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Hu X, Yang S, Zhao W, Zhang Z, Qiao L, Wu H, Su Q, Che L, Zhou K, Li K, He J. Novel multi-functional microsphere scaffold with shape memory function for bone regeneration. BIOMATERIALS ADVANCES 2024; 163:213958. [PMID: 39053385 DOI: 10.1016/j.bioadv.2024.213958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/09/2024] [Accepted: 07/12/2024] [Indexed: 07/27/2024]
Abstract
Irregular bone defects caused by trauma and bone diseases provide a complex implant environment for surgery. Traditional implants often fail to integrate well with the surrounding bone defect interface, therefore, developing an artificial bone scaffold that can adapt to irregular bone defect boundaries is of significant importance for bone defect repair. This study successfully utilized a shape memory ternary copolymer polylactic acid-trimethylene carbonate-hydroxyacetic acid (PLLA-TMC-GA) and dopamine-modified nano-hydroxyapatite (PHA) composite to construct a temperature-responsive bone repair scaffold (PTG/PHA), thereby enhancing the interface compatibility between the implant and the surrounding environment. The addition of PHA has effectively improved the hydrophilicity of the stent and significantly increased its mechanical strength. Furthermore, the Sodium alginate (SA) hydrogel loaded with Icariin (Ica) coated on the stent surface promotes the growth and differentiation of bone cells through the drug-scaffold synergistic effect. Both in vivo and in vitro experiments have shown that the synergistic effect of the composite stent with Icariin significantly enhances the repair of bone defects. This study provides a promising tissue engineering method for the repair of irregular bone defects.
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Affiliation(s)
- Xulin Hu
- Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu University, Chengdu, Sichuan 610081, China; Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Shuhao Yang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China
| | - Weiming Zhao
- Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu University, Chengdu, Sichuan 610081, China
| | - Zhen Zhang
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liang Qiao
- Henan Univ Sci & Technol, Affiliated Hosp 1, Key Lab Neuromol Biol, Coll Clin Med, Luoyang, Henan 471003, China
| | - Haoming Wu
- Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu University, Chengdu, Sichuan 610081, China
| | - Qiao Su
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Lanyu Che
- Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu University, Chengdu, Sichuan 610081, China
| | - Kai Zhou
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Kainan Li
- Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu University, Chengdu, Sichuan 610081, China.
| | - Jian He
- College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan 471000, China.
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Qi J, Xiao J, Zhang T, Zhang Y, Xiong C. Investigation of the nano-hydroxyapatite with different surface modifications on the properties of poly(lactide-co-glycolide acid)/poly(trimethylene carbonate)/nano-hydroxyapatite composites. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-020-04783-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Hu XL, Mi S, Lu JL, Cao JF, Xing LY, Lin ZD, Chen DL, Lu Y, He J, Xiong CD, Li Q. In vitro degradation behavior of shape memory PLLA-TMC random copolymers. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Qi J, Zhang Y, Liu X, Zhang Q, Xiong C. Preparation and properties of a biodegradable poly(lactide- co-glycolide)/poly(trimethylene carbonate) porous composite scaffold for bone tissue engineering. NEW J CHEM 2020. [DOI: 10.1039/d0nj02921a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
New biodegradable PLGA/PTMC composite porous scaffold with high porosity, mechanical properties, significant homogeneous, interconnected pore network and good biocompatibility.
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Affiliation(s)
- Jin Qi
- Chengdu institute of Organical Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
- University of the Chinese Academy of Sciences
| | - Yu Zhang
- Chengdu institute of Organical Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
- University of the Chinese Academy of Sciences
| | - Xiliang Liu
- Chengdu institute of Organical Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
- University of the Chinese Academy of Sciences
| | - Qianmao Zhang
- Chengdu institute of Organical Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
- University of the Chinese Academy of Sciences
| | - Chengdong Xiong
- Chengdu institute of Organical Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
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Qi J, Zhang T, Xiao J, Zhang Q, Xiong C. The effect of ethenyltrimethoxysilane modification of nano bioactive glass on the physiochemical and mechanical properties and in vitro bioactivity of poly(lactide- co-glycolide)/poly(trimethylene carbonate) composite. NEW J CHEM 2020. [DOI: 10.1039/d0nj03859h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The new biodegradable PLGA/PTMC/YDH-NBG composite with excellent mechanical properties and good in vitro bioactivity.
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Affiliation(s)
- Jin Qi
- Chengdu Institute of Organical Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
- University of the Chinese Academy of Sciences
| | - Tianyao Zhang
- Chengdu Institute of Organical Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
| | - Jianping Xiao
- Chengdu Institute of Organical Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
| | - Qianmao Zhang
- Chengdu Institute of Organical Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
| | - Chengdong Xiong
- Chengdu Institute of Organical Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
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