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Lambrecht S, Gazizova A, Kara S, Meyer J, Jopp S. Antimicrobial properties and biocompatibility of semi-synthetic carbohydrate-based ionic hydrogels. RSC Adv 2024; 14:30719-30731. [PMID: 39328876 PMCID: PMC11425042 DOI: 10.1039/d4ra05695g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2024] [Accepted: 09/20/2024] [Indexed: 09/28/2024] Open
Abstract
Hydrogels have gained significant interest in the last decades, especially in the medical sector, due to their versatile properties. While hydrogels from naturally occurring polysaccharides (e.g. cellulose) are well-known, those produced from polymerizable carbohydrate-based monomers remain underexplored. However, these semi-synthetic hydrogels offer the great advantage of having adjustable properties for customization depending on their application. The objective of this study was to characterize semi-synthetic carbohydrate-based ionic hydrogels produced from GVIM-I (glucosyl vinyl imidazolium iodide). The antimicrobial activity was evaluated using the disk diffusion method, which demonstrated that all samples exhibit inhibitory effects on the growth of Candida auris. In vitro biocompatibility was determined by cell viability studies with L929 mouse fibroblasts, and a correlation was observed between eluate concentration and cell viability. In particular, the type of initiator system employed for polymerization was found to affect cell viability. The direct contact assessments showed that specific pre-treatments of the hydrogels resulted in higher cell viability than non-treated hydrogels. The results also revealed the impact of crosslinker concentration and type and identified poly(ethylene glycol)diacrylate (PEGDA) 575 as a promising crosslinker for future medical applications. LC-MS analysis of the wash medium identified unreacted GVIM-I as the leached material, which is presumed to be the cause of the observed cytotoxicity. Overall, the study provides valuable insights into the characteristics of GVIM-I based hydrogels and sheds light on the factors that influence their cytotoxicity and potential for medical application.
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Affiliation(s)
- Sina Lambrecht
- Department Life, Light & Matter, University of Rostock Albert-Einstein-Str. 25 18059 Rostock Germany
| | - Alina Gazizova
- Institute of Chemistry, University of Rostock Albert-Einstein-Str. 3a 18059 Rostock Germany
| | - Selin Kara
- Institute of Technical Chemistry, Leibniz University Hannover Callinstraße 5 30167 Hannover Germany
- Biocatalysis and Bioprocessing Group, Department of Biological and Chemical Engineering, Aarhus University Gustav Wieds Vej 10 8000 Aarhus Denmark
| | - Johanna Meyer
- Institute of Technical Chemistry, Leibniz University Hannover Callinstraße 5 30167 Hannover Germany
| | - Stefan Jopp
- Department Life, Light & Matter, University of Rostock Albert-Einstein-Str. 25 18059 Rostock Germany
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2
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Lee S, Yoon CH, Oh DH, Anh TQ, Jeon KH, Chae IH, Park KD. Gelatin microgel-coated balloon catheter with enhanced delivery of everolimus for long-term vascular patency. Acta Biomater 2024; 173:314-324. [PMID: 37949201 DOI: 10.1016/j.actbio.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 10/30/2023] [Accepted: 11/01/2023] [Indexed: 11/12/2023]
Abstract
In-stent restenosis (ISR) after percutaneous coronary intervention is a major reason for limited long-term patency due to complex neointimal proliferation caused by vascular injury. Drug-coated balloon (DCB) has been developed to treat various cardiovascular diseases including ISR by providing anti-proliferative drugs into blood vessel tissues. However, a significant proportion of the drug is lost during balloon tracking, resulting in ineffective drug delivery to the target region. In this study, we report an everolimus-coated balloon (ECB) using everolimus-loaded gelatin-hydroxyphenyl propionic acid microgel (GM) with enhanced everolimus delivery to vascular walls for long-term patency. GM with high drug loading (> 97%) was simply prepared by homogenizing enzyme-mediated crosslinked hydrogels. The optimal condition to prepare GM-coated ECB (GM-ECB) was established by changing homogenization time and ethanol solvent concentration (30 ∼ 80%). In vitro sustained everolimus release for 30 d, and cellular efficacy using smooth muscle cells and vascular endothelial cells were evaluated. Additionally, an in vivo drug transfer levels of GM-ECB using rabbit femoral arteries were assessed with reduced drug loss and efficient drug delivery capability. Finally, using ISR-induced porcine models, effective in vivo vascular patency 4 weeks after treatment of ECBs was also confirmed. Thus, this study strongly demonstrates that GM can be used as a potential drug delivery platform for DCB application. STATEMENT OF SIGNIFICANCE: We report an ECB using everolimus-loaded GM prepared by homogenization of enzymatic cross-linked hydrogel. GM showed efficient drug loading (> 97 %) and controllable size. GM-ECB exhibited potential to deliver everolimus in a sustained manner to target area with drug efficacy and viability against SMC and EC. Although GM-ECB had much lower drug content compared to controls, animal study demonstrated enhanced drug transfer and reduced drug loss of GM-ECB due to the protection of encapsulated drugs by GM, and the possible interaction between GM and endothelium. Finally, vascular patency and safety were assessed using ISR-induced porcine models. We suggest an advanced DCB strategy to alleviate rapid drug clearance by bloodstream while improving drug delivery for a long-term vascular patency.
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Affiliation(s)
- Simin Lee
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Chang-Hwan Yoon
- Division of Cardiology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Dong Hwan Oh
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Tu Quang Anh
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Ki-Hyun Jeon
- Division of Cardiology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - In-Ho Chae
- Division of Cardiology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
| | - Ki Dong Park
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea.
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3
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Guan S, Wang Y, Xie F, Wang S, Xu W, Xu J, Sun C. Carboxymethyl Chitosan and Gelatin Hydrogel Scaffolds Incorporated with Conductive PEDOT Nanoparticles for Improved Neural Stem Cell Proliferation and Neuronal Differentiation. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238326. [PMID: 36500418 PMCID: PMC9740948 DOI: 10.3390/molecules27238326] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 12/03/2022]
Abstract
Tissue engineering scaffolds provide biological and physiochemical cures to guide tissue recovery, and electrical signals through the electroactive materials possess tremendous potential to modulate the cell fate. In this study, a novel electroactive hydrogel scaffold was fabricated by assembling poly(3,4-ethylenedioxythiophene) (PEDOT) nanoparticles on a carboxymethyl chitosan/gelatin (CMCS/Gel) composite hydrogel surface via in situ chemical polymerization. The chemical structure, morphology, conductivity, porosity, swelling rate, in vitro biodegradation, and mechanical properties of the prepared hydrogel samples were characterized. The adhesion, proliferation, and differentiation of neural stem cells (NSCs) on conductive hydrogels were investigated. The CMCS/Gel-PEDOT hydrogels exhibited high porosity, excellent water absorption, improved thermal stability, and adequate biodegradability. Importantly, the mechanical properties of the prepared hydrogels were similar to those of brain tissue, with electrical conductivity up to (1.52 ± 0.15) × 10-3 S/cm. Compared to the CMCS/Gel hydrogel, the incorporation of PEDOT nanoparticles significantly improved the adhesion of NSCs, and supported long-term cell growth and proliferation in a three-dimensional (3D) microenvironment. In addition, under the differentiation condition, the conductive hydrogel also significantly enhanced neuronal differentiation with the up-regulation of β-tubulin III expression. These results suggest that CMCS/Gel-PEDOT hydrogels may be an attractive conductive substrate for further studies on neural tissue repair and regeneration.
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Affiliation(s)
- Shui Guan
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, China
- Research & Educational Center for the Control Engineering of Translational Precision Medicine (R-ECCE-TPM), School of Biomedical Engineering, Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China
- Correspondence: (S.G.); (J.X.); (C.S.)
| | - Yangbin Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, China
| | - Feng Xie
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, China
| | - Shuping Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, China
| | - Weiping Xu
- School of Ocean Science and Technology & Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin 124221, China
| | - Jianqiang Xu
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin 124221, China
- Correspondence: (S.G.); (J.X.); (C.S.)
| | - Changkai Sun
- Research & Educational Center for the Control Engineering of Translational Precision Medicine (R-ECCE-TPM), School of Biomedical Engineering, Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China
- Correspondence: (S.G.); (J.X.); (C.S.)
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4
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Insights into current directions of protein and peptide-based hydrogel drug delivery systems for inflammation. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04527-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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5
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Yang Y, Huang C, Zheng H, Meng Z, Heng BC, Zhou T, Jiang S, Wei Y. Superwettable and injectable GelMA-MSC microspheres promote cartilage repair in temporomandibular joints. Front Bioeng Biotechnol 2022; 10:1026911. [PMID: 36225601 PMCID: PMC9549523 DOI: 10.3389/fbioe.2022.1026911] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 09/05/2022] [Indexed: 11/14/2022] Open
Abstract
Temporomandibular disorders (TMD) can be treated by promoting cartilage regeneration with biomaterials. However, there are deficiencies in the infiltration function of bone filler biological materials. In this study, stems cells were loaded onto gelatin methacryloyl (GelMA) hydrogel microspheres endowed with superwettable properties and TGF-β sustained-release function, which can quickly infiltrate the irregular surface of the temporomandibular joint (TMJ) bone defect area and accelerate cartilage healing. First, to improve cell adhesion and spreading function, the BMSCs-coated GelMA microspheres were endowed with superwetting property. At the same time, the swelling adsorption characteristics of gelatin microspheres could be used to load recombinant TGF-β within the microspheres, which could in turn promote the chondrogenic differentiation of multi-potent bone marrow mesenchymal stem cells. The SEM imaging demonstrated that BMSCs-coated GelMA microsphere has superwettable and superhydrophilic property, which enabled rapid adaptation to the bone defect surface morphology, which is conducive to tissue repair. Furthermore, the cartilage defect model showed that rBMSCs-coated GelMA microspheres promote temporomandibular joint arthritis repair. In conclusion, our study established that BMSC-coated GelMA microspheres endowed with superwetting properties, can colonize the bone defect repair site better with sustained release of growth factors, thus providing an innovative strategy for promoting cartilage regeneration.
