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Ten Brink T, Damanik F, Rotmans JI, Moroni L. Unraveling and Harnessing the Immune Response at the Cell-Biomaterial Interface for Tissue Engineering Purposes. Adv Healthc Mater 2024; 13:e2301939. [PMID: 38217464 DOI: 10.1002/adhm.202301939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 12/14/2023] [Indexed: 01/15/2024]
Abstract
Biomaterials are defined as "engineered materials" and include a range of natural and synthetic products, designed for their introduction into and interaction with living tissues. Biomaterials are considered prominent tools in regenerative medicine that support the restoration of tissue defects and retain physiologic functionality. Although commonly used in the medical field, these constructs are inherently foreign toward the host and induce an immune response at the material-tissue interface, defined as the foreign body response (FBR). A strong connection between the foreign body response and tissue regeneration is suggested, in which an appropriate amount of immune response and macrophage polarization is necessary to trigger autologous tissue formation. Recent developments in this field have led to the characterization of immunomodulatory traits that optimizes bioactivity, the integration of biomaterials and determines the fate of tissue regeneration. This review addresses a variety of aspects that are involved in steering the inflammatory response, including immune cell interactions, physical characteristics, biochemical cues, and metabolomics. Harnessing the advancing knowledge of the FBR allows for the optimization of biomaterial-based implants, aiming to prevent damage of the implant, improve natural regeneration, and provide the tools for an efficient and successful in vivo implantation.
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Affiliation(s)
- Tim Ten Brink
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229ER, The Netherlands
| | - Febriyani Damanik
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229ER, The Netherlands
| | - Joris I Rotmans
- Department of Internal Medicine, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333ZA, The Netherlands
| | - Lorenzo Moroni
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229ER, The Netherlands
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Wojasiński M, Podgórski R, Kowalczyk P, Latocha J, Prystupiuk K, Janowska O, Gierlotka S, Staniszewska M, Ciach T, Sobieszuk P. Mechanically suitable and osteoinductive 3D-printed composite scaffolds with hydroxyapatite nanoparticles having diverse morphologies for bone tissue engineering. J Biomed Mater Res B Appl Biomater 2024; 112:e35409. [PMID: 38786580 DOI: 10.1002/jbm.b.35409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/04/2024] [Accepted: 04/02/2024] [Indexed: 05/25/2024]
Abstract
The challenge of integrating hydroxyapatite nanoparticles (nHAp) with polymers is hindered by the conflict between the hydrophilic and hygroscopic properties of nHAp and the hydrophobic properties of polymers. This conflict particularly affects the materials when calcium phosphates, including nHAp, are used as a filler in composites in thermal processing applications such as 3D printing with fused filament fabrication (FFF). To overcome this, we propose a one-step surface modification of nHAp with calcium stearate monolayer. Moreover, to build the scaffold with suitable mechanical strength, we tested the addition of nHAp with diverse morphology-spherical, plate- and rod-like nanoparticles. Our analysis showed that the composite of polycaprolactone (PCL) reinforced with nHAp with rod and plate morphologies modified with calcium stearate monolayer exhibited a significant increase in compressive strength. However, composites with spherical nHAp added to PCL showed a significant reduction in compressive modulus and compressive strength, but both parameters were within the applicability range of hard tissue scaffolds. None of the tested composite scaffolds showed cytotoxicity in L929 murine fibroblasts or MG-63 human osteoblast-like cells, supporting the proliferation of the latter. Additionally, PCL/nHAp scaffolds reinforced with spherical nHAp caused osteoactivation of bone marrow human mesenchymal stem cells, as indicated by alkaline phosphatase activity and COL1, RUNX2, and BGLAP expression. These results suggest that the calcium stearate monolayer on the surface of the nHAp particles allows the production of polymer/nHAp composites suitable for hard tissue engineering and personalized implant production in 3D printing using the FFF technique.
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Affiliation(s)
- Michał Wojasiński
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Rafał Podgórski
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Piotr Kowalczyk
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Joanna Latocha
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Kornel Prystupiuk
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Oliwia Janowska
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Stanisław Gierlotka
- Laboratory of Nanostructures, Institute of High Pressure Physics, Polish Academy of Sciences, Warsaw, Poland
| | | | - Tomasz Ciach
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw, Poland
| | - Paweł Sobieszuk
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
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Basit J, Ahmed M, Shafiq A, Zaheer Z, Nashwan AJ, Ahmed A, Hamza M, Naseer U, Ali S, Gupta N, Sattar Y, Kawsara A, Daggubati R, Alraies MC. Temporal Trends in the Outcomes of Percutaneous Coronary Intervention With Zotarolimus Eluting Stents Versus Everolimus Eluting Stents: A Meta-Analysis of Randomized Controlled Trials. Clin Cardiol 2024; 47:e24306. [PMID: 38888152 PMCID: PMC11184471 DOI: 10.1002/clc.24306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 05/23/2024] [Accepted: 05/30/2024] [Indexed: 06/20/2024] Open
Abstract
INTRODUCTION Long-term follow-up results of various trials comparing Zotarolimus eluting stents (ZES) with Everolimus eluting stents (EES) have been published recently. Additionally, over the last decade, there have been new trials comparing the ZES with various commercially available EES. We aim to conduct an updated meta-analysis in light of new evidence from randomized controlled trials (RCTs) to provide comprehensive evidence regarding the temporal trends in the clinical outcomes. METHODS A comprehensive literature search was conducted across PubMed, Cochrane, and Embase. RCTs comparing ZES with EES for short (<2 years), intermediate (2-3 years), and long-term follow-ups (3-5 years) were included. Relative risk was used to pool the dichotomous outcomes using the random effects model employing the inverse variance method. All statistical analysis was conducted using Revman 5.4. RESULTS A total of 18 studies reporting data at different follow-ups for nine trials (n = 14319) were included. At short-term follow-up (<2 years), there were no significant differences between the two types of stents (all-cause death, cardiac death, Major adverse cardiovascular events (MACE), target vessel myocardial infarction, definite or probable stent thrombosis or safety outcomes (target vessel revascularization, target lesion revascularization, target vessel failure, target lesion failure). At intermediate follow-up (2-3 years), EES was superior to ZES for reducing target lesion revascularization (RR = 1.28, 95% CI = 1.05-1.58, p < 0.05). At long-term follow-up (3-5 years), there were no significant differences between the two groups for any of the pooled outcomes (p > 0.05). CONCLUSION ZES and EES have similar safety and efficacy at short, intermediate, and long-term follow-ups.
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Affiliation(s)
- Jawad Basit
- Department of MedicineRawalpindi Medical UniversityRawalpindiPakistan
- Cardiovascular Analytics GroupCanterburyUK
| | - Mushood Ahmed
- Department of MedicineRawalpindi Medical UniversityRawalpindiPakistan
| | - Aimen Shafiq
- Department of MedicineDow University of Health SciencesKarachiPakistan
| | - Zaofashan Zaheer
- Department of MedicineKing Edward Medical UniversityLahorePakistan
| | | | - Aleena Ahmed
- Department of MedicineKing Edward Medical UniversityLahorePakistan
| | | | - Usman Naseer
- Department of CardiologyUSD Sanford School of MedicineSioux FallsSouth DakotaUSA
| | - Shafaqat Ali
- Department of Internal MedicineLouisiana State UniversityShreveportLouisianaUSA
| | - Neelesh Gupta
- Department of Cardiology, Kirk Kerkorian School of MedicineUniversity of Nevada Las VegasLas VegasNevadaUSA
| | - Yasar Sattar
- Department of Interventional CardiologyWest Virginia UniversityMorgantownWest VirginiaUSA
| | - Akram Kawsara
- Department of Interventional CardiologyWest Virginia UniversityMorgantownWest VirginiaUSA
| | - Ramesh Daggubati
- Department of Interventional CardiologyWest Virginia UniversityMorgantownWest VirginiaUSA
| | - M. Chadi Alraies
- Department of Cardiology, Detroit Medical CenterWayne State UniversityDetroitMichiganUSA
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Hu Z, Guo H, An D, Wu M, Kaura A, Oh H, Wang Y, Zhao M, Li S, Yang Q, Ji X, Li S, Wang B, Yoo D, Tran P, Ghoreishi-Haack N, Kozorovitskiy Y, Huang Y, Li R, Rogers JA. Bioresorbable Multilayer Organic-Inorganic Films for Bioelectronic Systems. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309421. [PMID: 38339983 DOI: 10.1002/adma.202309421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/31/2024] [Indexed: 02/12/2024]
Abstract
Bioresorbable electronic devices as temporary biomedical implants represent an emerging class of technology relevant to a range of patient conditions currently addressed with technologies that require surgical explantation after a desired period of use. Obtaining reliable performance and favorable degradation behavior demands materials that can serve as biofluid barriers in encapsulating structures that avoid premature degradation of active electronic components. Here, this work presents a materials design that addresses this need, with properties in water impermeability, mechanical flexibility, and processability that are superior to alternatives. The approach uses multilayer assemblies of alternating films of polyanhydride and silicon oxynitride formed by spin-coating and plasma-enhanced chemical vapor deposition , respectively. Experimental and theoretical studies investigate the effects of material composition and multilayer structure on water barrier performance, water distribution, and degradation behavior. Demonstrations with inductor-capacitor circuits, wireless power transfer systems, and wireless optoelectronic devices illustrate the performance of this materials system as a bioresorbable encapsulating structure.
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Affiliation(s)
- Ziying Hu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Hexia Guo
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Dongqi An
- State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Department of Engineering Mechanics, and International Research Center for Computational Mechanics, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Mingzheng Wu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Department of Neurobiology, Northwestern University, Evanston, IL, 60208, USA
| | - Anika Kaura
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Hannah Oh
- Department of Neurobiology, Northwestern University, Evanston, IL, 60208, USA
| | - Yue Wang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Mengjia Zhao
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Shuo Li
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Quansan Yang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Xudong Ji
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA
| | - Shupeng Li
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Bo Wang
- State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Department of Engineering Mechanics, and International Research Center for Computational Mechanics, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Davin Yoo
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Phuong Tran
- Developmental Therapeutics Core, Northwestern University, Evanston, IL, 60208, USA
| | | | | | - Yonggang Huang
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Rui Li
- State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Department of Engineering Mechanics, and International Research Center for Computational Mechanics, Dalian University of Technology, Dalian, 116024, P. R. China
| | - John A Rogers
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Chemistry, Department of Neurological Surgery, Department of Electrical Engineering & Computer Science, Northwestern University, Evanston, IL, 60208, USA
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Coats JP, Cochereau R, Dinu IA, Messmer D, Sciortino F, Palivan CG. Trends in the Synthesis of Polymer Nano- and Microscale Materials for Bio-Related Applications. Macromol Biosci 2023; 23:e2200474. [PMID: 36949011 DOI: 10.1002/mabi.202200474] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 02/24/2023] [Indexed: 03/24/2023]
Abstract
Polymeric nano- and microscale materials bear significant potential in manifold applications related to biomedicine. This is owed not only to the large chemical diversity of the constituent polymers, but also to the various morphologies these materials can achieve, ranging from simple particles to intricate self-assembled structures. Modern synthetic polymer chemistry permits the tuning of many physicochemical parameters affecting the behavior of polymeric nano- and microscale materials in the biological context. In this Perspective, an overview of the synthetic principles underlying the modern preparation of these materials is provided, aiming to demonstrate how advances in and ingenious implementations of polymer chemistry fuel a range of applications, both present and prospective.
