scholarly journals Mass Production of Mesenchymal Stem Cells — Impact of Bioreactor Design and Flow Conditions on Proliferation and Differentiation

10.5772/59385 ◽  
2014 ◽  
Author(s):  
Valentin Jossen ◽  
Ralf Pörtner ◽  
Stephan C. Kaiser ◽  
Matthias Kraume ◽  
Dieter Eibl ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Mass Production ◽  
Flow Conditions ◽  
Bioreactor Design ◽  
Proliferation And Differentiation

scholarly journals Fluid Flow Mechanical Stimulation-Assisted Cartridge Device for the Osteogenic Differentiation of Human Mesenchymal Stem Cells

Micromachines ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 927
Author(s):  
Ki-Taek Lim ◽  
Dinesh-K. Patel ◽  
Sayan-Deb Dutta ◽  
Keya Ganguly
Keyword(s):  
Tissue Engineering ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Fluid Flow ◽  
Osteogenic Differentiation ◽  
Flow Condition ◽  
Cultured Cells ◽  
Human Mesenchymal Stem Cells ◽  
Proliferation And Differentiation ◽  
Static Conditions

Human mesenchymal stem cells (hMSCs) have the potential to differentiate into different types of mesodermal tissues. In vitro proliferation and differentiation of hMSCs are necessary for bone regeneration in tissue engineering. The present study aimed to design and develop a fluid flow mechanically-assisted cartridge device to enhance the osteogenic differentiation of hMSCs. We used the fluorescence-activated cell-sorting method to analyze the multipotent properties of hMSCs and found that the cultured cells retained their stemness potential. We also evaluated the cell viabilities of the cultured cells via water-soluble tetrazolium salt 1 (WST-1) assay under different rates of flow (0.035, 0.21, and 0.35 mL/min) and static conditions and found that the cell growth rate was approximately 12% higher in the 0.035 mL/min flow condition than the other conditions. Moreover, the cultured cells were healthy and adhered properly to the culture substrate. Enhanced mineralization and alkaline phosphatase activity were also observed under different perfusion conditions compared to the static conditions, indicating that the applied conditions play important roles in the proliferation and differentiation of hMSCs. Furthermore, we determined the expression levels of osteogenesis-related genes, including the runt-related protein 2 (Runx2), collagen type I (Col1), osteopontin (OPN), and osteocalcin (OCN), under various perfusion vis-à-vis static conditions and found that they were significantly affected by the applied conditions. Furthermore, the fluorescence intensities of OCN and OPN osteogenic gene markers were found to be enhanced in the 0.035 mL/min flow condition compared to the control, indicating that it was a suitable condition for osteogenic differentiation. Taken together, the findings of this study reveal that the developed cartridge device promotes the proliferation and differentiation of hMSCs and can potentially be used in the field of tissue engineering.

scholarly journals Mesenchymal Stem Cells after Polytrauma: Actor and Target

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Markus Huber-Lang ◽  
Rebecca Wiegner ◽  
Lorenz Lampl ◽  
Rolf E. Brenner
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Healing Process ◽  
Severe Trauma ◽  
Signaling Mechanisms ◽  
Multipotent Cells ◽  
Proliferation And Differentiation ◽  
Tissue Trauma ◽  
Molecular Patterns ◽  
Severe Tissue

Mesenchymal stem cells (MSCs) are multipotent cells that are considered indispensable in regeneration processes after tissue trauma. MSCs are recruited to damaged areas via several chemoattractant pathways where they function as “actors” in the healing process by the secretion of manifold pro- and anti-inflammatory, antimicrobial, pro- and anticoagulatory, and trophic/angiogenic factors, but also by proliferation and differentiation into the required cells. On the other hand, MSCs represent “targets” during the pathophysiological conditions after severe trauma, when excessively generated inflammatory mediators, complement activation factors, and damage- and pathogen-associated molecular patterns challenge MSCs and alter their functionality. This in turn leads to complement opsonization, lysis, clearance by macrophages, and reduced migratory and regenerative abilities which culminate in impaired tissue repair. We summarize relevant cellular and signaling mechanisms and provide an up-to-date overview about promising future therapeutic MSC strategies in the context of severe tissue trauma.

