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Xia S, Liu D, Jiang K, Cao M, Lou Z, Cheng R, Yi J, Yin A, Jiang Y, Cheng K, Weng W, Shi B, Tang B. Photothermal driven BMSCs osteogenesis and M2 macrophage polarization on polydopamine-coated Ti 3C 2 nanosheets/poly(vinylidene fluoride trifluoroethylene) nanocomposite coatings. Mater Today Bio 2024; 27:101156. [PMID: 39081463 PMCID: PMC11287002 DOI: 10.1016/j.mtbio.2024.101156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 07/11/2024] [Accepted: 07/12/2024] [Indexed: 08/02/2024] Open
Abstract
Mild thermal stimulation plays an active role in bone tissue repair and regeneration. In this work, a bioactive polydopamine/Ti3C2/poly(vinylidene fluoride trifluoroethylene) (PDA/Ti3C2/P(VDF-TrFE)) nanocomposite coating with excellent near-infrared light (NIR)-triggered photothermal effect was designed to improve the osteogenic ability of implants. By incorporating dopamine (DA)-modified Ti3C2 nanosheets into the P(VDF-TrFE) matrix and combining them with alkali initiated in situ polymerization, the resulting PDA/Ti3C2/P(VDF-TrFE) nanocomposite coating gained high adhesion strength on Ti substrate, excellent tribological and corrosion resistance properties, which was quite important for clinical application of implant coatings. Cell biology experiments showed that NIR-triggered mild thermal stimulation on the coating surface promoted cell spreading and growth of BMSCs, and also greatly upregulated the osteogenic markers, including Runt-Related Transcription Factor 2 (RUNX2), alkaline phosphatase (ALP), osteopontin (OPN), osteocalcin (OCN). Simultaneously, the synthesis of heat shock protein 47 (HSP47) was significantly promoted by the mild thermal stimulation, which strengthened the specific interaction between HSP47 and collagen Ⅰ (COL-Ⅰ), thereby activating the integrin-mediated MEK/ERK osteogenic differentiation signaling pathway. In addition, the results also showed that the mild thermal stimulation induced the polarization of macrophages towards M2 phenotype, which can attenuate the inflammatory response of injured bone tissue. Antibacterial results indicated that the coating exhibited an outstanding antibacterial ability against S. aureus and E. coli. Conceivably, the versatile implant bioactive coatings developed in this work will show great application potential for implant osseointegration.
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Affiliation(s)
- Sanqiang Xia
- School of Materials and Textile Engineering, Jiaxing University, Jiaxing, 314001, China
- The Affiliated Hospital of Jiaxing University, Jiaxing, 314001, China
| | - Dun Liu
- Division of Spine Surgery, Department of Orthopedic Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China
| | - Kanling Jiang
- The Affiliated Hospital of Jiaxing University, Jiaxing, 314001, China
| | - Miao Cao
- School of Materials and Textile Engineering, Jiaxing University, Jiaxing, 314001, China
| | - Zhenqi Lou
- The Affiliated Hospital of Jiaxing University, Jiaxing, 314001, China
| | - Ruobing Cheng
- School of Materials and Textile Engineering, Jiaxing University, Jiaxing, 314001, China
| | - Jie Yi
- School of Materials and Textile Engineering, Jiaxing University, Jiaxing, 314001, China
| | - Anlin Yin
- School of Materials and Textile Engineering, Jiaxing University, Jiaxing, 314001, China
| | - Yi Jiang
- The Affiliated Hospital of Jiaxing University, Jiaxing, 314001, China
| | - Kui Cheng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, 310027, China
| | - Wenjian Weng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, 310027, China
| | - Benlong Shi
- Division of Spine Surgery, Department of Orthopedic Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China
| | - Bolin Tang
- School of Materials and Textile Engineering, Jiaxing University, Jiaxing, 314001, China
- Nanotechnology Research Institute, G60 STI Valley Industry & Innovation Institute, Jiaxing University, Jiaxing, 314001, China
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Gao Y, Wang J, Dai W, Li S, Liu Q, Zhao X, Fu W, Xiao Y, Guo L, Fan Y, Zhang X. Collagen-based hydrogels induce hyaline cartilage regeneration by immunomodulation and homeostasis maintenance. Acta Biomater 2024:S1742-7061(24)00393-3. [PMID: 39067644 DOI: 10.1016/j.actbio.2024.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 07/09/2024] [Accepted: 07/11/2024] [Indexed: 07/30/2024]
Abstract
Type I collagen (Col I) and hyaluronic acid (HA), derived from the extracellular matrix (ECM), have found widespread application in cartilage tissue engineering. Nevertheless, the potential of cell-free collagen-based scaffolds to induce in situ hyaline cartilage regeneration and the related mechanisms remain undisclosed. Here, we chose Col I and HA to construct Col I hydrogel and Col I-HA composite hydrogel with similar mechanical properties, denoted as Col and ColHA, respectively. Their potential to induce cartilage regeneration was investigated. The results revealed that collagen-based hydrogels could regenerate hyaline cartilage without any additional cells or growth factors. Notably, ColHA hydrogel stood out in this regard. It elicited a moderate activation, recruitment, and reprogramming of macrophages, thus efficiently mitigating local inflammation. Additionally, ColHA hydrogel enhanced stem cell recruitment, facilitated their chondrogenic differentiation, and inhibited chondrocyte fibrosis, hypertrophy, and catabolism, thereby preserving cartilage homeostasis. This study augments our comprehension of cartilage tissue induction theory by enriching immune-related mechanisms, offering innovative prospects for the design of cartilage defect repair scaffolds. STATEMENT OF SIGNIFICANCE: The limited self-regeneration ability and post-injury inflammation pose significant challenges to articular cartilage repair. Type I collagen (Col I) and hyaluronic acid (HA) are extensively used in cartilage tissue engineering. However, their specific roles in cartilage regeneration remain poorly understood. This study aimed to elucidate the functions of Col I and Col I-HA composite hydrogels (ColHA) in orchestrating inflammatory responses and promoting cartilage regeneration. ColHA effectively activated and recruited macrophages, reprogramming them from an M1 to an M2 phenotype, thus alleviating local inflammation. Additionally, ColHA facilitated stem cell homing, induced chondrogenesis, and concurrently inhibited fibrosis, hypertrophy, and catabolism, collectively contributing to the maintenance of cartilage homeostasis. These findings underscore the clinical potential of ColHA for repairing cartilage defects.
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Affiliation(s)
- Yongli Gao
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China; School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Jing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China; School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Wenling Dai
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China; School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Shikui Li
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China; School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Qingli Liu
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China; School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Xingchen Zhao
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China; School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Weili Fu
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan 610064, China
| | - Yumei Xiao
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China; School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Likun Guo
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China; School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China.
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China; School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China; School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
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Jiang W, Zhan Y, Zhang Y, Sun D, Zhang G, Wang Z, Chen L, Sun J. Synergistic large segmental bone repair by 3D printed bionic scaffolds and engineered ADSC nanovesicles: Towards an optimized regenerative microenvironment. Biomaterials 2024; 308:122566. [PMID: 38603824 DOI: 10.1016/j.biomaterials.2024.122566] [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: 10/31/2023] [Revised: 03/08/2024] [Accepted: 04/03/2024] [Indexed: 04/13/2024]
Abstract
Achieving sufficient bone regeneration in large segmental defects is challenging, with the structure of bone repair scaffolds and their loaded bioactive substances crucial for modulating the local osteogenic microenvironment. This study utilized digital laser processing (DLP)-based 3D printing technology to successfully fabricate high-precision methacryloylated polycaprolactone (PCLMA) bionic bone scaffold structures. Adipose-derived stem cell-engineered nanovesicles (ADSC-ENs) were uniformly and stably modified onto the bionic scaffold surface using a perfusion device, constructing a conducive microenvironment for tissue regeneration and long bone defect repair through the scaffold's structural design and the vesicles' biological functions. Scanning electron microscopy (SEM) examination of the scaffold surface confirmed the efficient loading of ADSC-ENs. The material group loaded with vesicles (PCLMA-BAS-ENs) demonstrated good cell compatibility and osteogenic potential when analyzed for the adhesion and osteogenesis of primary rabbit bone marrow mesenchymal stem cells (BMSCs) on the material surface. Tested in a 15 mm critical rabbit radial defect model, the PCLMA-BAS-ENs scaffold facilitated near-complete bone defect repair after 12 weeks. Immunofluorescence and proteomic results indicated that the PCLMA-BAS-ENs scaffold significantly improved the osteogenic microenvironment at the defect site in vivo, promoted angiogenesis, and enhanced the polarization of macrophages towards M2 phenotype, and facilitated the recruitment of BMSCs. Thus, the PCLMA-BAS-ENs scaffold was proven to significantly promote the repair of large segmental bone defects. Overall, this strategy of combining engineered vesicles with highly biomimetic scaffolds to promote large-segment bone tissue regeneration holds great potential in orthopedic and other regenerative medicine applications.
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Affiliation(s)
- Wenbin Jiang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Yichen Zhan
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Yifan Zhang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Di Sun
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Guo Zhang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Zhenxing Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Lifeng Chen
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China.
| | - Jiaming Sun
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China.
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Han J, Rindone AN, Elisseeff JH. Immunoengineering Biomaterials for Musculoskeletal Tissue Repair across Lifespan. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311646. [PMID: 38416061 PMCID: PMC11239302 DOI: 10.1002/adma.202311646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/23/2024] [Indexed: 02/29/2024]
Abstract
Musculoskeletal diseases and injuries are among the leading causes of pain and morbidity worldwide. Broad efforts have focused on developing pro-regenerative biomaterials to treat musculoskeletal conditions; however, these approaches have yet to make a significant clinical impact. Recent studies have demonstrated that the immune system is central in orchestrating tissue repair and that targeting pro-regenerative immune responses can improve biomaterial therapeutic outcomes. However, aging is a critical factor negatively affecting musculoskeletal tissue repair and immune function. Hence, understanding how age affects the response to biomaterials is essential for improving musculoskeletal biomaterial therapies. This review focuses on the intersection of the immune system and aging in response to biomaterials for musculoskeletal tissue repair. The article introduces the general impacts of aging on tissue physiology, the immune system, and the response to biomaterials. Then, it explains how the adaptive immune system guides the response to injury and biomaterial implants in cartilage, muscle, and bone and discusses how aging impacts these processes in each tissue type. The review concludes by highlighting future directions for the development and translation of personalized immunomodulatory biomaterials for musculoskeletal tissue repair.
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Affiliation(s)
- Jin Han
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, Johns Hopkins University; Baltimore, MD 21231, USA
| | - Alexandra N. Rindone
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, Johns Hopkins University; Baltimore, MD 21231, USA
| | - Jennifer H. Elisseeff
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, Johns Hopkins University; Baltimore, MD 21231, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine; Baltimore, MD 21231, USA
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University; Baltimore, MD 21231, USA
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Ren Y, Jung O, Batinic M, Burckhardt K, Görke O, Alkildani S, Köwitsch A, Najman S, Stojanovic S, Liu L, Prade I, Barbeck M. Biphasic bone substitutes coated with PLGA incorporating therapeutic ions Sr 2+ and Mg 2+: cytotoxicity cascade and in vivo response of immune and bone regeneration. Front Bioeng Biotechnol 2024; 12:1408702. [PMID: 38978719 PMCID: PMC11228333 DOI: 10.3389/fbioe.2024.1408702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 05/27/2024] [Indexed: 07/10/2024] Open
Abstract
The incorporation of bioactive ions into biomaterials has gained significant attention as a strategy to enhance bone tissue regeneration on the molecular level. However, little knowledge exists about the effects of the addition of these ions on the immune response and especially on the most important cellular regulators, the macrophages. Thus, this study aimed to investigate the in vitro cytocompatibility and in vivo regulation of bone remodeling and material-related immune responses of a biphasic bone substitute (BBS) coated with metal ions (Sr2+/Mg2+) and PLGA, using the pure BBS as control group. Initially, two cytocompatible modified material variants were identified according to the in vitro results obtained following the DIN EN ISO 10993-5 protocol. The surface structure and ion release of both materials were characterized using SEM-EDX and ICP-OES. The materials were then implanted into Wistar rats for 10, 30, and 90 days using a cranial defect model. Histopathological and histomorphometrical analyses were applied to evaluate material degradation, bone regeneration, osteoconductivity, and immune response. The findings revealed that in all study groups comparable new bone formation were found. However, during the early implantation period, the BBS_Sr2+ group exhibited significantly faster regeneration compared to the other two groups. Additionally, all materials induced comparable tissue and immune responses involving high numbers of both pro-inflammatory macrophages and multinucleated giant cells (MNGCs). In conclusion, this study delved into the repercussions of therapeutic ion doping on bone regeneration patterns and inflammatory responses, offering insights for the advancement of a new generation of biphasic calcium phosphate materials with potential clinical applicability.