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Affiliation(s)
- Yue Yang
- Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
- Department of Prosthodontics, The First Clinical Division, Peking University School and Hospital of Stomatology, Beijing, China
| | - Chenyan Huang
- Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Huimin Zheng
- Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Zhaoqiang Meng
- Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Boon Chin Heng
- Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Tuanfeng Zhou
- Department of Prosthodontics, The First Clinical Division, Peking University School and Hospital of Stomatology, Beijing, China
| | - Shengjie Jiang
- Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
- *Correspondence: Shengjie Jiang, ; Yan Wei,
| | - Yan Wei
- Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
- *Correspondence: Shengjie Jiang, ; Yan Wei,
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6
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Kim YH, Dawson JI, Oreffo ROC, Tabata Y, Kumar D, Aparicio C, Mutreja I. Gelatin Methacryloyl Hydrogels for Musculoskeletal Tissue Regeneration. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9070332. [PMID: 35877383 PMCID: PMC9311920 DOI: 10.3390/bioengineering9070332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 12/30/2022]
Abstract
Musculoskeletal disorders are a significant burden on the global economy and public health. Hydrogels have significant potential for enhancing the repair of damaged and injured musculoskeletal tissues as cell or drug delivery systems. Hydrogels have unique physicochemical properties which make them promising platforms for controlling cell functions. Gelatin methacryloyl (GelMA) hydrogel in particular has been extensively investigated as a promising biomaterial due to its tuneable and beneficial properties and has been widely used in different biomedical applications. In this review, a detailed overview of GelMA synthesis, hydrogel design and applications in regenerative medicine is provided. After summarising recent progress in hydrogels more broadly, we highlight recent advances of GelMA hydrogels in the emerging fields of musculoskeletal drug delivery, involving therapeutic drugs (e.g., growth factors, antimicrobial molecules, immunomodulatory drugs and cells), delivery approaches (e.g., single-, dual-release system), and material design (e.g., addition of organic or inorganic materials, 3D printing). The review concludes with future perspectives and associated challenges for developing local drug delivery for musculoskeletal applications.
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Affiliation(s)
- Yang-Hee Kim
- Bone and Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK; (J.I.D.); (R.O.C.O.)
- Correspondence: (Y.-H.K.); (I.M.); Tel.: +44-2381-203293 (Y.-H.K.); +1-(612)7605790 (I.M.)
| | - Jonathan I. Dawson
- Bone and Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK; (J.I.D.); (R.O.C.O.)
| | - Richard O. C. Oreffo
- Bone and Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK; (J.I.D.); (R.O.C.O.)
| | - Yasuhiko Tabata
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto 606-8501, Japan;
| | - Dhiraj Kumar
- Division of Pediatric Dentistry, School of Dentistry, University of Minnesota, Minneapolis, MN 55812, USA;
| | - Conrado Aparicio
- Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Restorative Science, University of Minnesota, Minneapolis, MN 55455, USA;
- Division of Basic Research, Faculty of Odontology UIC Barcelona—Universitat Internacional de Catalunya, 08017 Barcelona, Spain
- BIST—Barcelona Institute for Science and Technology, 08195 Barcelona, Spain
| | - Isha Mutreja
- Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Restorative Science, University of Minnesota, Minneapolis, MN 55455, USA;
- Correspondence: (Y.-H.K.); (I.M.); Tel.: +44-2381-203293 (Y.-H.K.); +1-(612)7605790 (I.M.)
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7
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Recent Trends in Drug Delivery and Emerging Biomedical Applications of Gelatin for Ophthalmic Indications. Macromol Res 2022. [DOI: 10.1007/s13233-022-0078-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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8
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Yang C, Yang S, Li G, Lin H. Study on preparation and in vitro release of gelatin microspheres loaded with steroidal saponins from Ophiopogon japonicus. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1920331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Chunrong Yang
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, China
| | - Shangfeng Yang
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, China
| | - Guanghui Li
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, China
| | - Han Lin
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, China
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9
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Bone JM, Childs CM, Menon A, Póczos B, Feinberg AW, LeDuc PR, Washburn NR. Hierarchical Machine Learning for High-Fidelity 3D Printed Biopolymers. ACS Biomater Sci Eng 2020; 6:7021-7031. [PMID: 33320614 DOI: 10.1021/acsbiomaterials.0c00755] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A hierarchical machine learning (HML) framework is presented that uses a small dataset to learn and predict the dominant build parameters necessary to print high-fidelity 3D features of alginate hydrogels. We examine the 3D printing of soft hydrogel forms printed with the freeform reversible embedding of suspended hydrogel method based on a CAD file that isolated the single-strand diameter and shape fidelity of printed alginate. Combinations of system variables ranging from print speed, flow rate, ink concentration to nozzle diameter were systematically varied to generate a small dataset of 48 prints. Prints were imaged and scored according to their dimensional similarity to the CAD file, and high print fidelity was defined as prints with less than 10% error from the CAD file. As a part of the HML framework, statistical inference was performed, using the least absolute shrinkage and selection operator to find the dominant variables that drive the error in the final prints. Model fit between the system parameters and print score was elucidated and improved by a parameterized middle layer of variable relationships which showed good performance between the predicted and observed data (R2 = 0.643). Optimization allowed for the prediction of build parameters that gave rise to high-fidelity prints of the measured features. A trade-off was identified when optimizing for the fidelity of different features printed within the same construct, showing the need for complex predictive design tools. A combination of known and discovered relationships was used to generate process maps for the 3D bioprinting designer that show error minimums based on the chosen input variables. Our approach offers a promising pathway toward scaling 3D bioprinting by optimizing print fidelity via learned build parameters that reduce the need for iterative testing.
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Affiliation(s)
- Jennifer M Bone
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Christopher M Childs
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Aditya Menon
- Department of Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Barnabás Póczos
- Machine Learning Department, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Adam W Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States.,Department of Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Philip R LeDuc
- Department of Mechanical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Newell R Washburn
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States.,Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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10
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Bédard P, Gauvin S, Ferland K, Caneparo C, Pellerin È, Chabaud S, Bolduc S. Innovative Human Three-Dimensional Tissue-Engineered Models as an Alternative to Animal Testing. Bioengineering (Basel) 2020; 7:E115. [PMID: 32957528 PMCID: PMC7552665 DOI: 10.3390/bioengineering7030115] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 12/12/2022] Open
Abstract
Animal testing has long been used in science to study complex biological phenomena that cannot be investigated using two-dimensional cell cultures in plastic dishes. With time, it appeared that more differences could exist between animal models and even more when translated to human patients. Innovative models became essential to develop more accurate knowledge. Tissue engineering provides some of those models, but it mostly relies on the use of prefabricated scaffolds on which cells are seeded. The self-assembly protocol has recently produced organ-specific human-derived three-dimensional models without the need for exogenous material. This strategy will help to achieve the 3R principles.
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Affiliation(s)
- Patrick Bédard
- Faculté de Médecine, Sciences Biomédicales, Université Laval, Québec, QC G1V 0A6, Canada; (P.B.); (S.G.); (K.F.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Sara Gauvin
- Faculté de Médecine, Sciences Biomédicales, Université Laval, Québec, QC G1V 0A6, Canada; (P.B.); (S.G.); (K.F.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Karel Ferland
- Faculté de Médecine, Sciences Biomédicales, Université Laval, Québec, QC G1V 0A6, Canada; (P.B.); (S.G.); (K.F.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Christophe Caneparo
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Ève Pellerin
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Stéphane Chabaud
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Stéphane Bolduc
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
- Département de Chirurgie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
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11
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Fang Q, Yao Z, Feng L, Liu T, Wei S, Xu P, Guo R, Cheng B, Wang X. Antibiotic-loaded chitosan-gelatin scaffolds for infected seawater immersion wound healing. Int J Biol Macromol 2020; 159:1140-1155. [DOI: 10.1016/j.ijbiomac.2020.05.126] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/13/2020] [Accepted: 05/15/2020] [Indexed: 12/14/2022]
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12
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Bello AB, Kim D, Kim D, Park H, Lee SH. Engineering and Functionalization of Gelatin Biomaterials: From Cell Culture to Medical Applications. TISSUE ENGINEERING PART B-REVIEWS 2020; 26:164-180. [PMID: 31910095 DOI: 10.1089/ten.teb.2019.0256] [Citation(s) in RCA: 264] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Health care and medicine were revolutionized in recent years by the development of biomaterials, such as stents, implants, personalized drug delivery systems, engineered grafts, cell sheets, and other transplantable materials. These materials not only support the growth of cells before transplantation but also serve as replacements for damaged tissues in vivo. Among the various biomaterials available, those made from natural biological sources such as extracellular proteins (collagen, fibronectin, laminin) have shown significant benefits, and thus are widely used. However, routine biomaterial-based research requires copious quantities of proteins and the use of pure and intact extracellular proteins could be highly cost ineffective. Gelatin is a molecular derivative of collagen obtained through the irreversible denaturation of collagen proteins. Gelatin shares a very close molecular structure and function with collagen and thus is often used in cell and tissue culture to replace collagen for biomaterial purposes. Recent technological advancements such as additive manufacturing, rapid prototyping, and three-dimensional printing, in general, have resulted in great strides toward the generation of functional gelatin-based materials for medical purposes. In this review, the structural and molecular similarities of gelatin to other extracellular matrix proteins are compared and analyzed. Current strategies for gelatin crosslinking and production are described and recent applications of gelatin-based biomaterials in cell culture and tissue regeneration are discussed. Finally, recent improvements in gelatin-based biomaterials for medical applications and future directions are elaborated. Impact statement In this study, we described gelatin's biochemical properties and compared its advantages and drawbacks over other extracellular matrix proteins and polymers used for biomaterial application. We also described how gelatin can be used with other polymers in creating gelatin composite materials that have enhanced mechanical properties, increased biocompatibility, and boosted bioactivity, maximizing its benefits for biomedical purposes. The article is relevant, as it discussed not only the chemistry of gelatin, but also listed the current techniques in gelatin/biomaterial manufacturing and described the most recent trends in gelatin-based biomaterials for biomedical applications.
