1
|
Shao H, Zhang Q, Sun M, Wu M, Sun X, Wang Q, Tong S. Effects of hydroxyapatite-coated porous titanium scaffolds functionalized by exosomes on the regeneration and repair of irregular bone. Front Bioeng Biotechnol 2023; 11:1283811. [PMID: 38026868 PMCID: PMC10644107 DOI: 10.3389/fbioe.2023.1283811] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
As a traditional bone implant material, titanium (Ti) and its alloys have the disadvantages of lack of biological activity and susceptibility to stress shielding effect. Adipose stem cells (ADSCs) and exosomes were combined with the scaffold material in the current work to effectively create a hydroxyapatite (HA) coated porous titanium alloy scaffold that can load ADSCs and release exosomes over time. The composite made up for the drawbacks of traditional titanium alloy materials with higher mechanical characteristics and a quicker rate of osseointegration. Exosomes (Exos) are capable of promoting the development of ADSCs in porous titanium alloy scaffolds with HA coating, based on experimental findings from in vitro and in vivo research. Additionally, compared to pure Ti implants, the HA scaffolds loaded with adipose stem cell exosomes demonstrated improved bone regeneration capability and bone integration ability. It offers a theoretical foundation for the combined use of stem cell treatment and bone tissue engineering, as well as a design concept for the creation and use of novel clinical bone defect repair materials.
Collapse
Affiliation(s)
- Hanyu Shao
- Department of Plastic Surgery, First Hospital of China Medical University, Shenyang, China
| | - Qiyue Zhang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Mingman Sun
- Department of Plastic Surgery, First Hospital of China Medical University, Shenyang, China
| | - Ming Wu
- Department of Plastic Surgery, First Hospital of China Medical University, Shenyang, China
| | - Xu Sun
- Department of Plastic Surgery, First Hospital of China Medical University, Shenyang, China
| | - Qiang Wang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Shuang Tong
- Department of Plastic Surgery, First Hospital of China Medical University, Shenyang, China
| |
Collapse
|
2
|
Wan X, Li Z, Yu W, Wang A, Ke X, Guo H, Su J, Li L, Gui Q, Zhao S, Robertson J, Zhang Z, Guo Y. Machine Learning Paves the Way for High Entropy Compounds Exploration: Challenges, Progress, and Outlook. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2305192. [PMID: 37688451 DOI: 10.1002/adma.202305192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/08/2023] [Indexed: 09/10/2023]
Abstract
Machine learning (ML) has emerged as a powerful tool in the research field of high entropy compounds (HECs), which have gained worldwide attention due to their vast compositional space and abundant regulatability. However, the complex structure space of HEC poses challenges to traditional experimental and computational approaches, necessitating the adoption of machine learning. Microscopically, machine learning can model the Hamiltonian of the HEC system, enabling atomic-level property investigations, while macroscopically, it can analyze macroscopic material characteristics such as hardness, melting point, and ductility. Various machine learning algorithms, both traditional methods and deep neural networks, can be employed in HEC research. Comprehensive and accurate data collection, feature engineering, and model training and selection through cross-validation are crucial for establishing excellent ML models. ML also holds promise in analyzing phase structures and stability, constructing potentials in simulations, and facilitating the design of functional materials. Although some domains, such as magnetic and device materials, still require further exploration, machine learning's potential in HEC research is substantial. Consequently, machine learning has become an indispensable tool in understanding and exploiting the capabilities of HEC, serving as the foundation for the new paradigm of Artificial-intelligence-assisted material exploration.
