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Zhu F, Wang S, Zhu X, Pang C, Cui P, Yang F, Li R, Zhan Q, Xin H. Potential effects of biomaterials on macrophage function and their signalling pathways. Biomater Sci 2023; 11:6977-7002. [PMID: 37695360 DOI: 10.1039/d3bm01213a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
The use of biomaterials in biomedicine and healthcare has increased in recent years. Macrophages are the primary immune cells that induce inflammation and tissue repair after implantation of biomaterials. Given that macrophages exhibit high heterogeneity and plasticity, the influence of biomaterials on macrophage phenotype should be considered a crucial evaluation criterion during the development of novel biomaterials. This review provides a comprehensive summary of the physicochemical, biological, and dynamic characteristics of biomaterials that drive the regulation of immune responses in macrophages. The mechanisms involved in the interaction between macrophages and biomaterials, including endocytosis, receptors, signalling pathways, integrins, inflammasomes and long non-coding RNAs, are summarised in this review. In addition, research prospects of the interaction between macrophages and biomaterials are discussed. An in-depth understanding of mechanisms underlying the spatiotemporal changes in macrophage phenotype induced by biomaterials and their impact on macrophage polarization can facilitate the identification and development of novel biomaterials with superior performance. These biomaterials may be used for tissue repair and regeneration, vaccine or drug delivery and immunotherapy.
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Affiliation(s)
- Fujun Zhu
- Department of Burns and Plastic Surgery, the No. 924th Hospital of the Joint Logistic Support Force of the Chinese PLA, Guilin, Guangxi 541002, People's Republic of China.
| | - Shaolian Wang
- Central Sterile Supply Department, the No. 924th Hospital of the Joint Logistic Support Force of the Chinese PLA, Guilin, Guangxi 541002, People's Republic of China
| | - Xianglian Zhu
- Outpatient Department, the No. 924th Hospital of the Joint Logistic Support Force of the Chinese PLA, Guilin, Guangxi 541002, People's Republic of China
| | - Caixiang Pang
- Department of Emergency Medicine, the No. 924th Hospital of the Joint Logistic Support Force of the Chinese PLA, Guilin, Guangxi 541002, People's Republic of China
| | - Pei Cui
- Animal Laboratory, the No. 924th Hospital of the Joint Logistic Support Force of the Chinese PLA, Guilin, Guangxi 541002, People's Republic of China
| | - Fuwang Yang
- Department of Burns and Plastic Surgery, the No. 924th Hospital of the Joint Logistic Support Force of the Chinese PLA, Guilin, Guangxi 541002, People's Republic of China.
| | - Rongsheng Li
- Animal Laboratory, the No. 924th Hospital of the Joint Logistic Support Force of the Chinese PLA, Guilin, Guangxi 541002, People's Republic of China
| | - Qiu Zhan
- Animal Laboratory, the No. 924th Hospital of the Joint Logistic Support Force of the Chinese PLA, Guilin, Guangxi 541002, People's Republic of China
| | - Haiming Xin
- Department of Burns and Plastic Surgery, the No. 924th Hospital of the Joint Logistic Support Force of the Chinese PLA, Guilin, Guangxi 541002, People's Republic of China.
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Guo Y, Ao Y, Ye C, Xia R, Mi J, Shan Z, Shi M, Xie L, Chen Z. Nanotopographic micro-nano forces finely tune the conformation of macrophage mechanosensitive membrane protein integrin β 2 to manipulate inflammatory responses. NANO RESEARCH 2023; 16:1-15. [PMID: 37359074 PMCID: PMC9986042 DOI: 10.1007/s12274-023-5550-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 06/28/2023]
Abstract
Finely tuning mechanosensitive membrane proteins holds great potential in precisely controlling inflammatory responses. In addition to macroscopic force, mechanosensitive membrane proteins are reported to be sensitive to micro-nano forces. Integrin β2, for example, might undergo a piconewton scale stretching force in the activation state. High-aspect-ratio nanotopographic structures were found to generate nN-scale biomechanical force. Together with the advantages of uniform and precisely tunable structural parameters, it is fascinating to develop low-aspect-ratio nanotopographic structures to generate micro-nano forces for finely modulating their conformations and the subsequent mechanoimmiune responses. In this study, low-aspect-ratio nanotopographic structures were developed to finely manipulate the conformation of integrin β2. The direct interaction of forces and the model molecule integrin αXβ2 was first performed. It was demonstrated that pressing force could successfully induce conformational compression and deactivation of integrin αXβ2, and approximately 270 to 720 pN may be required to inhibit its conformational extension and activation. Three low-aspect-ratio nanotopographic surfaces (nanohemispheres, nanorods, and nanoholes) with various structural parameters were specially designed to generate the micro-nano forces. It was found that the nanorods and nanohemispheres surfaces induce greater contact pressure at the contact interface between macrophages and nanotopographic structures, particularly after cell adhesion. These higher contact pressures successfully inhibited the conformational extension and activation of integrin β2, suppressing focal adhesion activity and the downstream PI3K-Akt signaling pathway, reducing NF-κB signaling and macrophage inflammatory responses. Our findings suggest that nanotopographic structures can be used to finely tune mechanosensitive membrane protein conformation changes, providing an effective strategy for precisely modulating inflammatory responses. Electronic Supplementary Material Supplementary material (primer sequences of target genes in RT-qPCR assay; the results of solvent accessible surface area during equilibrium simulation, the ligplut results of hydrogen bonds, and hydrophobic interactions; the density of different nanotopographic structures; interaction analysis of the downregulated leading genes of "focal adhesion" signaling pathway in nanohemispheres and nanorods groups; and the GSEA results of "Rap 1 signaling pathway" and "regulation of actin cytoskeleton" in different groups) is available in the online version of this article at 10.1007/s12274-023-5550-0.