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Affiliation(s)
- John Peter Coats
- Department of Chemistry, Universitat Basel, Mattenstrasse 24a, Basel, CH-4058, Switzerland
| | - Rémy Cochereau
- Department of Chemistry, Universitat Basel, Mattenstrasse 24a, Basel, CH-4058, Switzerland
| | - Ionel Adrian Dinu
- Department of Chemistry, Universitat Basel, Mattenstrasse 24a, Basel, CH-4058, Switzerland
| | - Daniel Messmer
- Department of Chemistry, Universitat Basel, Mattenstrasse 24a, Basel, CH-4058, Switzerland
| | - Flavien Sciortino
- Department of Chemistry, Universitat Basel, Mattenstrasse 24a, Basel, CH-4058, Switzerland
| | - Cornelia G Palivan
- Department of Chemistry, Universitat Basel, Mattenstrasse 24a, Basel, CH-4058, Switzerland
- National Centre for Competence in Research - Molecular Systems Engineering, Mattenstrasse 24a, Basel, CH-4058, Switzerland
- Swiss Nanoscience Institute, Klingelbergstrasse 82, Basel, CH-4056, Switzerland
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Li W, Xu F, Dai F, Deng T, Ai Y, Xu Z, He C, Ai F, Song L. Hydrophilic surface-modified 3D printed flexible scaffolds with high ceramic particle concentrations for immunopolarization-regulation and bone regeneration. Biomater Sci 2023; 11:3976-3997. [PMID: 37115001 DOI: 10.1039/d3bm00362k] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Bioceramic scaffolds used in bone tissue engineering suffer from a low concentration of ceramic particles (<50 wt%), because the high concentration of ceramic particles increases the brittleness of the composite. 3D printed flexible PCL/HA scaffolds with high ceramic particle concentrations (84 wt%) were successfully fabricated in this study. However, the hydrophobicity of PCL weakens the composite scaffold hydrophilicity, which may limit the osteogenic ability to some extent. Thus, as a less time-consuming, less labour intensive, and more cost-effective treatment method, alkali treatment (AT) was employed to modify the surface hydrophilicity of the PCL/HA scaffold, and its regulation of immune responses and bone regeneration were investigated in vivo and in vitro. Initially, several concentrations of NaOH (0.5, 1, 1.5, 2, 2.5, and 5 mol L-1) were employed in tests to determine the appropriate concentration for AT. Based on the comprehensive consideration of the results of mechanical experiments and hydrophilicity, 2 mol L-1 and 2.5 mol L-1 of NaOH were selected for further investigation in this study. The PCL/HA-AT-2 scaffold dramatically reduced foreign body reactions as compared to the PCL/HA and PCL/HA-AT-2.5 scaffolds, promoted macrophage polarization towards the M2 phenotype and enhanced new bone formation. The Wnt/β-catenin pathway might participate in the signal transduction underlying hydrophilic surface-modified 3D printed scaffold-regulated osteogenesis, according to the results of immunohistochemical staining. In conclusion, hydrophilic surface-modified 3D printed flexible scaffolds with high ceramic particle concentrations can regulate the immune reactions and macrophage polarization to promote bone regeneration, and the PCL/HA-AT-2 scaffold is a potential candidate for bone tissue repair.
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Affiliation(s)
- Wenfeng Li
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Fancheng Xu
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Fang Dai
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Tian Deng
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Yufeng Ai
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Zhiyong Xu
- School of Pharmacy, Nanchang University, Nanchang, China
| | - Chenjiang He
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Fanrong Ai
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
- School of Advanced Manufacturing, Nanchang University, Nanchang, China.
| | - Li Song
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
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Lee CYP, Chooi WH, Ng SY, Chew SY. Modulating neuroinflammation through molecular, cellular and biomaterial-based approaches to treat spinal cord injury. Bioeng Transl Med 2023; 8:e10389. [PMID: 36925680 PMCID: PMC10013833 DOI: 10.1002/btm2.10389] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/02/2022] [Accepted: 07/16/2022] [Indexed: 11/09/2022] Open
Abstract
The neuroinflammatory response that is elicited after spinal cord injury contributes to both tissue damage and reparative processes. The complex and dynamic cellular and molecular changes within the spinal cord microenvironment result in a functional imbalance of immune cells and their modulatory factors. To facilitate wound healing and repair, it is necessary to manipulate the immunological pathways during neuroinflammation to achieve successful therapeutic interventions. In this review, recent advancements and fresh perspectives on the consequences of neuroinflammation after SCI and modulation of the inflammatory responses through the use of molecular-, cellular-, and biomaterial-based therapies to promote tissue regeneration and functional recovery will be discussed.
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Affiliation(s)
- Cheryl Yi-Pin Lee
- Institute of Molecular and Cell Biology ASTAR Research Entities Singapore Singapore
| | - Wai Hon Chooi
- Institute of Molecular and Cell Biology ASTAR Research Entities Singapore Singapore
| | - Shi-Yan Ng
- Institute of Molecular and Cell Biology ASTAR Research Entities Singapore Singapore
| | - Sing Yian Chew
- School of Chemical and Biomedical Engineering Nanyang Technological University Singapore Singapore.,Lee Kong Chian School of Medicine Nanyang Technological University Singapore Singapore.,School of Materials Science and Engineering Nanyang Technological University Singapore Singapore
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Hyun DY, Han X, Park DS, Kim M, Park JK, Cho KH, Sim DS, Hong YJ, Ahn Y, Jeong MH. A novel polymer-free everolimus-eluting stent with a nitrogen-doped titanium dioxide film inhibits restenosis and thrombosis in a swine coronary model. Cardiol J 2023; 30:VM/OJS/J/86222. [PMID: 36790043 PMCID: PMC10713211 DOI: 10.5603/cj.a2023.0006] [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: 10/22/2021] [Revised: 10/20/2022] [Accepted: 01/17/2023] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND Short-term outcomes regarding the safety and efficacy of a polymer-free everolimus-eluting stent (EES) with a nitrogen-doped titanium dioxide (N-TiO₂) film in a swine coronary model have been reported. However, the long-term results of the use of this type of stent have not yet been evaluated or compared to those of other polymer-free coronary stents. Therefore, this study aimed to determine the mid- to long-term safety and efficacy of a polymer-free EES with an N-TiO₂ film in a swine coronary model. METHODS Polymer-free EES with N-TiO₂ films (n = 30) and polymer-free sirolimus-eluting stents (SES; n = 30) were implanted in 30 pigs. Quantitative coronary analysis and optical coherence tomography were conducted immediately and at 1 (quantitative coronary analysis only), 3, and 6 months after stenting. Histopathologic examinations were performed at 1, 3, and 6 months after stenting. RESULTS The polymer-free EES group had a lower percentage of neointimal growth than the polymer-free SES group at 3 months (22.5% ± 11.4% vs. 32.1% ± 12.3%; p < 0.001). The polymer-free EES group had a lower fibrin score than the polymer-free SES group at 1 month (1.9 ± 0.45 vs. 2.5 ± 0.54; p = 0.001). The re-endothelialization rates were similar between groups. The polymer-free EES group had a lower percentage of the area of stenosis than the polymer-free SES group throughout the follow-up period. CONCLUSIONS The novel polymer-free EES with an N-TiO₂ film has superior safety and efficacy than the polymer-free SES at the 6-month follow-up in a swine model.
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Affiliation(s)
- Dae Young Hyun
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea.
| | - Xiongyi Han
- Cardiovascular Research Center, Chonnam National University Hospital, Gwangju, Korea
| | - Dae Sung Park
- Cardiovascular Research Center, Chonnam National University Hospital, Gwangju, Korea
| | - Munki Kim
- Cardiovascular Research Center, Chonnam National University Hospital, Gwangju, Korea
| | - Jun Kyu Park
- Cell and Growth Factor Biotechnology, Ltd., Seoul, Republic of Korea
| | - Kyung Hoon Cho
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Doo Sun Sim
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Young Joon Hong
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Youngkeun Ahn
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Myung Ho Jeong
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
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Ahmadi H, Ghamsarizade R, Haddadi-Asl V, Eivaz Mohammadloo H, Ramezanzadeh B. Designing a novel bio-compatible hydroxyapatite (HA)/hydroxyquinoline (8-HQ)-inbuilt polyvinylalcohol (PVA) composite coatings on Mg AZ31 implants via electrospinning and immersion protocols: smart anti-corrosion and anti-bacterial properties reinforcements. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.09.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Facile method to synthesize fluorescent chitosan hydrogels for selective detection and adsorption of Hg 2+/Hg . Carbohydr Polym 2022; 288:119417. [PMID: 35450660 DOI: 10.1016/j.carbpol.2022.119417] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/14/2022] [Accepted: 03/24/2022] [Indexed: 11/23/2022]
Abstract
Fluorescent chitosan-based hydrogel for the selective detection and adsorption of Hg2+/Hg+ in aqueous environment was prepared through three-step synthesis strategy. NO2-Boron-dipyrrolemethene (BODIPY) was prepared firstly, and then the -NO2 group was reduced to -NH2 group. Finally, the NH2-BODIPY was introduced to chitosan by Schiff base formation reaction through bi-aldehyde. Eventually, fluorescent chitosan hydrogel was obtained. The as-prepared fluorescent hydrogel probe could detect Hg2+/Hg+ through PET mechanism with the detection limit of 0.3 μM. The recognition site which combines Hg2+/Hg+ is CN, it is just formed in the reaction with chitosan and the amino group on BODIPY. Adsorption capacity of the fluorescent hydrogel is 121 mg·g-1, which is almost seven times of the original chitosan. The isotherm and kinetics of Hg2+/Hg+ removal follows Langmuir isotherm and pseudo-second order kinetics, respectively. Besides, a series of fluorescent hydrogels were prepared to compare the elasticity, hydropHilicity, fluorescence intensity and adsorption capacity.
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Hassan S, Najabat Ali M, Ghafoor B. An appraisal of polymers of DES technology and their impact on drug release kinetics. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2090941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sadia Hassan
- Department of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - Murtaza Najabat Ali
- Department of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - Bakhtawar Ghafoor
- Department of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Islamabad, Pakistan
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Li W, Dai F, Zhang S, Xu F, Xu Z, Liao S, Zeng L, Song L, Ai F. Pore Size of 3D-Printed Polycaprolactone/Polyethylene Glycol/Hydroxyapatite Scaffolds Affects Bone Regeneration by Modulating Macrophage Polarization and the Foreign Body Response. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20693-20707. [PMID: 35500207 DOI: 10.1021/acsami.2c02001] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
3D-printed porous bioactive ceramic scaffolds have been widely used in bone defect repair. However, material implantation is often accompanied by a foreign body response (FBR), which may affect host tissue regeneration. The physical properties of biomaterials, including shape, pore size, and porosity, control the relevant immune responses during tissue regeneration. To the best of our knowledge, the effect of the pore size of 3D-printed scaffolds on the immune response and bone-biomaterial integration has not been studied in vivo. Polycaprolactone/polyethylene glycol/hydroxyapatite (PCL/PEG/HA) bioactive scaffolds with different pore sizes, including 209.9 ± 77.1 μm (P200), 385.5 ± 28.6 μm (P400), and 582.1 ± 27.2 μm (P600), were prepared with a pneumatic extrusion 3D printer. Compared with other pore sizes, P600 significantly reduced the FBR and induced more M2 macrophage infiltration, vascular ingrowth, and new bone formation. Immunohistochemical staining revealed that the MyD88 protein might be involved in macrophage polarization-related signal transduction in response to the pore size. Based on these results, bone regeneration requires the active participation of the immune response, and the P600 PCL/PEG/HA scaffold is a preferable candidate for the repair of bone defects.
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Affiliation(s)
- Wenfeng Li
- The Department of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Fang Dai
- The Department of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang 330006, China
| | - Shan Zhang
- School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China
| | - Fancheng Xu
- The Department of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Zhiyong Xu
- School of Pharmacy, Nanchang University, Nanchang 330031, China
| | - Shousheng Liao
- The Department of Pathology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Liangtao Zeng
- The Department of Pathology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Li Song
- The Department of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang 330006, China
| | - Fanrong Ai
- School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China
- Nanchang Municipal Key Laboratory of 3D Bioprinting Technology and Equipment, Nanchang 330031, China
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13
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Jung K, Corrigan N, Wong EHH, Boyer C. Bioactive Synthetic Polymers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2105063. [PMID: 34611948 DOI: 10.1002/adma.202105063] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/13/2021] [Indexed: 05/21/2023]
Abstract
Synthetic polymers are omnipresent in society as textiles and packaging materials, in construction and medicine, among many other important applications. Alternatively, natural polymers play a crucial role in sustaining life and allowing organisms to adapt to their environments by performing key biological functions such as molecular recognition and transmission of genetic information. In general, the synthetic and natural polymer worlds are completely separated due to the inability for synthetic polymers to perform specific biological functions; in some cases, synthetic polymers cause uncontrolled and unwanted biological responses. However, owing to the advancement of synthetic polymerization techniques in recent years, new synthetic polymers have emerged that provide specific biological functions such as targeted molecular recognition of peptides, or present antiviral, anticancer, and antimicrobial activities. In this review, the emergence of this generation of bioactive synthetic polymers and their bioapplications are summarized. Finally, the future opportunities in this area are discussed.