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Affiliation(s)
- Alvin Bacero Bello
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea.,Department of Biomedical Science, Dongguk University, Gyeonggi, Republic of Korea
| | - Deogil Kim
- Department of Biomedical Science, CHA University, Seongnam-Si, Republic of Korea
| | - Dohyun Kim
- Department of Biomedical Science, Dongguk University, Gyeonggi, Republic of Korea
| | - Hansoo Park
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea
| | - Soo-Hong Lee
- Department of Biomedical Science, Dongguk University, Gyeonggi, Republic of Korea
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Wang Y, Ma M, Wang J, Zhang W, Lu W, Gao Y, Zhang B, Guo Y. Development of a Photo-Crosslinking, Biodegradable GelMA/PEGDA Hydrogel for Guided Bone Regeneration Materials. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1345. [PMID: 30081450 PMCID: PMC6119853 DOI: 10.3390/ma11081345] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 07/29/2018] [Accepted: 07/31/2018] [Indexed: 01/17/2023]
Abstract
Gelatin-based hydrogel, which mimics the natural dermal extracellular matrix, is a promising tissue engineering material. However, insufficient and uncontrollable mechanical and degradation properties remain the major obstacles for its application in medical bone regeneration material. Herein, we develop a facile but efficient strategy for a novel hydrogel as guided bone regeneration (GBR) material. In this study, methacrylic anhydride (MA) has been used to modify gelatin to obtain photo-crosslinkable methacrylated gelatin (GelMA). Moreover, the GelMA/PEGDA hydrogel was prepared by photo-crosslinking GelMA and PEGDA with photoinitiator I2959 under UV treatment. Compared with the GelMA hydrogel, the GelMA/PEGDA hydrogel exhibits several times stronger mechanical properties than pure GelMA hydrogel. The GelMA/PEGDA hydrogel shows a suitable degradation rate of more than 4 weeks, which is beneficial to implant in body. In vitro cell culture showed that osteoblast can adhere and proliferate on the surface of the hydrogel, indicating that the GelMA/PEGDA hydrogel had good cell viability and biocompatibility. Furthermore, by changing the quantities of GelMA, I2959, and PEGDA, the gelation time can be controlled easily to meet the requirement of its applications. In short, this study demonstrated that PEGDA enhanced the performance and extended the applications of GelMA hydrogels, turning the GelMA/PEGDA hydrogel into an excellent GBR material.
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Affiliation(s)
- Yihu Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
- Hangzhou Branch of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Hangzhou 310018, China.
| | - Ming Ma
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Jianing Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Weijie Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Weipeng Lu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- Hangzhou Branch of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Hangzhou 310018, China.
| | - Yunhua Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Bing Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Yanchuan Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
- Hangzhou Branch of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Hangzhou 310018, China.
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DeFrates K, Markiewicz T, Gallo P, Rack A, Weyhmiller A, Jarmusik B, Hu X. Protein Polymer-Based Nanoparticles: Fabrication and Medical Applications. Int J Mol Sci 2018; 19:E1717. [PMID: 29890756 PMCID: PMC6032199 DOI: 10.3390/ijms19061717] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/06/2018] [Accepted: 06/07/2018] [Indexed: 12/15/2022] Open
Abstract
Nanoparticles are particles that range in size from about 1⁻1000 nanometers in diameter, about one thousand times smaller than the average cell in a human body. Their small size, flexible fabrication, and high surface-area-to-volume ratio make them ideal systems for drug delivery. Nanoparticles can be made from a variety of materials including metals, polysaccharides, and proteins. Biological protein-based nanoparticles such as silk, keratin, collagen, elastin, corn zein, and soy protein-based nanoparticles are advantageous in having biodegradability, bioavailability, and relatively low cost. Many protein nanoparticles are easy to process and can be modified to achieve desired specifications such as size, morphology, and weight. Protein nanoparticles are used in a variety of settings and are replacing many materials that are not biocompatible and have a negative impact on the environment. Here we attempt to review the literature pertaining to protein-based nanoparticles with a focus on their application in drug delivery and biomedical fields. Additional detail on governing nanoparticle parameters, specific protein nanoparticle applications, and fabrication methods are also provided.
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Affiliation(s)
- Kelsey DeFrates
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA.
| | - Theodore Markiewicz
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA.
| | - Pamela Gallo
- Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA.
| | - Aaron Rack
- Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA.
| | - Aubrie Weyhmiller
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
| | - Brandon Jarmusik
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
| | - Xiao Hu
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA.
- Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA.
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Zimoch J, Padial JS, Klar AS, Vallmajo-Martin Q, Meuli M, Biedermann T, Wilson CJ, Rowan A, Reichmann E. Polyisocyanopeptide hydrogels: A novel thermo-responsive hydrogel supporting pre-vascularization and the development of organotypic structures. Acta Biomater 2018; 70:129-139. [PMID: 29454158 DOI: 10.1016/j.actbio.2018.01.042] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 01/23/2018] [Accepted: 01/29/2018] [Indexed: 12/17/2022]
Abstract
Molecular and mechanical interactions with the 3D extracellular matrix are essential for cell functions such as survival, proliferation, migration, and differentiation. Thermo-responsive biomimetic polyisocyanopeptide (PIC) hydrogels are promising new candidates for 3D cell, tissue, and organ cultures. This is a synthetic, thermo-responsive and stress-stiffening material synthesized via polymerization of the corresponding monomers using a nickel perchlorate as a catalyst. It can be tailored to meet various demands of cells by modulating its stiffness and through the decoration of the polymer with short GRGDS peptides using copper free click chemistry. These peptides make the hydrogels biocompatible by mimicking the binding sites of certain integrins. This study focuses on the optimization of the PIC polymer properties for efficient cell, tissue and organ development. Screening for the optimal stiffness of the hydrogel and the ideal concentration of the GRGDS ligand conjugated with the polymer, enabled cell proliferation, migration and differentiation of various primary cell types of human origin. We demonstrate that fibroblasts, endothelial cells, adipose-derived stem cells and melanoma cells, do survive, thrive and differentiate in optimized PIC hydrogels. Importantly, these hydrogels support the spontaneous formation of complex structures like blood capillaries in vitro. Additionally, we utilized the thermo-responsive properties of the hydrogels for a rapid and gentle recovery of viable cells. Finally, we show that organotypic structures of human origin grown in PIC hydrogels can be successfully transplanted subcutaneously onto immune-compromised rats, on which they survive and integrate into the surrounding tissue. STATEMENT OF SIGNIFICANCE Molecular and mechanical interactions with the surrounding environment are essential for cell functions. Although 2D culture systems greatly contributed to our understanding of complex biological phenomena, they cannot substitute for crucial interaction that take place in 3D. 3D culture systems aim to overcome limitations of the 2D cultures and answer new questions about cell functions. Thermo-responsive biomimetic polyisocyanopeptide (PIC) hydrogels are promising new candidates for 3D cell, tissue, and organ cultures. They are synthetic and can be tailor to meet certain experimental demands. Additionally, they are characterized by strain-stiffening, a feature crucial for cell behaviour, but rare in hydrogels. Their thermos-responsive properties enable quick recovery of the cells by a simple procedure of lowering the temperature.
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Affiliation(s)
- Jakub Zimoch
- Tissue Biology Research Unit, Department of Surgery, University Children's Hospital Zurich, August Forel Str. 7, CH-8008 Zurich, Switzerland
| | - Joan Simó Padial
- Department of Molecular Materials, Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 Nijmegen, the Netherlands; Noviotech B.V., Molenveldlaan 43, 6523 RJ Nijmegen, the Netherlands
| | - Agnes S Klar
- Tissue Biology Research Unit, Department of Surgery, University Children's Hospital Zurich, August Forel Str. 7, CH-8008 Zurich, Switzerland
| | - Queralt Vallmajo-Martin
- Laboratory for Cell and Tissue Engineering, Department of Obstetrics, University Hospital Zurich, Schmelzbergstr. 12, 8091 Zurich, Switzerland
| | - Martin Meuli
- Tissue Biology Research Unit, Department of Surgery, University Children's Hospital Zurich, August Forel Str. 7, CH-8008 Zurich, Switzerland; Children's Research Center, University Children's Hospital Zurich, Zurich, Switzerland
| | - Thomas Biedermann
- Tissue Biology Research Unit, Department of Surgery, University Children's Hospital Zurich, August Forel Str. 7, CH-8008 Zurich, Switzerland
| | | | - Alan Rowan
- Department of Molecular Materials, Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 Nijmegen, the Netherlands
| | - Ernst Reichmann
- Tissue Biology Research Unit, Department of Surgery, University Children's Hospital Zurich, August Forel Str. 7, CH-8008 Zurich, Switzerland.
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Zhao YL, Lu ZY, Zhang X, Liu WW, Yao GD, Liu XL, Liu W, Wu QJ, Hayashi T, Yamato M, Fujisaki H, Hattori S, Atsuzawa Y, Tashiro SI, Onodera S, Ikejima T. Gelatin promotes cell aggregation and pro-inflammatory cytokine production in PMA-stimulated U937 cells by augmenting endocytosis-autophagy pathway. Int J Biochem Cell Biol 2018; 95:132-142. [DOI: 10.1016/j.biocel.2018.01.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 12/23/2017] [Accepted: 01/04/2018] [Indexed: 01/28/2023]
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17
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Electrospinning of gelatin with tunable fiber morphology from round to flat/ribbon. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:371-378. [DOI: 10.1016/j.msec.2017.06.001] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 05/05/2017] [Accepted: 06/06/2017] [Indexed: 11/21/2022]
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18
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Biocompatibility of hydrogel-based scaffolds for tissue engineering applications. Biotechnol Adv 2017; 35:530-544. [DOI: 10.1016/j.biotechadv.2017.05.006] [Citation(s) in RCA: 407] [Impact Index Per Article: 58.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 05/08/2017] [Accepted: 05/22/2017] [Indexed: 12/15/2022]
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19
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Pankongadisak P, Ruktanonchai UR, Supaphol P, Suwantong O. Gelatin scaffolds functionalized by silver nanoparticle-containing calcium alginate beads for wound care applications. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3988] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | | | - Pitt Supaphol
- The Petroleum and Petrochemical College; Chulalongkorn University; Pathumwan Bangkok 10330 Thailand
- The Center of Excellence on Petrochemical and Materials Technology; Chulalongkorn University; Pathumwan Bangkok 10330 Thailand
| | - Orawan Suwantong
- School of Science; Mae Fah Luang University; Tasud, Muang Chiang Rai 57100 Thailand
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20
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Soulé S, Bulteau AL, Faucher S, Haye B, Aimé C, Allouche J, Dupin JC, Lespes G, Coradin T, Martinez H. Design and Cellular Fate of Bioinspired Au-Ag Nanoshells@Hybrid Silica Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10073-10082. [PMID: 27609666 DOI: 10.1021/acs.langmuir.6b02810] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Silica-coated gold-silver alloy nanoshells were obtained via a bioinspired approach using gelatin and poly-l-lysine (PLL) as biotemplates for the interfacial condensation of sodium silicate solutions. X-ray photoelectron spectroscopy was used as an efficient tool for the in-depth and complete characterization of the chemical features of nanoparticles during the whole synthetic process. Cytotoxicity assays using HaCaT cells evidenced the detrimental effect of the gelatin nanocoating and significant induction of late apoptosis after silicification. In contrast, PLL-modified nanoparticles had less biological impact that was further improved by the silica layer, and uptake rates of up to 50% of those of the initial particles could be achieved. These results are discussed considering the effect of nanosurface confinement of the biopolymers on their chemical and biological reactivity.