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Affiliation(s)
- Yanru Ren
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, Rostock, Germany
| | - Ole Jung
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, Rostock, Germany
| | - Milijana Batinic
- Institute of Materials Science and Technology, Chair of Advanced Ceramic Materials, Technical University Berlin, Berlin, Germany
| | - Kim Burckhardt
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, Rostock, Germany
| | - Oliver Görke
- Institute of Materials Science and Technology, Chair of Advanced Ceramic Materials, Technical University Berlin, Berlin, Germany
| | | | | | - Stevo Najman
- Department of Biology and Human Genetics, Faculty of Medicine, University of Niš, Niš, Serbia
- Scientific Research Center for Biomedicine, Department for Cell and Tissue Engineering, Faculty of Medicine, University of Niš, Niš, Serbia
| | - Sanja Stojanovic
- Department of Biology and Human Genetics, Faculty of Medicine, University of Niš, Niš, Serbia
- Scientific Research Center for Biomedicine, Department for Cell and Tissue Engineering, Faculty of Medicine, University of Niš, Niš, Serbia
| | - Luo Liu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Ina Prade
- FILK Freiberg Institute, Freiberg, Germany
| | - Mike Barbeck
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, Rostock, Germany
- BerlinAnalytix GmbH, Berlin, Germany
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Lechner J, von Baehr V, Notter F, Schick F. Osteoimmune Interaction and TH-1/TH-2 Ratio in Jawbone Marrow Defects: An Underestimated Association - Original Research. Biologics 2024; 18:147-161. [PMID: 38859969 PMCID: PMC11164205 DOI: 10.2147/btt.s448587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 05/29/2024] [Indexed: 06/12/2024]
Abstract
Introduction Osteoimmunology recognizes the relationship between bone cells and immune cells. Chronic osteoimmune dysregulation is present in bone marrow defects of the jaw (BMDJ) as fatty-degenerative osteonecrosis (FDOJ). In comparison to samples from healthy jaw bone, the cytokine analysis of samples of BMDJ/FDOJ from 128 patients showed downregulated TNF-α and IL-6 expression and the singular overexpression of the chemokine RANTES/CCL5. Aim and Objectives This paper raises the question of whether the osteoimmune defects due to incomplete wound healing in BMDJ/FDOJ in 128 patients are related to dysregulation of the Th1/Th2 ratio and regulatory T cell (T-reg) expression in a control group of 197 BMDJ/FDOJ patients, each presenting with BMDJ/FJOD and one of seven different immune disorders. Material and Methods In the control group, serum concentrations of the cytokines IFN-y and IL-4 were determined after stimulated cytokine release and displayed as Th1/Th2 ratios. Results Data show a shift in Th2 in more than 80% (n = 167) of the control cohort of 197 chronically ill patients with concomitant BMDJ/FDOJ. In these 167 subjects, the Th1/Th2 ratio was <6.1 demonstrating impaired immune regulation. Forty-seven subjects or 30% showed not only a shift in Th2 but also excessive T-reg overactivation with levels of >1.900 pg/mL, indicating strongly downregulated immune activity. Discussion BMDJ/FDOJ is characterized by a lack of Th1 cytokines and an excessive expression of RANTES/CCL5 and IL-1ra and, thus, the inversion of an acute inflammatory cytokine pattern. In contrast, abdominal fat contains a very high proportion of regulatory Th1 cells and produces an inflammatory immune response through the high overexpression of TNF-α and IL-6. The lack of Th1 activation in BMDJ/FDOJ areas inhibits normal wound healing and supports the persistence of BMDJ/FDOJ. Conclusion The Th1/Th2 ratio requires greater consideration, especially with respect to wound healing following dental surgical interventions, such as jaw surgery, implantation and augmentation, to avoid the emergence of the osteoimmune situation that is characteristic of BMDJ/FDOJ.
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Affiliation(s)
| | - Volker von Baehr
- Department of Immunology and Allergology, Institute for Medical Diagnostics, Berlin, Germany
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Ma T, Wang Y, Ma J, Cui H, Feng X, Ma X. Research progress in the pathogenesis of hormone-induced femoral head necrosis based on microvessels: a systematic review. J Orthop Surg Res 2024; 19:265. [PMID: 38671500 PMCID: PMC11046814 DOI: 10.1186/s13018-024-04748-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
Hormonal necrosis of the femoral head is caused by long-term use of glucocorticoids and other causes of abnormal bone metabolism, lipid metabolism imbalance and blood microcirculation disorders in the femoral head, resulting in bone trabecular fracture, bone tissue necrosis collapse, and hip dysfunction. It is the most common type of non-traumatic necrosis of the femoral head, and its pathogenesis is complex, while impaired blood circulation is considered to be the key to its occurrence. There are a large number of microvessels in the femoral head, among which H-type vessels play a decisive role in the "angiogenesis and osteogenesis coupling", and thus have an important impact on the occurrence and development of femoral head necrosis. Glucocorticoids can cause blood flow injury of the femoral head mainly through coagulation dysfunction, endothelial dysfunction and impaired angiogenesis. Glucocorticoids may inhibit the formation of H-type vessels by reducing the expression of HIF-1α, PDGF-BB, VGEF and other factors, thus causing damage to the "angiogenesis-osteogenesis coupling" and reducing the ability of necrosis reconstruction and repair of the femoral head. Leads to the occurrence of hormonal femoral head necrosis. Therefore, this paper reviewed the progress in the study of the mechanism of hormone-induced femoral head necrosis based on microvascular blood flow at home and abroad, hoping to provide new ideas for the study of the mechanism of femoral head necrosis and provide references for clinical treatment of femoral head necrosis.
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Affiliation(s)
- Tiancheng Ma
- Tianjin Hospital of Tianjin University, Tianjin, 300211, China
- Tianjin Orthopedic Institute, Tianjin, 300050, China
- Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin, 300050, China
| | - Yan Wang
- Tianjin Hospital of Tianjin University, Tianjin, 300211, China
- Tianjin Orthopedic Institute, Tianjin, 300050, China
- Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin, 300050, China
| | - Jianxiong Ma
- Tianjin Hospital of Tianjin University, Tianjin, 300211, China.
- Tianjin Orthopedic Institute, Tianjin, 300050, China.
- Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin, 300050, China.
| | - Hongwei Cui
- Tianjin Hospital of Tianjin University, Tianjin, 300211, China
- Tianjin Orthopedic Institute, Tianjin, 300050, China
- Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin, 300050, China
| | - Xiaotian Feng
- Tianjin Hospital of Tianjin University, Tianjin, 300211, China
- Tianjin Orthopedic Institute, Tianjin, 300050, China
- Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin, 300050, China
| | - Xinlong Ma
- Tianjin Hospital of Tianjin University, Tianjin, 300211, China
- Tianjin Orthopedic Institute, Tianjin, 300050, China
- Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin, 300050, China
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Lei H, Guo W, Pan Y, Lu X, Zhang Q. LOX-1 regulation of H-type vascular endothelial cell regeneration in hyperglycemia. Acta Diabetol 2024; 61:515-524. [PMID: 38244081 DOI: 10.1007/s00592-023-02224-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/10/2023] [Indexed: 01/22/2024]
Abstract
AIMS Diabetic osteoporosis (DOP) is the most common secondary form of osteoporosis. Diabetes mellitus affects bone metabolism; however, the underlying pathophysiological mechanisms remain unclear. Lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) expression is upregulated in conditions characterized by vascular injury, such as atherosclerosis, hypertension, and diabetes. Additionally, Notch, HIF-1α, and VEGF are involved in angiogenesis and bone formation. Therefore, we aimed to investigate the expression of Notch, HIF-1α, and VEGF in the LOX-1 silencing state. METHODS Rat bone H-type vascular endothelial cells (THVECs) were isolated and cultured in vitro. Cell identification was performed using immunofluorescent co-expression of CD31 and Emcn. Lentiviral silencing vector (LV-LOX-1) targeting LOX-1 was constructed using genetic recombination technology and transfected into the cells. The experimental groups included the following: NC group, HG group, LV-LOX-1 group, LV-CON group, HG + LV-LOX-1 group, HG + LV-CON group, HG + LV-LOX-1 + FLI-06 group, HG + LV-CON + FLI-06 group, HG + LV-LOX-1 + LW6 group, and HG + LV-CON + LW6 group. The levels of LOX-1, Notch, Hif-1α, and VEGF were detected using PCR and WB techniques to investigate whether the expression of LOX-1 under high glucose conditions has a regulatory effect on downstream molecules at the gene and protein levels, as well as the specific molecular mechanisms involved. RESULTS High glucose (HG) conditions led to a significant increase in LOX-1 expression, leading to inhibition of angiogenesis, whereas silencing LOX-1 can reverse this phenomenon. Further analysis reveals that changes in LOX-1 will promote changes in Notch/HIF-1α and VEGF. Moreover, Notch mediates the activation of HIF-1α and VEGF. CONCLUSIONS The activation of LOX-1 and the inhibition of Notch/HIF-1α/VEGF in THVECs are the main causes of DOP. These findings contribute to our understanding of the pathogenesis of DOP and offer a novel approach for preventing and treating osteoporosis.
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Affiliation(s)
- Haoyue Lei
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Wenhui Guo
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Youzhuo Pan
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Xun Lu
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750000, China
| | - Qi Zhang
- Department of Gerontology, Gansu Provincial Hospital, Lanzhou, 730000, China.
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Wen X, Wang J, Pei X, Zhang X. Zinc-based biomaterials for bone repair and regeneration: mechanism and applications. J Mater Chem B 2023; 11:11405-11425. [PMID: 38010166 DOI: 10.1039/d3tb01874a] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Zinc (Zn) is one of the most important trace elements in the human body and plays a key role in various physiological processes, especially in bone metabolism. Zn-containing materials have been reported to enhance bone repair through promoting cell proliferation, osteogenic activity, angiogenesis, and inhibiting osteoclast differentiation. Therefore, Zn-based biomaterials are potential substitutes for traditional bone grafts. In this review, the specific mechanisms of bone formation promotion by Zn-based biomaterials were discussed, and recent developments in their application in bone tissue engineering were summarized. Moreover, the challenges and perspectives of Zn-based biomaterials were concluded, revealing their attractive potential and development directions in the future.
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Affiliation(s)
- Xinyu Wen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Jian Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Xibo Pei
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Xin Zhang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
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10
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Xiong W, Yuan L, Huang J, Pan B, Guo L, Qian G, Shuai C, Zeng Z. Direct osteogenesis and immunomodulation dual function via sustained release of naringin from the polymer scaffold. J Mater Chem B 2023; 11:10896-10907. [PMID: 37929928 DOI: 10.1039/d3tb01555f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Many traditional Chinese medicine monomers, such as naringin (NG), can regulate the local immune microenvironment to benefit osteogenesis. However, the rapid release of NG from scaffolds severely influences the osteogenesis-promoting effect. Herein, NG was loaded into mesoporous bioglass (MBG) to achieve sustained release through physical adsorption and the barrier role of mesoporous channels, then MBG loaded with NG was added to poly(L-lactic acid) (PLLA) to fabricate composite scaffolds by selective laser sintering (SLS) technology. The results showed that the NG-MBG/PLLA scaffolds could continuously and slowly release NG for 14 days compared with NG/PLLA scaffolds, and the cumulative release amount for the NG-MBG/PLLA scaffolds was 44.26%. In addition, the NG-MBG/PLLA scaffolds can promote the proliferation and osteogenesis differentiation of mouse bone marrow mesenchymal stem cells (mBMSCs). Meanwhile, the composite scaffolds decreased the reactive oxygen species (ROS) level of RAW264.7 under the stimulation of lipopolysaccharide (LPS) and significantly suppressed interleukin-6 (IL-6) and enhanced arginase-1 (Arg-1) protein expressions. Moreover, calcium nodule and alkaline phosphatase production of mBMSCs in a macrophage-conditioned medium for the NG-MBG/PLLA group also evidently increased compared with the PLLA and MBG/PLLA groups. These NG sustained-release composite scaffolds with osteo-immunomodulation function have great application prospects in the clinic.
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Affiliation(s)
- Wei Xiong
- Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Lingmei Yuan
- Department of ophthalmology, The Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang 330006, China
| | - Jinyang Huang
- Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Bin Pan
- Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Ling Guo
- Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Guowen Qian
- School of Energy and Mechanical Engineering, Jiangxi University of Science and Technology, Nanchang 330013, China.
| | - Cijun Shuai
- Institute of Additive Manufacturing, Jiangxi University of Science and Technology, Nanchang 330013, China.
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
- College of Mechanical Engineering, Xinjiang University, Urumqi 830017, China
| | - Zhikui Zeng
- Department of Orthopedics and Trauma, The Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang 330006, China
- National Engineering Research Center for Manufacturing Technology of Traditional Chinese Medicine Solid Preparations, Jiangxi University of Chinese Medicine, Nanchang 330004, China.
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11
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Hu B, Gao J, Lu Y, Wang Y. Applications of Degradable Hydrogels in Novel Approaches to Disease Treatment and New Modes of Drug Delivery. Pharmaceutics 2023; 15:2370. [PMID: 37896132 PMCID: PMC10610366 DOI: 10.3390/pharmaceutics15102370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/03/2023] [Accepted: 09/07/2023] [Indexed: 10/29/2023] Open
Abstract
Hydrogels are particularly suitable materials for loading drug delivery agents; their high water content provides a biocompatible environment for most biomolecules, and their cross-linked nature protects the loaded agents from damage. During delivery, the delivered substance usually needs to be released gradually over time, which can be achieved by degradable cross-linked chains. In recent years, biodegradable hydrogels have become a promising technology in new methods of disease treatment and drug delivery methods due to their many advantageous properties. This review briefly discusses the degradation mechanisms of different types of biodegradable hydrogel systems and introduces the specific applications of degradable hydrogels in several new methods of disease treatment and drug delivery methods.
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Affiliation(s)
- Bo Hu
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China; (B.H.); (J.G.)
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic, Ministry of Education of China, Beijing Laboratory of Biomedical Materials, Beijing 100069, China
| | - Jinyuan Gao
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China; (B.H.); (J.G.)
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic, Ministry of Education of China, Beijing Laboratory of Biomedical Materials, Beijing 100069, China
| | - Yu Lu
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China; (B.H.); (J.G.)
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic, Ministry of Education of China, Beijing Laboratory of Biomedical Materials, Beijing 100069, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Yuji Wang
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China; (B.H.); (J.G.)
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic, Ministry of Education of China, Beijing Laboratory of Biomedical Materials, Beijing 100069, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
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12
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Wang Y, Li H, Zhao C, Zi Q, He F, Wang W. VEGF-modified PLA/HA nanocomposite fibrous membrane for cranial defect repair in rats. J Biomater Appl 2023; 38:455-467. [PMID: 37610341 DOI: 10.1177/08853282231198157] [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] [Indexed: 08/24/2023]
Abstract
A major obstacle to bone tissue repair is the difficulty in establishing a rapid blood supply areas of bone defects. Vascular endothelial growth factor (VEGF)-infused tissue-engineered scaffolds offer a possible therapeutic option for these types of injuries. Their role is to accelerate angiogenesis and improve bone healing. In this study, we used electrostatic spinning and biofactor binding to construct polylactic acid (PLA)/hydroxyapatite (HA)-VEGF scaffold materials and clarify their pro-vascular role in bone defect areas for efficient bone defect repair. PLA/HA nanocomposite fibrous membranes were manufactured by selecting suitable electrostatic spinning parameters. Heparin and VEGF were bound sequentially, and then the VEGF binding and release curves of the fiber membranes were calculated. A rat cranial defect model was constructed, and PLA/HA fiber membranes bound with VEGF and unbound with VEGF were placed for treatment. Finally, we compared bone volume recovery and vascular recovery in different fibrous membrane sites. A VEGF concentration of 2.5 µg/mL achieved the maximum binding and uniform distribution of PLA/HA fibrous membranes. Extended-release experiments showed that VEGF release essentially peaked at 14 days. In vivo studies showed that PLA/HA fibrous membranes bound with VEGF significantly increased the number of vessels at the site of cranial defects, bone mineral density, bone mineral content, bone bulk density, trabecular separation, trabecular thickness, and the number of trabeculae at the site of defects in rats compared with PLA/HA fibrous membranes not bound with VEGF. VEGF-bound PLA/HA fibrous membranes demonstrate the slow release of VEGF. The VEGF binding process does not disrupt the morphology and structure of the fibrous membranes. The fibrous membranes could stimulate both osteogenesis and angiogenesis. Taken together, this research provides a new strategy for critical-sized bone defects repairing.
