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Park JE, Kim DH. Advanced Immunomodulatory Biomaterials for Therapeutic Applications. Adv Healthc Mater 2024:e2304496. [PMID: 38716543 DOI: 10.1002/adhm.202304496] [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: 12/16/2023] [Revised: 04/15/2024] [Indexed: 05/22/2024]
Abstract
The multifaceted biological defense system modulating complex immune responses against pathogens and foreign materials plays a critical role in tissue homeostasis and disease progression. Recently developed biomaterials that can specifically regulate immune responses, nanoparticles, graphene, and functional hydrogels have contributed to the advancement of tissue engineering as well as disease treatment. The interaction between innate and adaptive immunity, collectively determining immune responses, can be regulated by mechanobiological recognition and adaptation of immune cells to the extracellular microenvironment. Therefore, applying immunomodulation to tissue regeneration and cancer therapy involves manipulating the properties of biomaterials by tailoring their composition in the context of the immune system. This review provides a comprehensive overview of how the physicochemical attributes of biomaterials determine immune responses, focusing on the physical properties that influence innate and adaptive immunity. This review also underscores the critical aspect of biomaterial-based immune engineering for the development of novel therapeutics and emphasizes the importance of understanding the biomaterials-mediated immunological mechanisms and their role in modulating the immune system.
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Affiliation(s)
- Ji-Eun Park
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
| | - Dong-Hwee Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
- Department of Integrative Energy Engineering, College of Engineering, Korea University, Seoul, 02841, Republic of Korea
- Biomedical Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
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2
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Gou M, Wang H, Xie H, Song H. Macrophages in guided bone regeneration: potential roles and future directions. Front Immunol 2024; 15:1396759. [PMID: 38736888 PMCID: PMC11082316 DOI: 10.3389/fimmu.2024.1396759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 04/15/2024] [Indexed: 05/14/2024] Open
Abstract
Guided bone regeneration (GBR) is one of the most widely used and thoroughly documented alveolar bone augmentation surgeries. However, implanting GBR membranes inevitably triggers an immune response, which can lead to inflammation and failure of bone augmentation. It has been shown that GBR membranes may significantly improve in vivo outcomes as potent immunomodulators, rather than solely serving as traditional barriers. Macrophages play crucial roles in immune responses and participate in the entire process of bone injury repair. The significant diversity and high plasticity of macrophages complicate our understanding of the immunomodulatory mechanisms underlying GBR. This review provides a comprehensive summary of recent findings on the potential role of macrophages in GBR for bone defects in situ. Specifically, macrophages can promote osteogenesis or fibrous tissue formation in bone defects and degradation or fibrous encapsulation of membranes. Moreover, GBR membranes can influence the recruitment and polarization of macrophages. Therefore, immunomodulating GBR membranes are primarily developed by improving macrophage recruitment and aggregation as well as regulating macrophage polarization. However, certain challenges remain to be addressed in the future. For example, developing more rational and sophisticated sequential delivery systems for macrophage activation reagents; addressing the interference of bone graft materials and dental implants; and understanding the correlations among membrane degradation, macrophage responses, and bone regeneration.
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Affiliation(s)
- Min Gou
- Department of Stomatology, Chengdu Second People’s Hospital, Chengdu, China
| | - Hang Wang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Huiqi Xie
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Hongjie Song
- Department of Stomatology, Chengdu Second People’s Hospital, Chengdu, China
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3
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Gokaltun AA, Fan L, Mazzaferro L, Byrne D, Yarmush ML, Dai T, Asatekin A, Usta OB. Supramolecular hybrid hydrogels as rapidly on-demand dissoluble, self-healing, and biocompatible burn dressings. Bioact Mater 2023; 25:415-429. [PMID: 37056249 PMCID: PMC10087110 DOI: 10.1016/j.bioactmat.2022.09.003] [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: 05/25/2022] [Revised: 08/15/2022] [Accepted: 09/05/2022] [Indexed: 11/02/2022] Open
Abstract
Despite decades of efforts, state-of-the-art synthetic burn dressings to treat partial-thickness burns are still far from ideal. Current dressings adhere to the wound and necessitate debridement. This work describes the first "supramolecular hybrid hydrogel (SHH)" burn dressing that is biocompatible, self-healable, and on-demand dissoluble for easy and trauma-free removal, prepared by a simple, fast, and scalable method. These SHHs leverage the interactions of a custom-designed cationic copolymer via host-guest chemistry with cucurbit[7]uril and electrostatic interactions with clay nanosheets coated with an anionic polymer to achieve enhanced mechanical properties and fast on-demand dissolution. The SHHs show high mechanical strength (>50 kPa), self-heal rapidly in ∼1 min, and dissolve quickly (4-6 min) using an amantadine hydrochloride (AH) solution that breaks the supramolecular interactions in the SHHs. Neither the SHHs nor the AH solution has any adverse effects on human dermal fibroblasts or epidermal keratinocytes in vitro. The SHHs also do not elicit any significant cytokine response in vitro. Furthermore, in vivo murine experiments show no immune or inflammatory cell infiltration in the subcutaneous tissue and no change in circulatory cytokines compared to sham controls. Thus, these SHHs present excellent burn dressing candidates to reduce the time of pain and time associated with dressing changes.
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Affiliation(s)
- A. Aslihan Gokaltun
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St., Boston, MA, 02114, USA
- Shriners Hospitals for Children, 51 Blossom St., Boston, MA, 02114, USA
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby St., Medford, MA, 02474, USA
- Department of Chemical Engineering, Hacettepe University, 06532, Beytepe, Ankara, Turkey
| | - Letao Fan
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St., Boston, MA, 02114, USA
- Shriners Hospitals for Children, 51 Blossom St., Boston, MA, 02114, USA
| | - Luca Mazzaferro
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby St., Medford, MA, 02474, USA
| | - Delaney Byrne
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St., Boston, MA, 02114, USA
- Shriners Hospitals for Children, 51 Blossom St., Boston, MA, 02114, USA
| | - Martin L. Yarmush
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St., Boston, MA, 02114, USA
- Shriners Hospitals for Children, 51 Blossom St., Boston, MA, 02114, USA
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd., Piscataway, NJ, 08854, USA
| | - Tianhong Dai
- Wellman Center for Photomedicine, Massachusetts General Hospital, Department of Dermatology, Harvard Medical School, 50 Blossom Street, Boston, MA, 02114, USA
| | - Ayse Asatekin
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby St., Medford, MA, 02474, USA
| | - O. Berk Usta
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St., Boston, MA, 02114, USA
- Shriners Hospitals for Children, 51 Blossom St., Boston, MA, 02114, USA
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4
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Zhang Z, He Q, Zhu J, Lin X, Yang Y, Chen H, Huang X, Xu R, Deng F. Optimizing the combined soft tissue repair and osteogenesis using double surfaces of crosslinked collagen scaffolds. J Biomed Mater Res B Appl Biomater 2023; 111:1271-1285. [PMID: 36779616 DOI: 10.1002/jbm.b.35231] [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: 11/03/2022] [Revised: 01/22/2023] [Accepted: 01/30/2023] [Indexed: 02/14/2023]
Abstract
Excessive tissue damage or loss has been solved by guided tissue regeneration and guided bone regeneration theories. However, the unfavorable degradation property of the resorbable collagen scaffold brings a big challenge to support soft tissue stabilization and time-consuming osteogenesis. The combined effect for soft tissue and bone of the collagen scaffold with better degradation pattern has not been clearly proven. This study determined whether the double surfaces of crosslinked collagen scaffolds could optimize the combined soft tissue repair and osteogenesis. In this study, we applied the chemically crosslinking treatment to the commercially available collagen scaffolds. Surface characterization, mechanical property and cell proliferation in vitro were evaluated. Combined bilateral skin and bone defects were established with the smooth surface of scaffold facing the skin defect and the rough surface facing the bone defect on the calvaria of rat. Micro-CT and histological evaluation were applied to determine the scaffold degradation pattern, soft tissue repair and osteogenesis. The crosslinked collagen scaffolds showed comparably favorable surface porosity, structure intactness, superhydrophilicity and mechanical properties. Compared to the native scaffolds, the crosslinked scaffolds could optimize the combined soft tissue repair and osteogenesis by preferably prolonged degradation time. Early pro-angiogenesis facilitated soft tissue repair and osteogenesis by upregulated soft tissue matrix degradation and balanced pro-osteogenesis with limited osteoclast-mediated bone resorption. Taken together, this study offers a promising repair strategy for the combined soft tissue and bone defects. Further, the possible mechanism of controllable scaffold degradation should be conducted.
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Affiliation(s)
- Zhengchuan Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Qifen He
- Department of Stomatology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Jinhao Zhu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaoxuan Lin
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yang Yang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Hongcheng Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaoqiong Huang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Ruogu Xu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Feilong Deng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
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5
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Brady EL, Prado O, Johansson F, Mitchell SN, Martinson AM, Karbassi E, Reinecke H, Murry CE, Davis J, Stevens KR. Engineered tissue vascularization and engraftment depends on host model. Sci Rep 2023; 13:1973. [PMID: 36737618 PMCID: PMC9898562 DOI: 10.1038/s41598-022-23895-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 11/07/2022] [Indexed: 02/05/2023] Open
Abstract
Developing vascular networks that integrate with the host circulation and support cells engrafted within engineered tissues remains a key challenge in tissue engineering. Most previous work in this field has focused on developing new methods to build human vascular networks within engineered tissues prior to their implant in vivo, with substantively less attention paid to the role of the host in tissue vascularization and engraftment. Here, we assessed the role that different host animal models and anatomic implant locations play in vascularization and cardiomyocyte survival within engineered tissues. We found major differences in the formation of graft-derived blood vessels and survival of cardiomyocytes after implantation of identical tissues in immunodeficient athymic nude mice versus rats. Athymic mice supported robust guided vascularization of human microvessels carrying host blood but relatively sparse cardiac grafts within engineered tissues, regardless of implant site. Conversely, athymic rats produced substantive inflammatory changes that degraded grafts (abdomen) or disrupted vascular patterning (heart). Despite disrupted vascular patterning, athymic rats supported > 3-fold larger human cardiomyocyte grafts compared to athymic mice. This work demonstrates the critical importance of the host for vascularization and engraftment of engineered tissues, which has broad translational implications across regenerative medicine.
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Affiliation(s)
- Eileen L Brady
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
- Institute for Stem Cell and Regenerative Medicine, Seattle, WA, 98195, USA
| | - Olivia Prado
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
- Institute for Stem Cell and Regenerative Medicine, Seattle, WA, 98195, USA
| | - Fredrik Johansson
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
| | - Shannon N Mitchell
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
- Institute for Stem Cell and Regenerative Medicine, Seattle, WA, 98195, USA
| | - Amy M Martinson
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98195, USA
| | - Elaheh Karbassi
- Institute for Stem Cell and Regenerative Medicine, Seattle, WA, 98195, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98195, USA
| | - Hans Reinecke
- Institute for Stem Cell and Regenerative Medicine, Seattle, WA, 98195, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98195, USA
| | - Charles E Murry
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
- Institute for Stem Cell and Regenerative Medicine, Seattle, WA, 98195, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98195, USA
| | - Jennifer Davis
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
- Institute for Stem Cell and Regenerative Medicine, Seattle, WA, 98195, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98195, USA
| | - Kelly R Stevens
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA.