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Affiliation(s)
- Yuanlong Guo
- Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055 China
| | - Yong Ao
- Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055 China
| | - Chen Ye
- Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055 China
| | - Ruidi Xia
- Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055 China
| | - Jiaomei Mi
- Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055 China
| | - Zhengjie Shan
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080 China
| | - Mengru Shi
- Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055 China
| | - Lv Xie
- Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055 China
| | - Zetao Chen
- Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055 China
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Kong N, Ma H, Pu Z, Wan F, Li D, Huang L, Lian J, Huang X, Ling S, Yu H, Yao Y. De Novo Design and Synthesis of Polypeptide Immunomodulators for Resetting Macrophage Polarization. BIODESIGN RESEARCH 2023; 5:0006. [PMID: 37849457 PMCID: PMC10521685 DOI: 10.34133/bdr.0006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 12/25/2022] [Indexed: 10/19/2023] Open
Abstract
Modulating the extracellular matrix microenvironment is critical for achieving the desired macrophage phenotype in immune investigations or tumor therapy. Combining de novo protein design and biosynthesis techniques, herein, we designed a biomimetic polypeptide self-assembled nano-immunomodulator to trigger the activation of a specific macrophage phenotype. It was intended to be made up of (GGSGGPGGGPASAAANSASRATSNSP)n, the RGD motif from collagen, and the IKVAV motif from laminin. The combination of these domains allows the biomimetic polypeptide to assemble into extracellular matrix-like nanofibrils, creating an extracellular matrix-like milieu for macrophages. Furthermore, changing the concentration further provides a facile route to fine-tune macrophage polarization, which enhances antitumor immune responses by precisely resetting tumor-associated macrophage immune responses into an M1-like phenotype, which is generally considered to be tumor-killing macrophages, primarily antitumor, and immune-promoting. Unlike metal or synthetic polymer-based nanoparticles, this polypeptide-based nanomaterial exhibits excellent biocompatibility, high efficacy, and precise tunability in immunomodulatory effectiveness. These encouraging findings motivate us to continue our research into cancer immunotherapy applications in the future.
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Affiliation(s)
- Na Kong
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China
| | - Hongru Ma
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Zhongji Pu
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Fengju Wan
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China
| | - Dongfang Li
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
| | - Lei Huang
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Jiazhang Lian
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Xingxu Huang
- Zhejiang Lab, Hangzhou, Zhejiang 311121, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Shengjie Ling
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China
- Shanghai Clinical Research and Trial Center, Shanghai 201210, China
| | - Haoran Yu
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Yuan Yao
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
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Fu Z, Hou Y, Haugen HJ, Chen X, Tang K, Fang L, Liu Y, Zhang S, Ma Q, Chen L. TiO 2 nanostructured implant surface-mediated M2c polarization of inflammatory monocyte requiring intact cytoskeleton rearrangement. J Nanobiotechnology 2023; 21:1. [PMID: 36593461 PMCID: PMC9809010 DOI: 10.1186/s12951-022-01751-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 12/21/2022] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Microgravity directly disturbs the reorganization of the cytoskeleton, exerting profound effects on the physiological process of macrophages. Although it has been established that macrophage M1/M2 polarization could be manipulated by the surface nanostructure of biomaterial in our previous study under normal gravity, how will inflammatory monocytes (iMos)-derived macrophages respond to diverse nanostructured Ti surfaces under normal gravity or microgravity remains unrevealed. RESULTS In this study, Cytochalasin D, a cytoskeleton relaxant, was employed to establish the simulated microgravity (SMG) environment. Our results showed that human iMos polarized into M2c macrophages on NT5 surface but M1 type on NT20 surface with divergent inflammatory phenotypes according to the profile of macrophage polarization featured molecules under normal gravity. However, such manipulative effects of NTs surfaces on iMos-derived macrophages were strikingly weakened by SMG, characterized by the altered macrophage morphology, changed cytokine secretion profile, and decreased cell polarization capacity. CONCLUSIONS To our knowledge, this is the first metallic implantable material study focusing on the functions of specific monocyte subsets and its crucial role of the cytoskeleton in materials-mediated host immune response, which enriches our mechanism knowledge about the crosstalk between immunocytes and biomaterials. The results obtained in the present study may also provide potential targets and strategies for biomaterial development and clinical treatment via precise immune-regulation under normal gravity and microgravity.