scholarly journals Effects of Co-Culture of Graphene Oxide Scaffolds with Different Concentrations and Umbilical Mesenchymal Stem Cells on the Proliferation and Differentiation of Stem Cells

2021 ◽  
Author(s):  
Aifeng Liu ◽  
Jixin Chen ◽  
Shuwei Gong ◽  
Qiang Wei ◽  
Ye Yuan
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Graphene Oxide ◽  
Stem Cell ◽  
Mesenchymal Stem Cell ◽  
Umbilical Cord ◽  
High Porosity ◽  
Proliferation And Differentiation ◽  
Scaffold Materials ◽  
The Impact

Abstract The main role of the scaffold materials is to enable cells to survive in the scaffold binding as while as to further promote their proliferation and differentiation ability. For mesenchymal stem cell, the scaffold could provide an environment for them to maintain their phenotype, and synthesize all necessary molecules and proteins. Generally, scaffold materials for stem cell need to possess basic characteristics such as high porosity, large surface area, surface rigidity and biodegradability. Thus, the two-dimensional graphene oxide (GO) with oxygen-containing functional groups may be suitable scaffold materials for mesenchymal stem cell culture.MethodsIn this study, the effect of GO on the value-added differentiation activity of mesenchymal stem cell was systematically investigated. ResultsIt was found that low concentration of GO and sufficient concentration of umbilical cord mesenchymal stem cells are suitable for the second Co-culture. Furthermore, the addition of hyaluronic acid will make this culture more evenly distributed. ConclusionsThe adsorption of GO on umbilical cord mesenchymal stem cells can also make the two closely linked, which avoids the impact of animal joint activities on cells.

Advanced platelet-rich fibrin extract treatment promotes the proliferation and differentiation of Human Adipose-Derived Mesenchymal Stem Cells through activation of tryptophan metabolism

2021 ◽  
Vol 16 ◽  
Author(s):  
Guan-Ming Lu ◽  
Li-Yuan Jiang ◽  
Dong-Lin Huang ◽  
Yong-Xian Rong ◽  
Yang-Hong Li ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Regulatory Network ◽  
Expression Profiles ◽  
Differential Expression Analysis ◽  
Tryptophan Metabolism ◽  
Enzyme Linked Immunosorbent Assay ◽  
Platelet Rich Fibrin ◽  
The Core ◽  
Proliferation And Differentiation

Background: Advanced platelet-rich fibrin extract (APRFE) contains a high concentration of various cytokines that are helpful for improving stem cells repair function. Objective: However, the underlying mechanism of APRFE improving stem cell repairing is not clear. Methods: We produced APRFE by centrifuging fresh peripheral blood samples and isolated and identified human adipose-derived mesenchymal stem cells (ADMSCs). The abundance of cytokines contained in APRFE was detected by the Enzyme-linked immunosorbent assay (ELISA). The ADMSCs treated with or without APRFE were collected for transcriptome sequencing. Results: Based on the sequencing data, the expression profiles were contracted. The differentially expressed genes and lncRNA (DEGs and DElncRNAs) were obtained using for the differential expression analysis. The lncRNA-miRNA-mRNA network was constructed based on the miRNet database. The further enrichment analysis results showed that the biological functions were mainly related to proliferation, differentiation, and cell-cell function. To explore the role of APRFE, the protein-protein interaction network was constructed among the cytokines included in APRFE and DEGs. Furthermore, we constructed the global regulatory network based on the RNAInter and TRRUST database. The pathways in the global regulatory network were considered as the core pathways. We found that the DEGs in the core pathways were associated with stemness scores. Conclusion: In summary, we predicted that APRFE activated three pathways (tryptophan metabolism, mTOR signaling pathway, and adipocytokine signaling) to promote the proliferation and differentiation of ADMSCs. The finding may be helpful for guiding the application of ADMSCs in the clinic.

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