- Institute for Stem Cell and Regenerative Medicine, Seattle, WA, 98195, USA.
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA.
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98195, USA.
- Brotman Baty Institute, Seattle, WA, 98195, USA.
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6
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Inflammation-mediated matrix remodeling of extracellular matrix-mimicking biomaterials in tissue engineering and regenerative medicine. Acta Biomater 2022; 151:106-117. [PMID: 35970482 DOI: 10.1016/j.actbio.2022.08.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 06/30/2022] [Accepted: 08/08/2022] [Indexed: 12/12/2022]
Abstract
Extracellular matrix (ECM)-mimicking biomaterials are considered effective tissue-engineered scaffolds for regenerative medicine because of their biocompatibility, biodegradability, and bioactivity. ECM-mimicking biomaterials preserve natural microstructures and matrix-related bioactive components and undergo continuous matrix remodeling upon transplantation. The interaction between host immune cells and transplanted ECM-mimicking biomaterials has attracted considerable attention in recent years. Transplantation of biomaterials may initiate injuries and early pro-inflammation reactions characterized by infiltration of neutrophils and M1 macrophages. Pro-inflammation reactions may lead to degradation of the transplanted biomaterial and drive the matrix into a fetal-like state. ECM degradation leads to the release of matrix-related bioactive components that act as signals for cell migration, proliferation, and differentiation. In late stages, pro-inflammatory cells fade away, and anti-inflammatory cells emerge, which involves macrophage polarization to the M2 phenotype and leukocyte activation to T helper 2 (Th2) cells. These anti-inflammatory cells interact with each other to facilitate matrix deposition and tissue reconstruction. Deposited ECM molecules serve as vital components of the mature tissue and influence tissue homeostasis. However, dysregulation of matrix remodeling results in several pathological conditions, such as aggressive inflammation, difficult healing, and non-functional fibrosis. In this review, we summarize the characteristics of inflammatory responses in matrix remodeling after transplantation of ECM-mimicking biomaterials. Additionally, we discuss the intrinsic linkages between matrix remodeling and tissue regeneration. STATEMENT OF SIGNIFICANCE: Extracellular matrix (ECM)-mimicking biomaterials are effectively used as scaffolds in tissue engineering and regenerative medicine. However, dysregulation of matrix remodeling can cause various pathological conditions. Here, the review describes the characteristics of inflammatory responses in matrix remodeling after transplantation of ECM-mimicking biomaterials. Additionally, we discuss the intrinsic linkages between matrix remodeling and tissue regeneration. We believe that understanding host immune responses to matrix remodeling of transplanted biomaterials is important for directing effective tissue regeneration of ECM-mimicking biomaterials. Considering the close relationship between immune response and matrix remodeling results, we highlight the need for studies of the effects of clinical characteristics on matrix remodeling of transplanted biomaterials.
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7
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Hernandez JL, Woodrow KA. Medical Applications of Porous Biomaterials: Features of Porosity and Tissue-Specific Implications for Biocompatibility. Adv Healthc Mater 2022; 11:e2102087. [PMID: 35137550 PMCID: PMC9081257 DOI: 10.1002/adhm.202102087] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/17/2021] [Indexed: 12/14/2022]
Abstract
Porosity is an important material feature commonly employed in implants and tissue scaffolds. The presence of material voids permits the infiltration of cells, mechanical compliance, and outward diffusion of pharmaceutical agents. Various studies have confirmed that porosity indeed promotes favorable tissue responses, including minimal fibrous encapsulation during the foreign body reaction (FBR). However, increased biofilm formation and calcification is also described to arise due to biomaterial porosity. Additionally, the relevance of host responses like the FBR, infection, calcification, and thrombosis are dependent on tissue location and specific tissue microenvironment. In this review, the features of porous materials and the implications of porosity in the context of medical devices is discussed. Common methods to create porous materials are also discussed, as well as the parameters that are used to tune pore features. Responses toward porous biomaterials are also reviewed, including the various stages of the FBR, hemocompatibility, biofilm formation, and calcification. Finally, these host responses are considered in tissue specific locations including the subcutis, bone, cardiovascular system, brain, eye, and female reproductive tract. The effects of porosity across the various tissues of the body is highlighted and the need to consider the tissue context when engineering biomaterials is emphasized.
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Affiliation(s)
- Jamie L Hernandez
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA
| | - Kim A Woodrow
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA
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Capuani S, Malgir G, Chua CYX, Grattoni A. Advanced Strategies to Thwart Foreign Body Response to Implantable Devices. Bioeng Transl Med 2022; 7:e10300. [PMID: 36176611 PMCID: PMC9472022 DOI: 10.1002/btm2.10300] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 11/10/2022] Open
Abstract
Mitigating the foreign body response (FBR) to implantable medical devices (IMDs) is critical for successful long‐term clinical deployment. The FBR is an inevitable immunological reaction to IMDs, resulting in inflammation and subsequent fibrotic encapsulation. Excessive fibrosis may impair IMDs function, eventually necessitating retrieval or replacement for continued therapy. Therefore, understanding the implant design parameters and their degree of influence on FBR is pivotal to effective and long lasting IMDs. This review gives an overview of FBR as well as anti‐FBR strategies. Furthermore, we highlight recent advances in biomimetic approaches to resist FBR, focusing on their characteristics and potential biomedical applications.
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Affiliation(s)
- Simone Capuani
- Department of Nanomedicine Houston Methodist Research Institute Houston TX USA
- University of Chinese Academy of Science (UCAS) 19 Yuquan Road Beijing China
| | - Gulsah Malgir
- Department of Nanomedicine Houston Methodist Research Institute Houston TX USA
- Department of Biomedical Engineering University of Houston Houston TX USA
| | | | - Alessandro Grattoni
- Department of Nanomedicine Houston Methodist Research Institute Houston TX USA
- Department of Surgery Houston Methodist Hospital Houston TX USA
- Department of Radiation Oncology Houston Methodist Hospital Houston TX USA
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9
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Kambe Y, Yamaoka T. Initial immune response to a FRET-based MMP sensor-immobilized silk fibroin hydrogel in vivo. Acta Biomater 2021; 130:199-210. [PMID: 34087439 DOI: 10.1016/j.actbio.2021.05.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/20/2021] [Accepted: 05/20/2021] [Indexed: 12/26/2022]
Abstract
To investigate the initial immune response to biodegradable silk fibroin (SF) hydrogels in vivo, a Förster/fluorescence resonance energy transfer (FRET)-based sensor was developed to detect matrix metalloproteinase (MMP) activity (FRET-MMPS) and immobilized to SF hydrogel. FRET-MMPS immobilized to SF hydrogel in vitro displayed intra-molecular FRET more than inter-molecular FRET, and MMP activity was detected through a decrease in FRET signal intensity. Then, the SF hydrogel modified with FRET-MMPS was implanted into mice subcutaneously, and it was observed that the FRET signal intensity decreased significantly soon (< 3 h) after implantation. Although the intensity exhibited a sharp decrease toward 24 h post-implantation, histological evaluation proved that bulk-level hydrogel degradation, such as breakdown, was mainly caused by macrophages and foreign body giant cells on a timescale of weeks. These results indicated that, immediately upon implantation, active MMPs reached the SF hydrogel and began cleaving SF networks, which might result in the loosening of the networks and then enabled immune cells, such as macrophages, to start the bulk-level hydrogel degradation. The sensor clarified the initial immune response to SF hydrogels and will provide clues for designing the biodegradation behaviors of scaffolds for regenerative medicine. STATEMENT OF SIGNIFICANCE: Silk fibroin (SF) materials are degraded gradually by the immune response. Immune cells, such as macrophages, break down implanted SF materials on a timescale of weeks or months, but the initial (< 24 h) immune response to SF materials remains unclear. In this study, SF hydrogels modified with Förster/fluorescence resonance energy transfer (FRET)-based matrix metalloproteinase (MMP) sensors were implanted in mice and within 3 h post-implantation, the SF hydrogels were degraded by MMPs. Although this molecular-level biodegradation was not correlated with the hydrogel breakdown, the MMPs were likely to loosen the SF networks to enable immune cells to infiltrate and degrade the hydrogel. This is the first study to unveil the initial stage of immune response to biomaterials.
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Flegeau K, Gauthier O, Rethore G, Autrusseau F, Schaefer A, Lesoeur J, Veziers J, Brésin A, Gautier H, Weiss P. Injectable silanized hyaluronic acid hydrogel/biphasic calcium phosphate granule composites with improved handling and biodegradability promote bone regeneration in rabbits. Biomater Sci 2021; 9:5640-5651. [PMID: 34254604 DOI: 10.1039/d1bm00403d] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Biphasic calcium phosphate (BCP) granules are osteoconductive biomaterials used in clinics to favor bone reconstruction. Yet, poor cohesivity, injectability and mechanical properties restrain their use as bone fillers. In this study, we incorporated BCP granules into in situ forming silanized hyaluronic acid (Si-HA) and hydroxypropylmethylcellulose (Si-HPMC) hydrogels. Hydrogel composites were shown to be easily injectable (F < 30 N), with fast hardening properties (<5 min), and similar mechanical properties (E∼ 60 kPa). In vivo, both hydrogels were well tolerated by the host, but showed different biodegradability with Si-HA gels being partially degraded after 21d, while Si-HPMC gels remained stable. Both composites were easily injected into critical size rabbit defects and remained cohesive. After 4 weeks, Si-HPMC/BCP led to poor bone healing due to a lack of degradation. Conversely, Si-HA/BCP composites were fully degraded and beneficially influenced bone regeneration by increasing the space available for bone ingrowth, and by accelerating BCP granules turnover. Our study demonstrates that the degradation rate is key to control bone regeneration and that Si-HA/BCP composites are promising biomaterials to regenerate bone defects.