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Affiliation(s)
- Kenward Jung
- Cluster for Advanced Macromolecular Design (CAMD), Australian Centre for Nanomedicine (ACN), and School of Chemical Engineering, University of New South Wales (UNSW) Sydney, Sydney, NSW, 2052, Australia
| | - Nathaniel Corrigan
- Cluster for Advanced Macromolecular Design (CAMD), Australian Centre for Nanomedicine (ACN), and School of Chemical Engineering, University of New South Wales (UNSW) Sydney, Sydney, NSW, 2052, Australia
| | - Edgar H H Wong
- Cluster for Advanced Macromolecular Design (CAMD), Australian Centre for Nanomedicine (ACN), and School of Chemical Engineering, University of New South Wales (UNSW) Sydney, Sydney, NSW, 2052, Australia
| | - Cyrille Boyer
- Cluster for Advanced Macromolecular Design (CAMD), Australian Centre for Nanomedicine (ACN), and School of Chemical Engineering, University of New South Wales (UNSW) Sydney, Sydney, NSW, 2052, Australia
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14
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Xiong S, Sun W, Chen R, Yuan Z, Cheng X. Fluorescent dialdehyde-BODIPY chitosan hydrogel and its highly sensing ability to Cu 2+ ion. Carbohydr Polym 2021; 273:118590. [PMID: 34560991 DOI: 10.1016/j.carbpol.2021.118590] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 07/26/2021] [Accepted: 08/18/2021] [Indexed: 11/19/2022]
Abstract
Fluorescent hydrogel with proper hydrophilicity and thermal stability, excellent sensitivity and high selectivity has important practical and scientific significance, especially in heavy metal ion detection. In this work, by adjusting the content of [2, 6-Bis-[4-formylthiophene]]-1,3,5,7-tetramethyl-8-phenyl-4, 4-difluoroborazaindoloene (B3), as a cross-linking agent, a series of chitosan- fluoroboron dipyrrole-chitosan-based fluorescent hydrogels (CBC) with large stokes shift were designed and prepared. The hydrogels can be used as fluorescent probes for identifying Cu2+ in aqueous solution. The linear quenching range of Cu2+ is 0-50 μM, and the detection limit and quenching constant are 4.75 μM and 3.52 × 104 M-1, respectively. Under the interaction of Cu2+, the imine bond CN was converted to C- N bond, which causes the phenomenon of fluorescence quenching. In addition, relatively high crosslink density improves hydrophilicity and thermal stability of initial chitosan, and made the swelling ability better.
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Affiliation(s)
- Shuangyu Xiong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Wei Sun
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Rong Chen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Zhiqiang Yuan
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Xinjian Cheng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China.
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15
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Dai Y, Wang R, Chen F, Zhang Y, Liu Y, Huang H, Yang P, Zhang R, Zheng B, Gao C, Chen Y, Tao L. Clinical outcomes in 2481 unselected real-world patients treated with a polymer-free sirolimus-eluting stent: 3 years results from the NANO multicenter Registry. BMC Cardiovasc Disord 2021; 21:537. [PMID: 34772347 PMCID: PMC8588634 DOI: 10.1186/s12872-021-02356-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 10/28/2021] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES To evaluate the 3-year clinical outcomes of a polymer-free sirolimus-eluting, Nano plus stent for the treatment of coronary artery disease in the NANO multicenter Registry. BACKGROUND The long-term clinical data evaluating the safety and efficacy of the novel polymer-free sirolimus-eluting Nano plus stent (Lepu Medical, Beijing, China) is limited. METHODS The NANO all-comers Registry trial was a prospective, multicenter clinical registry conducted in 26 centers in China between August 2016 and January 2017. A total of 2481 consecutive patients were exclusively treated with the Nano plus stent. The primary clinical endpoint, target lesion failure (TLF, defined as cardiac death, target vessel nonfatal myocardial infarction, and clinically driven target lesion revascularization [CD-TLR]), was analyzed at 3 years. RESULTS At 3 years, 2295 patients (92.5%) were followed. The incidence of TLF was 6.8% (168/2481). The rate of cardiac death was 3.8% (94/2481), target vessel nonfatal myocardial infarction 0.7% (18/2481), and CD-TLR 2.9% (68/2481). The rate of definite/probable stent thrombosis was 0.5% (13/2481). The risk factors of diabetes mellitus, acute myocardial infarction, age, chronic renal failure, in-stent restenosis, chronic total occlusion, and left ventricular ejection fraction < 40% were the independent predictors of 3-year TLF. CONCLUSIONS At three years, the rate of TLF was relatively low in patients treated with the polymer-free Nano plus stent. The polymer-free Nano plus stent showed a favorable safety and efficacy profile in real-world patients. Clinical trial registration URL: https://www.clinicaltrials.gov/ . Unique identifier: NCT02929030.
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Affiliation(s)
- Yi Dai
- Medical School of Nankai University, Tianjin, China
| | - Rutao Wang
- Department of Cardiology, The First Affiliated Hospital of The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Fengying Chen
- Department of Cardiology, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Yaojun Zhang
- Department of Cardiology, Xuzhou Third People's Hospital, Xuzhou Medical University, Xuzhou, China
| | - Yi Liu
- Department of Cardiology, The First Affiliated Hospital of The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - He Huang
- Department of Cardiology, Xiangtan Central Hospital, Xiangtan, China
| | - Ping Yang
- Department of Cardiology, China Japan Union Hospital of Jilin University, Changchun, China
| | - Ruining Zhang
- Department of Cardiology, The First Affiliated Hospital of The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Bo Zheng
- Department of Cardiology, The First Affiliated Hospital of The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chao Gao
- Department of Cardiology, The First Affiliated Hospital of The Fourth Military Medical University, Xi'an, Shaanxi, China.
- Xijing Hospital, 127 Changle west road, Xi'an, 710032, China.
| | - Yundai Chen
- Medical School of Nankai University, Tianjin, China.
- Department of Cardiology, The Chinese PLA General Hospital, 28 Fu xing road, Beijing, 100853, China.
| | - Ling Tao
- Department of Cardiology, The First Affiliated Hospital of The Fourth Military Medical University, Xi'an, Shaanxi, China.
- Xijing Hospital, 127 Changle west road, Xi'an, 710032, China.
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16
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Long Y, Cheng X, Tang Q, Chen L. The antigenicity of silk-based biomaterials: sources, influential factors and applications. J Mater Chem B 2021; 9:8365-8377. [PMID: 34542139 DOI: 10.1039/d1tb00752a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Silk is an ancient material with essential roles in numerous biomedical applications, such as tissue regeneration and drug delivery, because of its excellent tunable mechanical properties and diverse physical structures. In addition to the necessary functionalities for biomedical applications, another critical factor for materials applied in biology is the appropriate immune interactions with the body. This review focuses on the immune responses of silk-based materials applied in biomedical applications, specifically antigenicity. The factors affecting the antigenicity of silk-based materials are complicated and are related to the composition and structural characteristics of the materials. At the same time, the composition of silk-based materials varies with its species sources, such as silkworms, spiders, honey bees, or engineered recombinant silk. Additionally, different processing methods are used to fabricate different material formats, such as films, hydrogels, scaffolds, particles, and fibers, resulting in different structural characteristics. Furthermore, the resulting body reactions are also different with different degrees of the immune response. Silk protein typically induces a mild immune response, and immunogenicity can play active roles in osteogenesis, angiogenesis, and protection from inflammation. However, there are some rare reports of severe immune responses caused by silk, which can result in an allergic response or tissue necrosis. The source of allergenicity in silk-based materials is currently under-studied and how to regulate and eliminate the overreaction of the immune system is essential for further applications. Overall, the diverse characteristics of silk-based materials mostly show beneficial bioresponses with mild immunogenicity, and the tunable properties make it applicable in immune-related biomedical applications.
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Affiliation(s)
- Yanlin Long
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China. .,School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Xian Cheng
- Department of Dentistry - Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25, 6525 EX Nijmegen, The Netherlands
| | - Qingming Tang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China. .,School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China. .,School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
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17
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Liu F, Wang X, Li S, Liao Y, Zhan X, Tao A, Zheng F, Li H, Su Y, Jiang J, Li C. Strontium-Loaded Nanotubes of Ti-24Nb-4Zr-8Sn Alloys for Biomedical Implantation. J Biomed Nanotechnol 2021; 17:1812-1823. [PMID: 34688326 DOI: 10.1166/jbn.2021.3160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Ti-24Nb-4Zr-8Sn (Ti2448) alloys, with a relatively low elastic modulus and unique mechanical properties, are desirable materials for oral implantation. In the current study, a multifaceted strontium-incorporating nanotube coating was fabricated on a Ti2448 alloy (Ti2-NTSr) through anodization and hydrothermal procedures. In vitro, the Ti2-NTSr specimens demonstrated better osteogenic properties and more favorable osteoimmunomodulatory abilities. Moreover, macrophages on Ti2-NTSr specimens could improve the recruitment and osteogenic differentiation of osteoblasts. In vivo, dense clots with highly branched, thin fibrins and small pores existed on the Ti2-NTSr implant in the early stage after surgery. Analysis of the deposition of Ca and P elements, hard tissue slices and the bone-implant contact rate (BIC%) of the Ti2-NTSr implants also showed superior osseointegration. Taken together, these results demonstrate that the Ti2-NTSr coating may maximize the clinical outcomes of Ti2448 alloys for implantation applications.
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Affiliation(s)
- Fei Liu
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Xinyu Wang
- Jiamusi University Affiliated Stomatological Hospital, Heilongjiang Key Laboratory of Oral Biomedical Materials and Clinical Application, Jiamusi, 154000, China
| | - Shujun Li
- Titanium Alloy Laboratory, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Yiheng Liao
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Xinxin Zhan
- Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Anqi Tao
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Fu Zheng
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Huazhi Li
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Yucheng Su
- Dental Implant Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100032, China
| | - Jiuhui Jiang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Cuiying Li
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, China
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18
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Thankam FG, Diaz C, Chandra I, Link J, Newton J, Dilisio MF, Agrawal DK. Hybrid interpenetrating hydrogel network favoring the bidirectional migration of tenocytes for rotator cuff tendon regeneration. J Biomed Mater Res B Appl Biomater 2021; 110:467-477. [PMID: 34342931 DOI: 10.1002/jbm.b.34924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 06/26/2021] [Accepted: 07/25/2021] [Indexed: 02/02/2023]
Abstract
Replenishment of tenocytes to the injury site is an ideal strategy to improve healing response and accelerate the tendon ECM regeneration. The present study focused on the synthesis and characterization of a hybrid hydrogel scaffold system poly(propylene-fumarate)-alginate-polyvinyl alcohol-acrylic acid (PAPA) using poly(propylene-fumarate) (PPF), alginate, polyvinyl alcohol (PVA) and acrylic acid and the in vitro investigation of bidirectional mobility of swine shoulder tenocytes (SST) for its potential application in rotator-cuff tendon regeneration. IR analysis revealed the presence of alginate, PPF and PVA segments on the surface, SEM and AFM analyses revealed the porous and nano-topographical features of PAPA, respectively, swelling was 712.6 ± 84.21% with the EWC (%) of 87.59 ± 1.26 having the diffusional exponent and swelling constant 0.551 and 1.8, respectively. PAPA was biodegradable, cytocompatible and supported long-term survival of SSTs. SEM imaging revealed the adhesion, colonization, and sheet formation of SSTs within the PAPA hydrogel network. The SSTs seeded on the PAPA scaffolds were peculiar for their bidirectional migration as the anterograde movement was completed in 9 days whereas the retrograde infiltration occurred up to the depth of 198 μm. These findings suggest the promising translational potential of PAPA scaffold system in the management of rotator cuff tendon injury.
