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Zhu B, Zhao Z, Cao S, Sun Y, Wang L, Huang S, Cheng C, Ma L, Qiu L. Highly spontaneous spin polarization engineering of single-atom artificial antioxidases towards efficient ROS elimination and tissue regeneration. NANOSCALE 2024. [PMID: 39037714 DOI: 10.1039/d4nr02104e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
The creation of atomic catalytic centers has emerged as a conducive path to design efficient nanobiocatalysts to serve as artificial antioxidases (AAOs) that can mimic the function of natural antioxidases to scavenge noxious reactive oxygen species (ROS) for protecting stem cells and promoting tissue regeneration. However, the fundamental mechanisms of diverse single-atom sites for ROS biocatalysis remain ambiguous. Herein, we show that highly spontaneous spin polarization mediates the hitherto unclear origin of H2O2-elimination activities in engineering ferromagnetic element (Fe, Co, Ni)-based AAOs with atomic centers. The experimental and theoretical results reveal that Fe-AAO exhibits the best catalase-like kinetics and turnover number, while Co-AAO shows the highest glutathione peroxidase-like activity and turnover number. Furthermore, our investigations prove that both Fe-AAO and Co-AAO can effectively secure the functions of stem cells in high ROS microenvironments and promote the repair of injured tendon tissue by scavenging H2O2 and other ROS. We believe that the proposed highly spontaneous spin polarization engineering of ferromagnetic element-based AAOs will provide essential guidance and practical opportunities for developing efficient AAOs for eliminating ROS, protecting stem cells, and accelerating tissue regeneration.
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Affiliation(s)
- Bihui Zhu
- Department of Medical Ultrasound, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Zhenyang Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Sujiao Cao
- Department of Medical Ultrasound, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Yimin Sun
- West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Liyun Wang
- Department of Medical Ultrasound, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Songya Huang
- Department of Medical Ultrasound, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Lang Ma
- Department of Medical Ultrasound, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Li Qiu
- Department of Medical Ultrasound, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Guan X, Wu S, Ouyang S, Ren S, Cui N, Wu X, Xiang D, Chen W, Yu B, Zhao P, Wang B. Remodeling Microenvironment for Implant-Associated Osteomyelitis by Dual Metal Peroxide. Adv Healthc Mater 2024; 13:e2303529. [PMID: 38430010 DOI: 10.1002/adhm.202303529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/02/2024] [Indexed: 03/03/2024]
Abstract
Implant-associated osteomyelitis (IAOM) is characterized by bone infection and destruction; current therapy of antibiotic treatment and surgical debridement often results in drug resistance and bone defect. It is challenging to develop an antibiotic-free bactericidal and osteogenic-enhanced strategy for IAOM. Herein, an IAOM-tailored antibacterial and osteoinductive composite of copper (Cu)-strontium (Sr) peroxide nanoparticles (CSp NPs), encapsulated in polyethylene glycol diacrylate (PEGDA) (CSp@PEGDA), is designed. The dual functional CSp NPs display hydrogen peroxide (H2O2) self-supplying and Fenton catalytic Cu2+ ions' release, generating plenty of hydroxyl radical (•OH) in a pH-responsive manner for bacterial killing, while the released Sr2+ promotes the in vitro osteogenicity regarding cell proliferation, alkaline phosphatase activity, extracellular matrix calcification, and osteo-associated genes expression. The integration of Cu2+ and Sr2+ in CSp NPs together with the coated PEGDA hydrogel ensures the stable and sustainable ion release during short- and long-term periods. Benefitted from the injectablity and photo-crosslink ability, CSp@PEGDA is able to thoroughly fill the infectious site and gelate in situ for bacterial elimination and bone regeneration, which is verified through in vivo evaluation using a clinical-simulating IAOM mouse model. These favorable abilities of CSp@PEGDA precisely meet the multiple therapeutic needs and pave a promising way for implant-associated osteomyelitis treatment.
