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Alapure BV, Lu Y, He M, Chu CC, Peng H, Muhale F, Brewerton YL, Bunnell B, Hong S. Accelerate Healing of Severe Burn Wounds by Mouse Bone Marrow Mesenchymal Stem Cell-Seeded Biodegradable Hydrogel Scaffold Synthesized from Arginine-Based Poly(ester amide) and Chitosan. Stem Cells Dev 2018; 27:1605-1620. [PMID: 30215325 PMCID: PMC6276600 DOI: 10.1089/scd.2018.0106] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 09/12/2018] [Indexed: 12/20/2022] Open
Abstract
Severe burns are some of the most challenging problems in clinics and still lack ideal modalities. Mesenchymal stem cells (MSCs) incorporated with biomaterial coverage of burn wounds may offer a viable solution. In this report, we seeded MSCs to a biodegradable hybrid hydrogel, namely ACgel, that was synthesized from unsaturated arginine-based poly(ester amide) (UArg-PEA) and chitosan derivative. MSC adhered to ACgels. ACgels maintained a high viability of MSCs in culture for 6 days. MSC seeded to ACgels presented well in third-degree burn wounds of mice at 8 days postburn (dpb) after the necrotic full-thickness skin of burn wounds was debrided and filled and covered by MSC-carrying ACgels. MSC-seeded ACgels promoted the closure, reepithelialization, granulation tissue formation, and vascularization of the burn wounds. ACgels alone can also promote vascularization but less effectively compared with MSC-seeded ACgels. The actions of MSC-seeded ACgels or ACgels alone involve the induction of reparative, anti-inflammatory interleukin-10, and M2-like macrophages, as well as the reduction of inflammatory cytokine TNFα and M1-like macrophages at the late inflammatory phase of burn wound healing, which provided the mechanistic insights associated with inflammation and macrophages in burn wounds. For the studied regimens of these treatments, no toxicity was identified to MSCs or mice. Our results indicate that MSC-seeded ACgels have potential use as a novel adjuvant therapy for severe burns to complement commonly used skin grafting and, thus, minimize the downsides of grafting.
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Affiliation(s)
- Bhagwat V. Alapure
- Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Yan Lu
- Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Mingyu He
- Department of Fiber Science and Apparel Design, Cornell University, Ithaca, New York
| | - Chih-Chang Chu
- Department of Fiber Science and Apparel Design, Cornell University, Ithaca, New York
- Department of Biomedical Engineering, Cornell University, Ithaca, New York
| | - Hongying Peng
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Filipe Muhale
- Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | | | - Bruce Bunnell
- Center for Stem Cell Research and Regenerative Medicine, Tulane University School of Medicine, New Orleans, Louisiana
| | - Song Hong
- Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Department of Ophthalmology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
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202
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Ahmadi AR, Chicco M, Huang J, Qi L, Burdick J, Williams GM, Cameron AM, Sun Z. Stem cells in burn wound healing: A systematic review of the literature. Burns 2018; 45:1014-1023. [PMID: 30497816 DOI: 10.1016/j.burns.2018.10.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 08/11/2018] [Accepted: 10/19/2018] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Severe burns are often associated with high morbidity and unsatisfactory functional and esthetic outcomes. Over the last two decades, stem cells have generated great hopes for the treatment of numerous conditions including burns. The aim of this systematic review is to evaluate the role of stem cell therapy as a means to promote burn wound healing. METHODS Comprehensive searches in major databases were carried out in March 2017 for articles on stem cell therapy in burn wound healing. In total 2103 articles were identified and screened on the basis of pre-determined inclusion and exclusion criteria. RESULTS Fifteen experimental and two clinical studies were included in the review. The majority of studies reported significant improvement in macroscopic burn wound appearance as well as a trend toward improved microscopic appearance, after stem cell therapy. Other parameters evaluated, such as re-vascularization, collagen formation, level of pro- and anti-inflammatory mediators, apoptosis and cellular infiltrates, yielded heterogeneous results across studies. CONCLUSION Stem cell therapy appears to exert a positive effect in burn wound healing. There is, therefore, justification for continued efforts to evaluate the use of stem cells as an adjunct to first-line therapies in burns.