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Affiliation(s)
- Samantha Soulé
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM)-UMR CNRS/UPPA 5254, Equipe de Chimie Physique (ECP), Université de Pau et des Pays de l'Adour (UPPA), Technopôle Hélioparc Pau Pyrénées , 2, Avenue du Président Pierre Angot, 64053 Pau Cedex 09, France
| | - Anne-Laure Bulteau
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM)-UMR CNRS/UPPA 5254, Laboratoire de Chimie Analytique Bio-inorganique et Environnement (LCABIE), Université de Pau et des Pays de l'Adour (UPPA), Technopôle Hélioparc Pau Pyrénées , 2, Avenue du Président Pierre Angot, 64053 Pau Cedex 09, France
| | - Stéphane Faucher
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM)-UMR CNRS/UPPA 5254, Laboratoire de Chimie Analytique Bio-inorganique et Environnement (LCABIE), Université de Pau et des Pays de l'Adour (UPPA), Technopôle Hélioparc Pau Pyrénées , 2, Avenue du Président Pierre Angot, 64053 Pau Cedex 09, France
| | - Bernard Haye
- Sorbonne Universités, UPMC Univ Paris 06, CNRS , Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 Place Jussieu, 75005 Paris, France
| | - Carole Aimé
- Sorbonne Universités, UPMC Univ Paris 06, CNRS , Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 Place Jussieu, 75005 Paris, France
| | - Joachim Allouche
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM)-UMR CNRS/UPPA 5254, Equipe de Chimie Physique (ECP), Université de Pau et des Pays de l'Adour (UPPA), Technopôle Hélioparc Pau Pyrénées , 2, Avenue du Président Pierre Angot, 64053 Pau Cedex 09, France
| | - Jean-Charles Dupin
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM)-UMR CNRS/UPPA 5254, Equipe de Chimie Physique (ECP), Université de Pau et des Pays de l'Adour (UPPA), Technopôle Hélioparc Pau Pyrénées , 2, Avenue du Président Pierre Angot, 64053 Pau Cedex 09, France
| | - Gaëtane Lespes
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM)-UMR CNRS/UPPA 5254, Laboratoire de Chimie Analytique Bio-inorganique et Environnement (LCABIE), Université de Pau et des Pays de l'Adour (UPPA), Technopôle Hélioparc Pau Pyrénées , 2, Avenue du Président Pierre Angot, 64053 Pau Cedex 09, France
| | - Thibaud Coradin
- Sorbonne Universités, UPMC Univ Paris 06, CNRS , Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 Place Jussieu, 75005 Paris, France
| | - Hervé Martinez
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM)-UMR CNRS/UPPA 5254, Equipe de Chimie Physique (ECP), Université de Pau et des Pays de l'Adour (UPPA), Technopôle Hélioparc Pau Pyrénées , 2, Avenue du Président Pierre Angot, 64053 Pau Cedex 09, France
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Wang HJ, Li MQ, Liu W, Yao GD, Xia MY, Hayashi T, Fujisaki H, Hattori S, Tashiro SI, Onodera S, Ikejima T. Gelatin promotes murine fibrosarcoma L929 cell detachment and protects the cells from TNFα-induced cytotoxicity. Connect Tissue Res 2016; 57:262-9. [PMID: 27031673 DOI: 10.3109/03008207.2016.1146713] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE Gelatin has been considered to exist as intermediate substance of collagen catabolism in tissue remodeling or under inflammatory conditions. We have initiated the study on possible biological functions of gelatin that can exist temporally and locally under the conditions of remodeling and inflammation Materials and methods: To this purpose, we investigated cell proliferation and survival on gelatin-coated dishes and the response to tumor necrosis factor α (TNFα)-induced cytotoxicity in L929 cells. Autophagy level, ATP level, and ROS generation are examined. RESULTS L929 cells detached from the gelatin-coated dishes and formed multicellular aggregates. TNFα-induced cytotoxicity in L929 cells was inhibited by gelatin-coating culture. The cells on gelatin-coated dishes showed reduced cellular ATP levels and increased adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) phosphorylation, leading to increased ROS generation and autophagy. CONCLUSION This study showed that gelatin-coated culture protected L929 cells from TNFα-induced cytotoxicity and suggested for a possible pathophysiological function of gelatin in regulating cellular functions.
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Affiliation(s)
- Hong-Ju Wang
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Meng-Qi Li
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Wei Liu
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Guo-Dong Yao
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Ming-Yu Xia
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Toshihiko Hayashi
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Hitomi Fujisaki
- b Nippi Research Institute of Biomatrix, Nippi, Incorporated, Toride , Japan
| | - Shunji Hattori
- b Nippi Research Institute of Biomatrix, Nippi, Incorporated, Toride , Japan
| | - Shin-Ichi Tashiro
- c Department of Medical Education and Primary Care , Kyoto Prefectural University of Medicine , Kyoto , Japan
| | - Satoshi Onodera
- d Department of Clinical and Pharmaceutical Sciences , Showa Pharmaceutical University , Tokyo , Japan
| | - Takashi Ikejima
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
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Garash R, Bajpai A, Marcinkiewicz BM, Spiller KL. Drug delivery strategies to control macrophages for tissue repair and regeneration. Exp Biol Med (Maywood) 2016; 241:1054-63. [PMID: 27190256 PMCID: PMC4950366 DOI: 10.1177/1535370216649444] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Tissue repair and regeneration is a complex process. Our bodies have an excellent capacity to regenerate damaged tissues in many situations. However, tissue healing is impaired in injuries that exceed a critical size or are exacerbated by chronic inflammatory diseases like diabetes. In these instances, biomaterials and drug delivery strategies are often required to facilitate tissue regeneration by providing physical and biochemical cues. Inflammation is the body's response to injury. It is critical for wound healing and biomaterial integration and vascularization, as long as the timing is well controlled. For example, chronic inflammation is well known to impair healing in chronic wounds. In this review, we highlight the importance of a well-controlled inflammatory response, primarily mediated by macrophages in tissue repair and regeneration and discuss various strategies designed to promote regeneration by controlling macrophage behavior. These strategies include temporally controlled delivery of anti-inflammatory drugs, delivery of macrophages as cellular therapy, controlled release of cytokines that modulate macrophage phenotype, and the design of nanoparticles that exploit the inherent phagocytic behavior of macrophages. A clear outcome of this review is that a deeper understanding of the role and timing of complex macrophage phenotypes or activation states is required to fully harness their abilities with drug delivery strategies.
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Affiliation(s)
- Reham Garash
- Biomaterials and Regenerative Medicine Laboratory, School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Anamika Bajpai
- Biomaterials and Regenerative Medicine Laboratory, School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Brandon M Marcinkiewicz
- Biomaterials and Regenerative Medicine Laboratory, School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Kara L Spiller
- Biomaterials and Regenerative Medicine Laboratory, School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA 19104, USA
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Genipin-modified gelatin nanocarriers as swelling controlled drug delivery system for in vitro release of cytarabine. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 61:457-65. [DOI: 10.1016/j.msec.2015.12.085] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 12/21/2015] [Accepted: 12/28/2015] [Indexed: 10/22/2022]
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Yu T, Wang W, Nassiri S, Kwan T, Dang C, Liu W, Spiller KL. Temporal and spatial distribution of macrophage phenotype markers in the foreign body response to glutaraldehyde-crosslinked gelatin hydrogels. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:721-42. [PMID: 26902292 DOI: 10.1080/09205063.2016.1155881] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Currently, it is not well understood how changes in biomaterial properties affect the foreign body response (FBR) or macrophage behavior. Because failed attempts at biomaterial degradation by macrophages have been linked to frustrated phagocytosis, a defining feature of the FBR, we hypothesized that increased hydrogel crosslinking density (and decreased degradability) would exacerbate the FBR. Gelatin hydrogels were crosslinked with glutaraldehyde (0.05, 0.1, and 0.3%) and implanted subcutaneously in C57BL/6 mice over the course of 3 weeks. Interestingly, changes in hydrogel crosslinking did not affect the thickness of the fibrous capsule surrounding the hydrogels, expression of the pan-macrophage marker F480, expression of three macrophage phenotype markers (iNOS, Arg1, CD163), or expression of the myofibroblast marker aSMA, determined using semi-quantitative immunohistochemical analysis. With respect to temporal changes, the level of expression of the M1 marker (iNOS) remained relatively constant throughout the study, while the M2 markers Arg1 and CD163 increased over time. Expression of these M2 markers was highly correlated with fibrous capsule thickness. Differences in spatial distribution of staining also were noted, with the strongest staining for iNOS at the hydrogel surface and increasing expression of the myofibroblast marker aSMA toward the outer edge of the fibrous capsule. These results confirm previous reports that macrophages in the FBR exhibit characteristics of both M1 and M2 phenotypes. Understanding the effects (or lack of effects) of biomaterial properties on the FBR and macrophage phenotype may aid in the rational design of biomaterials to integrate with surrounding tissue.
