bone tissue engineering applications.


PLoS ONE ◽  
2013 ◽  
Vol 8 (6) ◽  
pp. e65943 ◽  
Author(s):  
Luisa M. Schäck ◽  
Sandra Noack ◽  
Ramona Winkler ◽  
Gesa Wißmann ◽  
Peter Behrens ◽  
...  

Author(s):  
Amit Paul ◽  
David Franz ◽  
Sumaira Yahya ◽  
Shan Sun ◽  
Michael Cho

Recent evidence suggests that stem cell differentiation can be regulated by modulation of the cell’s biomechanics. The cytoskeletal structures and arrangements in stem cells undergoing differentiation are dramatically altered, and these alterations vary by lineage. The complexity of events associated with the transformation of these precursor cells leaves many questions unanswered about morphological, structural, proteomic, and functional changes in differentiating stem cells. A thorough understanding of stem cell behavior, both experimentally and computationally, would allow for the development of more effective approaches to the expansion of stem cells in vitro and for the regulation of their commitment to a specific phenotype.


2019 ◽  
Vol 513 (1) ◽  
pp. 159-165 ◽  
Author(s):  
Sara Castiglioni ◽  
Valentina Romeo ◽  
Laura Locatelli ◽  
Monica Zocchi ◽  
Silvia Zecchini ◽  
...  

Nanoscale ◽  
2011 ◽  
Vol 3 (2) ◽  
pp. 401-409 ◽  
Author(s):  
Nora Hild ◽  
Oliver D. Schneider ◽  
Dirk Mohn ◽  
Norman A. Luechinger ◽  
Fabian M. Koehler ◽  
...  

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