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Affiliation(s)
- Zhaoyue Fu
- grid.233520.50000 0004 1761 4404Department of Immunology, School of Basic Medicine, Fourth Military Medical University, 169 West Changle Road, Xi’an, 710032 People’s Republic of China
| | - Yongli Hou
- grid.233520.50000 0004 1761 4404Department of Immunology, School of Basic Medicine, Fourth Military Medical University, 169 West Changle Road, Xi’an, 710032 People’s Republic of China
| | - Håvard Jostein Haugen
- grid.5510.10000 0004 1936 8921Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0317 Oslo, Norway
| | - Xutao Chen
- grid.233520.50000 0004 1761 4404Department of Immunology, School of Basic Medicine, Fourth Military Medical University, 169 West Changle Road, Xi’an, 710032 People’s Republic of China
| | - Kang Tang
- grid.233520.50000 0004 1761 4404Department of Immunology, School of Basic Medicine, Fourth Military Medical University, 169 West Changle Road, Xi’an, 710032 People’s Republic of China
| | - Liang Fang
- grid.233520.50000 0004 1761 4404Department of Immunology, School of Basic Medicine, Fourth Military Medical University, 169 West Changle Road, Xi’an, 710032 People’s Republic of China
| | - Yong Liu
- grid.233520.50000 0004 1761 4404The Key Laboratory of Aerospace Medicine, Ministry of Education, Air Force Medical University, Xi’an, 710032 Shaanxi China
| | - Shu Zhang
- grid.233520.50000 0004 1761 4404The Key Laboratory of Aerospace Medicine, Ministry of Education, Air Force Medical University, Xi’an, 710032 Shaanxi China
| | - Qianli Ma
- grid.233520.50000 0004 1761 4404Department of Immunology, School of Basic Medicine, Fourth Military Medical University, 169 West Changle Road, Xi’an, 710032 People’s Republic of China ,grid.5510.10000 0004 1936 8921Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0317 Oslo, Norway
| | - Lihua Chen
- grid.233520.50000 0004 1761 4404Department of Immunology, School of Basic Medicine, Fourth Military Medical University, 169 West Changle Road, Xi’an, 710032 People’s Republic of China ,grid.233520.50000 0004 1761 4404The Key Laboratory of Aerospace Medicine, Ministry of Education, Air Force Medical University, Xi’an, 710032 Shaanxi China
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Shirazi S, Ravindran S, Cooper LF. Topography-mediated immunomodulation in osseointegration; Ally or Enemy. Biomaterials 2022; 291:121903. [PMID: 36410109 PMCID: PMC10148651 DOI: 10.1016/j.biomaterials.2022.121903] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 11/11/2022]
Abstract
Osteoimmunology is at full display during endosseous implant osseointegration. Bone formation, maintenance and resorption at the implant surface is a result of bidirectional and dynamic reciprocal communication between the bone and immune cells that extends beyond the well-defined osteoblast-osteoclast signaling. Implant surface topography informs adherent progenitor and immune cell function and their cross-talk to modulate the process of bone accrual. Integrating titanium surface engineering with the principles of immunology is utilized to harness the power of immune system to improve osseointegration in healthy and diseased microenvironments. This review summarizes current information regarding immune cell-titanium implant surface interactions and places these events in the context of surface-mediated immunomodulation and bone regeneration. A mechanistic approach is directed in demonstrating the central role of osteoimmunology in the process of osseointegration and exploring how regulation of immune cell function at the implant-bone interface may be used in future control of clinical therapies. The process of peri-implant bone loss is also informed by immunomodulation at the implant surface. How surface topography is exploited to prevent osteoclastogenesis is considered herein with respect to peri-implant inflammation, osteoclastic precursor-surface interactions, and the upstream/downstream effects of surface topography on immune and progenitor cell function.
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Affiliation(s)
- Sajjad Shirazi
- Department of Oral Biology, College of Dentistry, University of Illinois Chicago, Chicago, IL, USA.
| | - Sriram Ravindran
- Department of Oral Biology, College of Dentistry, University of Illinois Chicago, Chicago, IL, USA
| | - Lyndon F Cooper
- School of Dentistry, Virginia Commonwealth University, Richmond, VA, USA.
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Johansson ML, Omar O, Trobos M, Jonhede S, Peters H, Hultcrantz M, Thomsen P. Non-invasive sampling procedure revealing the molecular events at different abutments of bone-anchored hearing systems–A prospective clinical pilot study. Front Neurosci 2022; 16:1058689. [DOI: 10.3389/fnins.2022.1058689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/17/2022] [Indexed: 11/10/2022] Open
Abstract
PurposeTo investigate the molecular activities in different compartments around the bone-anchored hearing system (BAHS) with either electropolished or machined abutments and to correlate these activities with clinical and microbiological findings.Materials and methodsTwelve patients received machined or electropolished abutments after implant installation of BAHS. Peri-abutment fluid and tissue were collected from baseline to 12 months. Gene expression of cytokines and factors related to tissue healing and inflammation, regeneration and remodelling, as well as bacterial recognition were determined using quantitative-polymerase chain reaction (qPCR). The clinical status was evaluated using the Holgers scoring system, and bacterial colonisation was investigated by culturing.ResultsThe gene expression of inflammatory cytokines (IL-8, IL-1β, and IL-10) and bacteria-related Toll-like receptors (2 and 4) was higher in the peri-abutment fluid than at baseline and in the peri-abutment tissue at 3 and 12 months. Conversely, the expression of genes related to tissue regeneration (Coll1a1 and FOXO1) was higher in the tissue samples than in the peri-abutment fluid at 3 and 12 months. Electropolished abutments triggered higher expression of inflammatory cytokines (IL-8 and IL-1β) (in peri-abutment fluid) and regeneration factor FOXO1 (in peri-abutment tissue) than machined abutments. Several cytokine genes in the peri-abutment fluid correlated positively with the detection of aerobes, anaerobes and Staphylococcus species, as well as with high Holger scores.ConclusionThis study provides unprecedented molecular information on the biological processes of BAHS. Despite being apparently healed, the peri-abutment fluid harbours prolonged inflammatory activity in conjunction with the presence of different bacterial species. An electropolished abutment surface appears to be associated with stronger proinflammatory activity than that with a machined surface. The analysis of the peri-abutment fluid deserves further verification as a non-invasive sampling and diagnostic procedure of BAHS.
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Cell response to plasma electrolytic oxidation surface-modified low-modulus β-type titanium alloys. Colloids Surf B Biointerfaces 2019; 176:176-184. [DOI: 10.1016/j.colsurfb.2018.12.064] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 12/18/2018] [Accepted: 12/22/2018] [Indexed: 12/24/2022]
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Zhang Y, Cheng X, Jansen JA, Yang F, van den Beucken JJ. Titanium surfaces characteristics modulate macrophage polarization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 95:143-151. [DOI: 10.1016/j.msec.2018.10.065] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 09/24/2018] [Accepted: 10/17/2018] [Indexed: 12/16/2022]
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Biomaterials: Foreign Bodies or Tuners for the Immune Response? Int J Mol Sci 2019; 20:ijms20030636. [PMID: 30717232 PMCID: PMC6386828 DOI: 10.3390/ijms20030636] [Citation(s) in RCA: 316] [Impact Index Per Article: 63.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/22/2019] [Accepted: 01/28/2019] [Indexed: 12/11/2022] Open
Abstract
The perspectives of regenerative medicine are still severely hampered by the host response to biomaterial implantation, despite the robustness of technologies that hold the promise to recover the functionality of damaged organs and tissues. In this scenario, the cellular and molecular events that decide on implant success and tissue regeneration are played at the interface between the foreign body and the host inflammation, determined by innate and adaptive immune responses. To avoid adverse events, rather than the use of inert scaffolds, current state of the art points to the use of immunomodulatory biomaterials and their knowledge-based use to reduce neutrophil activation, and optimize M1 to M2 macrophage polarization, Th1 to Th2 lymphocyte switch, and Treg induction. Despite the fact that the field is still evolving and much remains to be accomplished, recent research breakthroughs have provided a broader insight on the correct choice of biomaterial physicochemical modifications to tune the reaction of the host immune system to implanted biomaterial and to favor integration and healing.