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Affiliation(s)
- Finosh G Thankam
- Department of Translational Research, Western University of Health Sciences, Pomona, California, USA
| | - Connor Diaz
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, Nebraska, USA
| | - Isaiah Chandra
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, Nebraska, USA
| | - Josh Link
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, Nebraska, USA
| | - Joseph Newton
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, Nebraska, USA
| | - Matthew F Dilisio
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, Nebraska, USA
| | - Devendra K Agrawal
- Department of Translational Research, Western University of Health Sciences, Pomona, California, USA
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Jinnouchi H, Kutyna M, Torii S, Cheng Q, Sakamoto A, Guo L, Cornelissen A, Perkins L, Hossainy S, Pacetti S, Kolodgie F, Virmani R, Finn A. Comparison of acute thrombogenicity and albumin adsorption in three different durable polymer coronary drug-eluting stents. EUROINTERVENTION 2021; 17:248-256. [PMID: 32149708 PMCID: PMC9725074 DOI: 10.4244/eij-d-19-00938] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND The relative thrombogenicity and albumin adsorption and retention of different durable polymers used in coronary stents has not been tested. AIMS This study sought to compare the thromboresistance and albumin binding capacity of different durable polymer drug-eluting stents (DES) using dedicated preclinical and in vitro models. METHODS In an ex vivo swine arteriovenous shunt model, a fluoropolymer everolimus-eluting stent (FP-EES) (n=14) was compared with two durable polymer DES, the BioLinx polymer-coated zotarolimus-eluting stent (BL-ZES) (n=9) and a CarboSil elastomer polymer-coated ridaforolimus-eluting stent (EP-RES) (n=6), and bare metal stents (BMS) (n=10). Stents underwent immunostaining using a cocktail of antiplatelet antibodies and a marker for inflammation and were then evaluated by confocal microscopy (CM). Albumin retention was assessed using a flow loop model with labelled human serum albumin (FP-EES [n=8], BL-ZES [n=4], EP-RES [n=4], and BMS [n=7]), and scanned by CM. RESULTS The area of platelet adherence (normalised to total stent surface area) was lower in the order FP-EES (9.8%), BL-ZES (32.7%), EP-RES (87.6%) and BMS (202.0%), and inflammatory cell density was least for FP-EES <BL-ZES <EP-RES <BMS. Although nearly full coverage by albumin binding was shown for all durable polymer DES, FP-EES showed significantly greater intensity of albumin as compared to BL-ZES, EP-RES and BMS (FP-EES 79.0%; BL-ZES 13.2%; EP-RES 6.1%; BMS 1.5%). CONCLUSIONS These results suggest that thromboresistance and albumin retention vary by polymer type and that these differences might result in different suitability for short-term dual antiplatelet therapy.
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Affiliation(s)
| | | | - Sho Torii
- CVPath Institute, Gaithersburg, MD, USA
| | - Qi Cheng
- CVPath Institute, Gaithersburg, MD, USA
| | | | - Liang Guo
- CVPath Institute, Gaithersburg, MD, USA
| | | | | | | | | | | | | | - Aloke Finn
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, USA
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20
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Promoting musculoskeletal system soft tissue regeneration by biomaterial-mediated modulation of macrophage polarization. Bioact Mater 2021; 6:4096-4109. [PMID: 33997496 PMCID: PMC8091177 DOI: 10.1016/j.bioactmat.2021.04.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/27/2021] [Accepted: 04/12/2021] [Indexed: 02/06/2023] Open
Abstract
Musculoskeletal disorders are common in clinical practice. Repairing critical-sized defects in musculoskeletal systems remains a challenge for researchers and surgeons, requiring the application of tissue engineering biomaterials. Successful application depends on the response of the host tissue to the biomaterial and specific healing process of each anatomical structure. The commonly-held view is that biomaterials should be biocompatible to minimize local host immune response. However, a growing number of studies have shown that active modulation of the immune cells, particularly macrophages, via biomaterials is an effective way to control immune response and promote tissue regeneration as well as biomaterial integration. Therefore, we critically review the role of macrophages in the repair of injured musculoskeletal system soft tissues, which have relatively poor regenerative capacities, as well as discuss further enhancement of target tissue regeneration via modulation of macrophage polarization by biomaterial-mediated immunomodulation (biomaterial properties and delivery systems). This active regulation approach rather than passive-evade strategy maximizes the potential of biomaterials to promote musculoskeletal system soft tissue regeneration and provides alternative therapeutic options for repairing critical-sized defects. Different phenotypes of macrophages play a crucial role in musculoskeletal system soft tissue regeneration. Biomaterials and biomaterial-based delivery systems can be utilized to modulate macrophage polarization. This review summarizes immunomodulatory biomaterials to spur musculoskeletal system soft tissue regeneration.
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21
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Cornelissen A, Kutyna M, Cheng Q, Sato Y, Kawakami R, Sakamoto A, Kawai K, Mori M, Fernandez R, Guo L, Pellegrini D, Guagliumi G, Barakat M, Virmani R, Finn A. Effects of simulated COVID-19 cytokine storm on stent thrombogenicity. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2021; 35:129-138. [PMID: 33863660 PMCID: PMC8026249 DOI: 10.1016/j.carrev.2021.03.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/15/2021] [Accepted: 03/30/2021] [Indexed: 01/09/2023]
Abstract
Background Cytokine storm-related hypercoagulation may be important in the pathogenesis of stent thrombosis in patients with SARS-CoV-2. Whether stent polymers behave differently under such conditions has never been explored. Methods Fluorinated polymer-nanocoated and uncoated COBRA stents (CeloNova), BioLinx-polymer-coated Resolute Onyx stents (Medtronic), and Synergy stents (Boston Scientific), which are abluminally coated with a bioabsorbable polymer, were exposed to human blood from healthy donors which was supplemented with 400 pg/mL IL-6 and 100 pg/mL TNF-α, similar to what is seen in cytokine storm caused by SARS-CoV-2. Platelet adhesion and neutrophil activation, assessed by immunofluorescence, were compared under cytokine storm and control conditions (untreated blood) (n = 4 experimental runs). Results Platelet adhesion values, defined as %platelet-covered area x staining intensity, were significantly lower in coated and uncoated COBRA and in Resolute Onyx than in Synergy under control conditions (1.28 × 107 ± 0.43 × 107 vs. 2.92 × 107 ± 0.49 × 107 vs. 3.57 × 107 ± 0.73 × 107 vs. 9.94 × 107 ± 0.99 × 107; p ≤0.0001). In cytokine storm, platelet adhesion values remained low in coated COBRA-PzF (1.78 × 107 ± 0.38 × 107) compared to all other devices (uncoated COBRA: 5.92 × 107 ± 0.96 × 107; Resolute Onyx: 7.27 × 107 ± 1.82 × 107; Synergy: 11.28 × 107 ± 1.08 × 107; p ≤ 0.0001). Although cytokine storm conditions significantly increased neutrophil activation in all stents, it was significantly less in coated and uncoated COBRA, and in Resolute Onyx than in Synergy. Conclusions Blood-biomaterials interactions may determine the thrombogenic potential of stents. Under simulated cytokine storm conditions, fluoropolymer-coated stents showed the most favorable anti-thrombogenic and anti-inflammatory properties.
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Affiliation(s)
- Anne Cornelissen
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America; Department of Internal Medicine I, University Hospital Aachen, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Matthew Kutyna
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America
| | - Qi Cheng
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America
| | - Yu Sato
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America
| | - Rika Kawakami
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America
| | - Atsushi Sakamoto
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America
| | - Kenji Kawai
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America
| | - Masayuki Mori
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America
| | - Raquel Fernandez
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America
| | - Liang Guo
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America
| | - Dario Pellegrini
- Interventional Cardiology, Cardiovascular Department, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - Giulio Guagliumi
- Interventional Cardiology, Cardiovascular Department, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - Mark Barakat
- CeloNova Biosciences, 8023 Vantage Dr, Ste 1400 San Antonio, TX 78230, United States of America
| | - Renu Virmani
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America
| | - Aloke Finn
- CVPath Institute, Inc., 19 Firstfield Road, Gaithersburg, MD 20878, United States of America.
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22
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Negrescu AM, Cimpean A. The State of the Art and Prospects for Osteoimmunomodulatory Biomaterials. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1357. [PMID: 33799681 PMCID: PMC7999637 DOI: 10.3390/ma14061357] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/04/2021] [Accepted: 03/08/2021] [Indexed: 12/14/2022]
Abstract
The critical role of the immune system in host defense against foreign bodies and pathogens has been long recognized. With the introduction of a new field of research called osteoimmunology, the crosstalk between the immune and bone-forming cells has been studied more thoroughly, leading to the conclusion that the two systems are intimately connected through various cytokines, signaling molecules, transcription factors and receptors. The host immune reaction triggered by biomaterial implantation determines the in vivo fate of the implant, either in new bone formation or in fibrous tissue encapsulation. The traditional biomaterial design consisted in fabricating inert biomaterials capable of stimulating osteogenesis; however, inconsistencies between the in vitro and in vivo results were reported. This led to a shift in the development of biomaterials towards implants with osteoimmunomodulatory properties. By endowing the orthopedic biomaterials with favorable osteoimmunomodulatory properties, a desired immune response can be triggered in order to obtain a proper bone regeneration process. In this context, various approaches, such as the modification of chemical/structural characteristics or the incorporation of bioactive molecules, have been employed in order to modulate the crosstalk with the immune cells. The current review provides an overview of recent developments in such applied strategies.
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Affiliation(s)
| | - Anisoara Cimpean
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania;
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23
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Debarun D, Wolffsohn JS. Effect of large diameter and plasma coating on the initial adaptation of gas permeable contact lens fitting for neophytes. Cont Lens Anterior Eye 2021; 44:76-80. [DOI: 10.1016/j.clae.2020.08.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/24/2020] [Accepted: 08/27/2020] [Indexed: 12/16/2022]
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24
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Zhang Y, He J, Chen H, Xiong C. A new hydrophilic biodegradable ureteral stent restrain encrustation both in vitro and in vivo. J Biomater Appl 2021; 35:720-731. [PMID: 32799701 DOI: 10.1177/0885328220949376] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Ureteral stents have been widely used as biomedical devices to treat some urological diseases for several decades. However, the encrustation complications hamper the long-time clinical use of the ureteral stents. In this work, a new type of biodegradable material for the ureteral stents, methoxypoly(ethylene glycol)-block-poly(L-lactide-ran-Ɛ-caprolactone) (mPEG-PLACL), is evaluated to overcome this problem. The results show that the hydrophilicity and degradation rate in artificial urine of mPEG-PLACL are both significantly increased. It is worth noting that the mPEG-PLACL shows a lower amount of encrustation after immersing the stents in the dynamic urinary extracorporeal circulation (DUEC) model for 7 days. In addition, 71% Ca and 92% Mg are inhibited in vivo by quantitative analysis. Pathological analysis exhibit that the mPEG-PLACL cause less diffuse mucosal hyperplasia after 7 weeks of implantation. All the results indicate that this new type of biodegradable material had an excellent potential for the ureteral stents in the future.
