Mechanisms for osteogenic differentiation of human mesenchymal stem cells induced by fluid shear stress

Abstract Background: Combination of mesenchymal stem cells (MSCs) and biomaterials is a rapidly growing approach in regenerative medicine particularly for chronic degenerative disorders including osteoarthritis and osteoporosis. The present study examined the effect of biomaterial scaffolds on equine adipose derived MSCs morphology, viability, adherence, migration and osteogenic differentiation.Methods: MSCs were cultivated in conjunction with collagen CultiSpher-S Microcarrier (MC), nanocomposite xerogels B30 and combined B30 with strontium (B30Str) biomaterials in osteogenic differentiation medium either under static or mechanical fluid shear stress (FSS) culture conditions. The data were generated by histological means, live cell imaging, cell viability, adherence and migration assays, semi-quantification of alkaline phosphatase (ALP) activity and quantification of the osteogenic markers runt related transcription factor 2 (Runx2) and alkaline phosphatase (ALP) expression.Results: The data revealed that combined mechanical FSS with MC but not B30 enhanced MSCs viability and promoted their migration. Combined osteogenic medium with MC, B30 and B30Str increased ALP activity compared to cultivation in basal medium. Osteogenic induction with MC, B30 and B30Str resulted in diffused matrix mineralization. The combined osteogenic induction with biomaterials under mechanical FSS increased Runx2 protein expression either in comparison to those cells cultivated in BM or those cells induced under static culture. Runx2 and ALP expression was upregulated following combined osteogenic differentiation together with B30 and B30Str regardless of static or FSS culture.Conclusions: Taken together, the data revealed that FSS in conjunction with biomaterials promoted osteogenic differentiation of MSCs. This combination may be considered as a marked improvement for clinical applications to cure bone defects.

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Combined macromolecule biomaterials together with fluid shear stress promote the osteogenic differentiation capacity of equine adipose-derived mesenchymal stem cells

Stem Cell Research & Therapy ◽

10.1186/s13287-021-02146-7 ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Mohamed I. Elashry ◽

Nadine Baulig ◽

Alena-Svenja Wagner ◽

Michele C. Klymiuk ◽

Benjamin Kruppke ◽

...

Keyword(s):

Stem Cells ◽

Alkaline Phosphatase ◽

Shear Stress ◽

Mesenchymal Stem Cells ◽

Osteogenic Differentiation ◽

Fluid Shear Stress ◽

Fluid Shear ◽

Matrix Mineralization ◽

Alp Activity ◽

Osteogenic Induction

Abstract Background Combination of mesenchymal stem cells (MSCs) and biomaterials is a rapidly growing approach in regenerative medicine particularly for chronic degenerative disorders including osteoarthritis and osteoporosis. The present study examined the effect of biomaterial scaffolds on equine adipose-derived MSC morphology, viability, adherence, migration, and osteogenic differentiation. Methods MSCs were cultivated in conjunction with collagen CultiSpher-S Microcarrier (MC), nanocomposite xerogels B30 and combined B30 with strontium (B30Str) biomaterials in osteogenic differentiation medium either under static or mechanical fluid shear stress (FSS) culture conditions. The data were generated by histological means, live cell imaging, cell viability, adherence and migration assays, semi-quantification of alkaline phosphatase (ALP) activity, and quantification of the osteogenic markers runt-related transcription factor 2 (Runx2) and alkaline phosphatase (ALP) expression. Results The data revealed that combined mechanical FSS with MC but not B30 enhanced MSC viability and promoted their migration. Combined osteogenic medium with MC, B30, and B30Str increased ALP activity compared to cultivation in basal medium. Osteogenic induction with MC, B30, and B30Str resulted in diffused matrix mineralization. The combined osteogenic induction with biomaterials under mechanical FSS increased Runx2 protein expression either in comparison to those cells cultivated in BM or those cells induced under static culture. Runx2 and ALP expression was upregulated following combined osteogenic differentiation together with B30 and B30Str regardless of static or FSS culture. Conclusions Taken together, the data revealed that FSS in conjunction with biomaterials promoted osteogenic differentiation of MSCs. This combination may be considered as a marked improvement for clinical applications to cure bone defects.

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Combined Macromolecule biomaterials together with fluid shear stress promote the osteogenic differentiation capacity of equine adipose -derived mesenchymal stem cells

10.21203/rs.3.rs-38206/v2 ◽

2020 ◽

Author(s):

Mohamed I. Elashry ◽

Nadine Baulig ◽

Alena-Svenja Wagner ◽

Michele C. Klymiuk ◽

Benjamin Kruppke ◽

...

Keyword(s):

Stem Cells ◽

Alkaline Phosphatase ◽

Shear Stress ◽

Mesenchymal Stem Cells ◽

Osteogenic Differentiation ◽

Fluid Shear Stress ◽

Basal Medium ◽

Fluid Shear ◽

Alp Activity ◽

Osteogenic Induction

Abstract Background: Combination of stem cells and biomaterials is a rapidly growing approach in regenerative medicine particularly for chronic degenerative disorders including osteoarthritis and osteoporosis. The present study examined the effect of biomaterial scaffolds on equine adipose-derived mesenchymal stem cells (MSCs) morphology, viability, adherence, migration and osteogenic differentiation. Methods: MSCs were cultivated in conjunction with collagen CultiSpher-S Microcarrier (MC), nanocomposite xerogels B30 and combined B30 with strontium (B30Str) biomaterials in osteogenic differentiation medium either under static or mechanical fluid shear stress (FSS) culture conditions. The data were generated by histological means, live cell imaging, cell viability, adherence and migration assays, semi-quantification of alkaline phosphatase (ALP) activity and quantification of the osteogenic markers runt related transcription factor 2 (Runx2) and alkaline phosphatase (ALP) expression. Results: The data revealed that combined mechanical fluid shear stress (FSS) with MC but not B30 enhanced MSCs viability and promoted their migration. Combined osteogenic medium with MC, B30 and B30Str increased ALP activity compared to cultivation in basal medium. Osteogenic induction with MC, B30 and B30Str resulted in diffused matrix mineralization. The combined osteogenic induction with biomaterials under mechanical FSS increased Runx2 protein expression either in comparison to those cells cultivated in basal medium (BM) or those cells induced under static culture. Runx2 and ALP expression was upregulated following combined osteogenic differentiation together with B30 and B30Str regardless of static or FSS culture. Conclusions: Taken together, the data revealed that FSS in conjunction with biomaterials promoted osteogenic differentiation of MSCs. This combination may be considered as a marked improvement for clinical applications to cure bone defects.

Download Full-text