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Lv L, Xie Y, Li K, Hu T, Lu X, Cao Y, Zheng X. Unveiling the Mechanism of Surface Hydrophilicity-Modulated Macrophage Polarization. Adv Healthc Mater 2018; 7:e1800675. [PMID: 30106513 DOI: 10.1002/adhm.201800675] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 07/24/2018] [Indexed: 12/22/2022]
Abstract
With inflammation increasingly recognized as a key factor that influences fracture healing, the immunologic response is considered to play a pivotal role in determining implant-mediated osteogenesis. Herein, this paper demonstrates that modification of the surface hydrophilicity of Ti surface oxides can be utilized to control immune response by steering the macrophage polarization toward pro- or anti-inflammation phenotype. Enhanced anti-inflammatory and prohealing performance of macrophages is observed on hydrophilic surfaces compared to hydrophobic ones. Further study on the detailed mechanism demonstrates that the surface hydrophilicity controls specific proteins (fibronectin and fibrinogen) adsorption and conformation, which activate different signaling pathways (PI3K and NF-κB) through selective expression of integrin β1 or β2 to influence the behaviors of macrophages. Thus, this study presents a mechanism of macrophage polarization modulated by surface hydrophilicity for the surface design of advanced implant materials with satisfactory anti-inflammatory and osteogenesis-promoting properties.
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Affiliation(s)
- Lin Lv
- Key Laboratory of Inorganic Coating Materials CASShanghai Institute of CeramicsChinese Academy of Sciences 1295 Dingxi Road Shanghai 200050 P. R. China
- University of Chinese Academy of Sciences 19 Yuquan Road Beijing 100049 P. R. China
| | - Youtao Xie
- Key Laboratory of Inorganic Coating Materials CASShanghai Institute of CeramicsChinese Academy of Sciences 1295 Dingxi Road Shanghai 200050 P. R. China
| | - Kai Li
- Key Laboratory of Inorganic Coating Materials CASShanghai Institute of CeramicsChinese Academy of Sciences 1295 Dingxi Road Shanghai 200050 P. R. China
| | - Tao Hu
- Department of Spine SurgeryShanghai East HospitalTongji University School of Medicine Shanghai 200050 P. R. China
| | - Xiang Lu
- Key Laboratory of Inorganic Coating Materials CASShanghai Institute of CeramicsChinese Academy of Sciences 1295 Dingxi Road Shanghai 200050 P. R. China
- University of Chinese Academy of Sciences 19 Yuquan Road Beijing 100049 P. R. China
| | - Yunzhen Cao
- Key Laboratory of Inorganic Coating Materials CASShanghai Institute of CeramicsChinese Academy of Sciences 1295 Dingxi Road Shanghai 200050 P. R. China
| | - Xuebin Zheng
- Key Laboratory of Inorganic Coating Materials CASShanghai Institute of CeramicsChinese Academy of Sciences 1295 Dingxi Road Shanghai 200050 P. R. China
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Brown BN, Haschak MJ, Lopresti ST, Stahl EC. Effects of age-related shifts in cellular function and local microenvironment upon the innate immune response to implants. Semin Immunol 2017; 29:24-32. [PMID: 28539184 DOI: 10.1016/j.smim.2017.05.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 04/18/2017] [Accepted: 05/11/2017] [Indexed: 12/14/2022]
Abstract
The host macrophage response is now well recognized as a predictor of the success or failure of biomaterial implants following placement. More specifically, shifts from an "M1" pro-inflammatory towards a more "M2-like" anti-inflammatory macrophage polarization profile have been shown to result in enhanced material integration and/or tissue regeneration downstream. As a result, a number of biomaterials-based approaches to controlling macrophage polarization have been developed. However, the ability to promote such activity is predicated upon an in-depth, context-dependent understanding of the host response to biomaterials. Recent work has shown the impacts of both tissue location and tissue status (i.e. underlying pathology) upon the host innate immune response to implants, representing a departure from a focus upon implant material composition and form. Thus, the ideas of "biocompatibility," the host macrophage reaction, and ideal material requirements and modification strategies may need to be revisited on a patient, tissue, and disease basis. Immunosenescence, dysregulation of macrophage function, and delayed resolution of immune responses in aged individuals have all been demonstrated, suggesting that the host response to biomaterials in aged individuals should differ from that in younger individuals. However, despite the increasing usage of implantable medical devices in aged patients, few studies examining the effects of aging upon the host response to biomaterials and the implications of this response for long-term integration and function have been performed. The objective of the present manuscript is to review the putative effects of aging upon the host response to implanted materials and to advance the hypothesis that age-related changes in the local microenvrionement, with emphasis on the extracellular matrix, play a previously unrecognized role in determining the host response to implants.