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Affiliation(s)
- Ali R Ahmadi
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
| | - Maria Chicco
- Department of Surgery, St. Mary's Hospital, Imperial College London, London, United Kingdom
| | - Jinny Huang
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Le Qi
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - James Burdick
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - George M Williams
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Andrew M Cameron
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Zhaoli Sun
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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203
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Shaikh H, Rho JY, Macdougall LJ, Gurnani P, Lunn AM, Yang J, Huband S, Mansfield EDH, Peltier R, Perrier S. Hydrogel and Organogel Formation by Hierarchical Self-Assembly of Cyclic Peptides Nanotubes. Chemistry 2018; 24:19066-19074. [PMID: 30338575 DOI: 10.1002/chem.201804576] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Indexed: 11/10/2022]
Abstract
Breaking away from the linear structure of previously reported peptide-based gelators, this study reports the first example of gel formation based on the use of cyclic peptides made of alternating d- and l-amino acids, known to self-assemble in solution to form long nanotubes. Herein, a library of cyclic peptides was systemically studied for their gelation properties in various solvents, uncovering key parameters driving both organogel and hydrogel formation. The hierarchical nature of the self-assembly process in water was characterised by a combination of electron microscopy imaging and small-angle X-ray scattering, revealing a porous network of entangled nanofibres composed by the aggregation of several cyclic peptide nanotubes. Rheology measurements then confirmed the formation of soft hydrogels.
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Affiliation(s)
- Huda Shaikh
- Department of Chemistry, University of Warwick, CV4 7AL, UK
| | - Julia Y Rho
- Department of Chemistry, University of Warwick, CV4 7AL, UK
| | | | - Pratik Gurnani
- Department of Chemistry, University of Warwick, CV4 7AL, UK
| | - Andrew M Lunn
- Department of Chemistry, University of Warwick, CV4 7AL, UK
| | - Jie Yang
- Department of Chemistry, University of Warwick, CV4 7AL, UK
| | - Steve Huband
- Department of Physics, University of Warwick, CV4 7AL, UK
| | | | - Raoul Peltier
- Department of Chemistry, University of Warwick, CV4 7AL, UK
| | - Sebastien Perrier
- Department of Chemistry, University of Warwick, CV4 7AL, UK.,Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK.,Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, VIC, 3052, Australia
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204
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Nada AA, Soliman AAF, Aly AA, Abou-Okeil A. Stimuli-Free and Biocompatible Hydrogel via Hydrazone Chemistry: Synthesis, Characterization, and Bioassessment. STARCH-STARKE 2018. [DOI: 10.1002/star.201800243] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ahmed A. Nada
- Pre-treatment and Finishing of Cellulosic Fibers Dept.; Textile Research Division; National Research Centre (Scopus Affiliation ID 60014618); Dokki 12622 Giza Egypt
| | - Ahmed A. F. Soliman
- Pharmaceutical and Drug Industries Division; Department of Pharmacognosy; National Research Centre; Dokki, 12622 Giza Egypt
| | - Amal A. Aly
- Pre-treatment and Finishing of Cellulosic Fibers Dept.; Textile Research Division; National Research Centre (Scopus Affiliation ID 60014618); Dokki 12622 Giza Egypt
| | - Ashraf Abou-Okeil
- Pre-treatment and Finishing of Cellulosic Fibers Dept.; Textile Research Division; National Research Centre (Scopus Affiliation ID 60014618); Dokki 12622 Giza Egypt
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205
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Qi C, Xu L, Deng Y, Wang G, Wang Z, Wang L. Sericin hydrogels promote skin wound healing with effective regeneration of hair follicles and sebaceous glands after complete loss of epidermis and dermis. Biomater Sci 2018; 6:2859-2870. [PMID: 30259043 DOI: 10.1039/c8bm00934a] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Full-thickness skin injury affects millions of people worldwide each year. It often leads to scar formation and loss of skin appendages even after clinical treatment. The majority of wound dressings currently used cannot achieve scarless skin regeneration with complete recovery of appendages such as hair follicles and sebaceous glands. Functional regeneration of these skin appendages is a great challenge. However, we achieved this goal by the successful development and utilization of a photo-crosslinkable sericin hydrogel (SMH) as a new type of wound dressing for repairing full-thickness skin injury. SMH implanted in a mouse full-thickness skin injury model promoted scarless wound healing with effective regeneration of hair follicles and sebaceous glands. By employing techniques of molecular biology, biochemistry, and in vivo cell tracing, we revealed the underlying repair mechanisms: SMH inhibited inflammation, stimulated angiogenesis during healing process, prevented scar tissue formation via regulating the expressions of TGF-β1 and TGF-β3, and recruited mesenchymal stem cells to injury sites for regeneration of skin appendages. Collectively, in this study, we developed a sericin-based hydrogel as a wound dressing for full-thickness skin injury repair, uncovered the functional roles of sericin hydrogels in promoting scarless skin regeneration along with effective recovery of skin appendages, and thus unveiled sericin's potential for skin wound healing.