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Affiliation(s)
- Yu Zhang
- 26444Chengdu Institute of Organic Chemistry CAS, Chengdu, China
| | - Jian He
- 26444Chengdu Institute of Organic Chemistry CAS, Chengdu, China
| | - Hechun Chen
- 26444Chengdu Institute of Organic Chemistry CAS, Chengdu, China
| | - Chengdong Xiong
- 26444Chengdu Institute of Organic Chemistry CAS, Chengdu, China
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25
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Wang Y, Bruggeman KF, Franks S, Gautam V, Hodgetts SI, Harvey AR, Williams RJ, Nisbet DR. Is Viral Vector Gene Delivery More Effective Using Biomaterials? Adv Healthc Mater 2021; 10:e2001238. [PMID: 33191667 DOI: 10.1002/adhm.202001238] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/03/2020] [Indexed: 12/16/2022]
Abstract
Gene delivery has been extensively investigated for introducing foreign genetic material into cells to promote expression of therapeutic proteins or to silence relevant genes. This approach can regulate genetic or epigenetic disorders, offering an attractive alternative to pharmacological therapy or invasive protein delivery options. However, the exciting potential of viral gene therapy has yet to be fully realized, with a number of clinical trials failing to deliver optimal therapeutic outcomes. Reasons for this include difficulty in achieving localized delivery, and subsequently lower efficacy at the target site, as well as poor or inconsistent transduction efficiency. Thus, ongoing efforts are focused on improving local viral delivery and enhancing its efficiency. Recently, biomaterials have been exploited as an option for more controlled, targeted and programmable gene delivery. There is a growing body of literature demonstrating the efficacy of biomaterials and their potential advantages over other delivery strategies. This review explores current limitations of gene delivery and the progress of biomaterial-mediated gene delivery. The combination of biomaterials and gene vectors holds the potential to surmount major challenges, including the uncontrolled release of viral vectors with random delivery duration, poorly localized viral delivery with associated off-target effects, limited viral tropism, and immune safety concerns.
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Affiliation(s)
- Yi Wang
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
| | - Kiara F. Bruggeman
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
| | - Stephanie Franks
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
| | - Vini Gautam
- Department of Biomedical Engineering The University of Melbourne Melbourne Victoria 3010 Australia
| | - Stuart I. Hodgetts
- School of Human Sciences The University of Western Australia Perth WA 6009 Australia
- Perron Institute for Neurological and Translational Science Perth WA 6009 Australia
| | - Alan R. Harvey
- School of Human Sciences The University of Western Australia Perth WA 6009 Australia
- Perron Institute for Neurological and Translational Science Perth WA 6009 Australia
| | - Richard J. Williams
- The Institute for Mental and Physical Health and Clinical Translation (IMPACT) School of Medicine Deakin University Waurn Ponds VIC 3216 Australia
- Biofab3D St. Vincent's Hospital Fitzroy 3065 Australia
| | - David R. Nisbet
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
- Biofab3D St. Vincent's Hospital Fitzroy 3065 Australia
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26
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Amphiphilic polymeric nanoparticles encapsulating curcumin: Antioxidant, anti-inflammatory and biocompatibility studies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 121:111793. [PMID: 33579443 DOI: 10.1016/j.msec.2020.111793] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/19/2020] [Accepted: 12/02/2020] [Indexed: 02/06/2023]
Abstract
Oxidative stress and inflammation are two related processes common to many diseases. Curcumin is a natural compound with both antioxidant and anti-inflammatory properties, among others, that is recently being used as a natural occurring product alternative to traditional drugs. However, it has a hydrophobic nature that compromises its solubility in physiological fluids and its circulation time and also presents cytotoxicity problems in its free form, limiting the range of concentrations to be used. In order to overcome these drawbacks and taking advantage of the benefits of nanotechnology, the aim of this work is the development of curcumin loaded polymeric nanoparticles that can provide a controlled release of the drug and enlarge their application in the treatment of inflammatory and oxidative stress related diseases. Specifically, the vehicle is a bioactive terpolymer based on a α-tocopheryl methacrylate, 1-vinyl-2-pyrrolidone and N-vinylcaprolactam. Nanoparticles were obtained by nanoprecipitation and characterized in terms of size, morphology, stability, encapsulation efficiency and drug release. In vitro cellular assays were performed in human articular chondrocyte and RAW 264.7 cultures to assess cytotoxicity, cellular uptake, antioxidant and anti-inflammatory properties. The radical scavenging activity of the systems was confirmed by the DPPH test and the quantification of cellular reactive oxygen species. The anti-inflammatory potential of these systems was demonstrated by the reduction of different pro-inflammatory factors such as IL-8, MCP and MIP in chondrocytes; and nitric oxide, IL-6, TNF-α and MCP-1, among others, in RAW 264.7. Finally, the in vivo biocompatibility was confirmed in a rat model by subcutaneously injecting the nanoparticle dispersions. The reduction of curcumin toxicity and the antioxidant, anti-inflammatory and biocompatibility properties open the door to deeper in vitro and in vivo research on these curcumin loaded polymeric nanoparticles to treat inflammation and oxidative stress based diseases.
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27
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Navaei T, Milan PB, Samadikuchaksaraei A, Davari HR, Hardy JG, Mozafari M. Design and fabrication of polycaprolactone/gelatin composite scaffolds for diaphragmatic muscle reconstruction. J Tissue Eng Regen Med 2020; 15:78-87. [PMID: 33175464 DOI: 10.1002/term.3151] [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: 11/03/2019] [Revised: 10/04/2020] [Accepted: 10/20/2020] [Indexed: 11/08/2022]
Abstract
Diaphragmatic wall defects caused by congenital disorders or disease remain a major challenge for physicians worldwide. Polymeric patches have been extensively explored within research laboratories and the clinic for soft tissue and diaphragm reconstruction. However, patch usage may be associated with allergic reaction, infection, granulation, and recurrence of the hernia. In this study, we designed and fabricated a porous scaffold using a combination of 3D printing and freeze-drying techniques. A 3D printed polycaprolactone (PCL) mesh was used to reinforcegelatin scaffolds, representing an advantage over previously reported examples since it provides mechanical strength and flexibility. In vitro studies showed that adherent cells were anchorage-dependent and grew as a monolayer attached to the scaffolds. Microscopic observations indicated better cell attachments for the scaffolds with higher gelatin content as compared with the PCL control samples. Tensile testing demonstrated the mechanical strength of samples was significantly greater than adult diaphragm tissue. The biocompatibility of the specimens was investigated in vivo using a subcutaneous implantation method in Bagg albino adult mice for 20 days, with the results indicating superior cellular behavior and attachment on scaffolds containing gelatin in comparison to pure PCL scaffolds, suggesting that the porous PCL/gelatin scaffolds have potential as biodegradable and flexible constructs for diaphragm reconstruction.
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Affiliation(s)
- Tina Navaei
- Cellular and Molecular Research Center (CMRC), Iran University of Medical Sciences (IUMS), Tehran, Iran.,Department of Tissue Engineering & Regenerative Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Peiman Brouki Milan
- Cellular and Molecular Research Center (CMRC), Iran University of Medical Sciences (IUMS), Tehran, Iran.,Department of Tissue Engineering & Regenerative Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Ali Samadikuchaksaraei
- Cellular and Molecular Research Center (CMRC), Iran University of Medical Sciences (IUMS), Tehran, Iran.,Department of Tissue Engineering & Regenerative Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Hamid Reza Davari
- Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran
| | - John G Hardy
- Department of Chemistry, Lancaster University, Lancaster, UK.,Materials Science Institute, Lancaster University, Lancaster, UK
| | - Masoud Mozafari
- Cellular and Molecular Research Center (CMRC), Iran University of Medical Sciences (IUMS), Tehran, Iran.,Department of Tissue Engineering & Regenerative Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
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28
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Choe JC, Park JH, Lee HC, Park TS, Ahn J, Park JS, Lee HW, Oh JH, Choi JH, Cha KS, Yim C, Jeon S. Histopathologic response after hydrophilic polyethylene glycol-coating stent and hydrophobic octadecylthiol-coating stent implantations in porcine coronary restenosis model. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:122. [PMID: 33247775 DOI: 10.1007/s10856-020-06452-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 12/07/2019] [Accepted: 10/27/2020] [Indexed: 06/12/2023]
Abstract
Device-related problems of drug-eluting stents, including stent thrombosis related to antiproliferative drugs and polymers, can cause adverse events such as inflammation and neointimal hyperplasia. Stent surface modification, wherein the drug and polymer are not required, may overcome these problems. We developed hydrophilic polyethylene glycol (PEG)-coating and hydrophobic octadecylthiol (ODT)-coating stents without a drug and polymer and evaluated their histopathologic response in a porcine coronary restenosis model. PEG-coating stents (n = 12), bare-metal stents (BMS) (n = 12), and ODT-coating stents (n = 10) were implanted with oversizing in 34 porcine coronary arteries. Four weeks later, the histopathologic response, arterial injury, inflammation, and fibrin scores were analyzed. A p value < 0.05 was considered statistically significant. There were significant differences in the internal elastic lamina area, lumen area, neointimal area, percent area of stenosis, arterial injury score, inflammation score, and fibrin score among the groups. Compared to the BMS or ODT-coating stent group, the PEG-coating stent group had significantly increased internal elastic lamina and lumen area (all p < 0.001) and decreased neointimal area and percent area of stenosis (BMS: p = 0.03 and p < 0.001, respectively; ODT-coating: p = 0.013 and p < 0.001, respectively). Similarly, the PEG-coating group showed significantly lower inflammation and fibrin scores than the BMS or ODT-coating groups (BMS: p = 0.013 and p = 0.007, respectively; ODT-coating: p = 0.014 and p = 0.008, respectively). In conclusion, hydrophilic PEG-coating stent implantation was associated with lower inflammatory response, decreased fibrin deposition, and reduced neointimal hyperplasia than BMS or hydrophobic ODT-coating stent implantation in the porcine coronary restenosis model.
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Affiliation(s)
- Jeong Cheon Choe
- Division of Cardiology, Medical Research Institute, Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Jong Ha Park
- Division of Cardiology, Medical Research Institute, Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Han Cheol Lee
- Division of Cardiology, Medical Research Institute, Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea.
| | - Tae Sik Park
- Division of Cardiology, Medical Research Institute, Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Jinhee Ahn
- Division of Cardiology, Medical Research Institute, Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Jin Sup Park
- Division of Cardiology, Medical Research Institute, Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Hye Won Lee
- Division of Cardiology, Medical Research Institute, Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Jun-Hyok Oh
- Division of Cardiology, Medical Research Institute, Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Jung Hyun Choi
- Division of Cardiology, Medical Research Institute, Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Kwang Soo Cha
- Division of Cardiology, Medical Research Institute, Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Changyong Yim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Sangmin Jeon
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
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29
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Díaz Lantada A, Franco-Martínez F, Hengsbach S, Rupp F, Thelen R, Bade K. Artificial Intelligence Aided Design of Microtextured Surfaces: Application to Controlling Wettability. NANOMATERIALS 2020; 10:nano10112287. [PMID: 33218132 PMCID: PMC7698866 DOI: 10.3390/nano10112287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/07/2020] [Accepted: 11/11/2020] [Indexed: 11/16/2022]
Abstract
Artificial intelligence (AI) has emerged as a powerful set of tools for engineering innovative materials. However, the AI-aided design of materials textures has not yet been researched in depth. In order to explore the potentials of AI for discovering innovative biointerfaces and engineering materials surfaces, especially for biomedical applications, this study focuses on the control of wettability through design-controlled hierarchical surfaces, whose design is supported and its performance predicted thanks to adequately structured and trained artificial neural networks (ANN). The authors explain the creation of a comprehensive library of microtextured surfaces with well-known wettability properties. Such a library is processed and employed for the generation and training of artificial neural networks, which can predict the actual wetting performance of new design biointerfaces. The present research demonstrates that AI can importantly support the engineering of innovative hierarchical or multiscale surfaces when complex-to-model properties and phenomena, such as wettability and wetting, are involved.
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Affiliation(s)
- Andrés Díaz Lantada
- Product Development Laboratory, Mechanical Engineering Department, Universidad Politécnica de Madrid, c/ José Gutiérrez Abascal 2, 28006 Madrid, Spain;
- Correspondence:
| | - Francisco Franco-Martínez
- Product Development Laboratory, Mechanical Engineering Department, Universidad Politécnica de Madrid, c/ José Gutiérrez Abascal 2, 28006 Madrid, Spain;
| | - Stefan Hengsbach
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (S.H.); (F.R.); (R.T.); (K.B.)
| | - Florian Rupp
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (S.H.); (F.R.); (R.T.); (K.B.)
| | - Richard Thelen
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (S.H.); (F.R.); (R.T.); (K.B.)
| | - Klaus Bade
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (S.H.); (F.R.); (R.T.); (K.B.)