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Affiliation(s)
- Bryan N Brown
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, United States; Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, University of Pittsburgh, 300 Halket Street, Pittsburgh, PA 15213, United States.
| | - Martin J Haschak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, United States
| | - Samuel T Lopresti
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, United States
| | - Elizabeth C Stahl
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States; Department of Pathology, University of Pittsburgh School of Medicine, University of Pittsburgh, 200 Lothrop St., Pittsburgh, PA 15261, United States
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Przekora A, Ginalska G. Chitosan/β-1,3-glucan/hydroxyapatite bone scaffold enhances osteogenic differentiation through TNF-α-mediated mechanism. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:225-233. [DOI: 10.1016/j.msec.2016.12.081] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 10/04/2016] [Accepted: 12/16/2016] [Indexed: 12/31/2022]
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Hachim D, Wang N, Lopresti ST, Stahl EC, Umeda YU, Rege RD, Carey ST, Mani D, Brown BN. Effects of aging upon the host response to implants. J Biomed Mater Res A 2017; 105:1281-1292. [PMID: 28130823 DOI: 10.1002/jbm.a.36013] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 01/05/2017] [Accepted: 01/23/2017] [Indexed: 01/11/2023]
Abstract
Macrophage polarization during the host response is now a well-accepted predictor of outcomes following material implantation. Immunosenescence, dysregulation of macrophage function, and delayed resolution of immune responses in aged individuals have all been demonstrated, suggesting that host responses to materials in aged individuals should differ from those in younger individuals. However, few studies examining the effects of aging upon the host response have been performed. The present work sought to elucidate the impacts of aging upon the host response to polypropylene mesh implanted into 8-week-old and 18-month-old mice. The results showed that there are significant differences in macrophage surface marker expression, migration, and polarization during the early host macrophage response and delayed resolution of the host response in 18-month-old versus 8-week-old mice. These differences could not be attributed to cell-intrinsic defects alone, suggesting that the host macrophage response to implants is likely also dictated to a significant degree by the local tissue microenvironment. These results raise important questions about the design and testing of materials and devices often intended to treat aged individuals and suggest that an improved understanding of patient- and context-dependent macrophage responses has the potential to improve outcomes in aged individuals. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 1281-1292, 2017.
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Affiliation(s)
- Daniel Hachim
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, Pennsylvania, 15219.,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, Pennsylvania, 15260
| | - Na Wang
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, Pennsylvania, 15219
| | - Samuel T Lopresti
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, Pennsylvania, 15219.,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, Pennsylvania, 15260
| | - Elizabeth C Stahl
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, Pennsylvania, 15219.,Department of Pathology, University of Pittsburgh School of Medicine, University of Pittsburgh, 200 Lothrop St, Pittsburgh, Pennsylvania, 15261
| | - Yuta U Umeda
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, Pennsylvania, 15260
| | - Rahul D Rege
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, Pennsylvania, 15260
| | - Sean T Carey
- Department of Chemical Engineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, Pennsylvania, 15260
| | - Deepa Mani
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, Pennsylvania, 15219
| | - Bryan N Brown
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, Pennsylvania, 15219.,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, Pennsylvania, 15260.,Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, University of Pittsburgh, 300 Halket Street, Pittsburgh, Pennsylvania, 15213
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14
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Barr S, Hill E, Bayat A. Development, fabrication and evaluation of a novel biomimetic human breast tissue derived breast implant surface. Acta Biomater 2017; 49:260-271. [PMID: 27919840 DOI: 10.1016/j.actbio.2016.11.052] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Revised: 11/18/2016] [Accepted: 11/22/2016] [Indexed: 12/17/2022]
Abstract
Breast implant use has tripled in the last decade with over 320,000 breast implant based reconstructions and augmentations performed in the US per annum. Unfortunately a considerable number of women will experience capsular contracture, the irrepressible and disfiguring, tightening and hardening of the fibrous capsule that envelops the implant. Functionalising implant surfaces with biocompatible tissue-specific textures may improve in vivo performance. A novel biomimetic breast implant is presented here with anti-inflammatory in vitro abilities. Topographical assessment of native breast tissue facilitated the development of a statistical model of adipose tissue. 3D grayscale photolithography and ion etching were combined to successfully replicate a surface modelled upon the statistics of breast tissue. Pro-inflammatory genes ILβ1, TNFα, and IL6 were downregulated (p<0.001) and anti-inflammatory gene IL-10 were upregulated on the novel surface. Pro-inflammatory cytokines Gro-Alpha, TNFα and neutrophil chemoattractant IL8 were produced in lower quantities and anti-inflammatory IL-10 in higher quantities in culture with the novel surface (p<0.01). Immunocytochemistry and SEM demonstrated favourable fibroblast and macrophage responses to these novel surfaces. This study describes the first biomimetic breast tissue derived breast implant surface. Our findings attest to its potential translational ability to reduce the inflammatory phase of the implant driven foreign body reaction. STATEMENT OF SIGNIFICANCE Breast implants are still manufactured using outdated techniques and have changed little since their inception in the 1960's. Breast implants can cause a medical condition, capsular contracture which often results in disfigurement, pain, implant removal and further surgery. This condition is due to the body's reaction to these breast implants. This article describes the successful development and testing of a novel breast implant surface inspired by the native shapes present in breast tissue. Results show that this novel implant surface is capable of reducing the negative reaction of human cells to these surfaces which may help reduce capsular contracture formation. This work represents the first steps in producing a biocompatible breast implant.
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15
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Moura CCG, Zanetta-Barbosa D, Dechichi P, Carvalho VF, Soares PBF. Effects of titanium surfaces on the developmental profile of monocytes/macrophages. Braz Dent J 2016; 25:96-103. [PMID: 25140712 DOI: 10.1590/0103-6440201302260] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Accepted: 12/19/2013] [Indexed: 01/03/2023] Open
Abstract
Due to the critical role of monocytes/macrophages (Mϕ) in bone healing, this study evaluated the effects of bio-anodized, acid-etched, and machined titanium surfaces (Ti) on Mϕ behavior. Cells were separated from whole human blood from 10 patients, plated on Ti or polystyrene (control) surfaces, and cultured for 72 h. At 24, 48 and 72 h, cell viability, levels of IL1β, IL10, TNFα, TGFβ1 inflammatory mediators, and nitric oxide (NO) release were analyzed by mitochondrial colorimetric assay (MTT assay) and immunoenzymatic assays, respectively. Real-time PCR was used to verify the expression of TNFα and IL10 at 72 h. The data were subjected to a Kruskal-Wallis analysis. IL1β, TNFα and TGFβ1 release were not significantly different between the Ti surfaces (p>0.05). The presence of NO and IL10 was not detected in the samples. Cell viability did not differ between the samples cultivated on Ti and those cultivated on control surfaces, except at 24 h (p=0.0033). With respect to the mediators evaluated, the surface characteristics did not induce a typical Th1 or Th2 cytokine profile, although the cell morphology and topography were influenced by the Ti surface during the initial period.