Collapse
Affiliation(s)
- Xuhao Wan
- School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Zeyuan Li
- School of Power and Mechanical Engineering, Wuhan University, Wuhan, Hubei, 430072, China
| | - Wei Yu
- School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Anyang Wang
- School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Xue Ke
- School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Hailing Guo
- School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Jinhao Su
- School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Li Li
- The Institute of Technological Sciences, Wuhan University, Wuhan, Hubei, 430072, China
| | - Qingzhong Gui
- School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Songpeng Zhao
- The Institute of Technological Sciences, Wuhan University, Wuhan, Hubei, 430072, China
| | - John Robertson
- Department of Engineering, Cambridge University, Cambridge, CB2 1PZ, UK
| | - Zhaofu Zhang
- The Institute of Technological Sciences, Wuhan University, Wuhan, Hubei, 430072, China
| | - Yuzheng Guo
- School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| |
Collapse
|
3
|
Sun X, Yang S, Tong S, Guo S. Study on Exosomes Promoting the Osteogenic Differentiation of ADSCs in Graphene Porous Titanium Alloy Scaffolds. Front Bioeng Biotechnol 2022; 10:905511. [PMID: 35733528 PMCID: PMC9207277 DOI: 10.3389/fbioe.2022.905511] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 05/16/2022] [Indexed: 12/02/2022] Open
Abstract
Titanium and titanium alloys (Ti6Al4V and Ti) have been widely used in bone tissue engineering to repair maxillofacial bone defects caused by traumas and tumors. However, such materials are also bio-inert, which does not match the elastic modulus of bone. Therefore, different surface modifications have been proposed for clinical application. Based on the use of traditional titanium alloy in the field of bone repair defects, we prepared a compound Gr-Ti scaffold with ADSC-derived Exos. The results showed that Gr-Ti scaffolds have low toxicity and good biocompatibility, which can promote the adhesion and osteogenic differentiation of ADSCs. Exos played a role in promoting osteogenic differentiation of ADSCs: the mRNA levels of RUNX2, ALP, and Osterix in the Gr-Ti/Exos group were significantly higher than those in the Gr-Ti group, which process related to the Wnt signaling pathway. Gr-Ti scaffolds with ADSCs and ADSC-derived Exos successfully repaired rabbit mandibular defects. The bone mineral density and the bending strength of the Gr-Ti/Exos group was significantly higher than that of the Gr-Ti group. This study provides a theoretical basis for the research and development of new clinical bone repair materials.
Collapse
Affiliation(s)
| | | | | | - Shu Guo
- *Correspondence: Shu Guo, ; Shuang Tong,
| |
Collapse
|
4
|
Wu Y, Zhou H, Zeng Y, Xie H, Ma D, Wang Z, Liang H. Recent Advances in Copper-Doped Titanium Implants. MATERIALS 2022; 15:ma15072342. [PMID: 35407675 PMCID: PMC8999642 DOI: 10.3390/ma15072342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/11/2022] [Accepted: 03/18/2022] [Indexed: 01/27/2023]
Abstract
Titanium (Ti) and its alloys have been extensively used as implant materials in clinical practice due to their high corrosion resistance, light weight and excellent biocompatibility. However, the insufficient intrinsic osteogenic capacity of Ti and its alloys impedes bone repair and regeneration, and implant-related infection or inflammation remains the leading cause of implant failure. Bacterial infections or inflammatory diseases constitute severe threats to human health. The physicochemical properties of the material are critical to the success of clinical procedures, and the doping of Cu into Ti implants has been confirmed to be capable of enhancing the bone repair/regeneration, angiogenesis and antibacterial capability. This review outlines the recent advances in the design and preparation of Cu-doped Ti and Ti alloy implants, with a special focus on various methods, including plasma immersion implantation, magnetron sputtering, galvanic deposition, microarc oxidation and sol-gel synthesis. More importantly, the antibacterial and mechanical properties as well as the corrosion resistance and biocompatibility of Cu-doped Ti implants from different methods are systematically reviewed, and their prospects and limitations are also discussed.
Collapse
|
7
|
Lv Y, Wang B, Liu G, Tang Y, Lu E, Xie K, Lan C, Liu J, Qin Z, Wang L. Metal Material, Properties and Design Methods of Porous Biomedical Scaffolds for Additive Manufacturing: A Review. Front Bioeng Biotechnol 2021; 9:641130. [PMID: 33842445 PMCID: PMC8033174 DOI: 10.3389/fbioe.2021.641130] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 02/23/2021] [Indexed: 12/03/2022] Open
Abstract
Design an implant similar to the human bone is one of the critical problems in bone tissue engineering. Metal porous scaffolds have good prospects in bone tissue replacement due to their matching elastic modulus, better strength, and biocompatibility. However, traditional processing methods are challenging to fabricate scaffolds with a porous structure, limiting the development of porous scaffolds. With the advancement of additive manufacturing (AM) and computer-aided technologies, the development of porous metal scaffolds also ushers in unprecedented opportunities. In recent years, many new metal materials and innovative design methods are used to fabricate porous scaffolds with excellent mechanical properties and biocompatibility. This article reviews the research progress of porous metal scaffolds, and introduces the AM technologies used in porous metal scaffolds. Then the applications of different metal materials in bone scaffolds are summarized, and the advantages and limitations of various scaffold design methods are discussed. Finally, we look forward to the development prospects of AM in porous metal scaffolds.
Collapse
Affiliation(s)
- Yuting Lv
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, China.,State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, China
| | - Binghao Wang
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, China
| | - Guohao Liu
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, China
| | - Yujin Tang
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Eryi Lu
- Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Kegong Xie
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Changgong Lan
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Jia Liu
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Zhenbo Qin
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin, China
| | - Liqiang Wang
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|