The influence of metal-based biomaterials functionalized with sphingosine-1-phosphate on the cellular response and osteogenic differentaion potenial of human adipose derived mesenchymal stem cells in vitro

Journal of Biomaterials Applications
Krzysztof MaryczKarolina Moszak

Abstract

In this study, stable, homogenous and thin titania dioxide coatings (TiO2) on stainless steel substrate doped with two dosages of bioactive sphingolipids S1P were fabricated using the sol-gel method. S1P belongs to a family of sphingolipids acting as important extracellular signaling molecules and chemoattractants. This study investigated the effect of TiO2, doped with S1P in two different dosages on cellular response as well as osteogenic differentiation potential of human adipose derived multipotent stromal stem cells (hASC). The authors have shown that S1P mediates hASCs morphology, proliferation activity and population doubling time in a dose-dependent manner. They have also demonstrated that functionalization of TiO2coating with a higher dosage of S1P, i.e. 80 ng/ml [(TiO2/S1P(CII)] activated both S1PR type 1 and type 2 on mRNA level. The results indicated an increase in secretion of BMP-2, Osteopontin and Osteocalcin by osteoblasts progenitor when cultured on [TiO2/S1P(CIIm)]. In addition, the authors observed the highest extracellular matrix mineralization as well as osteonodules formation by the osteoblasts precursors when cultured onto [TiO2/S1P(CIIm)].

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Citations

Nov 11, 2019·International Journal of Molecular Sciences·Chiara SassoliElisabetta Meacci
Jul 7, 2019·Biochemical and Biophysical Research Communications·Xin YanManxiang Li

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Methods Mentioned

BETA
AFM
X-ray
FACS
total hip arthroplasty
flow cytometry
fluorescence microscopy
ELISA
enzyme-linked
Reverse Transcription Polymerase Chain Reaction
ELISAs

Software Mentioned

FlowJo X
Treestar
GraphPad Prism

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