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Affiliation(s)
- Yanghao Wang
- First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Haohan Li
- Kunming Medical University, Kunming, Yunnan, China
| | - Cuicui Zhao
- Kunming Medical University, Kunming, Yunnan, China
| | - Qihan Zi
- Kunming Medical University, Kunming, Yunnan, China
| | - Fei He
- Department of orthopedic, Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan, China
| | - Weizhou Wang
- Department of Orthopedics, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
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13
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Fan Z, Liu H, Ding Z, Xiao L, Lu Q, Kaplan DL. Simulation of Cortical and Cancellous Bone to Accelerate Tissue Regeneration. ADVANCED FUNCTIONAL MATERIALS 2023; 33:2301839. [PMID: 37601745 PMCID: PMC10437128 DOI: 10.1002/adfm.202301839] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Indexed: 08/22/2023]
Abstract
Different tissues have complex anisotropic structures to support biological functions. Mimicking these complex structures in vitro remains a challenge in biomaterials designs in support of tissue regeneration. Here, inspired by different types of silk nanofibers, a composite materials strategy was pursued towards this challenge. A combination of fabrication methods was utilized to achieve separate control of amorphous and beta-sheet rich silk nanofibers in the same solution. Aqueous solutions containing these two structural types of silk nanofibers were then simultaneously treated with an electric field and with ethylene glycol diglycidyl ether (EGDE). Under these conditions, the beta-sheet rich silk nanofibers in the mixture responded to the electric field while the amorphous nanofibers were active in the crosslinking process with the EGDE. As a result, cryogels with anisotropic structures were prepared, including mimics for cortical- and cancellous-like bone biomaterials as a complex osteoinductive niche. In vitro studies revealed that mechanical cues of the cryogels induced osteodifferentiation of stem cells while the anisotropy inside the cryogels influenced immune reactions of macrophages. These bioactive cryogels also stimulated improved bone regeneration in vivo through modulation of inflammation, angiogenesis and osteogenesis responses, suggesting an effective strategy to develop bioactive matrices with complex anisotropic structures beneficial to tissue regeneration.
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Affiliation(s)
- Zhihai Fan
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou 215000, People’s Republic of China
| | - Hongxiang Liu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou 215000, People’s Republic of China
| | - Zhaozhao Ding
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, People’s Republic of China
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, People’s Republic of China
| | - Liying Xiao
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, People’s Republic of China
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, People’s Republic of China
| | - Qiang Lu
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, People’s Republic of China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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14
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Wang P, Gong Y, Zhou G, Ren W, Wang X. Biodegradable Implants for Internal Fixation of Fractures and Accelerated Bone Regeneration. ACS OMEGA 2023; 8:27920-27931. [PMID: 37576626 PMCID: PMC10413843 DOI: 10.1021/acsomega.3c02727] [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: 04/20/2023] [Accepted: 07/12/2023] [Indexed: 08/15/2023]
Abstract
Bone fractures have always been a burden to patients due to their common occurrence and severe complications. Traditionally, operative treatments have been widely used in the clinic for implanting, despite the fact that they can only achieve bone fixation with limited stability and pose no effect on promoting tissue growth. In addition, the nondegradable implants usually need a secondary surgery for implant removal, otherwise they may block the regeneration of bones resulting in bone nonunion. To overcome the low degradability of implants and avoid multiple surgeries, tissue engineers have investigated various biodegradable materials for bone regeneration, whereas the significance of stability of long-term bone fixation tends to be neglected during this process. Combining the traditional orthopedic implantation surgeries and emerging tissue engineering, we believe that both bone fixation and bone regeneration are indispensable factors for a successful bone repair. Herein, we define such a novel idea as bone regenerative fixation (BRF), which should be the main future development trend of biodegradable materials.
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Affiliation(s)
- Pei Wang
- Department
of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of
Tissue Engineering, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Yan Gong
- Department
of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of
Tissue Engineering, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Guangdong Zhou
- Department
of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of
Tissue Engineering, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
- Institute
of Regenerative Medicine and Orthopedics, Institutes of Health Central
Plain, Xinxiang Medical University, Henan 453003, China
| | - Wenjie Ren
- Institute
of Regenerative Medicine and Orthopedics, Institutes of Health Central
Plain, Xinxiang Medical University, Henan 453003, China
| | - Xiansong Wang
- Department
of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of
Tissue Engineering, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
- Institute
of Regenerative Medicine and Orthopedics, Institutes of Health Central
Plain, Xinxiang Medical University, Henan 453003, China
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15
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Wu P, Shen L, Liu HF, Zou XH, Zhao J, Huang Y, Zhu YF, Li ZY, Xu C, Luo LH, Luo ZQ, Wu MH, Cai L, Li XK, Wang ZG. The marriage of immunomodulatory, angiogenic, and osteogenic capabilities in a piezoelectric hydrogel tissue engineering scaffold for military medicine. Mil Med Res 2023; 10:35. [PMID: 37525300 PMCID: PMC10388535 DOI: 10.1186/s40779-023-00469-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/05/2023] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND Most bone-related injuries to grassroots troops are caused by training or accidental injuries. To establish preventive measures to reduce all kinds of trauma and improve the combat effectiveness of grassroots troops, it is imperative to develop new strategies and scaffolds to promote bone regeneration. METHODS In this study, a porous piezoelectric hydrogel bone scaffold was fabricated by incorporating polydopamine (PDA)-modified ceramic hydroxyapatite (PDA-hydroxyapatite, PHA) and PDA-modified barium titanate (PDA-BaTiO3, PBT) nanoparticles into a chitosan/gelatin (Cs/Gel) matrix. The physical and chemical properties of the Cs/Gel/PHA scaffold with 0-10 wt% PBT were analyzed. Cell and animal experiments were performed to characterize the immunomodulatory, angiogenic, and osteogenic capabilities of the piezoelectric hydrogel scaffold in vitro and in vivo. RESULTS The incorporation of BaTiO3 into the scaffold improved its mechanical properties and increased self-generated electricity. Due to their endogenous piezoelectric stimulation and bioactive constituents, the as-prepared Cs/Gel/PHA/PBT hydrogels exhibited cytocompatibility as well as immunomodulatory, angiogenic, and osteogenic capabilities; they not only effectively induced macrophage polarization to M2 phenotype but also promoted the migration, tube formation, and angiogenic differentiation of human umbilical vein endothelial cells (HUVECs) and facilitated the migration, osteo-differentiation, and extracellular matrix (ECM) mineralization of MC3T3-E1 cells. The in vivo evaluations showed that these piezoelectric hydrogels with versatile capabilities significantly facilitated new bone formation in a rat large-sized cranial injury model. The underlying molecular mechanism can be partly attributed to the immunomodulation of the Cs/Gel/PHA/PBT hydrogels as shown via transcriptome sequencing analysis, and the PI3K/Akt signaling axis plays an important role in regulating macrophage M2 polarization. CONCLUSION The piezoelectric Cs/Gel/PHA/PBT hydrogels developed here with favorable immunomodulation, angiogenesis, and osteogenesis functions may be used as a substitute in periosteum injuries, thereby offering the novel strategy of applying piezoelectric stimulation in bone tissue engineering for the enhancement of combat effectiveness in grassroots troops.
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Affiliation(s)
- Ping Wu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, Zhejiang, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Lin Shen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, Zhejiang, China
| | - Hui-Fan Liu
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xiang-Hui Zou
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Juan Zhao
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, Zhejiang, China
| | - Yu Huang
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, Zhejiang, China
| | - Yu-Fan Zhu
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Zhao-Yu Li
- Department of Overseas Education College, Jimei University, Xiamen, 361021, Fujian, China
| | - Chao Xu
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Li-Hua Luo
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Zhi-Qiang Luo
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Min-Hao Wu
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
| | - Lin Cai
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
| | - Xiao-Kun Li
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
| | - Zhou-Guang Wang
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, Zhejiang, China.
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
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16
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Niu Q, Chen H, Ou Q, Yang S, Peng Y, Xie Y, Yu L, Cheng Z, Cao Y, Wang Y. Klotho enhances bone regenerative function of hPDLSCs via modulating immunoregulatory function and cell autophagy. J Orthop Surg Res 2023; 18:400. [PMID: 37264407 DOI: 10.1186/s13018-023-03849-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 05/09/2023] [Indexed: 06/03/2023] Open
Abstract
BACKGROUND Human periodontal ligament stem cells (hPDLSCs) have a superior ability to promote the formation of new bones and achieve tissue regeneration. However, mesenchymal stem cells (MSCs) are placed in harsh environments after transplantation, and the hostile microenvironment reduces their stemness and hinders their therapeutic effects. Klotho is an antiaging protein that participates in the regulation of stress resistance. In our previous study, we demonstrated the protective ability of Klotho in hPDLSCs. METHODS A cranial bone defect model of rats was constructed, and the hPDLSCs with or without Klotho pretreatment were transplanted into the defects. Histochemical staining and micro-computed tomography were used to detect cell survival, osteogenesis, and immunoregulatory effects of hPDLSCs after transplantation. The in vitro capacity of hPDLSCs was measured by a macrophage polarization test and the inflammatory level of macrophages. Furthermore, we explored autophagy activity in hPDLSCs, which may be affected by Klotho to regulate cell homeostasis. RESULTS Pretreatment with the recombinant human Klotho protein improved cell survival after hPDLSC transplantation and enhanced their ability to promote bone regeneration. Furthermore, Klotho pretreatment can promote stem cell immunomodulatory effects in macrophages and modulate cell autophagy activity, in vivo and in vitro. CONCLUSION These findings suggest that the Klotho protein protects hPDLSCs from stress after transplantation to maintain stem cell function via enhancing the immunomodulatory ability of hPDLSCs and inhibiting cell autophagy.
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Affiliation(s)
- Qingru Niu
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Huan Chen
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Qianmin Ou
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Shuqing Yang
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Yingying Peng
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Yunyi Xie
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Le Yu
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Zhilan Cheng
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Yang Cao
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China.
| | - Yan Wang
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China.
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17
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He Y, Liang L, Luo C, Zhang ZY, Huang J. Strategies for in situ tissue engineering of vascularized bone regeneration (Review). Biomed Rep 2023; 18:42. [PMID: 37325184 PMCID: PMC10265129 DOI: 10.3892/br.2023.1625] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 04/03/2023] [Indexed: 06/17/2023] Open
Abstract
Numerous physiological processes occur following bone fracture, including inflammatory cell recruitment, vascularization, and callus formation and remodeling. In particular circumstances, such as critical bone defects or osteonecrosis, the regenerative microenvironment is compromised, rendering endogenous stem/progenitor cells incapable of fully manifesting their reparative potential. Consequently, external interventions, such as grafting or augmentation, are frequently necessary. In situ bone tissue engineering (iBTE) employs cell-free scaffolds that possess microenvironmental cues, which, upon implantation, redirect the behavior of endogenous stem/progenitor cells towards a pro-regenerative inflammatory response and reestablish angiogenesis-osteogenesis coupling. This process ultimately results in vascularized bone regeneration (VBR). In this context, a comprehensive review of the current techniques and modalities in VBR-targeted iBTE technology is provided.
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Affiliation(s)
- Yijun He
- Department of Osteoarthropathy and Sports Medicine, Guangzhou Panyu Central Hospital, Guangzhou, Guangdong 511400, P.R. China
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
| | - Lin Liang
- Department of Osteoarthropathy and Sports Medicine, Guangzhou Panyu Central Hospital, Guangzhou, Guangdong 511400, P.R. China
| | - Cheng Luo
- Department of Osteoarthropathy and Sports Medicine, Guangzhou Panyu Central Hospital, Guangzhou, Guangdong 511400, P.R. China
| | - Zhi-Yong Zhang
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
| | - Jiongfeng Huang
- Department of Osteoarthropathy and Sports Medicine, Guangzhou Panyu Central Hospital, Guangzhou, Guangdong 511400, P.R. China
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18
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Kushioka J, Chow SKH, Toya M, Tsubosaka M, Shen H, Gao Q, Li X, Zhang N, Goodman SB. Bone regeneration in inflammation with aging and cell-based immunomodulatory therapy. Inflamm Regen 2023; 43:29. [PMID: 37231450 DOI: 10.1186/s41232-023-00279-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/09/2023] [Indexed: 05/27/2023] Open
Abstract
Aging of the global population increases the incidence of osteoporosis and associated fragility fractures, significantly impacting patient quality of life and healthcare costs. The acute inflammatory reaction is essential to initiate healing after injury. However, aging is associated with "inflammaging", referring to the presence of systemic low-level chronic inflammation. Chronic inflammation impairs the initiation of bone regeneration in elderly patients. This review examines current knowledge of the bone regeneration process and potential immunomodulatory therapies to facilitate bone healing in inflammaging.Aged macrophages show increased sensitivity and responsiveness to inflammatory signals. While M1 macrophages are activated during the acute inflammatory response, proper resolution of the inflammatory phase involves repolarizing pro-inflammatory M1 macrophages to an anti-inflammatory M2 phenotype associated with tissue regeneration. In aging, persistent chronic inflammation resulting from the failure of M1 to M2 repolarization leads to increased osteoclast activation and decreased osteoblast formation, thus increasing bone resorption and decreasing bone formation during healing.Inflammaging can impair the ability of stem cells to support bone regeneration and contributes to the decline in bone mass and strength that occurs with aging. Therefore, modulating inflammaging is a promising approach for improving bone health in the aging population. Mesenchymal stem cells (MSCs) possess immunomodulatory properties that may benefit bone regeneration in inflammation. Preconditioning MSCs with pro-inflammatory cytokines affects MSCs' secretory profile and osteogenic ability. MSCs cultured under hypoxic conditions show increased proliferation rates and secretion of growth factors. Resolution of inflammation via local delivery of anti-inflammatory cytokines is also a potential therapy for bone regeneration in inflammaging. Scaffolds containing anti-inflammatory cytokines, unaltered MSCs, and genetically modified MSCs can also have therapeutic potential. MSC exosomes can increase the migration of MSCs to the fracture site and enhance osteogenic differentiation and angiogenesis.In conclusion, inflammaging can impair the proper initiation of bone regeneration in the elderly. Modulating inflammaging is a promising approach for improving compromised bone healing in the aging population.