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Affiliation(s)
| | - Darceny Zanetta-Barbosa
- Department of Oral and Maxillofacial Surgery and Implantology, School of Dentistry, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Paula Dechichi
- Department of Morphology, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Valessa Florindo Carvalho
- Department of Operative Dentistry and Dental Materials, School of Dentistry, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Priscilla Barbosa Ferreira Soares
- Department of Oral and Maxillofacial Surgery and Implantology, School of Dentistry, Federal University of Uberlândia, Uberlândia, MG, Brazil
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16
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Malheiro V, Lehner F, Dinca V, Hoffmann P, Maniura-Weber K. Convex and concave micro-structured silicone controls the shape, but not the polarization state of human macrophages. Biomater Sci 2016; 4:1562-1573. [DOI: 10.1039/c6bm00425c] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The typical foreign body response (FBR) to synthetic implants is characterized by local inflammation and tissue fibrosis.
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Affiliation(s)
- V. Malheiro
- Biointerfaces
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- St. Gallen
- Switzerland
| | - F. Lehner
- Biointerfaces
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- St. Gallen
- Switzerland
| | - V. Dinca
- Advanced Materials Processing
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- Thun
- Switzerland
| | - P. Hoffmann
- Advanced Materials Processing
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- Thun
- Switzerland
| | - K. Maniura-Weber
- Biointerfaces
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- St. Gallen
- Switzerland
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17
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Díaz-Rodríguez P, Gómez-Amoza JL, Landin M. The synergistic effect of VEGF and biomorphic silicon carbides topography on
in vivo
angiogenesis and human bone marrow derived mesenchymal stem cell differentiation. Biomed Mater 2015; 10:045017. [DOI: 10.1088/1748-6041/10/4/045017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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18
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Innate Immunity and Biomaterials at the Nexus: Friends or Foes. BIOMED RESEARCH INTERNATIONAL 2015; 2015:342304. [PMID: 26247017 PMCID: PMC4515263 DOI: 10.1155/2015/342304] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 06/15/2015] [Accepted: 06/22/2015] [Indexed: 01/04/2023]
Abstract
Biomaterial implants are an established part of medical practice, encompassing a broad range of devices that widely differ in function and structural composition. However, one common property amongst biomaterials is the induction of the foreign body response: an acute sterile inflammatory reaction which overlaps with tissue vascularisation and remodelling and ultimately fibrotic encapsulation of the biomaterial to prevent further interaction with host tissue. Severity and clinical manifestation of the biomaterial-induced foreign body response are different for each biomaterial, with cases of incompatibility often associated with loss of function. However, unravelling the mechanisms that progress to the formation of the fibrotic capsule highlights the tightly intertwined nature of immunological responses to a seemingly noncanonical “antigen.” In this review, we detail the pathways associated with the foreign body response and describe possible mechanisms of immune involvement that can be targeted. We also discuss methods of modulating the immune response by altering the physiochemical surface properties of the biomaterial prior to implantation. Developments in these areas are reliant on reproducible and effective animal models and may allow a “combined” immunomodulatory approach of adapting surface properties of biomaterials, as well as treating key immune pathways to ultimately reduce the negative consequences of biomaterial implantation.
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19
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Rostam HM, Singh S, Vrana NE, Alexander MR, Ghaemmaghami AM. Impact of surface chemistry and topography on the function of antigen presenting cells. Biomater Sci 2015. [DOI: 10.1039/c4bm00375f] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The impact of biomaterial surface topography and chemistry on antigen presenting cells’ phenotype and function.
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Affiliation(s)
- H. M. Rostam
- Immunology and Tissue Modelling Group
- School of Life Science
- University of Nottingham
- Queen's Medical Centre
- Nottingham
| | - S. Singh
- Immunology and Tissue Modelling Group
- School of Life Science
- University of Nottingham
- Queen's Medical Centre
- Nottingham
| | - N. E. Vrana
- Université de Strasbourg
- Faculté de Chirurgie Dentaire
- France
- Protip SAS
- Strasbourg
| | - M. R. Alexander
- Interface and Surface Analysis Centre
- School of Pharmacy
- University of Nottingham
- UK
| | - A. M. Ghaemmaghami
- Immunology and Tissue Modelling Group
- School of Life Science
- University of Nottingham
- Queen's Medical Centre
- Nottingham
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20
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Ma QL, Zhao LZ, Liu RR, Jin BQ, Song W, Wang Y, Zhang YS, Chen LH, Zhang YM. Improved implant osseointegration of a nanostructured titanium surface via mediation of macrophage polarization. Biomaterials 2014; 35:9853-9867. [PMID: 25201737 DOI: 10.1016/j.biomaterials.2014.08.025] [Citation(s) in RCA: 198] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 08/14/2014] [Indexed: 12/19/2022]
Abstract
The use of endosseous implanted materials is often limited by undesirable effects that may be due to macrophage-related inflammation. The purpose of this study was to fabricate a nanostructured surface on a titanium implant to regulate the macrophage inflammatory response and improve the performance of the implant. Anodization at 5 and 20 V as well as UV irradiation were used to generate hydrophilic, nanostructured TiO2 surfaces (denoted as NT5 and NT20, respectively). Their surface characteristics and in vivo osseointegration as well as the inflammatory response they elicit were analyzed. In addition, the behavior of macrophages in vitro was evaluated. Although the in vitro osteogenic activity on the two surfaces was similar, the NT5 surface was associated with more bone formation, less inflammation, and a reduced CD68(+) macrophage distribution in vivo compared to the NT20 and polished Ti surfaces. Consistently, further experiments revealed that the NT5 surface induced healing-associated M2 polarization in vitro and in vivo. By contrast, the NT20 surface promoted the pro-inflammatory M1 polarization, which could further impair bone regeneration. The results demonstrate the dominant role of macrophage-related inflammation in bone healing around implants and that surface nanotopography can be designed to have an immune-regulating effect in support of the success of implants.