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Affiliation(s)
- Xin Guan
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Siyuan Wu
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Sixue Ouyang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Shuchen Ren
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Naiqian Cui
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Xiaohu Wu
- Department of Orthopedics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510515, China
| | - Dayong Xiang
- Division of Orthopaedic Trauma, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Wenting Chen
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Bin Yu
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Division of Orthopaedic Trauma, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Peng Zhao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Bowei Wang
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Division of Orthopaedic Trauma, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
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Liu Z, Li S, Xu Z, Li L, Liu Y, Gao X, Diao Y, Chen L, Sun J. Preparation and Characterization of Carboxymethyl Chitosan/Sodium Alginate Composite Hydrogel Scaffolds Carrying Chlorhexidine and Strontium-Doped Hydroxyapatite. ACS OMEGA 2024; 9:22230-22239. [PMID: 38799338 PMCID: PMC11112597 DOI: 10.1021/acsomega.4c01237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 04/04/2024] [Accepted: 04/30/2024] [Indexed: 05/29/2024]
Abstract
Herein, we introduce a novel composite hydrogel scaffold designed for addressing infectious jaw defects, a significant challenge in clinical settings caused by the inherent limited self-regenerative capacity of bone tissues. The scaffold was engineered from a blend of carboxymethyl chitosan (CMCS)/sodium alginate (SA) hydrogel (CSH), β-cyclodextrin/chlorhexidine clathrate (β-CD-CHX), and strontium-nanohydroxyapatite nanoparticles (Sr-nHA). The β-CD-CHX and Sr-nHA components were synthesized using a saturated aqueous solution and a coprecipitation method, respectively. Subsequently, these elements were encapsulated within the CSH matrix. Comprehensive characterization of the CMCS/SA/β-CD-CHX/Sr-nHA composite hydrogel scaffold via scanning electron microscopy, X-ray photoelectron spectroscopy, and Fourier-transform infrared spectroscopy validated the successful synthesis. The swelling and in vitro degradation behaviors proved that the composite hydrogel had good physical properties, while in vitro evaluations demonstrated favorable biocompatibility and osteoinductive properties. Additionally, antibacterial assessments revealed its effectiveness against common pathogens, Staphylococcus aureus and Escherichia coli. Overall, our results indicate that the CMCS/SA/β-CD-CHX/Sr-nHA composite hydrogel scaffolds exhibit significant potential for effectively treating infection-prone jaw defects.
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Affiliation(s)
- Zijian Liu
- Department
of Oral and Maxillofacial Surgery, The Affiliated
Hospital of Qingdao University, Qingdao 266003, China
- School
of Stomatology, Qingdao University, Qingdao 266003, China
| | - Shangbo Li
- Department
of Oral and Maxillofacial Surgery, The Affiliated
Hospital of Qingdao University, Qingdao 266003, China
- School
of Stomatology, Qingdao University, Qingdao 266003, China
| | - Zexian Xu
- Department
of Oral and Maxillofacial Surgery, The Affiliated
Hospital of Qingdao University, Qingdao 266003, China
- School
of Stomatology, Qingdao University, Qingdao 266003, China
| | - Li Li
- Department
of Oral and Maxillofacial Surgery, The Affiliated
Hospital of Qingdao University, Qingdao 266003, China
- School
of Stomatology, Qingdao University, Qingdao 266003, China
| | - Yanshan Liu
- Department
of Oral and Maxillofacial Surgery, The Affiliated
Hospital of Qingdao University, Qingdao 266003, China
- School
of Stomatology, Qingdao University, Qingdao 266003, China
- Dental
Digital Medicine and 3D Printing Engineering Laboratory of Qingdao, Qingdao 266003, China
| | - Xiaohan Gao
- Department
of Oral and Maxillofacial Surgery, The Affiliated
Hospital of Qingdao University, Qingdao 266003, China
- School
of Stomatology, Qingdao University, Qingdao 266003, China
| | - Yaru Diao
- Department
of Oral and Maxillofacial Surgery, The Affiliated
Hospital of Qingdao University, Qingdao 266003, China
- School
of Stomatology, Qingdao University, Qingdao 266003, China
| | - Liqiang Chen
- Department
of Oral and Maxillofacial Surgery, The Affiliated
Hospital of Qingdao University, Qingdao 266003, China
- School
of Stomatology, Qingdao University, Qingdao 266003, China
- Dental
Digital Medicine and 3D Printing Engineering Laboratory of Qingdao, Qingdao 266003, China
- The
Climbing Peak Discipline Project of Qingdao, Qingdao 266003, China
| | - Jian Sun
- Department
of Oral and Maxillofacial Surgery, The Affiliated
Hospital of Qingdao University, Qingdao 266003, China
- School
of Stomatology, Qingdao University, Qingdao 266003, China
- Dental
Digital Medicine and 3D Printing Engineering Laboratory of Qingdao, Qingdao 266003, China
- The
Climbing Peak Discipline Project of Qingdao, Qingdao 266003, China
