Polyurethane and polyurethane/hydroxyapatite scaffold in a three-dimensional culture system.
Mohammad Mousaei GhasroldashtMaddalena MastrogiacomoFahimeh AkbarianAtefeh RezaeianPublished in: Cell biology international (2022)
Designing a new scaffold with an optimal ability of osteogenesis differentiation is a significant step bone tissue engineering along with the growing demands for bone craft in recent decades. Herein, we used Polyurethane (PU), a novel biocompatible and flexible polymer, and Hydroxyapatite (HA), the major component of human hard tissues matrix for developing new scaffolds and analyzing the in vitro osteogenic differentiation potential of human adipose-derived mesenchymal stem cells (Ad-MSCs) in basal and induction media. Gene expression analysis was performed to evaluate the expression level of four osteogenic differentiation genes. MTT assays were also done to assess the attachment and proliferation of the cells after 7 and 21 days of seeding to scaffolds. The expression level of RUNX2 was increased in seeded cells on PU/HA scaffolds compared with the PU. Cellular adhesion and proliferation of the Ad-MSCs were higher in PU/HA than PU scaffolds according to the histology analysis. The PU and PU/HA scaffolds supported the attachment, proliferation, and differentiation of Ad-MSCs, and they are suitable candidates for producing constructs in bone regeneration. However, further in-vitro and in-vivo studies on these scaffolds are needed to introduce an appropriate candidate for clinical bone regeneration.
Keyphrases
- tissue engineering
- bone regeneration
- mesenchymal stem cells
- induced apoptosis
- signaling pathway
- poor prognosis
- endothelial cells
- umbilical cord
- bone marrow
- cell cycle arrest
- genome wide
- gene expression
- genome wide identification
- transcription factor
- insulin resistance
- drug delivery
- binding protein
- adipose tissue
- endoplasmic reticulum stress
- copy number
- induced pluripotent stem cells
- risk assessment
- climate change
- biofilm formation
- cell proliferation
- human health
- soft tissue
- data analysis
- cell adhesion
- bioinformatics analysis