A novel vehicle-like drug delivery 3D printing scaffold and its applications for a rat femoral bone repairing in vitro and in vivo

The high surface area ratio and special structure of mesoporous bioactive glass (MBG) endow it with excellent physical adsorption of various drugs without destroying the chemical activity. Silicate 1393 bioactive glass (1393) is famous for its fantastic biodegradability and osteogenesis. Herein, we...

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Bibliographic Details
Published in:International journal of biological sciences 2020-01, Vol.16 (11), p.1821-1832
Main Authors: Wang, Hui, Deng, Zhengwei, Chen, Jing, Qi, Xin, Pang, Libing, Lin, Bocai, Adib, Yan Teik Yuin, Miao, Na, Wang, Deping, Zhang, Yadong, Li, Jiusheng, Zeng, Xiangqiong
Format: Article
Language:English
Subjects:
3-D printers
Alkaline phosphatase
Biodegradability
Biodegradation
Bioglass
Biological activity
Biomedical materials
Bone diseases
Bone healing
Bone morphogenetic protein 2
Bones
Cbfa-1 protein
Chemical activity
Controlled release
Cytokines
Deoxyribonucleic acid
DNA
Drug delivery
Femur
Gene expression
In vivo methods and tests
Medical treatment
Mesenchyme
Metal oxides
Microscopy
Mineralization
Morphology
Orthopedics
Osteogenesis
Printing
Research Paper
Scaffolds
Skin & tissue grafts
Staphylococcus aureus
Stem cell transplantation
Stem cells
Three dimensional printing
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Summary:The high surface area ratio and special structure of mesoporous bioactive glass (MBG) endow it with excellent physical adsorption of various drugs without destroying the chemical activity. Silicate 1393 bioactive glass (1393) is famous for its fantastic biodegradability and osteogenesis. Herein, we have built a novel vehicle-like drug delivery 3D printing scaffold with multiplexed drug delivery capacity by coating MBG on the surface of 1393 (1393@MBG). Furthermore, we have applied DEX and BMP-2 on the 1393@MBG scaffold to endow it with antibacterial and osteogenic properties. Results indicated that this 1393@MBG scaffold could effectively load and controlled release BMP-2, DNA and DEX, which can be applied for orthopedic treatment. The study showed that the DEX loaded 1393@MBG exhibited excellent antibacterial ability, which was evaluated by ( ), and the BMP-2 loaded 1393@MBG can improve the alkaline phosphatase (ALP) activity and upregulate the expression of osteogenesis-related genes (OCN and RUNX2) of human bone mesenchymal stem cells (hBMSCs). Moreover, the study further confirmed that the BMP-2 loaded 1393@MBG group showed better osteogenic capacity as compared to that of the 1393 group in a rat femoral defect. Together, these results suggested that the vehicle-like drug delivery 3D printing scaffold 1393@MBG could be a promising candidate for bone repair and relative bone disease treatment.
ISSN:1449-2288
1449-2288
DOI:10.7150/ijbs.37552