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Affiliation(s)
- Junichi Kushioka
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, USA.
| | - Simon Kwoon-Ho Chow
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Masakazu Toya
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Masanori Tsubosaka
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Huaishuang Shen
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Qi Gao
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Xueping Li
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Ning Zhang
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Stuart B Goodman
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, USA.
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Han X, Shen J, Chen S, Cai Z, Zhu Y, Yi W, Li K, Cai W, Tao B, Cui W, Bai D. Ultrasonic-controlled "explosive" hydrogels to precisely regulate spatiotemporal osteoimmune disturbance. Biomaterials 2023; 295:122057. [PMID: 36805244 DOI: 10.1016/j.biomaterials.2023.122057] [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: 08/17/2022] [Revised: 01/28/2023] [Accepted: 02/14/2023] [Indexed: 02/17/2023]
Abstract
Spatiotemporal Immune disorder is a key factor leading to the failure of bone tissue healing. It is of vital importance to accurately suppress excessive peak immune response within 24-48 h of the injury and so regulate the spatiotemporal osteoimmune disturbance of bones. In this study, Ultrasound Controlled "Explosive" (UCE) hydrogels were prepared from gelatin-hyaluronic acid methacrylate hydrogels loaded with resveratrol nanobubbles produced by double emulsification through a condensation reaction. Such materials innovatively enable ultrasound-controlled RES release for precise regulation of spatiotemporal osteoimmune disorders. Under an ultrasonic power level of 1.5 W/cm2, the rate of effectively released RES through the blast of UCE hydrogels reached 38.14 %. And compared with the control group, the in vivo inhibition of inflammation and osteogenesis effects of UCE hydrogels were more effective, respectively. As suggested by the results, the excessive local inflammatory response was inhibited by the release of resveratrol, the temporospatial disorder of bone immune was precisely regulated, and as a result, the process of bone repair was accelerated. Altogether, this study confirms that the newly created UCE Hydrogels effectively promote bone repair by intervening peak inflammation during the early phase of fracture healing.
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Affiliation(s)
- Xiaoyu Han
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China; Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Jieliang Shen
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Shuyu Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Zhengwei Cai
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Ying Zhu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Weiwei Yi
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Kai Li
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Weiye Cai
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Bailong Tao
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China.
| | - Dingqun Bai
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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Irfan D, Ahmad I, Patra I, Margiana R, Rasulova MT, Sivaraman R, Kandeel M, Mohammad HJ, Al-Qaim ZH, Jawad MA, Mustafa YF, Ansari MJ. Stem cell-derived exosomes in bone healing: focusing on their role in angiogenesis. Cytotherapy 2023; 25:353-361. [PMID: 36241491 DOI: 10.1016/j.jcyt.2022.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/26/2022] [Accepted: 08/30/2022] [Indexed: 12/12/2022]
Abstract
Fractures in bone, a tissue critical in protecting other organs, affect patients' quality of life and have a heavy economic burden on societies. Based on regenerative medicine and bone tissue engineering approaches, stem cells have become a promising and attractive strategy for repairing bone fractures via differentiation into bone-forming cells and production of favorable mediators. Recent evidence suggests that stem cell-derived exosomes could mediate the therapeutic effects of their counterpart cells and provide a cell-free therapeutic strategy in bone repair. Since bone is a highly vascularized tissue, coupling angiogenesis and osteogenesis is critical in bone fracture healing; thus, developing therapeutic strategies to promote angiogenesis will facilitate bone regeneration and healing. To this end, stem cell-derived exosomes with angiogenic potency have been developed to improve fracture healing. This review summarizes the effects of stem cell-derived exosomes on the repair of bone tissue, focusing on the angiogenesis process.
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Affiliation(s)
- Daniyal Irfan
- School of Management, Guangzhou University, Guangzhou, China
| | - Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Ria Margiana
- Department of Anatomy, Faculty of Medicine, Universitas Indonesia, Depok, Indonesia; Master's Programme Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Depok, Indonesia; Dr Soetomo General Academic Hospital, Surabaya, Indonesia.
| | | | - R Sivaraman
- Department of Mathematics, Dwaraka Doss Goverdhan Doss Vaishnav College, University of Madras, Chennai, India
| | - Mahmoud Kandeel
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia; Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelshikh University, Kafrelshikh, Egypt.
| | | | | | | | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, Iraq
| | - Mohammad Javed Ansari
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
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Pu P, Wu S, Zhang K, Xu H, Guan J, Jin Z, Sun W, Zhang H, Yan B. Mechanical force induces macrophage-derived exosomal UCHL3 promoting bone marrow mesenchymal stem cell osteogenesis by targeting SMAD1. J Nanobiotechnology 2023; 21:88. [PMID: 36915132 PMCID: PMC10012474 DOI: 10.1186/s12951-023-01836-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 03/02/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND Orthodontic tooth movement (OTM), a process of alveolar bone remodelling, is induced by mechanical force and regulated by local inflammation. Bone marrow-derived mesenchymal stem cells (BMSCs) play a fundamental role in osteogenesis during OTM. Macrophages are mechanosensitive cells that can regulate local inflammatory microenvironment and promote BMSCs osteogenesis by secreting diverse mediators. However, whether and how mechanical force regulates osteogenesis during OTM via macrophage-derived exosomes remains elusive. RESULTS Mechanical stimulation (MS) promoted bone marrow-derived macrophage (BMDM)-mediated BMSCs osteogenesis. Importantly, when exosomes from mechanically stimulated BMDMs (MS-BMDM-EXOs) were blocked, the pro-osteogenic effect was suppressed. Additionally, compared with exosomes derived from BMDMs (BMDM-EXOs), MS-BMDM-EXOs exhibited a stronger ability to enhance BMSCs osteogenesis. At in vivo, mechanical force-induced alveolar bone formation was impaired during OTM when exosomes were blocked, and MS-BMDM-EXOs were more effective in promoting alveolar bone formation than BMDM-EXOs. Further proteomic analysis revealed that ubiquitin carboxyl-terminal hydrolase isozyme L3 (UCHL3) was enriched in MS-BMDM-EXOs compared with BMDM-EXOs. We went on to show that BMSCs osteogenesis and mechanical force-induced bone formation were impaired when UCHL3 was inhibited. Furthermore, mothers against decapentaplegic homologue 1 (SMAD1) was identified as the target protein of UCHL3. At the mechanistic level, we showed that SMAD1 interacted with UCHL3 in BMSCs and was downregulated when UCHL3 was suppressed. Consistently, overexpression of SMAD1 rescued the adverse effect of inhibiting UCHL3 on BMSCs osteogenesis. CONCLUSIONS This study suggests that mechanical force-induced macrophage-derived exosomal UCHL3 promotes BMSCs osteogenesis by targeting SMAD1, thereby promoting alveolar bone formation during OTM.
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Affiliation(s)
- Panjun Pu
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210000, China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Shengnan Wu
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210000, China
| | - Kejia Zhang
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210000, China
| | - Hao Xu
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210000, China
| | - Jiani Guan
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210000, China
| | - Zhichun Jin
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210000, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210000, China
| | - Wen Sun
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210000, China
| | - Hanwen Zhang
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 210000, China.
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, 210000, China.
| | - Bin Yan
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210000, China.
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210000, China.
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210000, China.
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Lv L, Cheng W, Wang S, Lin S, Dang J, Ran Z, Zhu H, Xu W, Huang Z, Xu P, Xu H. Poly(β-amino ester) Dual-Drug-Loaded Hydrogels with Antibacterial and Osteogenic Properties for Bone Repair. ACS Biomater Sci Eng 2023; 9:1976-1990. [PMID: 36881921 DOI: 10.1021/acsbiomaterials.2c01524] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
In this study, we developed a poly(β-amino ester) (PBAE) hydrogel for the double release of vancomycin (VAN) and total flavonoids of Rhizoma Drynariae (TFRD). VAN was covalently bonded to PBAE polymer chains and was released to enhance the antimicrobial effect first. TFRD chitosan (CS) microspheres were physically dispersed in the scaffold, TFRD was released from the microspheres, and osteogenesis was induced subsequently. The scaffold had good porosity (90.12 ± 3.27%), and the cumulative release rate of the two drugs in PBS (pH 7.4) solution exceeded 80%. In vitro antimicrobial assays demonstrated the antibacterial properties of the scaffold against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Besides these, cell viability assays indicated that the scaffold had good biocompatibility. Moreover, alkaline phosphatase and matrix mineralization were expressed more than in the control group. Overall, cell experiments confirmed that the scaffolds have enhanced osteogenic differentiation capabilities. In conclusion, the dual-drug-loaded scaffold with antibacterial and bone regeneration effects is promising in the field of bone repair.
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Affiliation(s)
- Lu Lv
- Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Wanting Cheng
- Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Sining Wang
- Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Sihui Lin
- Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Jiarui Dang
- Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Zhihui Ran
- Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Hong Zhu
- Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Wenjin Xu
- Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Zhijun Huang
- Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Peihu Xu
- Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Haixing Xu
- Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
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Zhou Y, Hu Z, Jin W, Wu H, Zuo M, Shao C, Lan Y, Shi Y, Tang R, Chen Z, Xie Z, Shi J. Intrafibrillar Mineralization and Immunomodulatory for Synergetic Enhancement of Bone Regeneration via Calcium Phosphate Nanocluster Scaffold. Adv Healthc Mater 2023; 12:e2201548. [PMID: 36867636 DOI: 10.1002/adhm.202201548] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 01/23/2023] [Indexed: 03/04/2023]
Abstract
Inspired by the bionic mineralization theory, organic-inorganic composites with hydroxyapatite nanorods orderly arranged along collagen fibrils have attracted extensive attention. Planted with an ideal bone scaffold will contribute greatly to the osteogenic microenvironment; however, it remains challenging to develop a biomimetic scaffold with the ability to promote intrafibrillar mineralization and simultaneous regulation of immune microenvironment in situ. To overcome these challenges, a scaffold containing ultra-small particle size calcium phosphate nanocluster (UsCCP) is prepared, which can enhance bone regeneration through the synergetic effect of intrafibrillar mineralization and immunomodulatory. By efficient infiltration into collagen fibrils, the UsCCP released from the scaffold achieves intrafibrillar mineralization. It also promotes the M2-type polarization of macrophages, leading to an immune microenvironment with both osteogenic and angiogenic potential. The results confirm that the UsCCP scaffold has both intrafibrillar mineralization and immunomodulatory effects, making it a promising candidate for bone regeneration.
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Affiliation(s)
- Yanyan Zhou
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China
| | - Zihe Hu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China
| | - Wenjing Jin
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China
| | - Haiyan Wu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China
| | - Minghao Zuo
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China
| | - Changyu Shao
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China
| | - Yanhua Lan
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China
| | - Yang Shi
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China
| | - Ruikang Tang
- Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Zhuo Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China
| | - Zhijian Xie
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China
| | - Jue Shi
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China
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24
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Li Y, Liu L, Li Y, Song W, Shao B, Li H, Lin W, Li Q, Shuai X, Bai M, Zhao B, Guo Y, Yuan Q, Wang Y. Alpha-ketoglutarate promotes alveolar bone regeneration by modulating M2 macrophage polarization. Bone Rep 2023; 18:101671. [PMID: 37007218 PMCID: PMC10064115 DOI: 10.1016/j.bonr.2023.101671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/07/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
Objectives Alpha-ketoglutarate (αKG) is an essential metabolite that plays a crucial role in skeletal homeostasis. Here we aim to investigate the effect of αKG on alveolar socket healing and reveal the underlying mechanism in the view of macrophage polarization. Methods In a murine model pretreated with or without αKG, mandibular first molars were extracted. Mandibular tissues were harvested for microCT and histological analyses. Immunofluorescence was used to evaluate macrophage polarization during healing process. Macrophages with αKG/vehicle supplementation in vitro were proceeded to quantitative real-time PCR and flow cytometry to further elucidate the mechanism. Results MicroCT and histological analyses showed accelerated healing and enhanced bone regeneration of extraction sockets in experimental group. αKG increased new bone volume in alveolar sockets and promoted the activity of both osteoblastogenesis and osteoclastogenesis. αKG administration reduced M1 pro-inflammatory macrophages in an early phase and promoted anti-inflammatory M2 macrophage polarization in a later phase. Consistently, the expressions of M2 marker genes were augmented in αKG group, while M1 marker genes were downregulated. Flow cytometry revealed the increased ratio of M2/M1 macrophages in cells treated with αKG. Conclusions αKG accelerates the healing process of extraction sockets via orchestrating macrophage activation, with promising therapeutic potential in oral clinics.
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25
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Qiu E, Gong Y, Yao J, Lai J, Liu Z, Yang DP, Shen L, Chen X. A dual aperture (mesoporous and macroporous) system loaded with cell-free fat extract to optimize bone regeneration microenvironment. J Mater Chem B 2023; 11:826-836. [PMID: 36601875 DOI: 10.1039/d2tb01980a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Injured bone regeneration requires a systemically and carefully orchestrated series of events involving inflammation, angiogenesis, and osteogenesis. Thus, we designed a multifunctional cell-supporting and drug-retarding dual-pore system: cell-free fat extract (Ceffe)-mesoporous silica nanoparticle (MSN)@poly(lactic-co-glycolic acid) (PLGA) (Ceffe-MSN@PLGA) to mimic the developmental spatial structure, the microenvironment of bone regeneration and integration during injured bone regeneration. In this system, a macroporous scaffold (pore size 200-250 μm) of PLGA is combined with mesoporous MSN (pore size 2-50 nm), aiming at realizing the slow release of Ceffe. Besides, PLGA and MSN are used to recruit the temporary support of cells that are able to degrade simultaneously with bone regeneration and provide space for bone tissue regeneration. And the Ceffe isolated from fresh human adipose tissue has a therapeutic effect in regulating the important functions of early inflammatory cell transformation, neovascularization and eventual osteogenic differentiation. Our results suggest that the mesoporous and macroporous Ceffe-MSN@PLGA system represents a promising strategy to better fit the regeneration of injured bone tissue.