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Affiliation(s)
- Killian Flegeau
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and HTL S.A.S, Javené, France
| | - Olivier Gauthier
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and Department of Experimental Surgery, CRIP, Oniris, Nantes, F-44300, France
| | - Gildas Rethore
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and CHU Nantes, PHU4 OTONN, Nantes F-44093, France
| | - Florent Autrusseau
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and Ecole Polytechnique de l'Université de Nantes, rue Ch. Pauc, Nantes, F-44300, France
| | - Aurélie Schaefer
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and SC3M, SFR Santé F. Bonamy, FED 4203, UMS Inserm 016, CNRS 3556, Nantes F-44042, France
| | - Julie Lesoeur
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and SC3M, SFR Santé F. Bonamy, FED 4203, UMS Inserm 016, CNRS 3556, Nantes F-44042, France
| | - Joëlle Veziers
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and CHU Nantes, PHU4 OTONN, Nantes F-44093, France and SC3M, SFR Santé F. Bonamy, FED 4203, UMS Inserm 016, CNRS 3556, Nantes F-44042, France
| | | | - Hélène Gautier
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and Université de Nantes, Faculté de Pharmacie, Laboratoire de Pharmacie Galénique, Nantes F-44042, France
| | - Pierre Weiss
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and CHU Nantes, PHU4 OTONN, Nantes F-44093, France
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11
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Köhler R, Pohl C, Walschus U, Zippel R, Wilhelm L, Hoene A, Patrzyk M, Schlosser M. Association of systemic antibody response against polyethylene terephthalate with inflammatory serum cytokine profile following implantation of differently coated vascular prostheses in a rat animal model. J Biomed Mater Res A 2021; 110:52-63. [PMID: 34245083 DOI: 10.1002/jbm.a.37265] [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: 03/22/2021] [Revised: 06/23/2021] [Accepted: 06/29/2021] [Indexed: 11/09/2022]
Abstract
Experimental studies demonstrated antibodies against matrix and coating of polyester-based vascular prostheses. Thus, this study examined associations of these antibodies with serum cytokines (IL-2, IL-4, and IL-10) and local inflammatory reactions. Rats (n = 8/group) intramuscularly received prosthesis segments [PET-C, PET-G, and PET-A groups: polyethylene terephthalate (PET)-based prostheses coated with bovine collagen and gelatin or human serum albumin, respectively; uncoated polytetrafluoroethylene-based (PTFE) prosthesis], with sham-operated controls. Blood was drawn pre-operatively and weekly until day 22. Polymer-specific or coating-specific antibodies and cytokines were detected by enzyme immunoassays, inflammatory reactions were immunohistochemically evaluated on day 23. Polymer-specific antibodies were detected in all PET-groups using uncoated PET as antigenic target, but not for PTFE or controls, coating-specific antibodies only for PET-A. IL-10 was increased in all PET-groups and correlated with polymer-specific antibodies for PET-G and PET-A. IL-2 was increased for PET-A, but overall correlated with PET-specific antibodies. IL-4 remained unchanged in all groups. Intense local inflammatory reactions (ED1+ /ED2+ macrophages and T lymphocytes) were found within all PET-groups, but only minor for PTFE or controls. In conclusion, PET-specific antibodies were associated with increased IL-10 and along with concurrent coating-specific antibodies also with increased IL-2, indicating a specific T cell response. Thus, matrix and/or coating of polymeric vascular prostheses elicit distinct systemic immune reactions, probably influencing local inflammatory reactions.
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Affiliation(s)
- Ronny Köhler
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, Greifswald, Germany
| | - Christopher Pohl
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, Greifswald, Germany
| | - Uwe Walschus
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, Greifswald, Germany
| | - Roland Zippel
- Department of Surgery, Elbe-Elster Hospital, Herzberg, Germany
| | - Lutz Wilhelm
- Department of Surgery, Hospital Demmin, Demmin, Germany
| | - Andreas Hoene
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, Greifswald, Germany
| | - Maciej Patrzyk
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, Greifswald, Germany
| | - Michael Schlosser
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, Greifswald, Germany
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12
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Immunomodulatory biomaterials and their application in therapies for chronic inflammation-related diseases. Acta Biomater 2021; 123:1-30. [PMID: 33484912 DOI: 10.1016/j.actbio.2021.01.025] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/05/2020] [Accepted: 01/15/2021] [Indexed: 02/06/2023]
Abstract
The degree of tissue injuries such as the level of scarring or organ dysfunction, and the immune response against them primarily determine the outcome and speed of healing process. The successful regeneration of functional tissues requires proper modulation of inflammation-producing immune cells and bioactive factors existing in the damaged microenvironment. In the tissue repair and regeneration processes, different types of biomaterials are implanted either alone or by combined with other bioactive factors, which will interact with the immune systems including immune cells, cytokines and chemokines etc. to achieve different results highly depending on this interplay. In this review article, the influences of different types of biomaterials such as nanoparticles, hydrogels and scaffolds on the immune cells and the modification of immune-responsive factors such as reactive oxygen species (ROS), cytokines, chemokines, enzymes, and metalloproteinases in tissue microenvironment are summarized. In addition, the recent advances of immune-responsive biomaterials in therapy of inflammation-associated diseases such as myocardial infarction, spinal cord injury, osteoarthritis, inflammatory bowel disease and diabetic ulcer are discussed.
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13
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Rothe R, Xu Y, Thomas AK, Meister S, Zhang Y, Pietzsch J, Hauser S. A modular, injectable, non-covalently assembled hydrogel system features widescale tunable degradability for controlled release and tissue integration. Biomaterials 2020; 269:120637. [PMID: 33450583 DOI: 10.1016/j.biomaterials.2020.120637] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/23/2020] [Accepted: 12/27/2020] [Indexed: 12/25/2022]
Abstract
Biomaterials with attenuated adverse host tissue reactions, and meanwhile, combining biocompatibility with mimicry of mechanical and biochemical cues of native extracellular matrices (ECM) to promote integration and regeneration of tissues are important for many biomedical applications. Further, the materials should also be tailorable to feature desired application-related functions, like tunable degradability, injectability, or controlled release of bioactive molecules. Herein, a non-covalently assembled, injectable hydrogel system based on oligopeptides interacting with sulphated polysaccharides is reported, showing high tolerability and biocompatibility in immunocompetent hairless mice. Altering the peptide or polysaccharide component considerably varies the in vivo degradation rate of the hydrogels, ranging from a half-life of three weeks to no detectable degradation after three months. The hydrogel with sulphated low molecular weight hyaluronic acid exhibits sustained degradation-mediated release of heparin-binding molecules in vivo, as shown by small animal magnetic resonance imaging and fluorescence imaging, and enhances the expression of vascular endothelial growth factor in hydrogel surrounding. In vitro investigations indicate that M2-macrophages could be responsible for the moderate difference in pro-angiogenic effects. The ECM-mimetic and injectable hydrogels represent tunable bioactive scaffolds for tissue engineering, also enabling controlled release of heparin-binding signalling molecules including many growth factors.
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Affiliation(s)
- Rebecca Rothe
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Department of Radiopharmaceutical and Chemical Biology, Bautzner Landstraße 400, 01328, Dresden, Germany; Technische Universität Dresden, Faculty of Chemistry and Food Chemistry, School of Science, Mommsenstraße 66, 01062, Dresden, Germany
| | - Yong Xu
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, Tatzberg 41, 01307, Dresden, Germany
| | - Alvin Kuriakose Thomas
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, Tatzberg 41, 01307, Dresden, Germany
| | - Sebastian Meister
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Department of Radiopharmaceutical and Chemical Biology, Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Yixin Zhang
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, Tatzberg 41, 01307, Dresden, Germany.
| | - Jens Pietzsch
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Department of Radiopharmaceutical and Chemical Biology, Bautzner Landstraße 400, 01328, Dresden, Germany; Technische Universität Dresden, Faculty of Chemistry and Food Chemistry, School of Science, Mommsenstraße 66, 01062, Dresden, Germany.
| | - Sandra Hauser
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Department of Radiopharmaceutical and Chemical Biology, Bautzner Landstraße 400, 01328, Dresden, Germany.
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14
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Neto AMD, Sartoretto SC, Duarte IM, Resende RFDB, Neves Novellino Alves AT, Mourão CFDAB, Calasans-Maia J, Montemezzi P, Tristão GC, Calasans-Maia MD. In Vivo Comparative Evaluation of Biocompatibility and Biodegradation of Bovine and Porcine Collagen Membranes. MEMBRANES 2020; 10:membranes10120423. [PMID: 33333940 PMCID: PMC7765348 DOI: 10.3390/membranes10120423] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 02/07/2023]
Abstract
Mechanical barriers prevent the invasion of the surrounding soft tissues within the bone defects. This concept is known as Guided Bone Regeneration (GBR). The knowledge about the local tissue reaction and the time of degradation of absorbable membranes favors the correct clinical indication. This study aimed to evaluate the biocompatibility and biodegradation of a bovine collagen membrane (Lyostypt®, São Gonçalo, Brazil) and compare it to a porcine collagen membrane (Bio-Gide®) implanted in the subcutaneous tissue of mice, following ISO 10993-6:2016. Thirty Balb-C mice were randomly divided into three experimental groups, LT (Lyostypt®), BG (Bio-Gide®), and Sham (without implantation), and subdivided according to the experimental periods (7, 21, and 63 days). The BG was considered non-irritant at seven days and slight and moderate irritant at 21 and 63 days, respectively. The LT presented a small irritant reaction at seven days, a mild reaction after 21, and a reduction in the inflammatory response at 63 days. The biodegradation of the LT occurred more rapidly compared to the BG after 63 days. This study concluded that both membranes were considered biocompatible since their tissue reactions were compatible with the physiological inflammatory process; however, the Bio-Gide® was less degraded during the experimental periods, favoring the guided bone regeneration process.
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Affiliation(s)
- Abdu Mansur Dacache Neto
- Graduate Program, Dentistry School, Universidade Federal Fluminense, Niteroi 24020-140, RJ, Brazil;
| | - Suelen Cristina Sartoretto
- Oral Surgery Department, Dentistry School, Universidade Veiga de Almeida, Rio de Janeiro 20271-020, RJ, Brazil;
- Oral Surgery Department, Dentistry School, Universidade Iguaçu, Nova Iguaçu 26260-045, RJ, Brazil;
- Clinical Research Laboratory in Dentistry, Universidade Federal Fluminense, Niteroi 24020-140, RJ, Brazil
| | - Isabelle Martins Duarte
- Post-Graduation Program in Dentistry, Universidade Veiga de Almeida, Rio de Janeiro 20271-020, RJ, Brazil;
| | - Rodrigo Figueiredo de Brito Resende
- Oral Surgery Department, Dentistry School, Universidade Iguaçu, Nova Iguaçu 26260-045, RJ, Brazil;
- Oral Surgery Department, Universidade Federal Fluminense, Niteroi 24020-140, RJ, Brazil
| | | | | | - Jose Calasans-Maia
- Orthodontics Department, Universidade Federal Fluminense, Niteroi 24020-140, RJ, Brazil;
| | | | | | - Mônica Diuana Calasans-Maia
- Clinical Research Laboratory in Dentistry, Universidade Federal Fluminense, Niteroi 24020-140, RJ, Brazil
- Oral Surgery Department, Universidade Federal Fluminense, Niteroi 24020-140, RJ, Brazil
- Correspondence: ; Tel.: +55-21-98153-5884
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15
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Hachim D, LoPresti ST, Rege RD, Umeda Y, Iftikhar A, Nolfi AL, Skillen CD, Brown BN. Distinct macrophage populations and phenotypes associated with IL-4 mediated immunomodulation at the host implant interface. Biomater Sci 2020; 8:5751-5762. [PMID: 32945303 PMCID: PMC7641101 DOI: 10.1039/d0bm00568a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The host macrophage response to implants has shown to be affected by tissue location and physio-pathological conditions of the patient. Success in immunomodulatory strategies is thus predicated on the proper understanding of the macrophage populations participating on each one of these contexts. The present study uses an in vivo implantation model to analyze how immunomodulation via an IL-4 eluting implant affects distinct macrophage populations at the tissue-implant interface and how this may affect downstream regenerative processes. Populations identified as F4/80+, CD68+ and CD11b+ macrophages at the peri-implant space showed distinct susceptibility to polarize towards an M2-like phenotype under the effects of delivered IL-4. Also, the presence of the coating resulted in a significant reduction in F4/80+ macrophages, while other populations remained unchanged. These results suggests that the F4/80+ macrophage population may be predominant in the early stages of the host response at the surface of these implants, in contrast to CD11b+ macrophage populations which were either fewer in number or located more distant from the implant surface. Gene expression assays showed increased proteolytic activity and diminished matrix deposition as possible mechanisms explaining the decreased fibrotic capsule deposition and improved peri-implant tissue quality shown in previous studies using IL-4 eluting coatings. The pattern of M2-like gene expression promoted by IL-4 was correlated with glycosaminoglycan production within the site of implantation at early stages of the host response, suggesting a significant role in this response. These findings demonstrate that immunomodulatory strategies can be utilized to design and implement targeted delivery for improving biomaterial performance.