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Affiliation(s)
- Qian-Li Ma
- State Key Laboratory of Military Stomatology, Department of Prosthetic Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Ling-Zhou Zhao
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Rong-Rong Liu
- Department of Immunology, School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Bo-Quan Jin
- Department of Immunology, School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Wen Song
- State Key Laboratory of Military Stomatology, Department of Prosthetic Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Ying Wang
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Yu-Si Zhang
- Department of Immunology, School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Li-Hua Chen
- Department of Immunology, School of Basic Medicine, Fourth Military Medical University, Xi'an, China.
| | - Yu-Mei Zhang
- State Key Laboratory of Military Stomatology, Department of Prosthetic Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, China.
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21
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Wells LA, Sefton MV. The effect of methacrylic acid in smooth coatings on dTHP1 and HUVEC gene expression. Biomater Sci 2014; 2:1768-1778. [DOI: 10.1039/c4bm00159a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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22
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Abstract
With advancements in biological and engineering sciences, the definition of an ideal biomaterial has evolved over the past 50 years from a substance that is inert to one that has select bioinductive properties and integrates well with adjacent host tissue. Biomaterials are a fundamental component of tissue engineering, which aims to replace diseased, damaged, or missing tissue with reconstructed functional tissue. Most biomaterials are less than satisfactory for pediatric patients because the scaffold must adapt to the growth and development of the surrounding tissues and organs over time. The pediatric community, therefore, provides a distinct challenge for the tissue engineering community.
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Affiliation(s)
- Timothy J Keane
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, Bridgeside Point 2, 450 Technology Drive, Pittsburgh, Pennsylvania 15219; Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, Bridgeside Point 2, 450 Technology Drive, Pittsburgh, Pennsylvania 15219; Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.
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23
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Svensson S, Forsberg M, Hulander M, Vazirisani F, Palmquist A, Lausmaa J, Thomsen P, Trobos M. Role of nanostructured gold surfaces on monocyte activation and Staphylococcus epidermidis biofilm formation. Int J Nanomedicine 2014; 9:775-94. [PMID: 24550671 PMCID: PMC3925225 DOI: 10.2147/ijn.s51465] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The role of material surface properties in the direct interaction with bacteria and the indirect route via host defense cells is not fully understood. Recently, it was suggested that nanostructured implant surfaces possess antimicrobial properties. In the current study, the adhesion and biofilm formation of Staphylococcus epidermidis and human monocyte adhesion and activation were studied separately and in coculture in different in vitro models using smooth gold and well-defined nanostructured gold surfaces. Two polystyrene surfaces were used as controls in the monocyte experiments. Fluorescent viability staining demonstrated a reduction in the viability of S. epidermidis close to the nanostructured gold surface, whereas the smooth gold correlated with more live biofilm. The results were supported by scanning electron microscopy observations, showing higher biofilm tower formations and more mature biofilms on smooth gold compared with nanostructured gold. Unstimulated monocytes on the different substrates demonstrated low activation, reduced gene expression of pro- and anti-inflammatory cytokines, and low cytokine secretion. In contrast, stimulation with opsonized zymosan or opsonized live S. epidermidis for 1 hour significantly increased the production of reactive oxygen species, the gene expression of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), IL-6, and IL-10, as well as the secretion of TNF-α, demonstrating the ability of the cells to elicit a response and actively phagocytose prey. In addition, cells cultured on the smooth gold and the nanostructured gold displayed a different adhesion pattern and a more rapid oxidative burst than those cultured on polystyrene upon stimulation. We conclude that S. epidermidis decreased its viability initially when adhering to nanostructured surfaces compared with smooth gold surfaces, especially in the bacterial cell layers closest to the surface. In contrast, material surface properties neither strongly promoted nor attenuated the activity of monocytes when exposed to zymosan particles or S. epidermidis.
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Affiliation(s)
- Sara Svensson
- Department of Biomaterials, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden ; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Gothenburg, Sweden
| | - Magnus Forsberg
- Department of Biomaterials, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden ; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Gothenburg, Sweden
| | - Mats Hulander
- Department of Biomaterials, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden ; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Gothenburg, Sweden
| | - Forugh Vazirisani
- Department of Biomaterials, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden ; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Gothenburg, Sweden
| | - Anders Palmquist
- Department of Biomaterials, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden ; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Gothenburg, Sweden
| | - Jukka Lausmaa
- BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Gothenburg, Sweden ; SP Technical Research Institute of Sweden, Borås, Sweden
| | - Peter Thomsen
- Department of Biomaterials, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden ; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Gothenburg, Sweden
| | - Margarita Trobos
- Department of Biomaterials, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden ; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Gothenburg, Sweden
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24
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Amini AR, Laurencin CT, Nukavarapu SP. Bone tissue engineering: recent advances and challenges. Crit Rev Biomed Eng 2013; 40:363-408. [PMID: 23339648 DOI: 10.1615/critrevbiomedeng.v40.i5.10] [Citation(s) in RCA: 1314] [Impact Index Per Article: 119.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The worldwide incidence of bone disorders and conditions has trended steeply upward and is expected to double by 2020, especially in populations where aging is coupled with increased obesity and poor physical activity. Engineered bone tissue has been viewed as a potential alternative to the conventional use of bone grafts, due to their limitless supply and no disease transmission. However, bone tissue engineering practices have not proceeded to clinical practice due to several limitations or challenges. Bone tissue engineering aims to induce new functional bone regeneration via the synergistic combination of biomaterials, cells, and factor therapy. In this review, we discuss the fundamentals of bone tissue engineering, highlighting the current state of this field. Further, we review the recent advances of biomaterial and cell-based research, as well as approaches used to enhance bone regeneration. Specifically, we discuss widely investigated biomaterial scaffolds, micro- and nano-structural properties of these scaffolds, and the incorporation of biomimetic properties and/or growth factors. In addition, we examine various cellular approaches, including the use of mesenchymal stem cells (MSCs), embryonic stem cells (ESCs), adult stem cells, induced pluripotent stem cells (iPSCs), and platelet-rich plasma (PRP), and their clinical application strengths and limitations. We conclude by overviewing the challenges that face the bone tissue engineering field, such as the lack of sufficient vascularization at the defect site, and the research aimed at functional bone tissue engineering. These challenges will drive future research in the field.