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Affiliation(s)
- Enhui Qiu
- The Second Affiliated Hospital of Fujian Medical University, Fujian 362000, China.
| | - Yan Gong
- Department of Thoracic Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Jieran Yao
- The Second Affiliated Hospital of Fujian Medical University, Fujian 362000, China.
| | - Jinqing Lai
- The Second Affiliated Hospital of Fujian Medical University, Fujian 362000, China.
| | - Zhihua Liu
- The Second Affiliated Hospital of Fujian Medical University, Fujian 362000, China.
| | - Da-Peng Yang
- Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, Fujian Province, P. R. China
| | - Li Shen
- Department of Thoracic Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Xiangrong Chen
- The Second Affiliated Hospital of Fujian Medical University, Fujian 362000, China.
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26
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Li D, Li X, Zhang J, Tang Z, Tian A. The immunomodulatory effect of IL-4 accelerates bone substitute material-mediated osteogenesis in aged rats via NLRP3 inflammasome inhibition. Front Immunol 2023; 14:1121549. [PMID: 37153554 PMCID: PMC10157059 DOI: 10.3389/fimmu.2023.1121549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 04/10/2023] [Indexed: 05/09/2023] Open
Abstract
Background Bone defect repair by implanting bone substitute materials has been a common clinical treatment. With the understanding of substance-immune system interactions and increasing evidence indicating that the post-implantation immune response determines the fate of bone substitute materials, active modulation of host macrophage polarization is considered a promising strategy. However, whether the same regulatory effects exist when an individual immune system is altered with aging is unclear. Methods In this study, we mechanistically investigated the effect of immunosenescence on the active regulation of macrophage polarization by establishing a cranial bone defect model in young and aged rats implanted with Bio-Oss®. Forty-eight young and 48 aged specific pathogen-free (SPF) male SD rats were randomly divided into two groups. In the experimental group, 20 μL of IL-4 (0.5 μg/mL) was injected locally on the third to seventh postoperative days, while an equal volume of PBS was injected in the control group. Specimens were collected at 1, 2, 6, and 12 weeks postoperatively, and bone regeneration at the defect site was evaluated by micro-CT, histomorphometry, immunohistochemistry, double-labeling immunofluorescence, and RT-qPCR. Results The application of exogenous IL-4 reduced activation of NLRP3 inflammasomes by promoting the polarization of M1 macrophages to M2 macrophages, thus promoting bone regeneration at the site of bone defects in aged rats. However, this effect was gradually weakened after the IL-4 intervention was discontinued. Conclusion Our data confirmed that a strategy to regulate macrophage polarization is also feasible under conditions of immunosenescence, i.e., the local inflammatory microenvironment can be regulated by reducing M1-type macrophages. However, further experiments are needed to determine an exogenous IL-4 intervention that can maintain a more sustained effect.
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Affiliation(s)
- Duchenhui Li
- Department of Prosthodontics and Implantology, School and Hospital of Stomatology of Guizhou Medical University, Guiyang, Guizhou, China
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology of Guizhou Medical University, Guiyang, China
- Department of Physiology and Pathology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Xiao Li
- Department of Oral and Maxillofacial Surgery, Guiyang Hospital of Stomatology, Guiyang, Guizhou, China
| | - Jie Zhang
- Department of Prosthodontics and Implantology, School and Hospital of Stomatology of Guizhou Medical University, Guiyang, Guizhou, China
| | - Zhenglong Tang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology of Guizhou Medical University, Guiyang, China
- Department of Physiology and Pathology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
- *Correspondence: Ai Tian, ; Zhenglong Tang,
| | - Ai Tian
- Department of Prosthodontics and Implantology, School and Hospital of Stomatology of Guizhou Medical University, Guiyang, Guizhou, China
- *Correspondence: Ai Tian, ; Zhenglong Tang,
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27
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Wang Y, Lu Y, Chen W, Xie X. Inhibition of ferroptosis alleviates high-power microwave-induced myocardial injury. Front Cardiovasc Med 2023; 10:1157752. [PMID: 37168653 PMCID: PMC10165085 DOI: 10.3389/fcvm.2023.1157752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/06/2023] [Indexed: 05/13/2023] Open
Abstract
Background The use of high-power microwave (HPM) in our daily live is becoming more and more widespread, but the safety has also caused our concern. And ferroptosis is a newly discovered modality that can regulate cell death in recent years. The aim of our study was to demonstrate whether ferroptosis is an important cause of myocardial injury caused by HPM. And whether myocardial injury caused by HPM can be alleviated by inhibiting ferroptosis. Methods We verified the extent of myocardial damage by different doses of HPM through in vivo and in vitro assays, respectively. In addition, GPX4 was knocked down and overexpressed in cardiac myocytes to verify the altered sensitivity of cardiac myocytes to HPM. Finally, the therapeutic effect of Fer-1 and tanshinoneIIA on myocardial injury caused by HPM was verified in in vivo and in vitro assays. Results We found that cardiac tissue and cardiomyocyte injury in mice gradually increased with increasing HPM dose, while ferroptosis markers were consistent with the injury trend. Gpx4 had an important role in ferroptosis in cardiomyocytes caused by HPM. Finally, tanshinoneIIA and Fer-1 could attenuate the damage of cardiac tissues and cardiomyocytes caused by HPM. Conclusions In conclusion, our study found that ferroptosis, a novel mode of cell death, is present in myocardial injury caused by HPM. Moreover, tanshinone, a drug already in clinical use, can significantly reduce myocardial injury caused by HPM, which is promising to provide new therapeutic ideas for myocardial injury caused by HPM.
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Affiliation(s)
| | | | - Wen Chen
- Correspondence: Xiaohua Xie Wen Chen
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Fu M, Li J, Liu M, Yang C, Wang Q, Wang H, Chen B, Fu Q, Sun G. Sericin/Nano-Hydroxyapatite Hydrogels Based on Graphene Oxide for Effective Bone Regeneration via Immunomodulation and Osteoinduction. Int J Nanomedicine 2023; 18:1875-1895. [PMID: 37051313 PMCID: PMC10084881 DOI: 10.2147/ijn.s399487] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 04/05/2023] [Indexed: 04/14/2023] Open
Abstract
Background Immune responses and osteogenesis differentiation induced by implants are crucial for bone tissue regeneration. Consideration of only one of those properties is not sufficient. To investigate the synergistic actions, we designed alginate/graphene oxide/sericin/nanohydroxyapatite (Alg/GO/Ser/nHAP) nanocomposite hydrogels with both osteoimmunomodulatory and osteoinductive activities. This study aimed to explore the effect of hydrogel with osteoimmunomodulatory properties on promoting osteogenesis of bone marrow stem cells (BMSCs). Methods Alg/GO/Ser/nHAP nanocomposite hydrogel was fabricated and was characterized by SEM, FTIR, XRD, stress-strain, rheology, swelling and degradation. After the impact of sericin on M2 macrophage polarization was identified, the BMSCs viability and adhesion were evaluated by CCK8 assay, live/dead staining, cytoskeleton staining. The cell osteogenic differentiation was observed by ALP/ARS staining, immunofluorescence staining, RT-PCR, and Western blotting, respectively. Rat cranial defect model was used to assess osteoimmunomodulatory effects of scaffolds in vivo by micro‑computed tomographic, histological, and immunohistochemical analyses after 8 weeks of healing. Results In vitro experiments revealed that the hydrogel presented desirable mechanical strength, stability, porosity, and biocompatibility. Significantly, sericin and nHAP appeared to exert synergistic effects on bone regeneration. Sericin was observed to inhibit the immune response by inducing macrophage M2-type polarization to create a positive osteoimmune microenvironment, contributing to improving osseointegration at the bone-implant interface to promote osteogenesis. However, the osteogenic differentiation in rat BMSCs was further enhanced by combining nHAP and sericin in the nanocomposite hydrogel. Eventually, the hydrogel was implanted into the rat cranial defect model, assisting in the reduction of local inflammation and efficient bone regeneration. Conclusion The nanocomposite hydrogel stimulated bone formation by the synergistic effects of immunomodulation of macrophage polarization by sericin and direct osteogenic induction by nHAP, demonstrating that such a scaffold that modulates the osteoimmune microenvironment to promote osteogenesis is a promising approach for the development of bone tissue engineering implants in the future.
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Affiliation(s)
- Mei Fu
- Department of Traumatic Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Jun Li
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Mingchong Liu
- Department of Traumatic Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Chensong Yang
- Department of Traumatic Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Qidong Wang
- Department of Traumatic Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Hongrui Wang
- Department of Orthopedic Trauma, Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai, People’s Republic of China
| | - Bingdi Chen
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Qingge Fu
- Department of Orthopedic Trauma, Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai, People’s Republic of China
| | - Guixin Sun
- Department of Traumatic Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
- Correspondence: Guixin Sun; Qingge Fu, Email ;
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Xuan Y, Li L, Zhang C, Zhang M, Cao J, Zhang Z. The 3D-Printed Ordered Bredigite Scaffold Promotes Pro-Healing of Critical-Sized Bone Defects by Regulating Macrophage Polarization. Int J Nanomedicine 2023; 18:917-932. [PMID: 36844434 PMCID: PMC9951604 DOI: 10.2147/ijn.s393080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 01/29/2023] [Indexed: 02/22/2023] Open
Abstract
Background Repairing critical-sized bone defects secondary to traumatic or tumorous damage is a complex conundrum in clinical practice; in this case, artificial scaffolds exhibited preferable outcomes. Bredigite (BRT, Ca7MgSi4O16) bioceramic possesses excellent physicochemical properties and biological activity as a promising candidate for bone tissue engineering. Methods Structurally ordered BRT (BRT-O) scaffolds were fabricated by a three-dimensional (3D) printing technique, and the random BRT (BRT-R) scaffolds and clinically available β-tricalcium phosphate (β-TCP) scaffolds were compared as control groups. Their physicochemical properties were characterized, and RAW 264.7 cells, bone marrow mesenchymal stem cells (BMSCs), and rat cranial critical-sized bone defect models were utilized for evaluating macrophage polarization and bone regeneration. Results The BRT-O scaffolds exhibited regular morphology and homogeneous porosity. In addition, the BRT-O scaffolds released higher concentrations of ionic products based on coordinated biodegradability than the β-TCP scaffolds. In vitro, the BRT-O scaffolds facilitated RWA264.7 cells polarization to pro-healing M2 macrophage phenotype, whereas the BRT-R and β-TCP scaffolds stimulated more pro-inflammatory M1-type macrophages. A conditioned medium derived from macrophages seeding on the BRT-O scaffolds notably promoted the osteogenic lineage differentiation of BMSCs in vitro. The cell migration ability of BMSCs was significantly enhanced under the BRT-O-induced immune microenvironment. Moreover, in rat cranial critical-sized bone defect models, the BRT-O scaffolds group promoted new bone formation with a higher proportion of M2-type macrophage infiltration and expression of osteogenesis-related markers. Therefore, in vivo, BRT-O scaffolds play immunomodulatory roles in promoting critical-sized bone defects by enhancing the polarization of M2 macrophages. Conclusion 3D-printed BRT-O scaffolds can be a promising option for bone tissue engineering, at least partly through macrophage polarization and osteoimmunomodulation.
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Affiliation(s)
- Yaowei Xuan
- Department of Stomatology, The First Medical Centre, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Lin Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Chenping Zhang
- Department of Oral Maxillofacial-Head Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.,College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People's Republic of China
| | - Min Zhang
- Department of Stomatology, The First Medical Centre, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Junkai Cao
- Department of Stomatology, The First Medical Centre, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Zhen Zhang
- Department of Oral Maxillofacial-Head Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.,College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People's Republic of China
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Li J, Song J, Meng D, Yi Y, Zhang T, Shu Y, Wu X. Electrospun naringin-loaded microsphere/sucrose acetate isobutyrate system promotes macrophage polarization toward M2 and facilitates osteoporotic bone defect repair. Regen Biomater 2023; 10:rbad006. [PMID: 36911145 PMCID: PMC9998078 DOI: 10.1093/rb/rbad006] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/20/2023] [Accepted: 01/30/2023] [Indexed: 02/22/2023] Open
Abstract
Repairing osteoporotic bone defects is still a major clinical challenge. Recent studies have revealed that immune response is also essential in osteogenesis. The intrinsic inflammatory response of the host, especially the M1/M2 polarization status and inflammatory secretory function of macrophages, can directly affect osteogenic differentiation. Therefore, in this study, an electrospun naringin-loaded microspheres/sucrose acetate isobutyrate (Ng-m-SAIB) system was constructed to investigate its effect on the polarization of macrophage and osteoporotic bone defects. The results of both in vitro and in vivo experiments showed that Ng-m-SAIB had good biocompatibility and could promote the polarization of macrophage toward M2, thereby forming a favorable microenvironment for osteogenesis. The animal experiments also showed that Ng-m-SAIB could promote the osteogenesis of critical size defects in the skull of the osteoporotic model mouse (the senescence-accelerated mouse-strain P6). Together, these results collectively suggested that Ng-m-SAIB might be a promising biomaterial to treat osteoporotic bone defects with favorable osteo-immunomodulatory effects.
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Affiliation(s)
- Jihong Li
- Stomatological Hospital of Chongqing Medical University, No. 426 Songshibei Road, Yubei District, Chongqing 401147, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Jinlin Song
- Stomatological Hospital of Chongqing Medical University, No. 426 Songshibei Road, Yubei District, Chongqing 401147, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Di Meng
- Stomatological Hospital of Chongqing Medical University, No. 426 Songshibei Road, Yubei District, Chongqing 401147, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Yin Yi
- Stomatological Hospital of Chongqing Medical University, No. 426 Songshibei Road, Yubei District, Chongqing 401147, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Ting Zhang
- Stomatological Hospital of Chongqing Medical University, No. 426 Songshibei Road, Yubei District, Chongqing 401147, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Yu Shu
- Stomatological Hospital of Chongqing Medical University, No. 426 Songshibei Road, Yubei District, Chongqing 401147, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Xiaohong Wu
- Stomatological Hospital of Chongqing Medical University, No. 426 Songshibei Road, Yubei District, Chongqing 401147, China.,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
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Xu Z, Wu L, Tang Y, Xi K, Tang J, Xu Y, Xu J, Lu J, Guo K, Gu Y, Chen L. Spatiotemporal Regulation of the Bone Immune Microenvironment via Dam-Like Biphasic Bionic Periosteum for Bone Regeneration. Adv Healthc Mater 2023; 12:e2201661. [PMID: 36189833 DOI: 10.1002/adhm.202201661] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 09/24/2022] [Indexed: 02/03/2023]
Abstract
The bone immune microenvironment (BIM) regulates bone regeneration and affects the prognosis of fractures. However, there is currently no effective strategy that can precisely modulate macrophage polarization to improve BIM for bone regeneration. Herein, a hybridized biphasic bionic periosteum, inspired by the BIM and functional structure of the natural periosteum, is presented. The gel phase is composed of genipin-crosslinked carboxymethyl chitosan and collagen self-assembled hybrid hydrogels, which act as the "dam" to intercept IL-4 released during the initial burst from the bionic periosteum fiber phase, thus maintaining the moderate inflammatory response of M1 macrophages for mesenchymal stem cell recruitment and vascular sprouting at the acute fracture. With the degradation of the gel phase, released IL-4 cooperates with collagen to promote the polarization towards M2 macrophages, which reconfigure the local microenvironment by secreting PDGF-BB and BMP-2 to improve vascular maturation and osteogenesis twofold. In rat cranial defect models, the controlled regulation of the BIM is validated with the temporal transition of the inflammatory/anti-inflammatory process to achieve faster and better bone defect repair. This strategy provides a drug delivery system that constructs a coordinated BIM, so as to break through the predicament of the contradiction between immune response and bone tissue regeneration.