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Affiliation(s)
- Daniel Hachim
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, USA.
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16
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Fang J, Liu R, Chen S, Liu Q, Cai H, Lin Y, Chen Z, Chen Z. Tuning the immune reaction to manipulate the cell-mediated degradation of a collagen barrier membrane. Acta Biomater 2020; 109:95-108. [PMID: 32268238 DOI: 10.1016/j.actbio.2020.03.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/08/2020] [Accepted: 03/27/2020] [Indexed: 02/07/2023]
Abstract
In order to elicit a desired barrier function in guided bone regeneration (GBR) or guided tissue regeneration (GTR), a barrier membrane has to maintain its integrity for a certain period of time to guarantee the regeneration of target tissue. Due to the complexity and variety of clinical conditions, the healing time required for tissue regeneration varies from one case to another, which implies the need for tailoring the barrier membranes to diverse conditions via manipulating their degradation property. As a "non-self" biomaterial, a barrier membrane will inevitably trigger host-membrane immune response after implantation, which entails the activation of phagocytic cells. In the degradation process of a barrier membrane, the cell-mediated degradation may play a more vital role than enzymatic and physicochemical dissolution; however, limited studies have been carried out on this topic. In this context, we investigated the cell-mediated degradation and illustrated the possible key cells and mediators for immunomodulation via in vivo and in vitro studies. We discovered that IL-13, a key cytokine mainly released by T helper 2 cells (Th2), induced the formation of foreign body giant cells (FBGCs), thus resulting in membrane degradation. Neutralizing IL-13 could suppress membrane degradation and formation of FBGC. The contributions of this study are (1) unveiling the immune mechanisms underlying the cell-mediated collagen membrane degradation; (2) allowing the formation of an "immunodegradation" strategy to develop an "immune-smart" barrier membrane to manipulate its degradation; (3) providing the key regulatory immune cells and cytokines for the immunomodulation target in collagen membrane degradation. STATEMENT OF SIGNIFICANCE: The significance of this research includes.
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17
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Brady EL, Kirby MA, Olszewski E, Grosjean P, Johansson F, Davis J, Wang RK, Stevens KR. Guided vascularization in the rat heart leads to transient vessel patterning. APL Bioeng 2020; 4:016105. [PMID: 32161835 PMCID: PMC7058427 DOI: 10.1063/1.5122804] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 02/10/2020] [Indexed: 12/29/2022] Open
Abstract
Recent progress in the production and maturation of iPSC-cardiomyocytes has facilitated major advances in building bioartificial heart tissue with functional cardiomyocytes. Despite this progress, vascularizing these constructs continues to be a barrier to clinical application. One emerging strategy for vascularization uses aligned "cords" of endothelial cells in tissue grafts to guide assembly of chimeric microvessels upon graft implantation. Here, we test whether this approach can guide vascularization of a bioartificial tissue implanted on the rat heart. We find that patterned cords of human endothelial cells anastomose and become perfused with host blood by 3 days post-implantation. Immunohistochemical staining confirmed that graft-derived micro-vessels persist in the patch for 7 days. Furthermore, we noted a shift in distribution of vessels in the patch from patterned cord-associated clustering at 3 days to a more diffuse distribution pattern at 7 days. This loss of patterning corresponded to an infiltration of CD68+ cells and an increase in collagen within the patch. Upon further engraftment of patches containing both cords and human cardiomyocytes, we identified human cardiomyocytes and graft derived vasculature at the time of explant. Our findings show that patterned endothelial cords guide transient vessel patterning on the rat heart. Our results also suggest that future work should be directed at further adapting vascularization strategies to the epicardial environment and add to an important emerging dialog in cardiac cell therapy that points to the need to characterize host response prior to or in parallel with efficacy studies.
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Affiliation(s)
| | - Mitchell A. Kirby
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, USA
| | | | - Parker Grosjean
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, USA
| | - Fredrik Johansson
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, USA
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18
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An in vitro model mimics the contact of biomaterials to blood components and the reaction of surrounding soft tissue. Acta Biomater 2019; 89:227-241. [PMID: 30880238 DOI: 10.1016/j.actbio.2019.03.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 02/20/2019] [Accepted: 03/13/2019] [Indexed: 12/21/2022]
Abstract
The therapeutic efficacy of a medical product after implantation depends strongly on the host-initiated fibrotic response (foreign body reaction). For novel biomaterials, it is of high relevance to understand this fibrotic process. As an alternative to in vivo studies, in vitro models mimic parts of the whole foreign body reaction. Aim of this study was to develop a wound model with key cells and matrix proteins in coculture. This approach combined blood components such as primary macrophages in a plasma-derived fibrin hydrogel, directly exposed to reference biomaterials (PTFE, glass, titanium). The soft tissue reaction is resembled by integrating fibroblasts in a collagen or a fibrin matrix. Those two experimental setups were conducted to show whether a long-term in vitro culture of 13 days is feasible. The response to reference biomaterials was assessed by multi-parametric analyses, comprising molecular profiling (cytokines, collagen I and ß-actin) and tissue remodeling (cell adherence, histological structure, tissue deposition). Polytetrafluorethylene (PTFE) and titanium were tested as references to correlate the in vitro evaluation to previous in vivo studies. Most striking, both model setups evaluated references' fibrotic characteristics as previously reported by in vivo studies. STATEMENT OF SIGNIFICANCE: We present a test platform applied for assessments on the foreign body reaction to biomaterials. This test system consists of blood components - macrophages and plasma-derived fibrin - as well as fibroblasts and collagen, generating a three-dimensional wound microenvironment. By this modular approach, we achieved a suitable test for long-term studies and overcame the limited short-term stability of whole blood tests. In contrast to previous models, macrophages' viability is maintained during the extended culture period and excels the quality of the model. The potential to evaluate a foreign body reaction in vitro was demonstrated with defined reference materials. This model system might be of high potential as a screening platform to identify novel biomaterial candidates.
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19
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Lih E, Park W, Park KW, Chun SY, Kim H, Joung YK, Kwon TG, Hubbell JA, Han DK. A Bioinspired Scaffold with Anti-Inflammatory Magnesium Hydroxide and Decellularized Extracellular Matrix for Renal Tissue Regeneration. ACS CENTRAL SCIENCE 2019; 5:458-467. [PMID: 30937373 PMCID: PMC6439446 DOI: 10.1021/acscentsci.8b00812] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Indexed: 05/23/2023]
Abstract
Kidney diseases are a worldwide public health issue. Renal tissue regeneration using functional scaffolds with biomaterials has attracted a great deal of attention due to limited donor organ availability. Here, we developed a bioinspired scaffold that can efficiently induce renal tissue regeneration. The bioinspired scaffold was designed with poly(lactide-co-glycolide) (PLGA), magnesium hydroxide (Mg(OH)2), and decellularized renal extracellular matrix (ECM). The Mg(OH)2 inhibited materials-induced inflammatory reactions by neutralizing the acidic microenvironment formed by degradation products of PLGA, and the acellular ECM helped restore the biological function of kidney tissues. When the PLGA/ECM/Mg(OH)2 scaffold was implanted in a partially nephrectomized mouse model, it led to the regeneration of renal glomerular tissue with a low inflammatory response. Finally, the PLGA/ECM/Mg(OH)2 scaffold was able to restore renal function more effectively than the control groups. These results suggest that the bioinspired scaffold can be used as an advanced scaffold platform for renal disease treatment.
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Affiliation(s)
- Eugene Lih
- Center
for Biomaterials, Korea Institute of Science
and Technology, Seoul 02792, Republic of Korea
| | - Wooram Park
- Department
of Biomedical Science, College of Life Sciences, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam, Gyeonggi 13488, Republic of Korea
| | - Ki Wan Park
- Center
for Biomaterials, Korea Institute of Science
and Technology, Seoul 02792, Republic of Korea
- Department
of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Republic of Korea
| | - So Young Chun
- BioMedical
Research Institute, Kyungpook National University
Hospital, Daegu 41944, Republic of Korea
| | - Hyuncheol Kim
- Department
of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Republic of Korea
| | - Yoon Ki Joung
- Center
for Biomaterials, Korea Institute of Science
and Technology, Seoul 02792, Republic of Korea
| | - Tae Gyun Kwon
- Department
of Urology, School of Medicine, Kyungpook
National University, Daegu 37224, Republic of Korea
| | - Jeffrey A. Hubbell
- Institute
for Molecular Engineering, University of
Chicago, Chicago, Illinois 60637, United States
| | - Dong Keun Han
- Department
of Biomedical Science, College of Life Sciences, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam, Gyeonggi 13488, Republic of Korea
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20
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Jannasch M, Gaetzner S, Weigel T, Walles H, Schmitz T, Hansmann J. A comparative multi-parametric in vitro model identifies the power of test conditions to predict the fibrotic tendency of a biomaterial. Sci Rep 2017; 7:1689. [PMID: 28490729 PMCID: PMC5431855 DOI: 10.1038/s41598-017-01584-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 03/31/2017] [Indexed: 01/19/2023] Open
Abstract
Despite growing effort to advance materials towards a low fibrotic progression, all implants elicit adverse tissue responses. Pre-clinical biomaterial assessment relies on animals testing, which can be complemented by in vitro tests to address the Russell and Burch’s 3R aspect of reducing animal burden. However, a poor correlation between in vitro and in vivo biomaterial assessments confirms a need for suitable in vitro biomaterial tests. The aim of the study was to identify a test setting, which is predictive and might be time- and cost-efficient. We demonstrated how sensitive in vitro biomaterial assessment based on human primary macrophages depends on test conditions. Moreover, possible clinical scenarios such as lipopolysaccharide contamination, contact to autologous blood plasma, and presence of IL-4 in an immune niche influence the outcome of a biomaterial ranking. Nevertheless, by using glass, titanium, polytetrafluorethylene, silicone, and polyethylene representing a specific material-induced fibrotic response and by comparison to literature data, we were able to identify a test condition that provides a high correlation to state-of-the-art in vivo studies. Most important, biomaterial ranking obtained under native plasma test conditions showed a high predictive accuracy compared to in vivo assessments, strengthening a biomimetic three-dimensional in vitro test platform.