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Affiliation(s)
- Chao Qi
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Luming Xu
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Yan Deng
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Guobin Wang
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Zheng Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China. and Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Lin Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China. and Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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206
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Hyperbaric oxygen-generating hydrogels. Biomaterials 2018; 182:234-244. [DOI: 10.1016/j.biomaterials.2018.08.032] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 08/14/2018] [Accepted: 08/14/2018] [Indexed: 12/11/2022]
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207
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Gao SQ, Chang C, Li JJ, Li Y, Niu XQ, Zhang DP, Li LJ, Gao JQ. Co-delivery of deferoxamine and hydroxysafflor yellow A to accelerate diabetic wound healing via enhanced angiogenesis. Drug Deliv 2018; 25:1779-1789. [PMID: 30338719 PMCID: PMC6201774 DOI: 10.1080/10717544.2018.1513608] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 08/14/2018] [Accepted: 08/15/2018] [Indexed: 12/19/2022] Open
Abstract
Nonhealing chronic wounds on foot induced by diabetes is a complicated pathologic process. They are mainly caused by impaired neovascularization, neuropathy, and excessive inflammation. A strategy, which can accelerate the vessel network formation as well as inhibit inflammatory response at the same time, makes it possible for effective diabetic ulcers treatment. Co-delivery of multiple drugs with complementary bioactivity offers a strategy to properly treat diabetic wound. We previously demonstrated that hydroxysafflor yellow A (HSYA) could accelerate diabetic wound healing through promoting angiogenesis and reducing inflammatory response. In order to further enhance blood vessel formation, a pro-angiogenic molecular called deferoxamine (DFO) was topically co-administrated with HSYA. The in vitro results showed that the combination of DFO and HSYA exerted synergistic effect on enhancing angiogenesis by upregulation of hypoxia inducible factor-1 alpha (HIF-1α) expression. The interpenetrating polymer networks hydrogels, characterized by good breathability and water absorption, were designed for co-loading of DFO and HSYA aiming to recruit angiogenesis relative cells and upgrade wound healing in vivo. Both DFO and HSYA in hydrogel have achieved sustained release. The in vivo studies indicated that HSYA/DFO hydrogel could accelerate diabetic wound healing. With a high expression of Hif-1α which is similar to that of normal tissue. The noninvasive US/PA imaging revealed that the wound could be recovered completely with abundant blood perfusion in dermis after given HSYA/DFO hydrogel for 28 days. In conclusion, combination of pro-angiogenic small molecule DFO and HSYA in hydrogel provides a promising strategy to productively promote diabetic wound healing as well as better the repair quality.