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30
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Jo SB, Kim HK, Lee HN, Kim YJ, Dev Patel K, Campbell Knowles J, Lee JH, Song M. Physical Properties and Biofunctionalities of Bioactive Root Canal Sealers In Vitro. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1750. [PMID: 32899641 PMCID: PMC7559325 DOI: 10.3390/nano10091750] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/29/2020] [Accepted: 09/02/2020] [Indexed: 12/25/2022]
Abstract
Calcium silicate-based bioactive glass has received significant attention for use in various biomedical applications due to its excellent bioactivity and biocompatibility. However, the bioactivity of calcium silicate nanoparticle-incorporated bioactive dental sealer is not much explored. Herein, three commercially available bioactive root canal sealers (Endoseal MTA (EDS), Well-Root ST (WST), and Nishika Canal Sealer BG (NBG)) were compared with a resin-based control sealer (AH Plus (AHP)) in terms of physical, chemical, and biological properties. EDS and NBG showed 200 to 400 nm and 100 to 200 nm nanoparticle incorporation in the SEM image, respectively, and WST and NBG showed mineral deposition in Hank's balanced salt solution after 28 days. The flowability and film thickness of all products met the ISO 3107 standard. Water contact angle, linear dimensional changes, and calcium and silicate ion release were significantly different among groups. All bioactive root canal sealers released calcium ions, while NBG released ~10 times more silicon ions than the other bioactive root canal sealers. Under the cytocompatible extraction range, NBG showed prominent cytocompatibility, osteogenecity, and angiogenecity compared to other sealers in vitro. These results indicate that calcium silicate nanoparticle incorporation in dental sealers could be a potential strategy for dental periapical tissue regeneration.
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Affiliation(s)
- Seung Bin Jo
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Cheonan 31116, Korea; (S.B.J.); (Y.-J.K.); (K.D.P.); (J.C.K.)
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea
| | - Hyun Kyung Kim
- Department of Conservative Dentistry, College of Dentistry, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea; (H.K.K.); (H.N.L.)
| | - Hae Nim Lee
- Department of Conservative Dentistry, College of Dentistry, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea; (H.K.K.); (H.N.L.)
| | - Yu-Jin Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Cheonan 31116, Korea; (S.B.J.); (Y.-J.K.); (K.D.P.); (J.C.K.)
- Department of Biomaterials Science, College of Dentistry, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine Research Center, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea
| | - Kapil Dev Patel
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Cheonan 31116, Korea; (S.B.J.); (Y.-J.K.); (K.D.P.); (J.C.K.)
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine Research Center, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea
| | - Jonathan Campbell Knowles
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Cheonan 31116, Korea; (S.B.J.); (Y.-J.K.); (K.D.P.); (J.C.K.)
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London WC1E 6HH, UK
- The Discoveries Centre for Regenerative and Precision Medicine, Eastman Dental Institute, University College London, London WC1E 6HH, UK
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Cheonan 31116, Korea; (S.B.J.); (Y.-J.K.); (K.D.P.); (J.C.K.)
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea
- Department of Biomaterials Science, College of Dentistry, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine Research Center, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea
| | - Minju Song
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Cheonan 31116, Korea; (S.B.J.); (Y.-J.K.); (K.D.P.); (J.C.K.)
- Department of Conservative Dentistry, College of Dentistry, Dankook University, 119 Dandae-ro, Cheonan 31116, Korea; (H.K.K.); (H.N.L.)
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31
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Shaha RK, Merkel DR, Anderson MP, Devereaux EJ, Patel RR, Torbati AH, Willett N, Yakacki CM, Frick CP. Biocompatible liquid-crystal elastomers mimic the intervertebral disc. J Mech Behav Biomed Mater 2020; 107:103757. [DOI: 10.1016/j.jmbbm.2020.103757] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/23/2020] [Accepted: 03/28/2020] [Indexed: 12/01/2022]
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32
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Zhou X, Luo Z, Baidya A, Kim HJ, Wang C, Jiang X, Qu M, Zhu J, Ren L, Vajhadin F, Tebon P, Zhang N, Xue Y, Feng Y, Xue C, Chen Y, Lee K, Lee J, Zhang S, Xu C, Ashammakhi N, Ahadian S, Dokmeci MR, Gu Z, Sun W, Khademhosseini A. Biodegradable β-Cyclodextrin Conjugated Gelatin Methacryloyl Microneedle for Delivery of Water-Insoluble Drug. Adv Healthc Mater 2020; 9:e2000527. [PMID: 32364331 PMCID: PMC7462883 DOI: 10.1002/adhm.202000527] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Indexed: 02/05/2023]
Abstract
Transdermal delivery of water-insoluble drugs via hydrogel-based microneedle (MN) arrays is crucial for improving their therapeutic efficacies. However, direct loading of water-insoluble drug into hydrophilic matrices remains challenging. Here, a biodegradable MN array patch that is fabricated from naturally derived polymer conjugates of gelatin methacryloyl and β-cyclodextrin (GelMA-β-CD) is reported. When curcumin, an unstable and water-insoluble anticancer drug, is loaded as a model drug, its stability and solubility are improved due to the formation of an inclusion complex. The polymer-drug complex GelMA-β-CD/CUR can be formulated into MN arrays with sufficient mechanical strength for skin penetration and tunable drug release profile. Anticancer efficacy of released curcumin is observed in three-dimensional B16F10 melanoma models. The GelMA-β-CD/CUR MN exhibits relatively higher therapeutic efficacy through more localized and deeper penetrated manner compared with a control nontransdermal patch. In vivo studies also verify biocompatibility and degradability of the GelMA-β-CD MN arrays patch.
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Affiliation(s)
- Xingwu Zhou
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Zhimin Luo
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Avijit Baidya
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Han-Jun Kim
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Canran Wang
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Xing Jiang
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Moyuan Qu
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Jixiang Zhu
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Li Ren
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Fereshteh Vajhadin
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Chemistry, Yazd University, Yazd, 89195, Iran
| | - Peyton Tebon
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Niyuan Zhang
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yumeng Xue
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yudi Feng
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Chengbin Xue
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yi Chen
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - KangJu Lee
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Junmin Lee
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Shiming Zhang
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Chun Xu
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- School of Dentistry, The University of Queensland, Herston, QLD, 4006, Australia
| | - Nureddin Ashammakhi
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Samad Ahadian
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Mehmet Remzi Dokmeci
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Zhen Gu
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Wujin Sun
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ali Khademhosseini
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA, 90095, USA
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Eken GA, Acar MH. Heat triggered shape memory behavior of poly(tert-butyl acrylate) based star-block copolymers in physiological range. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kim YH, Her AY, Rha SW, Choi BG, Choi SY, Byun JK, Park Y, Kang DO, Jang WY, Kim W, Choi CU, Park CG, Seo HS. Comparison of the Major Clinical Outcomes for the Use of Endeavor® and Resolute Integrity® Zotarolimus-Eluting Stents During a Three-Year Follow-up. Glob Heart 2020; 15:4. [PMID: 32489777 PMCID: PMC7218769 DOI: 10.5334/gh.374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 12/20/2019] [Indexed: 11/20/2022] Open
Abstract
Background Endeavor®-zotarolimus-eluting stent (E-ZES) was the first ZES to be developed, and Resolute integrity®-ZES (I-ZES) has been developed more recently. Comparative studies on long-term usage of these two ZESs have been rare. Objectives The aim of this study was to compare the efficacy and safety of E-ZES and I-ZES during a long-term follow-up of patients who underwent percutaneous coronary intervention (PCI). Methods A total of 767 patients who underwent PCI with E-ZES or I-ZES were eligible for this study. The primary endpoint was the occurrence of major adverse cardiac events (MACEs), defined as the composite of all-cause death, non-fatal myocardial infarction (MI), and any repeat revascularization. The secondary endpoint was stent thrombosis (ST). Results After propensity score-matched (PSM) analysis, two PSM groups (193 pairs, n = 386, C-statistic = 0.824) were generated. During the 3-year follow-up period, the cumulative incidence of MACEs (hazard ratio [HR], 0.837; 95% confidence interval [CI], 0.464-1.508; p = 0.553) and ST (HR, 0.398; 95% CI, 0.077-2.052; p = 0.271) was similar for the E-ZES and I-ZES groups. Additionally, the cumulative incidences of all-cause death, cardiac death, non-fatal MI, and any repeat revascularization were not significantly different between the two groups. Conclusions Although I-ZES utilizes a more advanced stent platform, stent design, and polymer system than E-ZES, both the ZESs showed comparable efficacy and safety during the 3-year follow-up period in this single-center, all-comers registry. However, further large-scaled, randomized, well-controlled trials with long-term follow-up are needed to verify these results.
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Affiliation(s)
- Yong Hoon Kim
- Division of Cardiology, Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, KR
| | - Ae-Young Her
- Division of Cardiology, Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, KR
| | - Seung-Woon Rha
- Cardiovascular Center, Korea University Guro Hospital, Seoul, KR
| | - Byoung Geol Choi
- Cardiovascular Center, Korea University Guro Hospital, Seoul, KR
| | - Se Yeon Choi
- Cardiovascular Center, Korea University Guro Hospital, Seoul, KR
| | - Jae Kyeong Byun
- Department of Medicine, Korea University Graduate School, KR
| | - Yoonjee Park
- Cardiovascular Center, Korea University Guro Hospital, Seoul, KR
| | - Dong Oh Kang
- Cardiovascular Center, Korea University Guro Hospital, Seoul, KR
| | - Won Young Jang
- Cardiovascular Center, Korea University Guro Hospital, Seoul, KR
| | - Woohyeun Kim
- Cardiovascular Center, Korea University Guro Hospital, Seoul, KR
| | - Cheol Ung Choi
- Cardiovascular Center, Korea University Guro Hospital, Seoul, KR
| | - Chang Gyu Park
- Cardiovascular Center, Korea University Guro Hospital, Seoul, KR
| | - Hong Seog Seo
- Cardiovascular Center, Korea University Guro Hospital, Seoul, KR
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He J, Chen G, Liu M, Xu Z, Chen H, Yang L, Lv Y. Scaffold strategies for modulating immune microenvironment during bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 108:110411. [PMID: 31923946 DOI: 10.1016/j.msec.2019.110411] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 10/21/2019] [Accepted: 11/07/2019] [Indexed: 12/18/2022]
Abstract
Implanted bone scaffolds often fail to successfully integrate with the host tissue because they do not elicit a favorable immune reaction. Properties of bone scaffold not only provide mechanical and chemical signals to support cell adhesion, migration, proliferation and differentiation, but also play a pivotal role in determining the extent of immune response during bone regeneration. Appropriate design parameters of bone scaffold are of great significance in the process of developing a new generation of bone implants. Herein, this article addresses the recent advances in the field of bone scaffolds for immune response, particularly focusing on the physical and chemical properties of bone scaffold in manipulating the host response. Furthermore, incorporation of bioactive molecules and cells with immunoregulatory function in bone scaffolds are also presented. Finally, continuing challenges and future directions of scaffold-based strategies for modulating immune microenvironment are discussed.
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Affiliation(s)
- Jianhua He
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China.
| | - Guobao Chen
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China
| | - Mengying Liu
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China
| | - Zhiling Xu
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China.
| | - Hua Chen
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, PR China.
| | - Li Yang
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China.
| | - Yonggang Lv
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China.
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Chu C, Liu L, Rung S, Wang Y, Ma Y, Hu C, Zhao X, Man Y, Qu Y. Modulation of foreign body reaction and macrophage phenotypes concerning microenvironment. J Biomed Mater Res A 2019; 108:127-135. [PMID: 31515867 DOI: 10.1002/jbm.a.36798] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 08/20/2019] [Accepted: 09/04/2019] [Indexed: 02/05/2023]
Abstract
The foreign body reaction (FBR) is described as a local chronic inflammation after implantation of biomaterials in which macrophages involved intimately. At the stage of acute inflammation, mast cells release histamine, Interleukin-4 (IL-4) and Interleukin-13 (IL-13), enhancing recruitment, and fusion of macrophages in the following phase. As for chronic intensive inflammation, degradation of biomaterials would be promoted by macrophage-derived foreign body giant cells releasing degradative enzymes, acid and reactive oxygen intermediates. Nevertheless, it could be seen as a breakthrough point for regulating FBR, considering the dominant role of the macrophage in the immune response as exemplified by the decrease of IL-4 and IL-13, stabilizing an appropriate balance between two macrophage phenotypes, selectively suppressing some function of macrophages, and so on. Moreover, the relationship between macrophages polarization and the development of a fibrous capsule, which increase the possibility of implantation failure, will be illustrated later. This review aims at providing readers a comprehensive understanding of FBR and its correlative treatment strategy.