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Affiliation(s)
- Maren Jannasch
- University Hospital Wuerzburg, Department Tissue Engineering and Regenerative Medicine (TERM), Roentgenring 11, 97070, Wuerzburg, Germany
| | - Sabine Gaetzner
- University Hospital Wuerzburg, Department Tissue Engineering and Regenerative Medicine (TERM), Roentgenring 11, 97070, Wuerzburg, Germany
| | - Tobias Weigel
- University Hospital Wuerzburg, Department Tissue Engineering and Regenerative Medicine (TERM), Roentgenring 11, 97070, Wuerzburg, Germany
| | - Heike Walles
- University Hospital Wuerzburg, Department Tissue Engineering and Regenerative Medicine (TERM), Roentgenring 11, 97070, Wuerzburg, Germany.,Fraunhofer Institute for Interfacial Engineering and Biotechnology, Translational Center Wuerzburg Regenerative Therapies in Oncology and Musculoskeletal Disease, 97070, Wuerzburg, Germany
| | - Tobias Schmitz
- University Hospital Wuerzburg, Department Tissue Engineering and Regenerative Medicine (TERM), Roentgenring 11, 97070, Wuerzburg, Germany
| | - Jan Hansmann
- University Hospital Wuerzburg, Department Tissue Engineering and Regenerative Medicine (TERM), Roentgenring 11, 97070, Wuerzburg, Germany. .,Fraunhofer Institute for Interfacial Engineering and Biotechnology, Translational Center Wuerzburg Regenerative Therapies in Oncology and Musculoskeletal Disease, 97070, Wuerzburg, Germany.
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21
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Morris AH, Stamer DK, Kyriakides TR. The host response to naturally-derived extracellular matrix biomaterials. Semin Immunol 2017; 29:72-91. [PMID: 28274693 DOI: 10.1016/j.smim.2017.01.002] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 01/20/2017] [Accepted: 01/31/2017] [Indexed: 12/13/2022]
Abstract
Biomaterials based on natural materials including decellularized tissues and tissue-derived hydrogels are becoming more widely used for clinical applications. Because of their native composition and structure, these biomaterials induce a distinct form of the foreign body response that differs from that of non-native biomaterials. Differences include direct interactions with cells via preserved moieties as well as the ability to undergo remodeling. Moreover, these biomaterials could elicit adaptive immune responses due to the presence of modified native molecules. Therefore, these biomaterials present unique challenges in terms of understanding the progression of the foreign body response. This review covers this response to natural materials including natural polymers, decellularized tissues, cell-derived matrix, tissue derived hydrogels, and biohybrid materials. With the expansion of the fields of regenerative medicine and tissue engineering, the current repertoire of biomaterials has also expanded and requires continuous investigation of the responses they elicit.
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Affiliation(s)
- Aaron H Morris
- Department of Biomedical Engineering, Yale University, New Haven, CT, United States; Vascular Biology and Therapeutics Program, Yale University, New Haven, CT, United States
| | - D K Stamer
- Department of Biomedical Engineering, Yale University, New Haven, CT, United States
| | - T R Kyriakides
- Department of Biomedical Engineering, Yale University, New Haven, CT, United States; Department of Pathology, Yale University, New Haven, CT, United States; Vascular Biology and Therapeutics Program, Yale University, New Haven, CT, United States.
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22
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Bank RA, Zandstra J, Room H, Petersen AH, van Putten SM. Biomaterial Encapsulation Is Enhanced in the Early Stages of the Foreign Body Reaction During Conditional Macrophage Depletion in Transgenic Macrophage Fas-Induced Apoptosis Mice<sup/>. Tissue Eng Part A 2017; 23:1078-1087. [PMID: 28090808 DOI: 10.1089/ten.tea.2016.0499] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Macrophages are pivotal cells during the foreign body reaction (FBR), as they orchestrate the proinflammatory microenvironment inside and around biomaterials by secretion of inflammatory mediators. Furthermore, they are responsible for the degradation of biomaterials and are thought to instruct the fibroblasts that generate a fibrous capsule around implanted biomaterials. In this study, we investigated the events during the FBR when macrophages are not present. Hexamethylenediisocyanate crosslinked collagen scaffolds were implanted in "Macrophage Fas-Induced Apoptosis" mice, which allow "on demand" macrophage depletion. We observed that macrophage depletion completely inhibited inflammatory ingrowth into the scaffolds and resulted in an increased capsule size. Quantitative polymerase chain reaction analysis revealed decreased expression levels of proinflammatory mediators such as TNFα and IL1β, and increased expression levels of collagens and fibroblast-stimulating growth factors such as EGF, FGF1, FGF2, and TGFα. Our results indicate that macrophages are indeed crucial for the generation of a proinflammatory microenvironment inside implanted biomaterials, leading to inflammatory ingrowth. In contrast, macrophages do not appear to be important for the generation of a fibrous capsule around implanted biomaterials. In fact, our data suggest that the macrophages present in the capsule might instruct the surrounding fibroblasts to produce less fibroblast-stimulating factors and less collagens.
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Affiliation(s)
- Ruud A Bank
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen , Groningen, The Netherlands
| | - Jurjen Zandstra
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen , Groningen, The Netherlands
| | - Hilde Room
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen , Groningen, The Netherlands
| | - Arjen H Petersen
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen , Groningen, The Netherlands
| | - Sander M van Putten
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen , Groningen, The Netherlands
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23
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Smeets R, Knabe C, Kolk A, Rheinnecker M, Gröbe A, Heiland M, Zehbe R, Sachse M, Große-Siestrup C, Wöltje M, Hanken H. Novel silk protein barrier membranes for guided bone regeneration. J Biomed Mater Res B Appl Biomater 2016; 105:2603-2611. [DOI: 10.1002/jbm.b.33795] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 08/30/2016] [Accepted: 09/12/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Ralf Smeets
- Department of Oral and Maxillofacial Surgery; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Christine Knabe
- Department of Experimental Orofacial Medicine; Philipps University Marburg; Marburg Germany
| | - Andreas Kolk
- Department of Oral- and Cranio-Maxillofacial Surgery; Klinikum rechts der Isar der Technischen Universität München; Munich Germany
| | | | - Alexander Gröbe
- Department of Oral and Maxillofacial Surgery; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Max Heiland
- Department of Oral and Maxillofacial Surgery; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | | | - Manuela Sachse
- Department of Experimental Orofacial Medicine; Philipps University Marburg; Marburg Germany
| | | | - Michael Wöltje
- Institute of Textile Machinery and High Performance Material Technology, Technische Universität Dresden; 01069 Dresden Germany
| | - Henning Hanken
- Department of Oral and Maxillofacial Surgery; University Medical Center Hamburg-Eppendorf; Hamburg Germany
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24
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Amer LD, Bryant SJ. The In Vitro and In Vivo Response to MMP-Sensitive Poly(Ethylene Glycol) Hydrogels. Ann Biomed Eng 2016; 44:1959-69. [PMID: 27080375 PMCID: PMC5577801 DOI: 10.1007/s10439-016-1608-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 04/02/2016] [Indexed: 12/28/2022]
Abstract
Enzyme-sensitive hydrogels are a promising class of materials for cell encapsulation and tissue engineering because their ability to be degraded by cell-secreted factors. However, it is well known that nearly all synthetic biomaterials elicit a foreign body response (FBR) upon implantation. Therefore, this study aimed to evaluate the in vitro and in vivo response to an enzyme-sensitive hydrogel. Hydrogels were formed from poly(ethylene glycol) with the peptide crosslinker, C-VPLS↓LYSG-C, which is susceptible to matrix metalloproteinases 2 and 9. We evaluated the hydrogel by exogenously delivered enzymes, encapsulated mesenchymal stem cells as a tissue engineering relevant cell type, and by macrophage-secreted factors in vitro and for the FBR through macrophage attachment in vitro and in a subcutaneous mouse model. These hydrogels rapidly degraded upon exposure to exogenous MMP-2 and to lesser degree with MMP-9. Encapsulated mesenchymal stem cells were capable of degrading the hydrogels via matrix metalloproteinases. Inflammatory macrophages were confirmed to attach to the hydrogels, but were not capable of rapidly degrading the hydrogels. In vivo, these hydrogels remained intact after 4 weeks and exhibited a classic FBR with inflammatory cells at the hydrogel surface and a fibrous capsule. In summary, these findings suggest that while this MMP-2/9 sensitive hydrogel is readily degraded in vitro, it does not undergo rapid degradation by the FBR. Thus, the long term stability of these hydrogels in vivo coupled with the ability for encapsulated cells to degrade the hydrogel makes them promising materials for tissue engineering.
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Affiliation(s)
- Luke D Amer
- Department of Chemical and Biological Engineering, University of Colorado, 3415 Colorado Ave, UCB 596, Boulder, CO, 80303, USA
- BioFrontiers Institute, University of Colorado, 3415 Colorado Avenue, Boulder, CO, 80303, USA
| | - Stephanie J Bryant
- Department of Chemical and Biological Engineering, University of Colorado, 3415 Colorado Ave, UCB 596, Boulder, CO, 80303, USA.
- BioFrontiers Institute, University of Colorado, 3415 Colorado Avenue, Boulder, CO, 80303, USA.
- Material Science and Engineering Program, University of Colorado, 3415 Colorado Avenue, Boulder, CO, 80303, USA.
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25
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Christo SN, Bachhuka A, Diener KR, Mierczynska A, Hayball JD, Vasilev K. The Role of Surface Nanotopography and Chemistry on Primary Neutrophil and Macrophage Cellular Responses. Adv Healthc Mater 2016; 5:956-65. [PMID: 26845244 DOI: 10.1002/adhm.201500845] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 11/24/2015] [Indexed: 01/26/2023]
Abstract
Synthetic materials employed for enhancing, replacing, or restoring biological functionality may be compromised by the host immune responses that they evoke. Surface modification has attracted substantial attention as a tool to modulate the host response to synthetic materials; however, how surface nanotopography combined with chemistry affects immune effector cell responses is still poorly understood. To address this open question, a unique set of model surfaces with controlled surface nanotopography in the range of 16, 38, and 68 nm has been generated. Tailored outermost surface chemistry that was amine, carboxyl, or methyl group rich has been provided. The combinations of these properties yield 12 surface types that are subject to functional assays assessing key immune effector cells, namely, primary neutrophil and macrophage responses in vitro. The data demonstrate that surface nanotopography leads to enhanced matrix metalloproteinase-9 production from primary neutrophils, and a decrease in pro-inflammatory cytokine secretion from primary macrophages. Together, these results are the first to directly compare the immunomodulatory effects of the cooperative interplay between surface nanotopography and chemistry.
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Affiliation(s)
- Susan N. Christo
- Experimental Therapeutics Laboratory; Sansom Institute and Hanson Institute; School of Pharmacy and Medical Science; University of South Australia; Adelaide SA 5000 Australia
| | - Akash Bachhuka
- Mawson Institute; University of South Australia; Adelaide SA 5095 Australia
| | - Kerrilyn R. Diener
- Experimental Therapeutics Laboratory; Sansom Institute and Hanson Institute; School of Pharmacy and Medical Science; University of South Australia; Adelaide SA 5000 Australia
- Research Institute; School of Paediatrics and Reproductive Health; University of Adelaide; Adelaide SA 5005 Australia
- Robinson Research Institute; Discipline of Obstetrics and Gynecology; School of Medicine; University of Adelaide; SA 5005 Australia
| | | | - John D. Hayball
- Experimental Therapeutics Laboratory; Sansom Institute and Hanson Institute; School of Pharmacy and Medical Science; University of South Australia; Adelaide SA 5000 Australia
- Research Institute; School of Paediatrics and Reproductive Health; University of Adelaide; Adelaide SA 5005 Australia
- Robinson Research Institute; Discipline of Obstetrics and Gynecology; School of Medicine; University of Adelaide; SA 5005 Australia
- School of Medicine; University of Adelaide; Adelaide SA 5005 Australia
| | - Krasimir Vasilev
- Mawson Institute; University of South Australia; Adelaide SA 5095 Australia
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26
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Li X, Wang Z, Zhao T, Yu B, Fan Y, Feng Q, Cui FZ, Watari F. A novel method to in vitro evaluate biocompatibility of nanoscaled scaffolds. J Biomed Mater Res A 2016; 104:2117-25. [PMID: 27087116 DOI: 10.1002/jbm.a.35743] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 04/02/2016] [Accepted: 04/06/2016] [Indexed: 12/31/2022]
Abstract
This study provided a new method to in vitro evaluate the biocompatibility of nanoscaled scaffolds for tissue engineering with neutrophils other than ordinary cell culture. The neutrophils were separated from human peripheral blood of healthy subjects. In vitro degradation product of nanohydroxyapatite/collagen (nHAC), nanohydroxyapatite/collagen/poly (L-lactic acid) (nHACP), and nHACP reinforced by chitin fibers (nHACP/CF) in the D-Hank's Balanced Salt Solution (D-HBSS) was used as the testing solution, which was thereafter mixed with the neutrophils. It was shown that the cell survival rate in the testing solutions had no significant difference from that in the D-HBSS (control). However, from both gene and protein expression levels, the lactate dehydrogenase and tumor necrosis factor-alpha of the neutrophils in the nHACP/CF testing solution were found lowest during the whole testing period; the main reasons of which might be that the calcium release rate of the scaffold was slowest and that the pH value of its degradation solution was nearest to that of human body. Moreover, in vivo experiments showed that most inflammation reactions happened for nHAC and poly (L-lactic acid) groups, while the least inflammation reactions happened for nHACP/CF group in the subcutaneous dorsum of mice at 2 weeks after the surgery, which confirmed the in vitro findings. These results indicated that the pH value and the certain metal iron concentration of the nanoscaled scaffold degradation solution should be two important factors that significantly affect its biocompatibility. This study provides a simple and effective biocompatibility test method for biodegradable nanoscaled tissue engineering scaffolds. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 2117-2125, 2016.
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Affiliation(s)
- Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, People's Republic of China
| | - Zheng Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, People's Republic of China
| | - Tianxiao Zhao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, People's Republic of China
| | - Bo Yu
- Department of Orthopedics, Zhujiang Hospital of Southern Medical University, Guangzhou, People's Republic of China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, People's Republic of China
| | - Qingling Feng
- Key Laboratory of Advanced Materials of Ministry of Education of China, Tsinghua University, Beijing, People's Republic of China
| | - Fu-Zhai Cui
- Key Laboratory of Advanced Materials of Ministry of Education of China, Tsinghua University, Beijing, People's Republic of China
| | - Fumio Watari
- Department of Biomedical Materials and Engineering, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
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27
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An Y, wei W, Jing H, Ming L, Liu S, Jin Y. Bone marrow mesenchymal stem cell aggregate: an optimal cell therapy for full-layer cutaneous wound vascularization and regeneration. Sci Rep 2015; 5:17036. [PMID: 26594024 PMCID: PMC4655471 DOI: 10.1038/srep17036] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 08/26/2015] [Indexed: 12/13/2022] Open
Abstract
Cutaneous wounds are among the most common soft tissue injuries. Wounds involving dermis suffer more from outside influence and higher risk of chronic inflammation. Therefore the appearance and function restoration has become an imperative in tissue engineering research. In this study, cell-aggregates constructed with green fluorescent protein-expressing (GFP+) rat bone marrow mesenchymal stem cells (BMMSCs) were applied to rat acute full-layer cutaneous wound model to confirm its pro-regeneration ability and compare its regenerative efficacy with the currently thriving subcutaneous and intravenous stem cell administration strategy, with a view to sensing the advantages, disadvantages and the mechanism behind. According to results, cell-aggregates cultured in vitro enjoyed higher expression of several pro-healing genes than adherent cultured cells. Animal experiments showed better vascularization along with more regular dermal collagen deposition for cell-aggregate transplanted models. Immunofluorescence staining on inflammatory cells indicated a shorter inflammatory phase for cell-aggregate group, which was backed up by further RT-PCR. The in situ immunofluorescence staining manifested a higher GFP+-cell engraftment for cell-aggregate transplanted models versus cell administered ones. Thus it is safe to say the BMMSCs aggregate could bring superior cutaneous regeneration for full layer cutaneous wound to BMMSCs administration, both intravenous and subcutaneous.
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Affiliation(s)
- Yulin An
- State Key Laboratory of Military Stomatology, Center of Tissue Engineering, School of Stomatology, The Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China.,Research and Development Center for Tissue Engineering, Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China.,Zhen Jiang Entry-Exit Inspection And Quarantine Bureau, No. 84 Dongwu Road, Zhen Jiang, Jiang Su 212000, China
| | - Wei wei
- State Key Laboratory of Military Stomatology, Center of Tissue Engineering, School of Stomatology, The Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China.,Research and Development Center for Tissue Engineering, Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China.,State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, The Fourth Military Medical University, No. 145 Changlexi Road, Xi'an 710032, China
| | - Huan Jing
- State Key Laboratory of Military Stomatology, Center of Tissue Engineering, School of Stomatology, The Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China.,Research and Development Center for Tissue Engineering, Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China
| | - Leiguo Ming
- State Key Laboratory of Military Stomatology, Center of Tissue Engineering, School of Stomatology, The Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China.,Research and Development Center for Tissue Engineering, Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China
| | - Shiyu Liu
- State Key Laboratory of Military Stomatology, Center of Tissue Engineering, School of Stomatology, The Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China.,Research and Development Center for Tissue Engineering, Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China
| | - Yan Jin
- State Key Laboratory of Military Stomatology, Center of Tissue Engineering, School of Stomatology, The Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China.,Research and Development Center for Tissue Engineering, Fourth Military Medical University, No. 145 Changlexi Road, Xi'an, Shaanxi 710032, China
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28
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Browne S, Monaghan MG, Brauchle E, Berrio DC, Chantepie S, Papy-Garcia D, Schenke-Layland K, Pandit A. Modulation of inflammation and angiogenesis and changes in ECM GAG-activity via dual delivery of nucleic acids. Biomaterials 2015; 69:133-47. [DOI: 10.1016/j.biomaterials.2015.08.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 08/04/2015] [Accepted: 08/05/2015] [Indexed: 12/15/2022]
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29
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Van Hove AH, Antonienko E, Burke K, Brown E, Benoit DS. Temporally tunable, enzymatically responsive delivery of proangiogenic peptides from poly(ethylene glycol) hydrogels. Adv Healthc Mater 2015; 4:2002-11. [PMID: 26149620 PMCID: PMC4696931 DOI: 10.1002/adhm.201500304] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 06/10/2015] [Indexed: 12/22/2022]
Abstract
Proangiogenic drugs hold great potential to promote reperfusion of ischemic tissues and in tissue engineering applications, but efficacy is limited by poor targeting and short half-lives. Methods to control release duration or provide enzymatically responsive drug delivery have independently improved drug efficacy. However, no material has been developed to temporally control the rate of enzymatically responsive drug release. To address this void, hydrogels are developed to provide sustained, tunable release of Qk, a proangiogenic peptide mimic of vascular endothelial growth factor, via tissue-specific enzymatic activity. After confirmation that sustained delivery of Qk is necessary for proangiogenic effects, a variety of previously identified matrix metalloproteinase (MMP)-degradable linkers are used to tether Qk to hydrogels. Of these, three (IPES↓LRAG, GPQG↓IWGQ, and VPLS↓LYSG) show MMP-responsive peptide release. These linkers provide tunable Qk release kinetics, with rates ranging from 1.64 to 19.9 × 10(-3) h(-1) in vitro and 4.82 to 8.94 × 10(-3) h(-1) in vivo. While Qk is confirmed to be bioactive as released, hydrogels releasing Qk fail to induce significant vascularization in vivo after one week, likely due to the use of nonenzymatically degradable hydrogels. While Qk is the focus of this study, the approach could easily be adapted to control the delivery of a variety of therapeutic molecules.
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Affiliation(s)
- Amy H. Van Hove
- Department of Biomedical Engineering, 207 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA
| | - Erin Antonienko
- Department of Biomedical Engineering, 207 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA
| | - Kathleen Burke
- Department of Biomedical Engineering, 207 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA
| | - Edward Brown
- Department of Biomedical Engineering, 207 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA
- Department of Neurobiology and Anatomy, University of Rochester, 601 Elmwood Ave, Rochester, NY, 14642, USA
| | - Danielle S.W. Benoit
- Department of Biomedical Engineering, 207 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA
- Department of Biomedical Genetics, 601 Elmwood Ave, University of Rochester, Rochester, NY 14642, USA
- Department of Chemical Engineering, 206 Gavett Hall, University of Rochester, Rochester, NY 14627 USA
- Center for Musculoskeletal Research, 601 Elmwood Ave, University of Rochester Medical Center, Rochester, NY 14642, USA
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30
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Browne S, Pandit A. Biomaterial-mediated modification of the local inflammatory environment. Front Bioeng Biotechnol 2015; 3:67. [PMID: 26029692 PMCID: PMC4432793 DOI: 10.3389/fbioe.2015.00067] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Accepted: 04/30/2015] [Indexed: 12/14/2022] Open
Abstract
Inflammation plays a major role in the rejection of biomaterial implants. In addition, despite playing an important role in the early stages of wound healing, dysregulated inflammation has a negative impact on the wound healing processes. Thus, strategies to modulate excessive inflammation are needed. Through the use of biomaterials to control the release of anti-inflammatory therapeutics, increased control over inflammation is possible in a range of pathological conditions. However, the choice of biomaterial (natural or synthetic), and the form it takes (solid, hydrogel, or micro/nanoparticle) is dependent on both the cause and tissue location of inflammation. These considerations also influence the nature of the anti-inflammatory therapeutic that is incorporated into the biomaterial to be delivered. In this report, the range of biomaterials and anti-inflammatory therapeutics that have been combined will be discussed, as well as the functional benefit observed. Furthermore, we point toward future strategies in the field that will bring more efficacious anti-inflammatory therapeutics closer to realization.