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Affiliation(s)
- Zonghan Xu
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, P. R. China
| | - Liang Wu
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, P. R. China
| | - Yu Tang
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, P. R. China
| | - Kun Xi
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, P. R. China
| | - Jincheng Tang
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, P. R. China
| | - Yichang Xu
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, P. R. China
| | - Jingzhi Xu
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, P. R. China
| | - Jian Lu
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, P. R. China
| | - Kaijin Guo
- Department of Orthopedics, the Affiliated Hospital of Xuzhou Medical University, 99 Huaihai West Road, Xuzhou, Jiangsu, 221000, P. R. China
| | - Yong Gu
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, P. R. China
| | - Liang Chen
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, P. R. China
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32
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Immunomodulatory PEG-CRGD Hydrogels Promote Chondrogenic Differentiation of PBMSCs. Pharmaceutics 2022; 14:pharmaceutics14122622. [PMID: 36559119 PMCID: PMC9780903 DOI: 10.3390/pharmaceutics14122622] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022] Open
Abstract
Cartilage damage is a common injury. Currently, tissue engineering scaffolds with composite seed cells have emerged as a promising approach for cartilage repair. Polyethylene glycol (PEG) hydrogels are attractive tissue engineering scaffold materials as they have high water absorption capacity as well as nontoxic and nutrient transport properties. However, PEG is fundamentally bio-inert and lacks intrinsic cell adhesion capability, which is critical for the maintenance of cell function. Cell adhesion peptides are usually added to improve the cell adhesion capability of PEG-based hydrogels. The suitable cell adhesion peptide can not only improve cell adhesion capability, but also promote chondrogenesis and regulate the immune microenvironment. To improve the interactions between cells and PEG hydrogels, we designed cysteine-arginine-glycine-aspartic acid (CRGD), a cell adhesion peptide covalently cross-linked with PEG hydrogels by a Michael addition reaction, and explored the tissue-engineering hydrogels with immunomodulatory effects and promoted chondrogenic differentiation of mesenchymal stem cells (MSCs). The results indicated that CRGD improved the interaction between peripheral blood mesenchymal stem cells (PBMSCs) and PEG hydrogels. PEG hydrogels modified with 1 mM CRGD had the optimal capacity to promote chondrogenic differentiation, and CRGD could induce macrophage polarization towards the M2 phenotype to promote tissue regeneration and repair. PEG-CRGD hydrogels combined with PBMSCs have the potential to be suitable scaffolds for cartilage tissue engineering.
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Lv B, Wu J, Xiong Y, Xie X, Lin Z, Mi B, Liu G. Functionalized multidimensional biomaterials for bone microenvironment engineering applications: Focus on osteoimmunomodulation. Front Bioeng Biotechnol 2022; 10:1023231. [PMID: 36406210 PMCID: PMC9672076 DOI: 10.3389/fbioe.2022.1023231] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 10/20/2022] [Indexed: 09/26/2023] Open
Abstract
As bone biology develops, it is gradually recognized that bone regeneration is a pathophysiological process that requires the simultaneous participation of multiple systems. With the introduction of osteoimmunology, the interplay between the immune system and the musculoskeletal diseases has been the conceptual framework for a thorough understanding of both systems and the advancement of osteoimmunomodulaty biomaterials. Various therapeutic strategies which include intervention of the surface characteristics or the local delivery systems with the incorporation of bioactive molecules have been applied to create an ideal bone microenvironment for bone tissue regeneration. Our review systematically summarized the current research that is being undertaken in the field of osteoimmunomodulaty bone biomaterials on a case-by-case basis, aiming to inspire more extensive research and promote clinical conversion.
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Affiliation(s)
| | | | | | | | | | - Bobin Mi
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guohui Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Al-Hakim Khalak F, García-Villén F, Ruiz-Alonso S, Pedraz JL, Saenz-del-Burgo L. Decellularized Extracellular Matrix-Based Bioinks for Tendon Regeneration in Three-Dimensional Bioprinting. Int J Mol Sci 2022; 23:12930. [PMID: 36361719 PMCID: PMC9657326 DOI: 10.3390/ijms232112930] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 11/08/2023] Open
Abstract
In the last few years, attempts to improve the regeneration of damaged tendons have been rising due to the growing demand. However, current treatments to restore the original performance of the tissue focus on the usage of grafts; although, actual grafts are deficient because they often cannot provide enough support for tissue regeneration, leading to additional complications. The beneficial effect of combining 3D bioprinting and dECM as a novel bioink biomaterial has recently been described. Tendon dECMs have been obtained by using either chemical, biological, or/and physical treatments. Although decellularization protocols are not yet standardized, recently, different protocols have been published. New therapeutic approaches embrace the use of dECM in bioinks for 3D bioprinting, as it has shown promising results in mimicking the composition and the structure of the tissue. However, major obstacles include the poor structural integrity and slow gelation properties of dECM bioinks. Moreover, printing parameters such as speed and temperature have to be optimized for each dECM bioink. Here, we show that dECM bioink for 3D bioprinting provides a promising approach for tendon regeneration for future clinical applications.
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Affiliation(s)
- Fouad Al-Hakim Khalak
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Health Institute Carlos III, Monforte de Lemos 3-5, 28029 Madrid, Spain
- Bioaraba Health Research Institute, Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
| | - Fátima García-Villén
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Health Institute Carlos III, Monforte de Lemos 3-5, 28029 Madrid, Spain
- Bioaraba Health Research Institute, Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
| | - Sandra Ruiz-Alonso
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Health Institute Carlos III, Monforte de Lemos 3-5, 28029 Madrid, Spain
- Bioaraba Health Research Institute, Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
| | - José Luis Pedraz
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Health Institute Carlos III, Monforte de Lemos 3-5, 28029 Madrid, Spain
- Bioaraba Health Research Institute, Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
| | - Laura Saenz-del-Burgo
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Health Institute Carlos III, Monforte de Lemos 3-5, 28029 Madrid, Spain
- Bioaraba Health Research Institute, Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
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You Y, Wang W, Li Y, Song Y, Jiao J, Wang Y, Chen B, Liu J, Qi H, Liang Y. Aspirin/PLGA coated 3D-printed Ti-6Al-4V alloy modulate macrophage polarization to enhance osteoblast differentiation and osseointegration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:73. [PMID: 36209337 PMCID: PMC9547804 DOI: 10.1007/s10856-022-06697-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Although titanium (Ti) and Ti-based alloy have been widely used as dental and orthopedic implant materials, its bioinertness hindered the rapid osseointegration. Therefore, it is recommended to acquire ideal topographic and chemical characteristics through surface modification methods. 3D printing is a delicate manufacture technique which possesses superior controllability and reproducibility. While aspirin serve as a well-established non-steroidal anti-inflammatory agent. Recently, the importance of immune system in regulating bone dynamics has attracted increasing attention. We herein superimposed the aspirin/poly (lactic-co-glycolic acid) (ASP/PLGA) coating on the 3D-printed Ti-6Al-4V surface with uniform micro-structure to establish the Ti64-M-ASP/PLGA substrate. Scanning electron microscopy (SEM), x-ray photoelectron spectroscopy (XPS) and contact angle test confirmed the successful fabrication of the Ti64-M-ASP/PLGA substrate, with increased wettability and sustained release pattern of ASP. Compared with the Ti64 base material, the Ti64-M-ASP/PLGA substrate showed enhanced M2 and depressed M1 genes and proteins expressions in macrophages. The novel Ti64-M-ASP/PLGA substrate also displayed enhanced osteoblast proliferation, adhesion, extracellular mineralization ability and osteogenic gene expressions when cultured with macrophage conditioned medium in vitro. Furthermore, rat femora implantation model was used for in vivo evaluation. After 4 weeks of implantation, push out test, micro-computed tomography (micro-CT) and histological analyses all confirmed the superior osseointegration capabilities of the Ti64-M-ASP/PLGA implant than the other groups. Our study revealed the synergistic role played by 3D-printed micro topography and immunoregulatory drug aspirin in promoting osteogenesis in vitro and accelerating osseointegration in vivo, thus providing a promising method for better modifying the implant surface. Graphical abstract.
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Affiliation(s)
- Yapeng You
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
- The Affiliated Stomatology Hospital of Kunming Medical University, Kunming, Yunnan, 650100, China
| | - Wanmeng Wang
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Ying Li
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China.
| | - Yunjia Song
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Jian Jiao
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Yao Wang
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Bo Chen
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Jialin Liu
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Hui Qi
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Yu Liang
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
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Chen L, Yao Z, Zhang S, Tang K, Yang Q, Wang Y, Li B, Nie Y, Tian X, Sun L. Biomaterial-induced macrophage polarization for bone regeneration. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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37
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Sun Y, Zhou Q, Du Y, Sun J, Bi W, Liu W, Li R, Wu X, Yang F, Song L, Li N, Cui W, Yu Y. Dual Biosignal-Functional Injectable Microspheres for Remodeling Osteogenic Microenvironment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201656. [PMID: 35419952 DOI: 10.1002/smll.202201656] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Bone defect regeneration depends on the population and lifespan of M2 macrophages, which are regulated by dual signals generated by the "physical" spatial configuration of biological tissues and "molecular" chemokines. Herein, inspired by the reprogramming of macrophages, immunoengineered porous microspheres are constructed to accelerate bone repair through the regulation of both "physical" and "molecular" signals. The porous structure of injectable poly (l-lactic acid) (PLLA) microspheres prepared by the microfluidic technique provides a "physical signal" for osteogenic differentiation. Additionally, interleukin (IL)-4-loaded liposomes (Ls) are modified on PLLA microspheres through amide bonds to produce IL-4/Ls/PLLA microspheres, providing a "molecular signal" in stimulating the differentiation of macrophages to M2 type. It is confirmed that IL-4/Ls/PLLA microspheres could induce M2-macrophages polarization and potentiate osteoblast proliferation and differentiation while coculturing with macrophages and osteoblasts in vitro. Besides, IL-4/Ls/PLLA microspheres are proved to promote bone defect regeneration by inducing the conversion of M1 macrophages to M2 through dual biosignal-functional regulation in both the calvaria defect and maxillary sinus defect models. Overall, the immuno-reprogrammed IL-4/Ls/PLLA microspheres achieve the precise immuno-reprogramming of macrophages by dual biosignal-functional regulation. This immune reengineering strategy paves a way for clinical bone defect treatment.
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Affiliation(s)
- Yang Sun
- Department of Stomatology, Zhongshan hospital, Fudan University, No. 180 Fenglin road, Shanghai, 200032, China
| | - Qianrong Zhou
- Department of Stomatology, Zhongshan hospital, Fudan University, No. 180 Fenglin road, Shanghai, 200032, China
| | - Yawei Du
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Jian Sun
- Department of Stomatology, Zhongshan hospital, Fudan University, No. 180 Fenglin road, Shanghai, 200032, China
| | - Wei Bi
- Department of Stomatology, Zhongshan hospital, Fudan University, No. 180 Fenglin road, Shanghai, 200032, China
| | - Wenjuan Liu
- Department of Stomatology, Xuhui Central Hospital, 996 Huaihaizhong Road, Shanghai, 200031, P. R. China
| | - Ruixue Li
- Department of Stomatology, Zhongshan hospital, Fudan University, No. 180 Fenglin road, Shanghai, 200032, China
| | - Xingwen Wu
- Department of Stomatology, Zhongshan hospital, Fudan University, No. 180 Fenglin road, Shanghai, 200032, China
| | - Fei Yang
- Department of Stomatology, Zhongshan hospital, Fudan University, No. 180 Fenglin road, Shanghai, 200032, China
| | - Liang Song
- Department of Stomatology, Zhongshan hospital, Fudan University, No. 180 Fenglin road, Shanghai, 200032, China
| | - Ni Li
- Department of Stomatology, Zhongshan hospital, Fudan University, No. 180 Fenglin road, Shanghai, 200032, China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Youcheng Yu
- Department of Stomatology, Zhongshan hospital, Fudan University, No. 180 Fenglin road, Shanghai, 200032, China
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Li B, Liu F, Ye J, Cai X, Qian R, Zhang K, Zheng Y, Wu S, Han Y. Regulation of Macrophage Polarization Through Periodic Photo-Thermal Treatment to Facilitate Osteogenesis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202691. [PMID: 35986434 DOI: 10.1002/smll.202202691] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/15/2022] [Indexed: 06/15/2023]
Abstract
The richened reactive oxygen species (ROS) and their derived excessive inflammation at bone injured sites hinder osteogenesis of endosseous Ti-based implants. Herein, anti-oxidized polydopamine (PDA) is deposited on hydrothermal growth formed hydroxyapatite (HA) nanorods on Ti to form a core-shell structural nanorod-like array with HA as a core and PDA as an amorphous shell (PDA@HA), showing not only ROS scavenging ability but also near-infrared (NIR) light derived photo-thermal effects. PDA@HA suppresses inflammation based on its ROS scavenging ability to a certain extent, while periodic photo-thermal treatment (PTT) at a mild temperature (41 ± 1 °C) further accelerates the transition of the macrophages (MΦs) adhered to PDA@HA from the pro-inflammatory (M1) phenotype to the anti-inflammatory (M2) phenotype in vitro and in vivo. Transcriptomic analysis reveals that the activation of the PI3K-Akt1 signaling pathway is responsible for the periodic PTT induced acceleration of the M1-to-M2 transition of MΦs. Acting on mesenchymal stem cells (MSCs) with paracrine cytokines of M2 macrophages, PDA@HA with mild PTT greatly promote the osteogenetic functions of MSCs and thus osteogenesis. This work paves a way of employing mildly periodic PTT to induce a favorable immunomodulatory microenvironment for osteogenesis and provides insights into its underlying immunomodulation mechanism.