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Affiliation(s)
- Si-Qian Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Chen Chang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Jun-Jun Li
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Ying Li
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Xiao-Qian Niu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Dan-Ping Zhang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Long-Jian Li
- Zhejiang Provincial Corps Hospital of Chinese People's Armed Police Forces, Jiaxing, Zhejiang, P.R. China
| | - Jian-Qing Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R. China
- Jiangsu Engineering Research Center for New-Type External and Transdermal Preparations, Changzhou, P.R. China
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208
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Zhu Q, Jiang M, Liu Q, Yan S, Feng L, Lan Y, Shan G, Xue W, Guo R. Enhanced healing activity of burn wound infection by a dextran-HA hydrogel enriched with sanguinarine. Biomater Sci 2018; 6:2472-2486. [PMID: 30066700 DOI: 10.1039/c8bm00478a] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Burn wounds are associated with a series of risks, such as infection and pathologic scar tissue formation, which significantly delay wound healing and lead to complications. In this study, we successfully fabricated a dextran-hyaluronic acid (Dex-HA) hydrogel enriched with sanguinarine (SA) incorporated into gelatin microspheres (GMs), which had high porosity, good swelling ratio, enhanced NIH-3T3 fibroblast cell proliferation, and sustained SA release profile. The in vitro degradation results indicate that the SA/GMs/Dex-HA hydrogel can be degraded. The in vitro antibacterial tests showed that the SA/GMs/Dex-HA hydrogel can inhibit methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli). We evaluated the wound-healing effects and antibacterial properties of SA/GMs/Dex-HA hydrogels in a rat full-thickness burn infection model. The hematoxylin-eosin (H&E) and Masson's trichrome staining results of the SA/GMs/Dex-HA hydrogel showed that it improved re-epithelialization and enhanced extracellular matrix remodeling, and immunohistochemistry results showed that the expression of TGF-β1 and TNF-α was decreased, while the TGF-β3 expression was increased. Our findings suggest that the SA/GMs/Dex-HA hydrogel provides a potential way for infected burn treatment with high-quality and efficient scar inhibition.
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Affiliation(s)
- Qiyu Zhu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
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209
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Vijayakumar V, Samal SK, Mohanty S, Nayak SK. Recent advancements in biopolymer and metal nanoparticle-based materials in diabetic wound healing management. Int J Biol Macromol 2018; 122:137-148. [PMID: 30342131 DOI: 10.1016/j.ijbiomac.2018.10.120] [Citation(s) in RCA: 184] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/26/2018] [Accepted: 10/14/2018] [Indexed: 01/13/2023]
Abstract
Currently, diabetes mellitus (DM) accelerated diabetic foot ulcer (DFU) remains vivacious health problem related with delayed healing and high amputation rates which leads to enormous clinical obligation. Keeping in view of the foregoing, researchers have been made in their efforts to develop novel materials which accelerate delayed wound healing in the diabetic patient and reduce the adversative influences of DFUs. The most prominent materials used for the wound healing application have biocompatibility, low cytotoxicity, excellent biodegradable properties, and antimicrobial activity properties. Utilization of nanoparticles has emerged as a protruding scientific and technological revolution in controlling DFUs. Biopolymers in combination with bioactive nanoparticles having antimicrobial, antibacterial, and anti-inflammatory properties have great potential in wound care to enhance the healing process of diabetic wound infectious. Combination of antibacterial nanoparticles like silver nanoparticles (AgNPs), gold nanoparticles (AuNPs), copper nanoparticles (CuNPs) etc. with polymeric matrix could efficiently inhibit bacterial growth and at the same time fastens the healing process of a wound. This review briefed the recent development of different natural polymers and antibacterial nanoparticles to mitigate the diabetes mellitus based DFU.
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Affiliation(s)
- Veena Vijayakumar
- School for Advanced Research in Polymers (SARP)-Laboratory for Advanced Research in Polymeric Materials (LARPM), Central Institute of Plastics Engineering and Technology (CIPET), B-25, CNI Complex, Patia, Bhubaneswar, Odisha 751024, India
| | - Sushanta K Samal
- School for Advanced Research in Polymers (SARP)-Laboratory for Advanced Research in Polymeric Materials (LARPM), Central Institute of Plastics Engineering and Technology (CIPET), B-25, CNI Complex, Patia, Bhubaneswar, Odisha 751024, India.
| | - Smita Mohanty
- School for Advanced Research in Polymers (SARP)-Laboratory for Advanced Research in Polymeric Materials (LARPM), Central Institute of Plastics Engineering and Technology (CIPET), B-25, CNI Complex, Patia, Bhubaneswar, Odisha 751024, India
| | - Sanjay K Nayak
- School for Advanced Research in Polymers (SARP)-Laboratory for Advanced Research in Polymeric Materials (LARPM), Central Institute of Plastics Engineering and Technology (CIPET), B-25, CNI Complex, Patia, Bhubaneswar, Odisha 751024, India
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210
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Brassolatti P, Bossini PS, Kido HW, