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Xiao L, Yang Y, Yu J, Li Y, Chen S, Gu Y, Tang C, Yang H, Wang Z, Geng D. Urolithin B inhibits the differentiation of M1 macrophages and relieves the inflammation around the implants under osteoporosis via down-regulating the phosphorylation of VEGFR2. Int Immunopharmacol 2024; 140:112854. [PMID: 39116494 DOI: 10.1016/j.intimp.2024.112854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 07/24/2024] [Accepted: 07/30/2024] [Indexed: 08/10/2024]
Abstract
The inflammation causes the destroyed osseointegration at the implant-bone interface, significantly increasing the probability of implant loosening in osteoporotic patients. Currently, inhibiting the differentiation of M1 macrophages and the inflammatory response could be a solution to stabilize the microenvironment of implants. Interestingly, some natural products have anti-inflammatory and anti-polarization effects, which could be a promising candidate for stabilizing the implants' microenvironment in osteoporotic patients. This research aims to explore the inhibitory effect of Urolithin B(UB) on macrophage M1 polarization, which ameliorates inflammation, thus alleviating implant instability. We established an osteoporosis mouse model of implant loosening. The mouse tissues were taken out for morphological analysis, staining analysis, and bone metabolic index analysis. In in vitro experiments, RAW264.7 cells were polarized to M1 macrophages using lipopolysaccharide (LPS) and analyzed by immunofluorescence (IF) staining, Western blot (WB), and flow cytometry. The CSP100 plus chip experiments were used to explore the potential mechanisms behind the inhibiting effects of UB. Through observation of these experiments, UB can improve the osseointegration between the implants and femurs in osteoporotic mice and enhance the stability of implants. The UB can inhibit the differentiation of M1 macrophages and local inflammation via inhibiting the phosphorylation of VEGFR2, which can be further proved by the weakened inhibited effects of UB in macrophages with lentivirus-induced overexpression of VEGFR2. Overall, UB can specifically inhibit the activation of VEGFR2, alleviate local inflammation, and improve the stability of implants in osteoporotic mice.
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Affiliation(s)
- Long Xiao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu, China; Orthopaedic Institute, Medical College, Soochow University, Suzhou 215006, Jiangsu, China; Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, Jiangsu, China
| | - Yunshang Yang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, Jiangsu, China
| | - Jingxian Yu
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, Jiangsu, China
| | - Yajun Li
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, Jiangsu, China
| | - Shuangshuang Chen
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, Jiangsu, China
| | - Yong Gu
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, Jiangsu, China
| | - Cheng Tang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, Jiangsu, China
| | - Huilin Yang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu, China; Orthopaedic Institute, Medical College, Soochow University, Suzhou 215006, Jiangsu, China.
| | - Zhirong Wang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, Jiangsu, China.
| | - Dechun Geng
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu, China; Orthopaedic Institute, Medical College, Soochow University, Suzhou 215006, Jiangsu, China.
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He T, Wang Y, Wang R, Yang H, Hu X, Pu Y, Yang B, Zhang J, Li J, Huang C, Jin R, Nie Y, Zhang X. Fibrous topology promoted pBMP2-activated matrix on titanium implants boost osseointegration. Regen Biomater 2023; 11:rbad111. [PMID: 38173764 PMCID: PMC10761207 DOI: 10.1093/rb/rbad111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/25/2023] [Accepted: 12/04/2023] [Indexed: 01/05/2024] Open
Abstract
Titanium (Ti) implants have been extensively used after surgical operations. Its surface bioactivity is of importance to facilitate integration with surrounding bone tissue, and ultimately ensure stability and long-term functionality of the implant. The plasmid DNA-activated matrix (DAM) coating on the surface could benefit osseointegration but is still trapped by poor transfection for further application, especially on the bone marrow mesenchymal stem cells (BMSCs) in vivo practical conditions. Herein, we constructed a DAM on the surface of fibrous-grained titanium (FG Ti) composed of phase-transition lysozyme (P) as adhesive, cationic arginine-rich lipid (RLS) as the transfection agent and plasmid DNA (pDNA) for bone morphology protein 2 (BMP2) expression. The cationic lipid RLS improved up to 30-fold higher transfection than that of commercial reagents (Lipofectamine 2000 and polyethyleneimine) on MSC. And importantly, Ti surface topology not only promotes the DAM to achieve high transfection efficiency (∼75.7% positive cells) on MSC due to the favorable combination but also reserves its contact induction effect for osteoblasts. Upon further exploration, the fibrous topology on FG Ti could boost pDNA uptake for gene transfection, and cell migration in MSC through cytoskeleton remodeling and induce contact guidance for enhanced osteointegration. At the same time, the cationic RLS together with adhesive P were both antibacterial, showing up to 90% inhibition rate against Escherichia coli and Staphylococcus aureus with reduced adherent microorganisms and disrupted bacteria. Finally, the FG Ti-P/pBMP2 implant achieved accelerated bone healing capacities through highly efficient gene delivery, aligned surface topological structure and increased antimicrobial properties in a rat femoral condylar defect model.
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Affiliation(s)
- Ting He
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Yichun Wang
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Ruohan Wang
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Huan Yang
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Xueyi Hu
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Yiyao Pu
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Binbin Yang
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
- Department of the Affiliated Stomatological Hospital of Southwest Medical University, Southwest Medical University, Luzhou 646000, China
| | - Jingyuan Zhang
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Juan Li
- State Key Laboratory of Oral Diseases, West China School of Stomatology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Chongxiang Huang
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
- School of Aeronautics and Astronautics, Sichuan University, Chengdu 610064, China
| | - Rongrong Jin
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Yu Nie
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Xingdong Zhang
- National Engineering Research Centre for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
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Sun XD, Liu TT, Wang QQ, Zhang J, Cao MS. Surface Modification and Functionalities for Titanium Dental Implants. ACS Biomater Sci Eng 2023; 9:4442-4461. [PMID: 37523241 DOI: 10.1021/acsbiomaterials.3c00183] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Dental implants have become the mainstream strategy for oral restoration, and implant materials are the most important research hot spot in this field. So far, Ti implants dominate all kinds of implants. The surface properties of the Ti implant play decisive roles in osseointegration and antibacterial performance. Surface modifications can significantly change the surface micro/nanotopography and composition of Ti implants, which will effectively improve their hydrophilicity, mechanical properties, osseointegration performance, antibacterial performance, etc. These optimizations will thus improve implant success and service life. In this paper, the latest surface modification techniques of Ti dental implants are systematically and comprehensively reviewed. The various biomedical functionalities of surface modifications are discussed in-depth. Finally, a profound comment on the challenges and opportunities of this frontier is proposed, and the most promising directions for the future were explored.
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Affiliation(s)
- Xiao-Di Sun
- Tianjin Stomatological Hospital, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
| | - Ting-Ting Liu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Qiang-Qiang Wang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jian Zhang
- Tianjin Stomatological Hospital, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
| | - Mao-Sheng Cao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
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