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Affiliation(s)
- Tony Yu
- a School of Biomedical Engineering, Science, and Health Systems , Drexel University , Philadelphia , PA , USA
| | - Wenbo Wang
- b Shanghai Key Tissue Engineering Laboratory , Shanghai Jiao Tong University , Shanghai , China
| | - Sina Nassiri
- a School of Biomedical Engineering, Science, and Health Systems , Drexel University , Philadelphia , PA , USA
| | - Thomas Kwan
- c Institute of Science and Technology in Medicine , Keele University , Stoke-on-Trent , UK
| | - Chau Dang
- a School of Biomedical Engineering, Science, and Health Systems , Drexel University , Philadelphia , PA , USA
| | - Wei Liu
- b Shanghai Key Tissue Engineering Laboratory , Shanghai Jiao Tong University , Shanghai , China
| | - Kara L Spiller
- a School of Biomedical Engineering, Science, and Health Systems , Drexel University , Philadelphia , PA , USA
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Kapoor S, Kundu SC. Silk protein-based hydrogels: Promising advanced materials for biomedical applications. Acta Biomater 2016; 31:17-32. [PMID: 26602821 DOI: 10.1016/j.actbio.2015.11.034] [Citation(s) in RCA: 274] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 11/08/2015] [Accepted: 11/17/2015] [Indexed: 01/20/2023]
Abstract
Hydrogels are a class of advanced material forms that closely mimic properties of the soft biological tissues. Several polymers have been explored for preparing hydrogels with structural and functional features resembling that of the extracellular matrix. Favourable material properties, biocompatibility and easy processing of silk protein fibers into several forms make it a suitable material for biomedical applications. Hydrogels made from silk proteins have shown a potential in overcoming limitations of hydrogels prepared from conventional polymers. A great deal of effort has been made to control the properties and to integrate novel topographical and functional characteristics in the hydrogel composed from silk proteins. This review provides overview of the advances in silk protein-based hydrogels with a primary emphasis on hydrogels of fibroin. It describes the approaches used to fabricate fibroin hydrogels. Attempts to improve the existing properties or to incorporate new features in the hydrogels by making composites and by improving fibroin properties by genetic engineering approaches are also described. Applications of the fibroin hydrogels in the realms of tissue engineering and controlled release are reviewed and their future potentials are discussed. STATEMENT OF SIGNIFICANCE This review describes the potentiality of silk fibroin hydrogel. Silk Fibroin has been widely recognized as an interesting biomaterial. Due to its properties including high mechanical strength and excellent biocompatibility, it has gained wide attention. Several groups are exploring silk-based materials including films, hydrogels, nanofibers and nanoparticles for different biomedical applications. Although there is a good amount of literature available on general properties and applications of silk based biomaterials, there is an inadequacy of extensive review articles that specifically focus on silk based hydrogels. Silk-based hydrogels have a strong potential to be utilized in biomedical applications. Our work is an effort to highlight the research that has been done in the area of silk-based hydrogels. It aims to provide an overview of the advances that have been made and the future course available. It will provide an overview of the silk-based hydrogels as well as may direct the readers to the specific areas of application.
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Nagarajan S, Soussan L, Bechelany M, Teyssier C, Cavaillès V, Pochat-Bohatier C, Miele P, Kalkura N, Janot JM, Balme S. Novel biocompatible electrospun gelatin fiber mats with antibiotic drug delivery properties. J Mater Chem B 2016; 4:1134-1141. [DOI: 10.1039/c5tb01897h] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The aim of this study was to synthesize stable gelatin electrospun mats (ESMs) (cross-linked by glutaraldehyde (GTA) vapors) with tunable drug release properties using pH as a stimulus.
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Affiliation(s)
- Sakthivel Nagarajan
- Institut Européen des Membranes
- UMR 5635 CNRS ENSCM Université Montpellier
- F-34095 Montpellier cedex 5
- France
- Crystal Growth Centre
| | - Laurence Soussan
- Institut Européen des Membranes
- UMR 5635 CNRS ENSCM Université Montpellier
- F-34095 Montpellier cedex 5
- France
| | - Mikhael Bechelany
- Institut Européen des Membranes
- UMR 5635 CNRS ENSCM Université Montpellier
- F-34095 Montpellier cedex 5
- France
| | - Catherine Teyssier
- IRCM
- Institut de Recherche en Cancérologie de Montpellier
- INSERM U1194
- Université Montpellier
- Montpellier F-34298
| | - Vincent Cavaillès
- IRCM
- Institut de Recherche en Cancérologie de Montpellier
- INSERM U1194
- Université Montpellier
- Montpellier F-34298
| | - Céline Pochat-Bohatier
- Institut Européen des Membranes
- UMR 5635 CNRS ENSCM Université Montpellier
- F-34095 Montpellier cedex 5
- France
| | - Philippe Miele
- Institut Européen des Membranes
- UMR 5635 CNRS ENSCM Université Montpellier
- F-34095 Montpellier cedex 5
- France
| | | | - Jean-Marc Janot
- Institut Européen des Membranes
- UMR 5635 CNRS ENSCM Université Montpellier
- F-34095 Montpellier cedex 5
- France
| | - Sébastien Balme
- Institut Européen des Membranes
- UMR 5635 CNRS ENSCM Université Montpellier
- F-34095 Montpellier cedex 5
- France
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Berdichevski A, Shachaf Y, Wechsler R, Seliktar D. Protein composition alters in vivo resorption of PEG-based hydrogels as monitored by contrast-enhanced MRI. Biomaterials 2015; 42:1-10. [DOI: 10.1016/j.biomaterials.2014.11.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 10/26/2014] [Accepted: 11/07/2014] [Indexed: 12/21/2022]
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Thirupathi Kumara Raja S, Thiruselvi T, Aravindhan R, Mandal AB, Gnanamani A. In vitro and in vivo assessments of a 3-(3,4-dihydroxyphenyl)-2-propenoic acid bioconjugated gelatin-based injectable hydrogel for biomedical applications. J Mater Chem B 2014; 3:1230-1244. [PMID: 32264474 DOI: 10.1039/c4tb01196a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Imparting functional properties on a biomaterial for high end applications is always a challenging task. In the present study, an attempt was made to construct an injectable hydrogel through bioconjugation of dihydroxy phenolic acids to a gelatin backbone. Bioconjugating caffeic acid with gelatin followed by oxidation with mild oxidation agents provided a hydrogel with all the requisite properties (biocompatibility, controlled biodegradability, and antioxidant, antimicrobial and wound healing ability). Bioconjugation was performed using EDC/NHS and the resultant gel named as caffeic acid bioconjugated gel (CBG gel). The physicochemical, rheological, swelling, in vitro (biocompatibility, biodegradability, antimicrobial properties, antioxidant properties and drug release properties) and in vivo (biocompatibility, biodegradability and wound healing properties) studies on the CBG gel were carried out using standard protocols. The bioconjugation was confirmed by 1H NMR and UV-Vis analysis. Rheological analysis of the CBG gel revealed that the storage modulus was greater than the loss modulus at all the frequencies and suggested the elastic nature of the gel. About 50% weight gain within 12 hours during swelling studies and 50% weight loss within 12 hours during evaporation suggested the suitability of the CBG gel as a drug carrier. The drug release studies implied that there was an initial burst and later the release was sustained. The CBG gel promotes cell migration and demonstrates radical scavenging behavior. When subcutaneously injected into the animal, as in situ CBG gel, the gel was highly biocompatible and did not cause any necrosis. The crosstalk with adjacent tissue cells was smooth and the gel completely degraded within 24 days. The wound healing efficacy on full-thickness wounds suggested that the CBG gel accelerated healing and imparted high strength on the healed skin at an appreciable level. With all these additional functional properties, the CBG gel could be useful for biomedical applications.
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Gaharwar AK, Avery RK, Assmann A, Paul A, McKinley GH, Khademhosseini A, Olsen BD. Shear-thinning nanocomposite hydrogels for the treatment of hemorrhage. ACS NANO 2014; 8:9833-42. [PMID: 25221894 PMCID: PMC4212795 DOI: 10.1021/nn503719n] [Citation(s) in RCA: 260] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 09/15/2014] [Indexed: 05/19/2023]
Abstract
Internal hemorrhaging is a leading cause of death after traumatic injury on the battlefield. Although several surgical approaches such as the use of fibrin glue and tissue adhesive have been commercialized to achieve hemostasis, these approaches are difficult to employ on the battlefield and cannot be used for incompressible wounds. Here, we present shear-thinning nanocomposite hydrogels composed of synthetic silicate nanoplatelets and gelatin as injectable hemostatic agents. These materials are demonstrated to decrease in vitro blood clotting times by 77%, and to form stable clot-gel systems. In vivo tests indicated that the nanocomposites are biocompatible and capable of promoting hemostasis in an otherwise lethal liver laceration. The combination of injectability, rapid mechanical recovery, physiological stability, and the ability to promote coagulation result in a hemostat for treating incompressible wounds in out-of-hospital, emergency conditions.
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Affiliation(s)
- Akhilesh K. Gaharwar
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Reginald K. Avery
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Alexander Assmann
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Cardiovascular Surgery, Heinrich Heine University, Medical Faculty, 40225 Duesseldorf, Germany
| | - Arghya Paul
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Gareth H. McKinley
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ali Khademhosseini
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Address correspondence to ,
| | - Bradley D. Olsen
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Address correspondence to ,
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Spiller KL, Anfang RR, Spiller KJ, Ng J, Nakazawa KR, Daulton JW, Vunjak-Novakovic G. The role of macrophage phenotype in vascularization of tissue engineering scaffolds. Biomaterials 2014; 35:4477-88. [PMID: 24589361 DOI: 10.1016/j.biomaterials.2014.02.012] [Citation(s) in RCA: 626] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 02/07/2014] [Indexed: 12/27/2022]
Abstract
Angiogenesis is crucial for the success of most tissue engineering strategies. The natural inflammatory response is a major regulator of vascularization, through the activity of different types of macrophages and the cytokines they secrete. Macrophages exist on a spectrum of diverse phenotypes, from "classically activated" M1 to "alternatively activated" M2 macrophages. M2 macrophages, including the subsets M2a and M2c, are typically considered to promote angiogenesis and tissue regeneration, while M1 macrophages are considered to be anti-angiogenic, although these classifications are controversial. Here we show that in contrast to this traditional paradigm, primary human M1 macrophages secrete the highest levels of potent angiogenic stimulators including VEGF; M2a macrophages secrete the highest levels of PDGF-BB, a chemoattractant for stabilizing pericytes, and also promote anastomosis of sprouting endothelial cells in vitro; and M2c macrophages secrete the highest levels of MMP9, an important protease involved in vascular remodeling. In a murine subcutaneous implantation model, porous collagen scaffolds were surrounded by a fibrous capsule, coincident with high expression of M2 macrophage markers, while scaffolds coated with the bacterial lipopolysaccharide were degraded by inflammatory macrophages, and glutaraldehyde-crosslinked scaffolds were infiltrated by substantial numbers of blood vessels, accompanied by high levels of M1 and M2 macrophages. These results suggest that coordinated efforts by both M1 and M2 macrophages are required for angiogenesis and scaffold vascularization, which may explain some of the controversy over which phenotype is the angiogenic phenotype.