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Affiliation(s)
- Shane Browne
- Network of Excellence for Functional Biomaterials (NFB), National University of Ireland, Galway, Ireland
| | - Abhay Pandit
- Network of Excellence for Functional Biomaterials (NFB), National University of Ireland, Galway, Ireland
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31
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Jeganathan S, Fiorino C, Naik U, Sun HS, Harrison RE. Modulation of osteoclastogenesis with macrophage M1- and M2-inducing stimuli. PLoS One 2014; 9:e104498. [PMID: 25101660 PMCID: PMC4125219 DOI: 10.1371/journal.pone.0104498] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Accepted: 07/14/2014] [Indexed: 12/15/2022] Open
Abstract
Macrophages are generated through the differentiation of monocytes in tissues and they have important functions in innate and adaptive immunity. In addition to their roles as phagocytes, macrophages can be further differentiated, in the presence of receptor activator of nuclear factor kappa-B ligand (RANKL) and macrophage colony-stimulating factor (M-CSF), into osteoclasts (multinucleated giant cells that are responsible for bone resorption). In this work, we set out to characterize whether various inflammatory stimuli, known to induce macrophage polarization, can alter the type of multinucleated giant cell obtained from RANKL differentiation. Following a four-day differentiation protocol, along with lipopolysaccharide (LPS)/interferon gamma (IFNγ) as one stimulus, and interleukin-4 (IL-4) as the other, three types of multinucleated cells were generated. Using various microscopy techniques (bright field, epifluorescence and scanning electron), functional assays, and western blotting for osteoclast markers, we found that, as expected, RANKL treatment alone resulted in osteoclasts, whereas the addition of LPS/IFNγ to RANKL pre-treated macrophages generated Langhans-type giant cells, while IL-4 led to giant cells resembling foreign body giant cells with osteoclast-like characteristics. Finally, to gain insight into the modulation of osteoclastogenesis, we characterized the formation and morphology of RANKL and LPS/IFNγ-induced multinucleated giant cells.
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Affiliation(s)
- Sujeeve Jeganathan
- Ontario Cancer Institute and Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Cara Fiorino
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Urja Naik
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - He song Sun
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Rene E. Harrison
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
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32
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Liu H, Wise SG, Rnjak-Kovacina J, Kaplan DL, Bilek MM, Weiss AS, Fei J, Bao S. Biocompatibility of silk-tropoelastin protein polymers. Biomaterials 2014; 35:5138-47. [DOI: 10.1016/j.biomaterials.2014.03.024] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 03/12/2014] [Indexed: 01/09/2023]
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33
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Microdialysis sampling techniques applied to studies of the foreign body reaction. Eur J Pharm Sci 2013; 57:74-86. [PMID: 24269987 DOI: 10.1016/j.ejps.2013.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 11/05/2013] [Indexed: 02/06/2023]
Abstract
Implanted materials including drug delivery devices and chemical sensors undergo what is termed the foreign body reaction (FBR). Depending on the device and its intended application, the FBR can have differing consequences. An extensive scientific research effort has been devoted to elucidating the cellular and molecular mechanisms that drive the FBR. Important, yet relatively unexplored, research includes the localized tissue biochemistry and the chemical signaling events that occur throughout the FBR. This review provides an overview of the mechanisms of the FBR, describes how the FBR affects different implanted devices, and illustrates the role that microdialysis sampling can play in further elucidating the chemical communication processes that drive FBR outcomes.
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34
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van Putten SM, Ploeger DT, Popa ER, Bank RA. Macrophage phenotypes in the collagen-induced foreign body reaction in rats. Acta Biomater 2013; 9:6502-10. [PMID: 23376130 DOI: 10.1016/j.actbio.2013.01.022] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Revised: 12/10/2012] [Accepted: 01/17/2013] [Indexed: 01/23/2023]
Abstract
Implantation of biomaterials into the body elicits a material-dependent inflammatory response called the foreign body reaction (FBR). Macrophages play a pivotal role in the FBR by orchestrating the pro-inflammatory microenvironment around the biomaterials by secreting cytokines, chemokines and growth factors. When the biomaterial is porous or degradable, macrophages can migrate into the material and continue the generation of a pro-inflammatory microenvironment inside the materials. They also regulate the degradation of biomaterials by secreting proteolytic enzymes and by phagocytosis. We hypothesize that macrophages present in the different microenvironments of the FBR have different phenotypes. Fundamental knowledge of the phenotypes of macrophages and their dynamics during the FBR will contribute to our overall understanding of the mechanisms involved in the FBR, and may provide us with additional tools to modulate the FBR. To investigate the phenotype of macrophages in the FBR, we validated phenotype-specific markers for rat macrophages in vitro by stimulating them with IFNγ/LPS, IL4/IL13 or IL4/dexamethasone to induce classically activated macrophages (M1φ) or alternatively activated macrophages (M2φ). Gene expression analysis, Western blot and immunohistochemistry revealed that iNOS and CD206 are specifically expressed by M1φ and M2φ, respectively. Using these markers, we investigated the distribution of M1φ and M2φ in the FBR induced by subcutaneously implanted hexamethylenediisocyanate cross-linked dermal sheep collagen (HDSC) disks in AO rats. We found that part of the macrophages display an M2 phenotype, whereas the M1phenotype was not detected. Our data suggest that many macrophages in the FBR induced by HDSC do not fit into the classical M1 or M2 dichotomy.
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35
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The induction of cytokines by polycation containing microspheres by a complement dependent mechanism. Biomaterials 2013; 34:621-30. [DOI: 10.1016/j.biomaterials.2012.10.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Accepted: 10/04/2012] [Indexed: 12/28/2022]
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36
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Amini AR, Wallace JS, Nukavarapu SP. Short-term and long-term effects of orthopedic biodegradable implants. J Long Term Eff Med Implants 2012; 21:93-122. [PMID: 22043969 DOI: 10.1615/jlongtermeffmedimplants.v21.i2.10] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Presently, orthopedic and oral/maxillofacial implants represent a combined $2.8 billion market, a figure expected to experience significant and continued growth. Although traditional permanent implants have been proved clinically efficacious, they are also associated with several drawbacks, including secondary revision and removal surgeries. Non-permanent, biodegradable implants offer a promising alternative for patients, as they provide temporary support and degrade at a rate matching tissue formation, and thus, eliminate the need for secondary surgeries. These implants have been in clinical use for nearly 25 years, competing directly with, or maybe even exceeding, the performance of permanent implants. The initial implantation of biodegradable materials, as with permanent materials, mounts an acute host inflammatory response. Over time, the implant degradation profile and possible degradation product toxicity mediate long-term biodegradable implant-induced inflammation. However, unlike permanent implants, this inflammation is likely to cease once the material disappears. Implant-mediated inflammation is a critical determinant for implant success. Thus, for the development of a proactive biodegradable implant that has the ability to promote optimal bone regeneration and minimal detrimental inflammation, a thorough understanding of short- and long-term inflammatory events is required. Here, we discuss an array of biodegradable orthopedic implants, their associated short- and long- term inflammatory effects, and methods to mediate these inflammatory events.
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Affiliation(s)
- Ami R Amini
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, CT, USA
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37
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Dankers PY, van Luyn MJ, Huizinga-van der Vlag A, van Gemert GM, Petersen AH, Meijer E, Janssen HM, Bosman AW, Popa ER. Development and in-vivo characterization of supramolecular hydrogels for intrarenal drug delivery. Biomaterials 2012; 33:5144-55. [DOI: 10.1016/j.biomaterials.2012.03.052] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 03/13/2012] [Indexed: 10/28/2022]
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38
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Min SY, Fu Y, Hutcheson J, Wu T, Khobahy E, Zhu J, Vanarsa K, Du Y, Park MJ, Park HS, Saxena R, Kim HY, Mohan C. Peritoneal catheter implantation elicits IL-10-producing immune-suppressor macrophages through a MyD88-dependent pathway. Clin Immunol 2012; 143:59-72. [PMID: 22341910 DOI: 10.1016/j.clim.2012.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2011] [Revised: 01/02/2012] [Accepted: 01/07/2012] [Indexed: 12/11/2022]
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Binnebösel M, von Trotha KT, Ricken C, Klink CD, Junge K, Conze J, Jansen M, Neumann UP, Lynen Jansen P. Gentamicin supplemented polyvinylidenfluoride mesh materials enhance tissue integration due to a transcriptionally reduced MMP-2 protein expression. BMC Surg 2012; 12:1. [PMID: 22244356 PMCID: PMC3296653 DOI: 10.1186/1471-2482-12-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Accepted: 01/13/2012] [Indexed: 12/26/2022] Open
Abstract
Background A beneficial effect of gentamicin supplemented mesh material on tissue integration is known. To further elucidate the interaction of collagen and MMP-2 in chronic foreign body reaction and to determine the significance of the MMP-2-specific regulatory element (RE-1) that is known to mediate 80% of the MMP-2 promoter activity, the spatial and temporal transcriptional regulation of the MMP-2 gene was analyzed at the cellular level. Methods A PVDF mesh material was surface modified by plasma-induced graft polymerization of acrylic acid (PVDF+PAAc). Three different gentamicin concentrations were bound to the provided active sites of the grafted mesh surfaces (2, 5 and 8 μg/mg). 75 male transgenic MMP-2/LacZ mice harbouring the LacZ reporter gene under control of MMP-2 regulatory sequence -1241/+423, excluding the RE-1 were randomized to five groups. Bilateral of the abdominal midline one of the five different meshes was implanted subcutaneously in each animal. MMP-2 gene transcription (anti-ß-galactosidase staining) and MMP-2 protein expression (anti-MMP-2 staining) were analyzed semiquantitatively by immunohistochemistry 7, 21 and 90 days after mesh implantation. The collagen type I/III ratio was analyzed by cross polarization microscopy to determine the quality of mesh integration. Results The perifilamentary ß-galactosidase expression as well as the collagen type I/III ratio increased up to the 90th day for all mesh modifications, whereas no significant changes could be observed for MMP-2 protein expression between days 21 and 90. Both the 5 and 8 μg/mg gentamicin group showed significantly reduced levels of ß-galactosidase expression and MMP-2 positive stained cells when compared to the PVDF group on day 7, 21 and 90 respectively (5 μg/mg: p < 0.05 each; 8 μg/mg: p < 0.05 each). Though the type I/III collagen ratio increased over time for all mesh modifications significant differences to the PVDF mesh were only detected for the 8 μg/mg group at all 3 time points (p < 0.05 each). Conclusions Our current data indicate that lack of RE-1 is correlated with increased mesh induced MMP-2-gene expression for coated as well as for non-coated mesh materials. Gentamicin coating reduced MMP-2 transcription and protein expression. For the 8 μg/mg group this effect is associated with an increased type I/III collagen ratio. These findings suggest that gentamicin is beneficial for tissue integration after mesh implantation, which possibly is mediated via RE-1.