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Affiliation(s)
- Bo Li
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Fuli Liu
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jing Ye
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Xinmei Cai
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Runliu Qian
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Kaiwang Zhang
- N0.16 Institute of No.9 Academe of China Aerospace Technology Corporation, Xi'an, 710061, China
| | - Yufeng Zheng
- School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Shuilin Wu
- School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Yong Han
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710100, China
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Chen D, Chen G, Zhang X, Chen J, Li J, Kang K, He W, Kong Y, Wu L, Su B, Zhao K, Si D, Wang X. Fabrication And In Vitro Evaluation Of 3D Printed Porous Silicate Substituted Calcium Phosphate Scaffolds For Bone Tissue Engineering. Biotechnol Bioeng 2022; 119:3297-3310. [PMID: 35923072 DOI: 10.1002/bit.28202] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 07/07/2022] [Accepted: 07/30/2022] [Indexed: 11/10/2022]
Abstract
Silicate-substituted calcium phosphate (Si-CaP) ceramics, alternative materials for autogenous bone grafting, exhibit excellent osteoinductivity, osteoconductivity, biocompatibility and biodegradability; thus, they have been widely used for treating bone defects. However, the limited control over the spatial structure and weak mechanical properties of conventional Si-CaP ceramics hinder their wide application. Here, we used digital light processing (DLP) printing technology to fabricate a novel porous 3D printed Si-CaP scaffold to enhance the scaffold properties. Scanning electron microscopy, compression tests, and computational fluid dynamics simulations of the 3D printed Si-CaP scaffolds revealed a uniform spatial structure, appropriate mechanical properties, and effective interior permeability. Furthermore, compared to Si-CaP groups, 3D printed Si-CaP groups exhibited sustained release of silicon (Si), calcium (Ca) and phosphorus (P) ions. Furthermore, 3D printed Si-CaP groups had more comprehensive and persistent osteogenic effects due to increased osteogenic factor expression and calcium deposition. Our results show that the 3D printed Si-CaP scaffold successfully improved bone marrow mesenchymal stem cell (BMSCs) adhesion, proliferation and osteogenic differentiation and possessed a distinct apatite mineralization ability. Overall, with the help of DLP printing technology, Si-CaP ceramic materials facilitate the fabrication of ideal bone tissue engineering scaffolds with essential elements, providing a promising approach for bone regeneration. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Dechun Chen
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Guanghua Chen
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Xin Zhang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Jingtao Chen
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Jinmeng Li
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Kunlong Kang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Weitao He
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Yuanhang Kong
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Leilei Wu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Bo Su
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Kui Zhao
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Daiwei Si
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
| | - Xintao Wang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Xuefu Road 246, Harbin, Heilongjiang, 150081, P. R. China
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40
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You J, Zhang Y, Zhou Y. Strontium Functionalized in Biomaterials for Bone Tissue Engineering: A Prominent Role in Osteoimmunomodulation. Front Bioeng Biotechnol 2022; 10:928799. [PMID: 35875505 PMCID: PMC9298737 DOI: 10.3389/fbioe.2022.928799] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/13/2022] [Indexed: 12/24/2022] Open
Abstract
With the development of bone tissue engineering bio-scaffold materials by adding metallic ions to improve bone healing have been extensively explored in the past decades. Strontium a non-radioactive element, as an essential osteophilic trace element for the human body, has received widespread attention in the medical field due to its superior biological properties of inhibiting bone resorption and promoting osteogenesis. As the concept of osteoimmunology developed, the design of orthopedic biomaterials has gradually shifted from “immune-friendly” to “immunomodulatory” with the aim of promoting bone healing by modulating the immune microenvironment through implanted biomaterials. The process of bone healing can be regarded as an immune-induced procedure in which immune cells can target the effector cells such as macrophages, neutrophils, osteocytes, and osteoprogenitor cells through paracrine mechanisms, affecting pathological alveolar bone resorption and physiological bone regeneration. As a kind of crucial immune cell, macrophages play a critical role in the early period of wound repair and host defense after biomaterial implantation. Despite Sr-doped biomaterials being increasingly investigated, how extracellular Sr2+ guides the organism toward favorable osteogenesis by modulating macrophages in the bone tissue microenvironment has rarely been studied. This review focuses on recent knowledge that the trace element Sr regulates bone regeneration mechanisms through the regulation of macrophage polarization, which is significant for the future development of Sr-doped bone repair materials. We will also summarize the primary mechanism of Sr2+ in bone, including calcium-sensing receptor (CaSR) and osteogenesis-related signaling pathways.
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Affiliation(s)
- Jiaqian You
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Yidi Zhang
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Yanmin Zhou
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
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41
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Lackington WA, Gehweiler D, Zhao E, Zderic I, Nehrbass D, Zeiter S, González-Vázquez A, O'Brien FJ, Stoddart MJ, Thompson K. Interleukin-1 receptor antagonist enhances the therapeutic efficacy of a low dose of rhBMP-2 in a weight-bearing rat femoral defect model. Acta Biomater 2022; 149:189-197. [PMID: 35840106 DOI: 10.1016/j.actbio.2022.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/01/2022] [Accepted: 07/06/2022] [Indexed: 11/01/2022]
Abstract
In the clinical treatment of fractures, rhBMP-2 administration is associated with a well-established profile of side-effects, including osteolysis and ectopic bone formation, which are driven by pro-inflammatory processes triggered by the use of high doses. Immunomodulatory strategies could minimize the incidence of side-effects by enabling the use of lower, and safer, rhBMP-2 doses. This study investigated whether interleukin-1 receptor antagonist (IL-1Ra) can enhance the therapeutic efficacy of a low dose of rhBMP-2 in a weight-bearing femoral fracture healing model. Exogenous IL-1Ra, in combination with rhBMP-2, was delivered using a collagen-hydroxyapatite scaffold (CHA) to attenuate IL-1β produced in response to fracture. Femoral defects were treated with CHA scaffolds alone, or loaded with IL-1Ra (2.5 µg), rhBMP-2 (1 µg), IL-1Ra (2.5 µg) in combination with rhBMP-2 (1 µg). Bone healing was assessed over 14 weeks in comparison to control groups, empty defect, and a higher dose of rhBMP-2 (5 µg), which were recently demonstrated to lead to non-union, and successful bridging of the defect, respectively. The combination of IL-1Ra and rhBMP-2 led to significantly faster early bone formation, at both week 4 and 6, compared to a low dose of rhBMP-2 alone. By 14 weeks, the combination of IL-1Ra and a rhBMP-2 promoted full bridging of femurs, which were 3-fold more mechanically reliable compared to the femurs treated with a low dose of rhBMP-2 alone. Taken together, this study demonstrates that IL-1Ra can significantly enhance femoral bone healing when used in combination with a low dose of rhBMP-2. STATEMENT OF SIGNIFICANCE: Enabling the use of lower and safer doses of rhBMP-2, a potent inducer of bone formation, is of clinical relevance in orthopaedic medicine. In this study, the immunomodulatory interleukin-1 receptor antagonist (IL-1Ra) was investigated for its capacity to enhance the therapeutic efficacy of rhBMP-2 when used at lower doses in a weight-bearing femoral fracture healing model. The combination of IL-1Ra and rhBMP-2 led to significantly faster early bone formation, and resulted in more mechanically reliable healed femurs, compared to a low dose of rhBMP-2 alone. This demonstrates for the first time in a rat long bone healing model that IL-1Ra can significantly enhance bone healing when used in combination with a low dose of rhBMP-2.
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Affiliation(s)
- William A Lackington
- AO Research Institute Davos, AO Foundation, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland; Present address: Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biointerfaces, St. Gallen, Switzerland
| | - Dominic Gehweiler
- AO Research Institute Davos, AO Foundation, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland
| | - Ensi Zhao
- AO Research Institute Davos, AO Foundation, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland
| | - Ivan Zderic
- AO Research Institute Davos, AO Foundation, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland
| | - Dirk Nehrbass
- AO Research Institute Davos, AO Foundation, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland
| | - Stephan Zeiter
- AO Research Institute Davos, AO Foundation, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland
| | - Arlyng González-Vázquez
- Tissue Engineering Research Group, Dept. of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, 123 St Stephen's Green, Dublin, Ireland; AMBER Centre, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Fergal J O'Brien
- Tissue Engineering Research Group, Dept. of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, 123 St Stephen's Green, Dublin, Ireland; AMBER Centre, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Martin J Stoddart
- AO Research Institute Davos, AO Foundation, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland
| | - Keith Thompson
- AO Research Institute Davos, AO Foundation, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland.
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42
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Sharifi M, Kheradmandi R, Salehi M, Alizadeh M, Ten Hagen TLM, Falahati M. Criteria, Challenges, and Opportunities for Acellularized Allogeneic/Xenogeneic Bone Grafts in Bone Repairing. ACS Biomater Sci Eng 2022; 8:3199-3219. [PMID: 35816626 DOI: 10.1021/acsbiomaterials.2c00194] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
As bone grafts become more commonly needed by patients and as donors become scarcer, acellularized bone grafts (ABGs) are becoming more popular for restorative purposes. While autogeneic grafts are reliable as a gold standard, allogeneic and xenogeneic ABGs have been shown to be of particular interest due to the limited availability of autogeneic resources and reduced patient well-being in long-term surgeries. Because of the complete similarity of their structures with native bone, excellent mechanical properties, high biocompatibility, and similarities of biological behaviors (osteoinductive and osteoconductive) with local bones, successful outcomes of allogeneic and xenogeneic ABGs in both in vitro and in vivo research have raised hopes of repairing patients' bone injuries in clinical applications. However, clinical trials have been delayed due to a lack of standardized protocols pertaining to acellularization, cell seeding, maintenance, and diversity of ABG evaluation criteria. This study sought to uncover these factors by exploring the bone structures, ossification properties of ABGs, sources, benefits, and challenges of acellularization approaches (physical, chemical, and enzymatic), cell loading, and type of cells used and effects of each of the above items on the regenerative technologies. To gain a perspective on the repair and commercialization of products before implementing new research activities, this study describes the differences between ABGs created by various techniques and methods applied to them. With a comprehensive understanding of ABG behavior, future research focused on treating bone defects could provide a better way to combine the treatment approaches needed to treat bone defects.
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Affiliation(s)
- Majid Sharifi
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran.,Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran
| | - Rasoul Kheradmandi
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran.,Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran.,Tissue Engineering and Stem Cells Research Center, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran
| | - Morteza Alizadeh
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran
| | - Timo L M Ten Hagen
- Laboratory Experimental Oncology, Department of Pathology, Erasmus MC, 3015GD Rotterdam, The Netherlands
| | - Mojtaba Falahati
- Laboratory Experimental Oncology, Department of Pathology, Erasmus MC, 3015GD Rotterdam, The Netherlands
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43
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Su N, Villicana C, Yang F. Immunomodulatory strategies for bone regeneration: A review from the perspective of disease types. Biomaterials 2022; 286:121604. [PMID: 35667249 PMCID: PMC9881498 DOI: 10.1016/j.biomaterials.2022.121604] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/19/2022] [Accepted: 05/24/2022] [Indexed: 02/08/2023]
Abstract
Tissue engineering strategies for treating bone loss to date have largely focused on targeting stem cells or vascularization. Immune cells, including macrophages and T cells, can also indirectly enhance bone healing via cytokine secretion to interact with other bone niche cells. Bone niche cues and local immune environment vary depending on anatomical location, size of defects and disease types. As such, it is critical to evaluate the role of the immune system in the context of specific bone niche and different disease types. This review focuses on immunomodulation research for bone applications using biomaterials and cell-based strategies, with a unique perspective from different disease types. We first reviewed applications for prolonging orthopaedic implant lifetime and enhancing fracture healing, two clinical challenges where immunomodulatory strategies were initially developed for orthopedic applications. We then reviewed recent research progress in harnessing immunomodulatory strategies for regenerating critical-sized, long bone or cranial bone defects, and treating osteolytic bone diseases. Remaining gaps in knowledge, future directions and opportunities were also discussed.
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Affiliation(s)
- Ni Su
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Cassandra Villicana
- Department of Bioengineering, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Fan Yang
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, 94305, USA.,Department of Bioengineering, Stanford University School of Medicine, Stanford, CA, 94305, USA.,: Corresponding Author Fan Yang, Ph D, Department of Orthopaedic Surgery and Bioengineering, Stanford University School of Medicine, 240 Pasteur Dr, Palo Alto, CA 94304, Biomedical Innovation Building, 1st floor, Room 1200, , Phone: (650) 646-8558
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44
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Kim YH, Oreffo ROC, Dawson JI. From hurdle to springboard: The macrophage as target in biomaterial-based bone regeneration strategies. Bone 2022; 159:116389. [PMID: 35301163 DOI: 10.1016/j.bone.2022.116389] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 03/03/2022] [Accepted: 03/10/2022] [Indexed: 12/16/2022]
Abstract
The past decade has seen a growing appreciation for the role of the innate immune response in mediating repair and biomaterial directed tissue regeneration. The long-held view of the host immune/inflammatory response as an obstacle limiting stem cell regenerative activity, has given way to a fresh appreciation of the pivotal role the macrophage plays in orchestrating the resolution of inflammation and launching the process of remodelling and repair. In the context of bone, work over the past decade has established an essential coordinating role for macrophages in supporting bone repair and sustaining biomaterial driven osteogenesis. In this review evidence for the role of the macrophage in bone regeneration and repair is surveyed before discussing recent biomaterial and drug-delivery based approaches that target macrophage modulation with the goal of accelerating and enhancing bone tissue regeneration.
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Affiliation(s)
- Yang-Hee Kim
- Bone and Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK
| | - Richard O C Oreffo
- Bone and Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK
| | - Jonathan I Dawson
- Bone and Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK.