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Affiliation(s)
- Kara L Spiller
- Department of Biomedical Engineering, Columbia University, 622 West 168th Street, New York, NY 10032, USA; School of Biomedical Engineering, Science, and Health Systems, Drexel University, 3141 Chestnut St., Philadelphia, PA 19104, USA
| | - Rachel R Anfang
- Department of Biomedical Engineering, Columbia University, 622 West 168th Street, New York, NY 10032, USA
| | - Krista J Spiller
- Department of Pathology, Columbia University, 630 West 168th Street, New York, NY 10032, USA
| | - Johnathan Ng
- Department of Biomedical Engineering, Columbia University, 622 West 168th Street, New York, NY 10032, USA
| | - Kenneth R Nakazawa
- Department of Biomedical Engineering, Columbia University, 622 West 168th Street, New York, NY 10032, USA
| | - Jeffrey W Daulton
- Lincoln Laboratory, Massachusetts Institute of Technology, 244 Wood Street, Lexington, MA 02420, USA
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, 622 West 168th Street, New York, NY 10032, USA.
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Biopolymeric Micro- and Nanoparticles: Preparation, Characterization and Industrial Applications. MULTIFACETED DEVELOPMENT AND APPLICATION OF BIOPOLYMERS FOR BIOLOGY, BIOMEDICINE AND NANOTECHNOLOGY 2013. [DOI: 10.1007/12_2012_202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Haroun AA, El-Halawany NR, Loira-Pastoriza C, Maincent P. Synthesis and in vitro release study of ibuprofen-loaded gelatin graft copolymer nanoparticles. Drug Dev Ind Pharm 2012; 40:61-5. [PMID: 23244199 DOI: 10.3109/03639045.2012.746359] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE This work deals with the preparation, characterization and in vitro release study of IBU-loaded gel graft copolymer nanoparticles. METHOD Gelatin (Gel) graft copolymer nanoparticles were prepared using styrene (Sty) and/or 2-hydroxyethyl methacrylate (HEMA) monomers in the presence of potassium persulfate and glutaraldehyde as an initiator and cross-linker, respectively. The prepared nanoparticles as sustained release drug carriers were investigated using the nonsteriodal anti-inflammatory model drug, ibuprofen (IBU). RESULTS The prepared nanoparticles as sustained release drug carriers were investigated using the nonsteriodal anti-inflammatory model drug, IBU. The prepared Gel/HEMA and Gel/Sty nanoparticles exhibited particles size ranging from 15 to 17 nm and from 0.42 to 5 mm, respectively. The dissolution of IBU in phosphate buffer, pH 7.4, at 37°C from the prepared nanoparticles was evaluated using UV spectroscopy. In addition, the prepared nanoparticles were characterized using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), transmitting electron microscope (TEM) and zeta potential/particle size analyzer. In vitro dissolution study showed that the dissolution rates of the crosslinked nanoparticles were retarded relative to the uncrosslinked ones. Moreover, the released amount constantly decreases with increasing gluteraldehyde content in the gel nanoparticles. CONCLUSION Crosslinked gel-based graft copolymers exhibited slow IBU release within six hours. Furthermore, results from different characterization techniques such as TEM, particles size and zeta potential measurements confirmed the formation of pH-responsive gel-graft copolymer nanoparticles.
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Singh D, Choudhary V, Dinda AK, Koul V. Interpenetrating Polymer Networks Based on Gelatin and Poly(Vinyl Pyrollidone): Evaluation of Degradation, Histocompatibility, Cytotoxicity, and Drug Release. INT J POLYM MATER PO 2012. [DOI: 10.1080/00914037.2011.617340] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Xu K, Kleinbeck KR, Kao WJ. Multifunctional Biomaterial Matrix for Advanced Wound Healing. Adv Wound Care (New Rochelle) 2012; 1:75-80. [PMID: 24527284 DOI: 10.1089/wound.2011.0349] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Modern wound dressings provide a moist healing environment and facilitate faster and higher quality of healing. A new semi-interpenetrating network (sIPN) biomaterial platform based on poly(ethylene glycol) (PEG) and gelatin was developed as a multi-functional matrix for wound care. THE PROBLEM Besides providing a moist environment and facilitating the healing process, advanced wound dressings may be designed to serve as delivery matrices for drugs and therapeutic cells. New and effective treatments should also comply with clinical settings and be easy to use. No single treatment exists today that can fulfill all these requirements; however, advancement in multifunctional biomaterial design and development holds promise to fill this technology gap. BASIC/CLINICAL SCIENCE ADVANCES PEG + gelatin sIPN provides an ideal platform for fundamental research in cell-cell and cell-biomaterial interaction that is important in wound healing. The in situ forming ability of sIPN facilitates its use in large and irregular wounds with complex contours and crevices. CLINICAL CARE RELEVANCE Although various commercially available wound dressings have been produced, a low-cost, easy-to-use, and biofunctionalizable biomaterial that provides a moist environment and facilitates healing is still a target of active tissue regeneration research. CONCLUSION Extensive preclinical data support the use of in situ polymerized sIPN in advanced wound care.
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Affiliation(s)
- Kedi Xu
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin—Madison, Madison, Wisconsin
- Department of Biomedical Engineering, College of Biomedical Engineering and Instrumental Science, Zhejiang University, People's Republic of China
| | - Kyle R. Kleinbeck
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin—Madison, Madison, Wisconsin
| | - Weiyuan John Kao
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin—Madison, Madison, Wisconsin
- Department of Biomedical Engineering, College of Engineering, University of Wisconsin—Madison, Madison, Wisconsin
- Department of Surgery, School of Medicine and Public Health, University of Wisconsin—Madison, Madison, Wisconsin
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Yuan Q, Fu Y, Kao WJ, Janigro D, Yang H. Transbuccal Delivery of CNS Therapeutic Nanoparticles: Synthesis, Characterization, and In Vitro Permeation Studies. ACS Chem Neurosci 2011; 2:676-683. [PMID: 22184511 DOI: 10.1021/cn200078m] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
This work utilized polyamidoamine (PAMAM) dendrimer G4.5 as the underlying carrier to construct CNS therapeutic nanoparticles and explored the buccal mucosa as an alternative absorption site for administration of the dendritic nanoparticles. Opioid peptide DPDPE was chosen as a model CNS drug. It was coupled to PAMAM dendrimer G4.5 with polyethylene glycol (PEG) or with PEG and transferrin receptor monoclonal antibody OX26 (i.e., PEG-G4.5-DPDPE and OX26-PEG-G4.5-DPDPE). The therapeutic dendritic nanoparticles labeled with 5-(aminoacetamido) fluorescein (AAF) were studied for transbuccal transport using a vertical Franz diffusion cell system mounted with porcine buccal mucosa. For comparison, AAF-labeled PAMAM dendrimers G3.5 and G4.5, and fluorescein isothiocynate (FITC)-labeled G3.0 and G4.0 were also tested for transbuccal delivery. The permeability of PEG-G4.5 (AAF)-DPDPE and OX26-PEG-G4.5(AAF)-DPDPE were on the order of 10(-7) - 10(-6) cm/s. Coadministration of bile salt sodium glycodeoxycholate (NaGDC) enhanced the permeability of dendritic nanoparticles by multiple folds. Similarly, a multifold increase of permeability of dendritic nanoparticles across the porcine buccal mucosal resulted from the application of mucoadhesive gelatin/PEG semi-interpenetrating network (sIPN). These results indicate that transbuccal delivery is a possible route for administration of CNS therapeutic nanoparticles.
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Affiliation(s)
- Quan Yuan
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | | | | | | | - Hu Yang
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia 23284, United States
- Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, United States
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Lai JY. Biocompatibility of chemically cross-linked gelatin hydrogels for ophthalmic use. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:1899-1911. [PMID: 20238149 DOI: 10.1007/s10856-010-4035-3] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2009] [Accepted: 02/22/2010] [Indexed: 05/27/2023]
Abstract
Biocompatibility is a major requirement for the development of functional biomaterials for ophthalmic applications. In this study, we investigated the effect of cross-linker functionality on ocular biocompatibility of chemically modified gelatin hydrogels. The test materials were cross-linked with glutaraldehyde (GTA) or 1-ethyl-3-(3-dimethyl aminopropyl)carbodiimide (EDC), and were analyzed using in vitro and in vivo assays. Primary rat iris pigment epithelial cultures were incubated with various gelatin discs for 2 days, and the cellular responses were monitored by cell proliferation, viability, and pro-inflammatory gene and cytokine expression. The results demonstrated that the cells exposed to EDC cross-linked gelatins had relatively lower lactate dehydrogenase activity, cytotoxicity, and interleukin-1beta and tumor necrosis factor-alpha levels than did those to GTA treated samples. In addition, the gelatin implants were inserted in the anterior chamber of rabbit eyes for 12 weeks and characterized by clinical observations and scanning electron microscopy studies. The EDC cross-linked gelatin hydrogels exhibited good biocompatibility and were well tolerated without causing toxicity and adverse effects. However, a significant inflammatory reaction was elicited by the presence of GTA treated materials. It was noted that, despite its biocompatibility, the potential application of non-cross-linked gelatin for local delivery of cell and drug therapeutics would be limited due to rapid dissolution in aqueous environments. In conclusion, these findings suggest ocular cell/tissue response to changes in cross-linker properties. In comparison to GTA treatment, the EDC cross-linking is more suitable for preparation of chemically modified gelatin hydrogels for ophthalmic use.
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Affiliation(s)
- Jui-Yang Lai
- Institute of Biochemical and Biomedical Engineering, Chang Gung University, 33302, Taoyuan, Taiwan, Republic of China.