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Affiliation(s)
- Marcel Binnebösel
- Department of General, Visceral and Transplantation Surgery, RWTH Aachen University Hospital, Aachen, Germany.
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Moretti AIS, Pinto FJPS, Cury V, Jurado MC, Marcondes W, Velasco IT, Souza HP. Nitric oxide modulates metalloproteinase-2, collagen deposition and adhesion rate after polypropylene mesh implantation in the intra-abdominal wall. Acta Biomater 2012; 8:108-15. [PMID: 21864729 DOI: 10.1016/j.actbio.2011.08.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 08/01/2011] [Accepted: 08/05/2011] [Indexed: 02/07/2023]
Abstract
Prosthetic meshes are commonly used to correct abdominal wall defects. However, the inflammatory reaction induced by these devices in the peritoneum is not completely understood. We hypothesized that nitric oxide (NO), produced by nitric oxide synthase 2 (NOS2) may modulate the response induced by mesh implants in the abdominal wall and, consequently, affect the outcome of the surgical procedure. Polypropylene meshes were implanted in the peritoneal side of the abdominal wall in wild-type and NOS2-deficient (NOS2(-/-)) mice. After 15 days tissues around the mesh implant were collected, and inflammatory markers (the cytokine interleukin 1β (IL-1β) and NO) and tissue remodeling (collagen and metalloproteinases (MMP) 2 and 9) were analyzed. The lack of NOS2-derived NO induced a higher incidence of visceral adhesions at the mesh implantation site compared with wild-type mice that underwent the same procedure (P<0.05). Additionally, higher levels of IL-1β were present in the mesh-implanted NOS2(-/-) animals compared with control and wild-type mice. Mesh implantation induced collagen I and III deposition, but in smaller amounts in NOS2(-/-) mice. MMP-9 activity after the surgical procedure was similarly increased in both groups. Conversely, MMP-2 activity was unchanged in mesh-implanted wild-type mice, but was significantly increased in NOS2(-/-) mice (P<0.01), due to decreased S-nitrosylation of the enzyme in these animals. We conclude that NOS2-derived NO is crucial for an adequate response to and integration of polypropylene mesh implants in the peritoneum. NO deficiency results in a prolonged inflammatory reaction to the mesh implant, and reduced collagen deposition may contribute to an increased incidence of visceral adhesions.
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Affiliation(s)
- Ana I S Moretti
- Emergency Medicine Division, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
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Martins AM, Kretlow JD, Costa-Pinto AR, Malafaya PB, Fernandes EM, Neves NM, Alves CM, Mikos AG, Kasper FK, Reis RL. Gradual pore formation in natural origin scaffolds throughout subcutaneous implantation. J Biomed Mater Res A 2011; 100:599-612. [PMID: 22213676 DOI: 10.1002/jbm.a.33261] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 07/26/2011] [Accepted: 08/01/2011] [Indexed: 11/08/2022]
Abstract
This study used a rat subcutaneous implantation model to investigate gradual in situ pore formation in a self-regulating degradable chitosan-based material, which comprises lysozyme incorporated into biomimetic calcium phosphate (CaP) coatings at the surface to control the scaffold degradation and subsequent pore formation. Specifically, the in vivo degradation of the scaffolds, the in situ pore formation, and the tissue response were investigated. Chitosan or chitosan/starch scaffolds were studied with and without a CaP coating in the presence or absence of lysozyme for a total of six experimental groups. Twenty-four scaffolds per group were implanted, and eight scaffolds were retrieved at each of three time points (3, 6, and 12 weeks). Harvested samples were analyzed for weight loss, microcomputed tomography, and histological analysis. All scaffolds showed pronounced weight loss and pore formation as a function of time. The highest weight loss was 29.8% ± 1.5%, obtained at week 12 for CaP chitosan/starch scaffolds with lysozyme incorporated. Moreover, all experimental groups showed a significant increase in porosity after 12 weeks. At all time points no adverse tissue reaction was observed, and as degradation increased, histological analysis showed cellular ingrowth throughout the implants. Using this innovative methodology, the ability to gradually generate pores in situ was clearly demonstrated in vivo.
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Affiliation(s)
- Ana M Martins
- Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Taipas, Guimarães 4806-909, Portugal
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Franz S, Rammelt S, Scharnweber D, Simon JC. Immune responses to implants - a review of the implications for the design of immunomodulatory biomaterials. Biomaterials 2011; 32:6692-709. [PMID: 21715002 DOI: 10.1016/j.biomaterials.2011.05.078] [Citation(s) in RCA: 888] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Accepted: 05/26/2011] [Indexed: 12/11/2022]
Abstract
A key for long-term survival and function of biomaterials is that they do not elicit a detrimental immune response. As biomaterials can have profound impacts on the host immune response the concept emerged to design biomaterials that are able to trigger desired immunological outcomes and thus support the healing process. However, engineering such biomaterials requires an in-depth understanding of the host inflammatory and wound healing response to implanted materials. One focus of this review is to outline the up-to-date knowledge on immune responses to biomaterials. Understanding the complex interactions of host response and material implants reveals the need for and also the potential of "immunomodulating" biomaterials. Based on this knowledge, we discuss strategies of triggering appropriate immune responses by functional biomaterials and highlight recent approaches of biomaterials that mimic the physiological extracellular matrix and modify cellular immune responses.
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Affiliation(s)
- Sandra Franz
- Department of Dermatology, Venerology and Allergology, University Leipzig, 04103 Leipzig, Germany.
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Ye Q, van Amerongen MJ, Sandham JA, Bank RA, van Luyn MJA, Harmsen MC. Site-specific tissue inhibitor of metalloproteinase-1 governs the matrix metalloproteinases-dependent degradation of crosslinked collagen scaffolds and is correlated with interleukin-10. J Tissue Eng Regen Med 2011; 5:264-74. [DOI: 10.1002/term.311] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ye Q, Harmsen MC, Ren Y, Bank RA. The role of collagen receptors Endo180 and DDR-2 in the foreign body reaction against non-crosslinked collagen and gelatin. Biomaterials 2011; 32:1339-50. [DOI: 10.1016/j.biomaterials.2010.09.076] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2010] [Accepted: 09/30/2010] [Indexed: 10/18/2022]
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Binnebösel M, von Trotha KT, Jansen PL, Conze J, Neumann UP, Junge K. Biocompatibility of prosthetic meshes in abdominal surgery. Semin Immunopathol 2011; 33:235-43. [PMID: 21225262 DOI: 10.1007/s00281-010-0237-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Accepted: 12/15/2010] [Indexed: 01/29/2023]
Abstract
Surgical meshes today represent a group of implants mainly used for hernia repair. Modern hernia surgery is no longer imaginable without the application of these special biomaterials leading to millions of implantations each year worldwide. Because clinical trials are insufficient to evaluate the distinct effects of modified mesh materials in regard to tissue biocompatibility and functionality, a basic understanding of the physicochemical properties of mesh materials, as well as the underlying cause for hernia formation, is essential for a rational selection of the most appropriate device. The most important properties of meshes were found to be the type of filament, tensile strength, and experimental data, which indicate that particularly the mesh's porosity is of outstanding importance.
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Affiliation(s)
- Marcel Binnebösel
- Department of Surgery, University Hospital of the RWTH Aachen, Pauwelsstrasse 30, 52074, Aachen, Germany
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Influence of degradation on inflammatory profile of polyphosphazene coated PMMA and trisacryl gelatin microspheres in a sheep uterine artery embolization model. Biomaterials 2011; 32:339-51. [DOI: 10.1016/j.biomaterials.2010.09.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Accepted: 09/01/2010] [Indexed: 12/24/2022]
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Siar CH, Toh CG, Romanos G, Ng KH. Subcutaneous reactions and degradation characteristics of collagenous and noncollagenous membranes in a macaque model. Clin Oral Implants Res 2010; 22:113-20. [DOI: 10.1111/j.1600-0501.2010.01970.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Ye Q, Harmsen MC, van Luyn MJ, Bank RA. The relationship between collagen scaffold cross-linking agents and neutrophils in the foreign body reaction. Biomaterials 2010; 31:9192-201. [DOI: 10.1016/j.biomaterials.2010.08.049] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Accepted: 08/18/2010] [Indexed: 12/01/2022]
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Recombinant Gelatin Microspheres: Novel Formulations for Tissue Repair? Tissue Eng Part A 2010; 16:1811-21. [DOI: 10.1089/ten.tea.2009.0592] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Wang Y, Zagorevski DV, Lennartz MR, Loegering DJ, Stenken JA. Detection of in vivo matrix metalloproteinase activity using microdialysis sampling and liquid chromatography/mass spectrometry. Anal Chem 2009; 81:9961-71. [PMID: 19904964 PMCID: PMC3547635 DOI: 10.1021/ac901703g] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Matrix metalloproteinases (MMPs) are a family of endoproteases that break down extracellular matrix and whose upregulation contributes to several diseases. A liquid chromatography/tandem mass spectrometry (LC/MS/MS) method was developed to quantify MMP-1 and MMP-9 substrates and their N-terminal peptide products in samples obtained from implanted microdialysis sampling probes. In vitro studies with purified human MMP-1 and MMP-9 were used to optimize the assay and determine the effectiveness of the local delivery of a broad-spectrum MMP inhibitor, GM 6001. Localized delivery of GM 6001 at 10 microM was sufficient to completely inhibit product formation in vitro. In vivo studies in male Sprague-Dawley rats were performed with microdialysis probes implanted into the subcutaneous tissue. Directly after microdialysis probe implantation, infusions of the MMP-1 and MMP-9 substrates (50 microM each) resulted in recovered product concentrations of approximately 2 microM. During a 50 microM GM 6001 coinfusion with the substrates, a 30% and 25% reduction in product formation for the MMP-1 and MMP-9 substrates was obtained, respectively. Blank dialysates were negative for enzymatic activity that could cleave the MMP substrates. This method allowed for the activity of different MMPs surrounding the microdialysis probe to be observed during in vivo sampling.
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Affiliation(s)
- Ying Wang
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, USA
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