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Affiliation(s)
- Chenyu Chu
- State Key Laboratory of Biotherapy and Laboratory, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, China.,State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Li Liu
- State Key Laboratory of Biotherapy and Laboratory, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, China
| | - Shengan Rung
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuanjing Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuxing Ma
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chen Hu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiwen Zhao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yi Man
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yili Qu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Plasma deposited poly-oxazoline nanotextured surfaces dictate osteoimmunomodulation towards ameliorative osteogenesis. Acta Biomater 2019; 96:568-581. [PMID: 31271882 DOI: 10.1016/j.actbio.2019.06.058] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/26/2019] [Accepted: 06/27/2019] [Indexed: 12/11/2022]
Abstract
Developing "osteoimmune-smart" bone substitute materials have become the forefront of research in bone regeneration. Biocompatible polymer coatings are applied widely to improve the bioactivity of bone substitute materials. In this context, polyoxazolines (Pox) have attracted substantial attention recently due to properties such as biocompatibility, stability, and low biofouling. In view of these useful properties, it is interesting to explore the capacity of Pox as an osteoimmunomodulatory agent to generate a favorable osteoimmune environment for osteogenesis. We applied a technique called plasma polymerization and succeeded in preparing Pox-like coatings (Ppox) and engineered their nanotopography at the nanoscale. We found that Ppox switched macrophages towards M2 extreme, thus inhibiting the release of inflammatory cytokines. The underlying mechanism may be related to the suppression of TLR pathway. The generated osteoimmune environment improved osteogenesis while inhibited osteoclastogenesis. This may be related to the release of osteogenic factors, especially Wnt10b from macrophages. The addition of nanotopography (16 nm, 38 nm, 68 nm) can tune the Ppox-mediated inhibition on inflammation and osteoclastic activities, while no significant effects were observed within the tested nano sizes on the Ppox-mediated osteogenesis. These results collectively suggest that Ppox can be useful as an effective osteoiumunomodulatory agent to endow bone substitute materials with favourable osteoimmunomodulatory property. STATEMENT OF SIGNIFICANCE: In this study, we succeeded in preparing plasma deposited Pox-like nano-coatings (Ppox) via plasma polymerization and found that Ppox nanotopographies are useful osteoimmunomodulatory tools. Their osteoimmunodolatory effects and underlying mechanisms are unveiled. It is the first investigation into the feasibility of applying poly-oxazoline as an osteoimmunomodulatory agent. This expand the application of poly-oxazoline into the forefront in bone regeneration area for the development of advanced "osteoimmune-smart" bone substitute materials.
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Hamlet SM, Lee RS, Moon H, Alfarsi MA, Ivanovski S. Hydrophilic titanium surface‐induced macrophage modulation promotes pro‐osteogenic signalling. Clin Oral Implants Res 2019; 30:1085-1096. [DOI: 10.1111/clr.13522] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 07/30/2019] [Accepted: 07/31/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Stephen M. Hamlet
- Menzies Health Institute Queensland Griffith University Gold Coast Queensland Australia
- School of Dentistry and Oral Health Griffith University Gold Coast Queensland Australia
| | - Ryan S.B. Lee
- School of Dentistry and Oral Health Griffith University Gold Coast Queensland Australia
- School of Dentistry The University of Queensland Herston Queensland Australia
| | - Ho‐Jin Moon
- School of Dentistry and Oral Health Griffith University Gold Coast Queensland Australia
- Department of Dental Materials, School of Dentistry Kyung Hee University Seoul Republic of Korea Australia
| | | | - Sašo Ivanovski
- School of Dentistry The University of Queensland Herston Queensland Australia
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Dave K, Gomes VG. Interactions at scaffold interfaces: Effect of surface chemistry, structural attributes and bioaffinity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110078. [PMID: 31546353 DOI: 10.1016/j.msec.2019.110078] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 08/12/2019] [Accepted: 08/12/2019] [Indexed: 01/01/2023]
Abstract
Effective regenerative medicine relies on understanding the interplay between biomaterial implants and the adjoining cells. Scaffolds contribute by presenting sites for cellular adhesion, growth, proliferation, migration, and differentiation which lead to regeneration of tissues over desired periods of time. The fabrication and recruitment of scaffolds often fail to consider the interactions that occur at the interfaces, thereby risking rejection. This lack of knowledge on interfacial microenvironments and related exchanges often causes reduced cellular interactions, poor cell survival and intervention failure. Successful regenerative therapy requires scaffolds with bespoke biocompatibility, optimum pore structure, and cues for cell attachments. These factors determine the development of cellular affinity in scaffolds. For biomedical applications, a detailed understanding of scaffolds and their interfaces is required for better tuning of biomaterials to suit the microenvironments. In this review, we discuss the role of biointerfaces with a focus on surface chemistry, pore structure, scaffold hydro-affinity and their biointeractions. An understanding of the effect of scaffold interfacial properties is crucial for enhancing the progress of tissue engineering towards clinical applications.
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Affiliation(s)
- Khyati Dave
- The University of Sydney, School of Chemical and Biomolecular Engineering, Sydney, NSW 2006, Australia
| | - Vincent G Gomes
- The University of Sydney, School of Chemical and Biomolecular Engineering, Sydney, NSW 2006, Australia.
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Short-term stent coverage of second-generation zotarolimus-eluting durable polymer stents: Onyx one-month optical coherence tomography study. ADVANCES IN INTERVENTIONAL CARDIOLOGY 2019; 15:143-150. [PMID: 31497046 PMCID: PMC6727229 DOI: 10.5114/aic.2019.86009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 12/16/2018] [Indexed: 01/06/2023] Open
Abstract
Introduction To date the early strut coverage with the second-generation durable-polymer ONYX zotarolimus-eluting stent (O-ZES) is unknown. Aim Optical coherence tomography (OCT) assessed the strut coverage of O-ZES at thirty-day follow-up. Material and methods OCT was performed after implantation and at 1-month follow-up in 15 patients treated with O-ZES. Results Mean patient age was 67 ±7 years (73% males). The clinical presentation consisted of acute coronary syndromes (n = 13) and stable coronary disease (n = 2). Four (26%) patients had diabetes. OCT analysis was performed at baseline and 1-month follow-up in all stents. 378 cross-sections with 3582 struts were assessed at baseline and 3661 at follow-up. At follow-up, 88% struts were covered by tissue with a median thickness 37.91 μm (IQR: 22.32–64.15). Median in-stent area obstruction by neointima was 2.64% (IQR: 1.70–4.84). From the total stent covered area, 92.3% showed complete strut coverage. Homogeneous tissue was observed in 74% of cases. There were no differences in minimal lumen area (5.07 ±1.08 mm2 vs. 4.81 ±0.94 mm2, p = 0.125) or minimal stent area (4.95 ±1.22 mm2 vs. 4.92 ±0.99 mm2) at baseline and at follow-up. There were no differences in the rate of strut malapposition (4.3% vs. 5.7%, p = 0.417). For all stents, malapposition volume was 47.9 mm3 at baseline and 51.7 mm3 at follow-up, giving the late acquired stent malapposition volume of 3.8 mm3. Conclusions The second-generation durable polymer O-ZES showed favorable vessel healing at 30-day OCT follow-up.
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Zhou Y, Tan J, Wu J, Zhang Q, Andre J, Xi C, Chen Z, Meyerhoff ME. Nitric oxide releasing poly(vinylidene fluoride-co-hexafluoropropylene) films using a fluorinated nitric oxide donor to greatly decrease chemical leaching. Acta Biomater 2019; 90:112-121. [PMID: 30980938 PMCID: PMC6513704 DOI: 10.1016/j.actbio.2019.04.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/04/2019] [Accepted: 04/09/2019] [Indexed: 02/05/2023]
Abstract
Nitric oxide (NO) releasing polymers have been widely applied as biomaterials for a variety of biomedical implants and devices. However, the chemical leaching of NO donors and their byproduct species is almost always observed during the application of polymers doped with NO donors, unless the donor is covalently linked to the polymer. Herein, we report the first NO releasing poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) fluorinated copolymer prepared by incorporating a fluorinated S-nitrosothiol as the NO donor. Under physiological conditions, the resulting polymeric films can release NO for 16 days. Importantly, due to both fluorine-fluorine and electrostatic charge interactions between the fluorinated NO donor and the PVDF-HFP copolymer, the total chemical leaching of the fluorinated NO donor and its disulfide product after 9 day was only 0.6% (mol%) of the initial amount of NO donor loaded into the film. These new NO release PVDF-HFP films exhibit antimicrobial and anti-biofilm activities against both Gram positive S. aureus and Gram negative P. aeruginosa strains. The NO-releasing PVDF-HFP polymer can also be coated on Teflon tubing to release NO under physiological conditions for extended time periods. This NO-releasing PVDF-HFP copolymer with greatly reduced chemical leaching could help enhance the biocompatibility and antimicrobial activity of various biomedical devices. STATEMENT OF SIGNIFICANCE: Fluoropolymers have been widely used in creating various biomedical implants and devices. However, nitric oxide (NO) release fluoropolymers have not been well studied to date. Additionally, in the application of biomaterials doped with NO donors, a significant amount of NO donors and their byproducts almost always leach into aqueous environment. We now report an NO releasing poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) fluoropolymer by incorporating a new fluorinated S-nitrosothiol. The NO release can last for 16 days under physiological conditions. The total chemical leaching was determined to be only 0.6 mol% of the initial S-nitrosothiol loaded. As expected, significant antimicrobial/anti-biofilm activities of the NO release PVDF-HFP film were observed against Gram positive S. aureus and Gram negative P. aeruginosa bacterial strains.
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Affiliation(s)
- Yang Zhou
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jinyi Tan
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jianfeng Wu
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI 48109, USA
| | - Qi Zhang
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - John Andre
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Chuanwu Xi
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI 48109, USA
| | - Zhan Chen
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Mark E Meyerhoff
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.
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Rezvova MA, Ovcharenko EA, Nikishev PA, Kostyuk SV, Glushkova TV, Trebushat DV, Chernonosova VS, Shevelev GY, Klyshnikov KY, Kudryavtseva YA, Barabash LS. Prospects for Using Styrene-Isobutylene-Styrene (SIBS) Triblock Copolymer as a Cusp Material for Leaflet Heart Valve Prostheses: Evaluation of Physicochemical and Mechanical Properties. RUSS J APPL CHEM+ 2019. [DOI: 10.1134/s1070427219010026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Chen JC, Li LM, Gao JQ. Biomaterials for local drug delivery in central nervous system. Int J Pharm 2019; 560:92-100. [DOI: 10.1016/j.ijpharm.2019.01.071] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/20/2019] [Accepted: 01/31/2019] [Indexed: 01/07/2023]
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Janićijević Ž, Ninkov M, Kataranovski M, Radovanović F. Poly(DL-Lactide-co-ε-Caprolactone)/Poly(Acrylic Acid) Composite Implant for Controlled Delivery of Cationic Drugs. Macromol Biosci 2018; 19:e1800322. [PMID: 30548776 DOI: 10.1002/mabi.201800322] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 11/02/2018] [Indexed: 11/09/2022]
Abstract
Poly(DL-lactide-co-ε-caprolactone)/poly(acrylic acid) implantable composite reservoirs for cationic drugs are synthesized by sequentially applying photoirradiation and liquid phase inversion. The chemical composition and microstructure of reservoirs are characterized with Fourier transform infrared spectroscopy-attenuated total reflection (FTIR-ATR) and scanning electron microscopy (SEM), respectively. Drug loading and release properties are investigated using methylene blue as the drug model. Biocompatibility of reservoirs is examined through a series of in vitro tests and an in vivo experiment of subcutaneous implantation in Dark Agouti rats. Reservoirs show good ion-exchange capacity, high water content, and fast reversible swelling with retained geometry. Results of drug loading and release reveal excellent loading efficiency and diffusion-controlled release during 2 weeks. Biocompatibility tests in vitro demonstrate the lack of implant proinflammatory potential and hindered adhesion of L929 cells on the implant surface. Implants exhibit low acute toxicity and elicit a normal acute foreign body reaction that reaches the early stages of fibrous capsule formation after 7 days.