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Shukla SK, Mishra S, Sharma M, Bajpai AK, Bajpai R. Studies on Mechanical and Antithrombogenic Behaviors of Polyvinyl Alcohol and Gelatin Based Novel Binary Polymer Blends with Grafted Polyacrylamide Chains. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2010. [DOI: 10.1080/10601325.2010.483395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Multifunctional photopolymerized semiinterpenetrating network (sIPN) system containing bupivacaine and silver sulfadiazine is an effective donor site treatment in a swine model. J Burn Care Res 2010; 31:137-45. [PMID: 20061849 DOI: 10.1097/bcr.0b013e3181cb8f27] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Previously, we have shown in a cross-comparison study that multifunctional photopolymerized semiinterpenetrating network (sIPN) system is an effective donor site treatment in a swine model. The advantages of sIPN include spray-on application, in situ photopolymerization, and ability to cover large contoured areas. sIPN has also been shown to be an effective delivery vehicle for keratinocyte growth factor, dexamethasone, bupivacaine, and silver sulfadiazine in vitro. Our aim for this study was to show that these products delivered to the wound bed with sIPN would not change the wound healing characteristics compared with the control site through qualitative clinical evaluation and to compare the rate and quality of donor site healing through histologic evaluation. Eight Yucatan swine of 40 lbs each were randomly divided into four groups of two pigs before surgery. Each animal had 5.6% TBSA of skin harvested from two different dorsal regions, with one at 22/1000th-inch and the other at 30/1000th-inch setting on the dermatome. Each test site on each animal was then sequentially dressed with 50 cm(2) of Xeroform gauze, sIPN, sIPN loaded with 0.5% bupivacaine, or sIPN loaded with 1% silver sulfadiazine. sIPN with or without soluble drugs were applied as liquid, then photopolymerized in situ to form an elastic covering. Each of the test areas was separated by 50 cm(2) of autograft, which was used to divide the test areas. Wound assessment and killing occurred at days 7, 9, 14, and 21. A full-thickness biopsy was taken from each of the study areas for histological analysis. By 14 days, all areas showed complete epidermal coverage histologically. The 30/1000th-inch site revealed a thicker, more irregular dermis compared with the 22/1000th-site. Evaluation of the day-21 sites revealed equal thinning and flattening of the new epidermis. No site showed full restoration of the rete ridges. No signs of infection were seen in clinical or histological evaluations of any treatment. The addition of bupivacaine and silver sulfadiazine to sIPN does not show any alterations in wound healing of a donor site in a swine model when compared with sIPN without loaded drugs and a standard control dressing. This efficacy may be coupled with established localized sIPN drug delivery profiles and allow further studies to evaluate the efficacy of these drugs to promote healing, eradicate and prevent infection, and manage pain.
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Sundar S, Kundu J, Kundu SC. Biopolymeric nanoparticles. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2010; 11:014104. [PMID: 27877319 PMCID: PMC5090546 DOI: 10.1088/1468-6996/11/1/014104] [Citation(s) in RCA: 162] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2009] [Revised: 02/26/2010] [Accepted: 01/27/2010] [Indexed: 05/12/2023]
Abstract
This review on nanoparticles highlights the various biopolymers (proteins and polysaccharides) which have recently revolutionized the world of biocompatible and degradable natural biological materials. The methods of their fabrication, including emulsification, desolvation, coacervation and electrospray drying are described. The characterization of different parameters for a given nanoparticle, such as particle size, surface charge, morphology, stability, structure, cellular uptake, cytotoxicity, drug loading and drug release, is outlined together with the relevant measurement techniques. Applications in the fields of medicine and biotechnology are discussed along with a promising future scope.
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Affiliation(s)
| | - Joydip Kundu
- Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India
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Bhardwaj U, Sura R, Papadimitrakopoulos F, Burgess DJ. PLGA/PVA hydrogel composites for long-term inflammation control following s.c. implantation. Int J Pharm 2010; 384:78-86. [DOI: 10.1016/j.ijpharm.2009.09.046] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2009] [Revised: 09/23/2009] [Accepted: 09/24/2009] [Indexed: 10/20/2022]
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Multifunctional in situ photopolymerized semi-interpenetrating network system is an effective donor site dressing: a cross comparison study in a swine model. J Burn Care Res 2009; 30:37-45. [PMID: 19131760 DOI: 10.1097/bcr.0b013e3181921f98] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Effective dressings for donor sites or other partial thickness wounds must promote removal of nonviable or necrotic tissue, eradication and prevention of microbial infiltrate, exudate absorbance, and regrowth of healthy epidermis and dermis. There are many commonly used products that facilitate these processes. Established properties of an in situ photopolymerizable semi-interpenetrating network (sIPN) suggest that it is also a viable treatment option. The widely varying material properties suggest that these dressing treatments may elicit different healing responses via different cellular mechanisms. In this study, we sought to resolve the differences in healing between Acticoat, sIPN, nonadherent dressing with Tisseel, and Xeroform dressing treatments in a porcine partial thickness wound model. Donor site wounds were produced on pigs at two cut depths and dressed with Acticoat, sIPN, nonadherent dressing with Tisseel, and Xeroform with alternatively placed autografts to provide a control area between each test site. Pigs were euthanized at 4, 7, 14, and 42 days for macroscopic examination and biopsy collection. Biopsies were analyzed histologically by two blinded observers for cellular densities and regional thicknesses within the tissue. sIPN- and Xeroform-treated wounds were healed by 7 days, and Acticoat- and nonadherent dressing with Tisseel-treated wounds were healed by 14 days. Inflammatory responses were between comparable treatment type across all time periods. Dermal granulation features increased with time but were not significantly different. All dressing treatments elicited wound healing without outstanding toxicity or pathology indicating that sIPN is a comparable and viable treatment for partial thickness wounds.
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Kleinbeck KR, Bader RA, Kao WJ. Concurrent in vitro release of silver sulfadiazine and bupivacaine from semi-interpenetrating networks for wound management. J Burn Care Res 2009; 30:98-104. [PMID: 19060724 PMCID: PMC3784245 DOI: 10.1097/bcr.0b013e3181921ed9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
In situ photopolymerized semi-interpenetrating networks (sIPNs) composed of poly(ethylene glycol) and gelatin are promising multifunctional matrices for a regenerative medicine approach to dermal wound treatment. In addition to previously demonstrated efficacy in critical defects, sIPNs also function as drug delivery matrices for compounds loaded as either soluble or covalently linked components. Simultaneous release of silver sulfadiazine and bupivacaine from the sIPN would provide multiple-hit management of dermal wounds that minimizes infection, and manages pain along with sIPN absorption of exudates and facilitation of epidermal regrowth. We characterized the release of soluble silver sulfadiazine and bupivacaine and compared it with an established release model. Efficacy of released silver sulfadiazine was confirmed in vitro on Staphylococcus aureus, methicillin resistant S. aureus, and Pseudomonas aeruginosa. Bupivacaine loaded without silver sulfadiazine showed incomplete release, whereas simultaneous loading with silver sulfadiazine facilitated 100% bupivacaine release. Silver sulfadiazine released at 98% without bupivacaine and 96% with bupivacaine. Silver sulfadiazine released onto bacterial cultures inhibited all three strains dose dependently. sIPNs effectively release bupivacaine and silver sulfadiazine while maintaining the antimicrobial activity of silver sulfadiazine. Drug loaded sIPNs have potential to improve wound management by providing multi-drug delivery along with an effective wound treatment.
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Affiliation(s)
| | | | - Weiyuan John Kao
- School of Pharmacy, University of Wisconsin-Madison
- Department of Biomedical Engineering, College of Engineering, University of Wisconsin-Madison
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Extended interaction of beta1 integrin subunit-deficient cells (GD25) with surfaces modified with fibronectin-derived peptides: Culture optimization, adhesion and cytokine panel studies. Acta Biomater 2008; 4:1172-86. [PMID: 18514047 DOI: 10.1016/j.actbio.2008.03.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2008] [Revised: 03/05/2008] [Accepted: 03/20/2008] [Indexed: 01/15/2023]
Abstract
The modification of biomaterials with extracellular matrix-mimicking factors is a common technique used to influence the cellular response through integrin-mediated signaling. The inherent limitations of antibody-inhibition studies necessitate the use of complementary methods to block integrin function to confirm cell-surface interaction. In this study, we employed a beta1 integrin-deficient cell line, GD25, to investigate the role of beta1 subunit in cell adhesion and subsequent cytokine (granulocyte macrophage colony stimulating factor; interleukin (IL)-1alpha; IL-1beta; IL-6; monocyte chemoattractant protein-1; regulated upon activation, normal T-cell expressed, and secreted; tumor necrosis factor-alpha) release kinetics in the presence of tissue culture polystyrene (TCPS) and semi-interpenetrating polymer networks (sIPN) modified with fibronectin (FN)-mimic peptides (RGD, PHSRN). Culture conditions (i.e. seeding density, medium, serum supplementation) were optimized for long-term observation. Differences in cell adhesion, cell viability and cytokine release behavior were dependent on the presence of the beta1 integrin subunit, FN, sIPN cast method and peptide identity. By comparing two complementary techniques for assaying integrin function, we observed both similarities (i.e. decreased adhesion to FN-absorbed TCPS and increased IL-1beta release at 96h) and differences (i.e. no difference in adhesion or IL-1beta release in the presence of different sIPN surfaces) when the function of the beta1 subunit was blocked in cell adhesion and signaling in the presence of biomaterials.
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Muscatello MMW, Asher SA. Poly(vinyl alcohol) Rehydratable Photonic Crystal Sensor Materials. ADVANCED FUNCTIONAL MATERIALS 2008; 1186:18-8. [PMID: 21666875 PMCID: PMC3111221 DOI: 10.1002/adfm.200701210] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We developed a new photonic crystal hydrogel material based on the biocompatible polymer poly (vinyl alcohol) (PVA), which can be reversibly dehydrated and rehydrated, without the use of additional fillers, while retaining the diffraction and swelling properties of polymerized crystalline colloidal arrays (PCCA). This chemically modified PVA hydrogel photonic crystal efficiently diffracts light from the embedded crystalline colloidal array. This diffraction optically reports on volume changes occurring in the hydrogel by shifts in the wavelength of the diffracted light. We fabricated a pH sensor, which demonstrates a 350 nm wavelength shift between pH values of 3.3 and 8.5. We have also fabricated a Pb(+2) sensor, in which pendant crown ether groups bind lead ions. Immobilization of the ions within the hydrogel increases the osmotic pressure due to the formation of a Donnan potential, swelling the hydrogel and shifting the observed diffraction in proportion to the concentration of bound ions. The sensing responses of rehydrated PVA pH and Pb(+2) sensors were similar to that before drying. This reversibility of rehydration enables storage of these hydrogel photonic crystal sensors in the dry state, which makes them much more useful for commercial applications.