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Ma S, Sun R, Wang Y, Wei Y, Xu H, Liu X, Liang Z, Zhao L, Hu Y, Lian X, Guo M, Huang D. Improving osseointegration and antimicrobial properties of titanium implants with black phosphorus nanosheets-hydroxyapatite composite coatings for vascularized bone regeneration. J Biomed Mater Res B Appl Biomater 2024; 112:e35403. [PMID: 38520706 DOI: 10.1002/jbm.b.35403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/21/2024] [Accepted: 03/04/2024] [Indexed: 03/25/2024]
Abstract
For decades, titanium implants have shown impressive advantages in bone repair. However, the preparation of implants with excellent antimicrobial properties as well as better osseointegration ability remains difficult for clinical application. In this study, black phosphorus nanosheets (BPNSs) were doped into hydroxyapatite (HA) coatings using electrophoretic deposition. The coatings' surface morphology, roughness, water contact angle, photothermal properties, and antibacterial properties were investigated. The BP/HA coating exhibited a surface roughness of 59.1 nm, providing an ideal substrate for cell attachment and growth. The water contact angle on the BP/HA coating was measured to be approximately 8.55°, indicating its hydrophilic nature. The BPNSs demonstrated efficient photothermal conversion, with a temperature increase of 42.2°C under laser irradiation. The BP/HA composite coating exhibited a significant reduction in bacterial growth, with inhibition rates of 95.6% and 96.1% against Staphylococcus aureus and Escherichia coli. In addition, the cytocompatibility of the composite coating was evaluated by cell adhesion, CCK8 and AM/PI staining; the effect of the composite coating in promoting angiogenesis was assessed by scratch assay, transwell assay, and protein blotting; and the osteoinductivity of the composite coating was evaluated by alkaline phosphatase assay, alizarin red staining, and Western blot. The results showed that the BP/HA composite coating exhibited superior performance in promoting biological functions such as cell proliferation and adhesion, antibacterial activity, osteogenic differentiation, and angiogenesis, and had potential applications in vascularized bone regeneration.
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Affiliation(s)
- Shilong Ma
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
| | - Ruize Sun
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
| | - Yuhui Wang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
| | - Yan Wei
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, People's Republic of China
| | - Haofeng Xu
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
| | - Xuanyu Liu
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
| | - Ziwei Liang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, People's Republic of China
| | - Liqin Zhao
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, People's Republic of China
| | - Yinchun Hu
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, People's Republic of China
| | - Xiaojie Lian
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, People's Republic of China
| | - Meiqing Guo
- Department of Fundamental Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
| | - Di Huang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, People's Republic of China
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Eijkel BIM, Apachitei I, Fratila-Apachitei LE, Zadpoor AA. In vitro co-culture models for the assessment of orthopedic antibacterial biomaterials. Front Bioeng Biotechnol 2024; 12:1332771. [PMID: 38375457 PMCID: PMC10875071 DOI: 10.3389/fbioe.2024.1332771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 01/15/2024] [Indexed: 02/21/2024] Open
Abstract
The antibacterial biofunctionality of bone implants is essential for the prevention and treatment of implant-associated infections (IAI). In vitro co-culture models are utilized to assess this and study bacteria-host cell interactions at the implant interface, aiding our understanding of biomaterial and the immune response against IAI without impeding the peri-implant bone tissue regeneration. This paper reviews existing co-culture models together with their characteristics, results, and clinical relevance. A total of 36 studies were found involving in vitro co-culture models between bacteria and osteogenic or immune cells at the interface with orthopedic antibacterial biomaterials. Most studies (∼67%) involved co-culture models of osteogenic cells and bacteria (osteo-bac), while 33% were co-culture models of immune cells and bacterial cells (im-bac). All models involve direct co-culture of two different cell types. The cell seeding sequence (simultaneous, bacteria-first, and cell-first) was used to mimic clinically relevant conditions and showed the greatest effect on the outcome for both types of co-culture models. The im-bac models are considered more relevant for early peri-implant infections, whereas the osteo-bac models suit late infections. The limitations of the current models and future directions to develop more relevant co-culture models to address specific research questions are also discussed.
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Affiliation(s)
- Benedictus I. M. Eijkel
- Department of Biomechanical Engineering, Faculty of Mechanical Engineering, Delft University of Technology (TU Delft), Delft, Netherlands
| | | | - Lidy E. Fratila-Apachitei
- Department of Biomechanical Engineering, Faculty of Mechanical Engineering, Delft University of Technology (TU Delft), Delft, Netherlands
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