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Affiliation(s)
- Željko Janićijević
- University of Belgrade, School of Electrical Engineering, Bulevar kralja Aleksandra 73, 11120, Belgrade, Serbia.,Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, Knez Mihailova 35/IV, 11000, Belgrade, Serbia
| | - Marina Ninkov
- Department of Ecology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, 11060, Belgrade, Serbia
| | - Milena Kataranovski
- Department of Ecology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, 11060, Belgrade, Serbia.,Department of Physiology and Biochemistry, University of Belgrade, Studenstki trg 16, 11000, Belgrade, Serbia
| | - Filip Radovanović
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, Knez Mihailova 35/IV, 11000, Belgrade, Serbia
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45
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Baek S, Maruthupandy M, Lee K, Kim D, Seo J. Preparation and characterization of a poly(ether-block-amide) film–based CO2 indicator for monitoring kimchi quality. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.07.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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46
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Lee SK, Han CM, Park W, Kim IH, Joung YK, Han DK. Synergistically enhanced osteoconductivity and anti-inflammation of PLGA/β-TCP/Mg(OH) 2 composite for orthopedic applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:65-75. [PMID: 30423751 DOI: 10.1016/j.msec.2018.09.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 08/01/2018] [Accepted: 09/05/2018] [Indexed: 01/20/2023]
Abstract
Synthetic biodegradable polymers including poly(lactide-co-glycolide) (PLGA) have been widely used as alternatives to metallic implantable materials in the orthopedic field due to their superior biocompatibility and biodegradability. However, weak mechanical properties of the biodegradable polymers and inflammatory reaction caused by the acidic degradation products have limited their biomedical applications. In this study, we have developed a PLGA composite containing beta-tricalcium phosphate (β-TCP) and magnesium hydroxide (Mg(OH)2) as additives to improve mechanical, osteoconductivity, and anti-inflammation property of the biopolymer composite simultaneously. The β-TCP has an osteoconductive effect and the Mg(OH)2 has a pH neutralizing effect. The PLGA/inorganic composites were uniformly blended via a twin extrusion process. The mechanical property of the PLGA/β-TCP/Mg(OH)2 composite was improved compared to the pure PLGA. In particular, the addition of Mg(OH)2 suppressed the inflammatory reaction of normal human osteoblast (NHOst) cells and also inhibited the differentiation of pre-osteoclastic cells into osteoclasts. Moreover, synergistically upregulated late osteogenic differentiation of NHOst cells was observed on the PLGA/β-TCP/Mg(OH)2 composite. Taken all together, we believe that the use of β-TCP and Mg(OH)2 as additives with synthetic biodegradable polymers has great potential by the synergistic effect in orthopedic applications.
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Affiliation(s)
- Seul Ki Lee
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi 13488, Republic of Korea; Department of Biological Science, Korea University, Seoul 02841, Republic of Korea
| | - Cheol-Min Han
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Wooram Park
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi 13488, Republic of Korea
| | - Ik Hwan Kim
- Department of Biological Science, Korea University, Seoul 02841, Republic of Korea
| | - Yoon Ki Joung
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Department of Biomedical Engineering, Korea University of Science and Technology, Daejeon 34113, Republic of Korea.
| | - Dong Keun Han
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi 13488, Republic of Korea.
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47
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Nakamura M, Otsuji S, Nakagawa Y, Oikawa Y, Shiode N, Miyahara M, Furukawa T, Nakazawa G, Yokoi H. Non-Inferiority of Resolute Integrity Drug-Eluting Stent to Benchmark Xience Drug-Eluting Stent. Circ J 2018; 82:2284-2291. [DOI: 10.1253/circj.cj-18-0011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Masato Nakamura
- Department of Cardiovascular Internal Medicine, Toho University Medical Center, Ohashi Hospital
| | - Satoru Otsuji
- Department of Cardiovascular Internal Medicine, Higashi Takarazuka Satoh Hospital
| | | | - Yuji Oikawa
- Department of Cardiovascular Medicine, The Cardiovascular Institute
| | - Nobuo Shiode
- Department of Cardiovascular Internal Medicine, Tsuchiya General Hospital
| | | | | | - Gaku Nakazawa
- Department of Cardiovascular Internal Medicine, Tokai University Hospital
| | - Hiroyoshi Yokoi
- Department of Cardiovascular Medicine, Fukuoka Sanno Hospital
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48
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Martins C, Sousa F, Araújo F, Sarmento B. Functionalizing PLGA and PLGA Derivatives for Drug Delivery and Tissue Regeneration Applications. Adv Healthc Mater 2018; 7. [PMID: 29171928 DOI: 10.1002/adhm.201701035] [Citation(s) in RCA: 141] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 09/27/2017] [Indexed: 12/16/2022]
Abstract
Poly(lactic-co-glycolic) acid (PLGA) is one of the most versatile biomedical polymers, already approved by regulatory authorities to be used in human research and clinics. Due to its valuable characteristics, PLGA can be tailored to acquire desirable features for control bioactive payload or scaffold matrix. Moreover, its chemical modification with other polymers or bioconjugation with molecules may render PLGA with functional properties that make it the Holy Grail among the synthetic polymers to be applied in the biomedical field. In this review, the physical-chemical properties of PLGA, its synthesis, degradation, and conjugation with other polymers or molecules are revised in detail, as well as its applications in drug delivery and regeneration fields. A particular focus is given to successful examples of products already on the market or at the late stages of trials, reinforcing the potential of this polymer in the biomedical field.
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Affiliation(s)
- Cláudia Martins
- I3S - Instituto de Investigação e Inovação em Saúde; Universidade do Porto; Rua Alfredo Allen 208 4200-393 Porto Portugal
- INEB - Instituto de Engenharia Biomédica; Universidade do Porto; Rua Alfredo Allen 208 4200-393 Porto Portugal
| | - Flávia Sousa
- I3S - Instituto de Investigação e Inovação em Saúde; Universidade do Porto; Rua Alfredo Allen 208 4200-393 Porto Portugal
- INEB - Instituto de Engenharia Biomédica; Universidade do Porto; Rua Alfredo Allen 208 4200-393 Porto Portugal
- ICBAS - Instituto Ciências Biomédicas Abel Salazar; Universidade do Porto; Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
| | - Francisca Araújo
- I3S - Instituto de Investigação e Inovação em Saúde; Universidade do Porto; Rua Alfredo Allen 208 4200-393 Porto Portugal
- INEB - Instituto de Engenharia Biomédica; Universidade do Porto; Rua Alfredo Allen 208 4200-393 Porto Portugal
| | - Bruno Sarmento
- I3S - Instituto de Investigação e Inovação em Saúde; Universidade do Porto; Rua Alfredo Allen 208 4200-393 Porto Portugal
- INEB - Instituto de Engenharia Biomédica; Universidade do Porto; Rua Alfredo Allen 208 4200-393 Porto Portugal
- CESPU - Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde; Rua Central de Gandra 1317 4585-116 Gandra Portugal
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49
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Huang G, Li F, Zhao X, Ma Y, Li Y, Lin M, Jin G, Lu TJ, Genin GM, Xu F. Functional and Biomimetic Materials for Engineering of the Three-Dimensional Cell Microenvironment. Chem Rev 2017; 117:12764-12850. [PMID: 28991456 PMCID: PMC6494624 DOI: 10.1021/acs.chemrev.7b00094] [Citation(s) in RCA: 469] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The cell microenvironment has emerged as a key determinant of cell behavior and function in development, physiology, and pathophysiology. The extracellular matrix (ECM) within the cell microenvironment serves not only as a structural foundation for cells but also as a source of three-dimensional (3D) biochemical and biophysical cues that trigger and regulate cell behaviors. Increasing evidence suggests that the 3D character of the microenvironment is required for development of many critical cell responses observed in vivo, fueling a surge in the development of functional and biomimetic materials for engineering the 3D cell microenvironment. Progress in the design of such materials has improved control of cell behaviors in 3D and advanced the fields of tissue regeneration, in vitro tissue models, large-scale cell differentiation, immunotherapy, and gene therapy. However, the field is still in its infancy, and discoveries about the nature of cell-microenvironment interactions continue to overturn much early progress in the field. Key challenges continue to be dissecting the roles of chemistry, structure, mechanics, and electrophysiology in the cell microenvironment, and understanding and harnessing the roles of periodicity and drift in these factors. This review encapsulates where recent advances appear to leave the ever-shifting state of the art, and it highlights areas in which substantial potential and uncertainty remain.
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Affiliation(s)
- Guoyou Huang
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Fei Li
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- Department of Chemistry, School of Science,
Xi’an Jiaotong University, Xi’an 710049, People’s Republic
of China
| | - Xin Zhao
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- Interdisciplinary Division of Biomedical
Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong,
People’s Republic of China
| | - Yufei Ma
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Yuhui Li
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Min Lin
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Guorui Jin
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Tian Jian Lu
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- MOE Key Laboratory for Multifunctional Materials
and Structures, Xi’an Jiaotong University, Xi’an 710049,
People’s Republic of China
| | - Guy M. Genin
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- Department of Mechanical Engineering &
Materials Science, Washington University in St. Louis, St. Louis 63130, MO,
USA
- NSF Science and Technology Center for
Engineering MechanoBiology, Washington University in St. Louis, St. Louis 63130,
MO, USA
| | - Feng Xu
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
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50
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Huang CH, Lee SY, Horng S, Guy LG, Yu TB. In vitro and in vivo degradation of microfiber bioresorbable coronary scaffold. J Biomed Mater Res B Appl Biomater 2017; 106:1842-1850. [PMID: 28922543 PMCID: PMC6635671 DOI: 10.1002/jbm.b.33987] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 08/21/2017] [Accepted: 08/28/2017] [Indexed: 01/08/2023]
Abstract
The degradation of Mirage Bioresorbable Microfiber Scaffold was evaluated in vitro and in vivo. The degradation in polymer molecular weight (MW), strut morphology, and integrity was accessed using gel permeation chromatography (GPC), X‐ray micro‐computed tomography (micro‐CT) evaluation. To simulate the physiological degradation in vitro, scaffolds were deployed in silicone mock vessels connected to a peristaltic pumping system, which pumps 37°C phosphate‐buffered saline (PBS, pH 7.4) at a constant rate. At various time points (30D, 60D, 90D, 180D, 270D, and 360D), the MW of microfibers decreased to 57.3, 49.8, 36.9, 13.9, 6.4, and 5.1% against the baseline. The in vivo degradation study was performed by implanting scaffolds in internal thoracic arteries (ITAs) of mini‐swine. At the scheduled sacrifice time points (30D, 90D, 180D, 270D, 360D, and 540D), the implanted ITAs were excised for GPC analysis; the MW of the implanted scaffolds dropped to 58.5, 34.7, 24.8, 16.1, 12.9, and 7.1, respectively. Mass loss of scaffolds reached 72.4% at 540D of implantation. Two stages of hydrolysis were observed in in vitro and in vivo degradation kinetics, and the statistical analysis suggested a positive correlation between in vivo and in vitro degradation. After 6 months of incubation in animals, significant strut degradation was seen in the micro‐CT evaluation in all sections as strut fragments and separations. The micro‐CT results further confirmed that every sample at 720D had X‐ray transmission similar to surrounding tissue, thereby indicating full degradation within 2 years. © 2017 The Authors. Journal of Biomedical Materials Research Part B: Applied Biomaterials published by Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1842–1850, 2018.
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Affiliation(s)
- Chi-Hung Huang
- Division of Cardiology, Department of Internal Medicine, Cathay General Hospital, Taipei, Taiwan.,School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Sheng-Yang Lee
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan.,Dental Department of Taipei Medical University, Wan-Fang Hospital, Taipei, Taiwan
| | - Sonida Horng
- Accellab Inc., Boisbriand, Quebec, J7H 1N8, Canada
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