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Affiliation(s)
- Ami R Amini
- Department of Orthopedic Surgery, University of Connecticut Health Center, Farmington, CT, USA
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25
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Brown BN, Badylak SF. Expanded applications, shifting paradigms and an improved understanding of host-biomaterial interactions. Acta Biomater 2013; 9:4948-55. [PMID: 23099303 DOI: 10.1016/j.actbio.2012.10.025] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Revised: 10/10/2012] [Accepted: 10/17/2012] [Indexed: 02/06/2023]
Abstract
The conventional approach to biomaterial design and development typically focuses upon the mechanical and material properties with long-term objectives that include an inert host immune response and long-lasting mechanical and structural support. The emergence of and interest in tissue engineering and regenerative medicine have driven the development of novel cell-friendly biomaterials, materials with tailored degradation rates, materials with highly specific architectures and surfaces, and vehicles for delivery of bioactive molecules, among numerous other advancements. Each of these biomaterial developments supports specific strategies for tissue repair and reconstruction. These advancements in biomaterial form and function, combined with new knowledge of innate and acquired immune system biology, provide an impetus for re-examination of host-biomaterial interactions, including host-biomaterial interface events, spatial and temporal patterns of in vivo biomaterial remodeling, and related downstream functional outcomes. An examination of such issues is provided herein with a particular focus on macrophage polarization and its implications in tissue engineering and regenerative medicine.
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26
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Blakney AK, Swartzlander MD, Bryant SJ. The effects of substrate stiffness on the in vitro activation of macrophages and in vivo host response to poly(ethylene glycol)-based hydrogels. J Biomed Mater Res A 2012; 100:1375-86. [PMID: 22407522 DOI: 10.1002/jbm.a.34104] [Citation(s) in RCA: 323] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Accepted: 12/13/2011] [Indexed: 12/18/2022]
Abstract
Poly(ethylene glycol) (PEG) hydrogels, modified with RGD, are promising platforms for cell encapsulation and tissue engineering. While these hydrogels offer tunable mechanical properties, the extent of the host response may limit their in vivo applicability. The overall objective was to characterize the effects of hydrogel stiffness on the in vitro macrophage response and in vivo host response. We hypothesized that stiffer substrates induce better attachment, adhesion, and increased cell spreading, which elevates the macrophage classically activated phenotype and leads to a more severe foreign body reaction (FBR). PEG-RGD hydrogels were fabricated with compressive moduli of 130, 240, and 840 kPa, and the same RGD concentration. Hydrogel stiffness did not impact macrophage attachment, but elicited differences in cell morphology. Cells retained a round morphology on 130 kPa substrates, with localized and dense F-actin and localized α(V) integrin stainings. Contrarily, cells on stiffer substrates were more spread, with filopodia protruding from the cell, a more defined F-actin, and greater α(V) integrin staining. When stimulated with lipopolysaccharide, macrophages had a classical activation phenotype, with increased expression of TNF-α, IL-1β, and IL-6, however the degree of activation was significantly reduced with the softest hydrogels. A FBR ensued in response to all hydrogels when implanted subcutaneously in mice, but 28 days postimplantation the layer of macrophages at the implant surface was significantly lower in the softest hydrogels. In conclusion, hydrogels with lower stiffness led to reduced macrophage activation and a less severe and more typical FBR, and therefore are more suited for in vivo tissue engineering applications.
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Affiliation(s)
- Anna K Blakney
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, USA
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27
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Battiston KG, McBane JE, Labow RS, Paul Santerre J. Differences in protein binding and cytokine release from monocytes on commercially sourced tissue culture polystyrene. Acta Biomater 2012; 8:89-98. [PMID: 21963405 DOI: 10.1016/j.actbio.2011.09.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 09/14/2011] [Accepted: 09/14/2011] [Indexed: 12/23/2022]
Abstract
Tissue culture polystyrene (TCPS) is a ubiquitous substrate used by many researchers in the biomedical and biological sciences. Different parameters involved in the production of TCPS, including the treatment time and the use of reactive gases and chemical agents, can have a significant influence on the ultimate surface properties achieved. The assumption that they will all yield a consistent and controlled product has not proven to be true. To provide a better insight into the bioactivity differences in TCPS supplied by different manufacturers, TCPS from three different companies (Sarstedt, Wisent Corp., and Becton Dickinson (BD)) were analyzed for their surface properties, protein adsorption characteristics, and interactions with human monocytes. Marked differences were observed in terms of surface wettability and surface chemistry. Furthermore, Wisent TCPS adsorbed more than twice the amount of serum proteins compared with BD and Sarstedt TCPS. Sarstedt showed significantly more cell retention (more DNA) compared with both BD and Wisent TCPS brands over a 7 day culture period. Cytokine release from monocytes adherent on the three different TCPS also differed significantly, suggesting that the differences in the surface properties were sufficient to differentially mediate monocyte activation. These results have important implications for TCPS research use, in terms of appreciating the interpretation of the data when TCPS is used as a control substrate as well as when it is used where a pre-conditioned state would influence the outcome of the study.
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