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45
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Qi D, Su J, Li S, Zhu H, Cheng L, Hua S, Yuan X, Jiang J, Shu Z, Shi Y, Xiao J. 3D printed magnesium-doped β-TCP gyroid scaffold with osteogenesis, angiogenesis, immunomodulation properties and bone regeneration capability in vivo. BIOMATERIALS ADVANCES 2022; 136:212759. [PMID: 35929304 DOI: 10.1016/j.bioadv.2022.212759] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/25/2022] [Accepted: 03/10/2022] [Indexed: 06/15/2023]
Abstract
Bioceramics have been used in orthopedic surgery for several years. Magnesium (Mg) is an essential element in bone tissue and plays an important role in bone metabolism. Mg-doped bioceramics has attracted the attention of researchers recently. However, the optimal doping amount of Mg in β-TCP and the immunomodulatory property of Mg-doped β-TCP (Mg-TCP) have not been determined yet. In this study, β-TCP scaffolds doped with different contents of magnesium oxide (0 wt%, 1 wt%, 3 wt%, and 5 wt%) with gyroid structure were printed by digital light processing (DLP) method, and the physicochemical and biological functions were then investigated. Mg-doping improved the physicochemical properties of the β-TCP scaffolds. In vitro experiments confirmed that the doping of Mg in β-TCP scaffolds promoted the osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) and angiogenic differentiation of endothelial progenitor cells (EPCs), where the 5Mg-TCP has the optimal properties when using the "one cell type" method. It was also found that all Mg-TCP facilitated the polarization of RAW264.7 cells to the M2 phenotype, especially the 3Mg-TCP. However, 3Mg-TCP displayed the optimal osteogenic and angiogenic potential when using a "multiple cell type" method, which referred to culturing the BMSCs or EPCs in the macrophage-conditioned medium. Finally, the in vivo experiments were conducted and the results confirmed that the 3Mg-TCP scaffolds possessed the satisfying bone defect repair capability both after 6 and 12 weeks of implantation. This study suggests that 3Mg-TCP scaffolds provide the optimal biological performance and thus have the potential for clinical translation.
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Affiliation(s)
- Dahu Qi
- Department of Orthopedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Jin Su
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Song Li
- Department of Orthopedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Hao Zhu
- Department of Orthopedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China.
| | - Lijin Cheng
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Shuaibin Hua
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xi Yuan
- Department of Orthopedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Jiawei Jiang
- Department of Orthopedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Zixing Shu
- Department of Orthopedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Yusheng Shi
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Jun Xiao
- Department of Orthopedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China.
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Yang Y, Wang L, Zhou Y, He Y, Lin S, Zeng Y, Zhou Y, Li W, He Z, Zhao Q, Chen L, Li Z, Wang W, Zhang ZY. Antioxidant-enriched autologous biogel promoted diabetic wound healing by remodeling inherent posttraumatic inflammatory patterning and restoring compromised microenvironment homeostasis. Regen Biomater 2022; 9:rbac023. [PMID: 35529048 PMCID: PMC9071060 DOI: 10.1093/rb/rbac023] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/26/2022] [Accepted: 04/10/2022] [Indexed: 11/14/2022] Open
Abstract
Abstract
Successful wound healing depends on the reconstruction of proper tissue homeostasis, particularly in the posttraumatic inflammatory tissue microenvironment. Diabetes jeopardizes tissues’ immune homeostasis in cutaneous wounds, causing persistent chronic inflammation and cytokine dysfunction. Previously, we developed an autologous regeneration factor (ARF) technology to extract the cytokine composite from autologous tissue to restore immune homeostasis and promote wound healing. However, treatment efficacy was significantly compromised in diabetic conditions. Therefore, we proposed that a combination of melatonin and ARF, which is beneficial for proper immune homeostasis reconstruction, could be an effective treatment for diabetic wounds. Our research showed that the utilization of melatonin-mediated ARF biogel (AM gel) promoted diabetic wound regeneration at a more rapid healing rate. RNA-seq analysis showed that AM gel treatment could restore more favorable immune tissue homeostasis with unique inflammatory patterning as a result of the diminished intensity of acute and chronic inflammation. Currently, AM gel could be a novel and promising therapeutic strategy for diabetic wounds in clinical practice through favorable immune homeostatic reconstructions in the tissue microenvironment and proper posttraumatic inflammation patterning.
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Affiliation(s)
- Yixi Yang
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
- Department of Orthopaedic Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
| | - Le Wang
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
- Department of Orthopaedic Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
- Medical Technology and Related Equipment Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
| | - Yonglin Zhou
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
| | - Yijun He
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
| | - Shaozhang Lin
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
| | - Yuwei Zeng
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
| | - Yunhe Zhou
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
| | - Wei Li
- Hand and Foot Surgery & Plastic Surgery, Affiliated Shunde Hospital of Guangzhou Medical University, Shunde District, Foshan, P. R. China
| | - Zaopeng He
- Hand and Foot Surgery & Plastic Surgery, Affiliated Shunde Hospital of Guangzhou Medical University, Shunde District, Foshan, P. R. China
| | - Qi Zhao
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
| | - Lihao Chen
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
| | - Zijie Li
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
| | - Wenhao Wang
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
| | - Zhi-Yong Zhang
- Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University, Guangdong Province Engineering Research Center for Biomedical Engineering, State Key Laboratory of Respiratory Disease, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, P. R. China
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Wu S, Ma J, Liu J, Liu C, Ni S, Dai T, Wang Y, Weng Y, Zhao H, Zhou D, Zhao X. Immunomodulation of Telmisartan-Loaded PCL/PVP Scaffolds on Macrophages Promotes Endogenous Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2022; 14:15942-15955. [PMID: 35353482 DOI: 10.1021/acsami.1c24748] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Biomaterial-immune system interactions play an important role in postimplantation osseointegration to retain the functionality of healthy and intact bones. Therefore, appropriate osteoimmunomodulation of implants has been considered and validated as an efficient strategy to alleviate inflammation and enhance new bone formation. Here, we fabricated a nanostructured PCL/PVP (polycaprolactone/polyvinylpyrrolidone) electrospinning scaffold for cell adhesion, tissue ingrowth, and bone defect padding. In addition, telmisartan, an angiotensin 2 receptor blocker with distinct immune bioactivity, was doped into PCL-/PVP-electrospun scaffolds at different proportions [1% (TPP-1), 5% (TPP-5), and 10% (TPP-10)] to investigate its immunomodulatory effects and osteoinductivity/conductivity. Telmisartan-loaded scaffolds displayed in vitro anti-inflammatory bioactivity on lipopolysaccharide-induced M1 macrophages by polarizing them to an M2-like phenotype and exhibited pro-osteogenic properties on bone marrow-derived mesenchymal stem cells (BMSCs). Histological analysis and micro-CT results of a rat skull defect model also showed that the telmisartan-loaded scaffolds induced a higher M2/M1 ratio, less inflammatory infiltration, and better bone regenerative patterns. Furthermore, activation of the BMP2 (bone morphogenetic protein-2)-Smad signaling pathway was found to be dominant in telmisartan-loaded scaffold-mediated macrophage-BMSC interactions. These findings indicate that telmisartan incorporation with PCL/PVP nanofibrous scaffolds is a potential therapeutic strategy for promoting bone healing by modulating M1 macrophages to a more M2 phenotype at early stages of postimplantation.
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Affiliation(s)
- Siyu Wu
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213164, China
- Dalian Medical University, Dalian 116044, China
| | - Jiayi Ma
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213164, China
- Dalian Medical University, Dalian 116044, China
| | - Jun Liu
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213164, China
- Dalian Medical University, Dalian 116044, China
| | - Chun Liu
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213164, China
| | - Su Ni
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213164, China
| | - Ting Dai
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213164, China
| | - Yan Wang
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213164, China
| | - Yiping Weng
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213164, China
| | - Hongbin Zhao
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213164, China
| | - Dong Zhou
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213164, China
| | - Xiubo Zhao
- School of Pharmacy, Changzhou University, Changzhou 213164, China
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, U.K
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Wang P, Meng X, Wang R, Yang W, Yang L, Wang J, Wang DA, Fan C. Biomaterial Scaffolds Made of Chemically Cross-Linked Gelatin Microsphere Aggregates (C-GMSs) Promote Vascularized Bone Regeneration. Adv Healthc Mater 2022; 11:e2102818. [PMID: 35306762 DOI: 10.1002/adhm.202102818] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/09/2022] [Indexed: 12/14/2022]
Abstract
Various scaffolding systems have been attempted to facilitate vascularization in tissue engineering by optimizing biophysical properties (e.g., vascular-like structures, porous architectures, surface topographies) or loading biochemical factors (e.g., growth factors, hormones). However, vascularization during ossification remains an unmet challenge that hampers the repair of large bone defects. In this study, reconstructing vascularized bones in situ against critical-sized bone defects is endeavored using newly developed scaffolds made of chemically cross-linked gelatin microsphere aggregates (C-GMSs). The rationale of this design lies in the creation and optimization of cell-material interfaces to enhance focal adhesion, proliferation, and function of anchorage-dependent functional cells. In vitro trials are carried out by coculturing human aortic endothelial cells (HAECs) and murine osteoblast precursor cells (MC3T3-E1) within C-GMS scaffolds, in which endothelialized bone-like constructs are yielded. Angiogenesis and osteogenesis induced by C-GMSs scaffold are further confirmed via subcutaneous-embedding trials in nude mice. In situ trials for the repair of critical-sized femoral defects are subsequently performed in rats. The acellular C-GMSs with interconnected macropores, exhibit the capability to recruit the endogenous cells (e.g., bone-forming cells, vascular forming cells, immunocytes) and then promote vascularized bone regeneration as well as integration with host bone.
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Affiliation(s)
- Peiyan Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong, 266021, P. R. China
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Xinyue Meng
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong, 266021, P. R. China
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Runze Wang
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Wei Yang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong, 266021, P. R. China
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Lanting Yang
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Jianxun Wang
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Changjiang Fan
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong, 266021, P. R. China
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
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Zhang F, King MW. Immunomodulation Strategies for the Successful Regeneration of a Tissue-Engineered Vascular Graft. Adv Healthc Mater 2022; 11:e2200045. [PMID: 35286778 DOI: 10.1002/adhm.202200045] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/18/2022] [Indexed: 01/02/2023]
Abstract
Cardiovascular disease leads to the highest morbidity worldwide. There is an urgent need to solve the lack of a viable arterial graft for patients requiring coronary artery bypass surgery. The current gold standard is to use the patient's own blood vessel, such as a saphenous vein graft. However, some patients do not have appropriate vessels to use because of systemic disease or secondary surgery. On the other hand, there is no commercially available synthetic vascular graft available on the market for small diameter (<6 mm) blood vessels like coronary, carotid, and peripheral popliteal arteries. Tissue-engineered vascular grafts (TEVGs) are studied in recent decades as a promising alternative to synthetic arterial prostheses. Yet only a few studies have proceeded to a clinical trial. Recent studies have uncovered that the host immune response can be directed toward increasing the success of a TEVG by shedding light on ways to modulate the macrophage response and improve the tissue regeneration outcome. In this review, the basic concepts of vascular tissue engineering and immunoengineering are considered. The state-of-art of TEVGs is summarized and the role of macrophages in TEVG regeneration is analyzed. Current immunomodulatory strategies based on biomaterials are also discussed.
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Affiliation(s)
- Fan Zhang
- Wilson College of Textiles North Carolina State University Raleigh NC 27606 USA
| | - Martin W. King
- Wilson College of Textiles North Carolina State University Raleigh NC 27606 USA
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[Experimental study on the construction of telmisartan/collagen/polycaprolactone nerve conduit and its repair effect on rat sciatic nerve defect]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2022; 36:352-361. [PMID: 35293178 PMCID: PMC8923921 DOI: 10.7507/1002-1892.202108142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVE To construction the telmisartan/collagen/polycaprolactone (PCL) nerve conduit and assess its effect on repairing sciatic nerve defect in rats. METHODS The 60% collagen/hexafluoroisopropanol (HFIP) solution and 40% PCL/HFIP solution were prepared and mixed (collagen/PCL solution). Then the 0, 5, 10, and 20 mg of telmisartan were mixed with the 10 mL collagen/PCL solution, respectively. Telmisartan/collagen/PCL nerve conduits were fabricated via high voltage electrospinning technology. The structure of nerve conduit before and after crosslinking was observed by using scanning electron microscope (SEM). The drug release efficiency was detected by in vitro sustained release method. RAW264.7 cells were cultured with lipopolysaccharide to induce inflammation, and then co-cultured with nerve conduits loaded with different concentrations of telmisartan for 24 hours. The mRNA expressions of inducible nitric oxide synthase (iNOS) and Arginase 1 (Arg-1) were detected by using real-time fluorescence quantitative PCR. Forty adult Wistar rats were randomly divided into 4 groups ( n=10). After preparing 15-mm-long sciatic nerve defect, the defect was repaired by cross-linked nerve conduits loaded with 0, 5, 10, and 20 mg telmisartan in groups A, B, C, and D, respectively. After operation, the general condition of rats was observed after operation; the sciatic function index (SFI) was tested; the bridging between the nerve conduit and sciatic nerve, and the integrity of nerve conduit were observed; the tissue growth in nerve conduit and material degradation were observed by HE staining; the expressions of CD86 (M1 macrophage marker), CD206 (M2 macrophage marker), myelin basic protein (MBP), and myelin protein 0 (P0) in new tissues were also observed by immunohistochemical staining; the expressions of neurofilament 200 (NF-200) and S-100β in new tissues were assessed by immunofluorescence staining. RESULTS The general observation showed that the inner diameter of the nerve conduit was 1.8 mm and the outer diameter was 2.0 mm. After cross-linking by genipin, the nanofiber became thicker and denser. The drug release test showed that the telmisartan loaded nerve conduit could be released gradually. With the increase of telmisartan content in nerve conduit, the iNOS mRNA expression decreased and the Arg-1 mRNA expression increased; and the differences between 20 mg group and other groups were significant ( P<0.05). In vivo experiment showed that all animals in each group survived until the completion of the experiment. The SFI was significantly higher in groups C and D than in groups A and B at different time points ( P<0.05) and in group D than in group C at 6 months after operation ( P<0.05). HE staining showed that there were significantly more new tissues in the middle of the nerve conduit in group D after operation than in other groups. Immunohistochemical staining showed that CD86 and CD206 stainings were positive in each group at 1 month after operation, among which group D had the lowest positive rate of CD86 and the highest positive rate of CD206, and there were significant differences in the positive rate of CD206 between group D and groups A, B, and C ( P<0.05); the MBP and P0 stainings were positive in groups C and D at 6 months, and the positive rate in group D was significantly higher than that in group C ( P<0.05). Immunofluorescence staining showed that the NF-200 and S-100β expressions in group D were significantly higher than those in other groups. CONCLUSION Telmisartan/collagen/PLC nerve conduit can promote the sciatic nerve defect repair in rats through promoting the polarization of M1 macrophages to M2 macrophages, and the nerve conduit loaded with20 mg telmisartan has the most significant effect.
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