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Affiliation(s)
| | - Sanford A. Asher
- Department of Chemistry, University of Pittsburgh 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260 (USA)
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Simmons A, Padsalgikar AD, Ferris LM, Poole-Warren LA. Biostability and biological performance of a PDMS-based polyurethane for controlled drug release. Biomaterials 2008; 29:2987-95. [PMID: 18436300 DOI: 10.1016/j.biomaterials.2008.04.007] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2008] [Accepted: 04/01/2008] [Indexed: 10/22/2022]
Abstract
Polymers have been used to deliver therapeutic agents in a range of medical devices with drug eluting stents being the most widespread current application. Although polymers enable controlled release of a therapeutic agent, the polymeric surface has been reported to provide suboptimal biocompatibility and haemocompatibility and it has been suggested that currently used polymers may be at least partly responsible for the late adverse events observed in intravascular stent systems. In this study, the biostability and biological performance of a siloxane-based polyurethane elastomer (E2A) demonstrating excellent long-term biostability in the unloaded state was investigated following incorporation of a therapeutic agent. After implantation in an ovine model for 6 months, samples were assessed using SEM and ATR-FTIR to determine changes in the surface chemical structure and morphology of the materials and tensile testing was used to examine changes in bulk characteristics. Biological response was assessed using in vitro cytotoxicity testing and histological analysis. Results indicated that incorporation of 25mg/g dexamethasone acetate (DexA) into the siloxane-based polyurethane resulted in no significant difference in the biostability and biocompatibility of the material. Some level of cytotoxic potential was exhibited which was believed to result from residual DexA leaching from samples during the extraction process. These findings suggest that E2A is a potential candidate for a delivery vehicle of therapeutic agents in implantable drug delivery applications.
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Affiliation(s)
- Anne Simmons
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia.
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Hillig WB, Choi Y, Murthy S, Murtha S, Natravali N, Ajayan P. An open-pored gelatin/hydroxyapatite composite as a potential bone substitute. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2008; 19:11-7. [PMID: 17701320 DOI: 10.1007/s10856-007-0154-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2006] [Accepted: 03/29/2006] [Indexed: 05/16/2023]
Abstract
Gelatin matrix composites reinforced with fine hydroxyapatite (HA) dispersants were investigated in an exploratory study for their suitability as surgical implants. The criteria for the candidate implant material were that it: (1) be benign, (2) have useful mechanical properties under quasi-in vivo environmental conditions, (3) be dimensionally stable, (4) be sterilizable, (5) be completely assimilable, and (6) exhibit contiguous porosity to encourage invasion by the live host tissue. The synthesis of a composite comprised of a HA particulate reinforcement of a cross-linked gelatin matrix was undertaken to provide preliminary data on its swelling behavior and compressive stiffness that is retained after extended immersion in normal saline solution. A new approach leading to a tailorable, open pore microstructure is described. At a sufficiently high ratio of HA to gelatin the attainable compressive stiffness and the resistance to swelling suggests that this composite system offers potential as a versatile surgical implant material. Suggestions for further studies are offered.
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Affiliation(s)
- William B Hillig
- Department of Material Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USA.
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Waldeck H, Chung AS, Kao WJ. Interpenetrating polymer networks containing gelatin modified with PEGylated RGD and soluble KGF: synthesis, characterization, and application in in vivo critical dermal wound. J Biomed Mater Res A 2007; 82:861-71. [PMID: 17335014 DOI: 10.1002/jbm.a.31054] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The purpose of this study was to evaluate the biocompatibility and the efficacy in wound healing of a gelatin-based interpenetrating polymer network (IPN) containing poly(ethylene glycol) (PEG)-ylated RGD and soluble KGF-1 (RGD-IPN+KGF). IPNs were applied to full-thickness wounds on a rat model. Wound healing was assessed through histological grading of the host response and percent area contraction at 2 days, 1 week, 2 weeks, and 3 weeks. A control IPN containing unmodified gelatin (unmod-IPN) and a conventional clinical bandage were applied to similar wounds and also evaluated. During the first week of healing, the unmod-IPN and conventional dressing wound showed a greater amount of contraction than that of RGD-IPN+KGF. However, by 3 weeks the extent of wound contraction was comparable between treatments. The RGD-IPN+KGF treated wound demonstrated lower macrophage and fibroblast densities at 3 weeks as compared to unmod-IPN treated wounds. RGD-IPN+KGF acted as a tissue scaffold while preventing the entry of foreign bodies, advantages not seen with the conventional dressing. The extent of cellularity and extracellular matrix organization was higher for wounds healed with RGD-IPN+KGF than those healed with unmod-IPN. These results indicate that both soluble and immobilized bioactive factors can be incorporated into our IPN platform to enhance the rate and the quality of dermal wound healing.
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Affiliation(s)
- Heather Waldeck
- Department of Biomedical Engineering, College of Engineering, University of Wisconsin-Madison, Wisconsin, USA
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Chung AS, Gao Q, Kao WJ. Either integrin subunit beta1 or beta3 is involved in mediating monocyte adhesion, IL-1beta protein and mRNA expression in response to surfaces functionalized with fibronectin-derived peptides. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2007; 18:713-29. [PMID: 17623553 DOI: 10.1163/156856207781034179] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We synthesized gelatin-based, interpenetrating network (IPN) scaffolds immobilized with fibronectin (FN)-derived peptides to assess monocyte-biomaterial interaction. Human primary monocytes were seeded onto peptide-grafted IPN or tissue-culture polystyrene (TCPS) pre-adsorbed with FN or FN-derived peptides. Monocyte cell density on both TCPS and IPN surfaces was higher in the presence of the arginine-glycine-aspartic acid (RGD) peptide. Pretreatment with anti-integrin beta1 or beta3 antibody decreased monocyte density on all ligand-modified TCPS and IPN. Interleukin-1 beta (IL-1beta) protein levels of cells on modified TCPS decreased over time. IL-1beta expression of monocytes in the presence of IPNs peaked at 24 h and then decreased through 168 h. Ligand identity did not affect IL-1beta expression in either TCPS or IPN samples. Pretreatment with anti-integrin beta1 or beta3 antibody reduced IL-1beta levels from both TCPS and IPN samples in a ligand-independent manner, particularly at 24 h. Monocytic IL-1beta mRNA expression in IPN samples without antibody pretreatment was highest at 2 h and decreased over time. IL-1beta mRNA expression in cells with anti-integrin beta1 or beta3 antibody pretreatment was similar to those without antibody pretreatment, except for methoxygrafted IPN samples. The change in IL-1beta mRNA expression did not correlate with changes in protein expression. The results indicate that monocyte adhesion was affected by the substrate and the RGD sequence and beta1 or beta3 containing integrin receptors. beta1- or beta3-containing integrin receptors were also involved in IL-1beta gene and protein expression in monocytes adhered to gelatin-based biomaterial surfaces.
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Affiliation(s)
- Amy S Chung
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
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Bhardwaj U, Sura R, Papadimitrakopoulos F, Burgess DJ. Controlling acute inflammation with fast releasing dexamethasone-PLGA microsphere/pva hydrogel composites for implantable devices. J Diabetes Sci Technol 2007; 1:8-17. [PMID: 19888374 PMCID: PMC2769608 DOI: 10.1177/193229680700100103] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Continuous release of dexamethasone from PLGA microsphere/PVA hydrogel composites has been shown to suppress the inflammatory tissue reaction in response to subcutaneously implanted foreign material for a period of one month. The scope of the present work is to investigate whether suppressing the initial acute inflammatory phase with fast releasing dexamethasone-PLGA microsphere/PVA composites (that release the drug over a period of one week) would prevent the development of a foreign body reaction in response to implantation in the subcutaneous tissue using a rat model. METHODS Dexamethasone loaded PLGA microspheres were prepared using the solvent evaporation method. In vitro release from microspheres was analyzed using USP apparatus 4 in phosphate buffered saline (PBS) at 37 degrees C. Composites were fabricated in 18G needles by freeze-thaw cycling the PVA/microsphere dispersion. The composites were implanted in the subcutaneous tissue of anesthetized rats. The pharmacodynamic effect was evaluated by histological examination of the tissue surrounding the composites at pre-determined time points. RESULTS In vitro release studies showed that most of the drug entrapped in the microspheres was released within one week. At days 3 and 8, these fast releasing dexamethasone containing composites suppressed the acute phase of inflammation but did not prevent the development of an inflammatory reaction after dexamethasone was completely released from the composites. By day 30, chronic inflammation and fibrosis were observed in the tissue surrounding the drug-containing composites. On days 3 and 8, the number of inflammatory cells in the vicinity of the dexamethasone containing composites was similar to that in normal tissue. However, the number of inflammatory cells was higher in drug-containing composites as compared to drug-free composites by day 30. This was due to the inflammation being in a more advanced stage in drug-free composites where a granulomatous reaction had already developed. CONCLUSION Fast release of dexamethasone from PLGA/PVA composites did not provide long-term protection against the foreign body reaction in response to implantation. It would appear that a sustained delivery of anti-inflammatory agents such as dexamethasone is necessary to suppress inflammation throughout the implant life-time.
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Affiliation(s)
- Upkar Bhardwaj
- School of Pharmacy, University of Connecticut, Storrs, CT
| | - Radhakrishna Sura
- Department of Pathobiology and Veterinary Science, University of Connecticut, Storrs, CT
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Gao Q, Chung AS, Kao WJ. Monocytic U937 Adhesion, Tumor Necrosis Factor-Alpha and Interleukin-1 Beta Expression in Response to Gelatin-Based Networks Grafted with Arginine-Glycine-Aspartic Acid and Proline-Histidine-Serine-Arginine-Asparagine Oligopeptides. ACTA ACUST UNITED AC 2007; 13:179-85. [PMID: 17518591 DOI: 10.1089/ten.2006.0007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
In this study we synthesized gelatin-based, tissue-engineering, interpenetrating network (IPN) scaffolds immobilized with fibronectin (FN)-derived peptides to assess monocyte-biomaterial interaction. Human promonocytic U937 cells were seeded onto peptide-grafted IPN or tissue-culture polystyrene plate (TCPS) pre-adsorbed with FN or FN-derived peptides. The presence of RGD influenced U937 density on IPN. Interleukin-1 beta (IL-1beta) messenger ribonucleic acid (mRNA) expression in adherent U937 on treated TCPS was slightly upregulated at 4 h. Tumor necrosis factor alpha (TNF-alpha) and IL-1beta mRNA expression in adherent U937 on all IPNs was generally downregulated at 4 h. This downregulation of IL-1beta mRNA apparently varied in IPNs grafted with different ligand and was still present at 24 h. TNF-alpha and IL-1beta proteins released from U937 on treated TCPS were comparable with the control at 24 h, but TNF-alpha and IL-1beta protein expression in U937 on IPNs was lower at 24 h than on the TCPS control. The results indicate that the tissue-engineering substrate and the bioactive peptides modulate the initial U937 adhesion and the subsequent inflammatory cytokine gene and protein expression.
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Affiliation(s)
- Qiang Gao
- School of Pharmacy, Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53705, USA
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