ArticleMaterials science & engineering. C, Materials for biological applications2021
Osteo-mucosal engineered construct: In situ adhesion of hard-soft tissues.
Article in Materials science & engineering. C, Materials for biological applications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 15 citations in OpenAlex.
- Optimization of dental adhesive interfaces using tissue biomodulation with DESIGNER biopolymers.Dental materials : official publication of the Academy of Dental Materials · 2025Article
- Tyrosinases: a family of copper-containing metalloenzymes.Chemtexts · 2024Article
- Development of fibroblast/endothelial cell-seeded collagen scaffolds for in vitro prevascularization.Journal of biomedical materials research. Part B, Applied biomaterials · 2023Article
- Enzyme-Triggered Crosslinked Hybrid Hydrogels for Bone Tissue Engineering.Materials (Basel, Switzerland) · 2022Review
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Authors and funding
6 authors at 2 institutions in 3 countries.
Funding
Abstract
objectivesThe aim of this work was to combine engineered hard and soft tissue, adopting a new method for interfacial adhesion of osteo-mucosal construct. We hypothesized that the chemical procedure involved in this method not only adheres the components, but also improves the cell growth inside them.
methods3D-printed functionally-graded porous hard-tissue scaffolds were characterized, functionalized by aminolysis and tyrosinase, and accommodated by human osteoblast cells. Introducing amino groups through aminolysis and inducing dopaquinones by tyrosinase can take part in the Michael additions to cause the adhesion. Subsequently, fully-differentiated engineered oral mucosa was formed directly on the surface of hard tissue. Constructs were assessed in term of morphology, structure, chemical composition, histology, and cytocompatibility. Interfacial adhesion was compared to a control group prepared by using a biological glue for the attachment of the soft and hard tissues.
resultsThe data confirmed higher proliferation of osteoblast cells via aminolysis and improved osteoblast cells distribution and differentiation by incorporation of tyrosinase in collagen. There was evidence of multilayered, stratified epithelium on the osteo-mucosal model with viable fibroblasts and osteoblasts within the lamina propria and bone tissue layers. Our method of adhesion resulted in cohesive debonding within the engineered soft tissue; while in the control group, adhesive debonding and complete separation of the oral mucosa from the hard tissue was observed. Although the shear strength of the osteo-mucosal model (157.6 kDa ± 25.1) was slightly higher than that of the control group (149.4 kDa ± 23.1), there was no statistically significant difference between them (p > 0.05). However, the advantage of our in situ adhesion approach is the absence of a barrier like glue which can disrupt direct cellular communications between tissues. SIGNIFICANCE: This study provides a novel method of directly combining tissue-engineered human bone with oral mucosa, which has the potential to improve cell-ingrowth and tissue integration. This engineered tissue construct, after further optimization, can be used clinically as a graft material in various oral surgeries and can also be employed as an in vitro model to investigate many aspects of oral diseases and examine dental materials and oral health care products as a replacement of in vivo models.
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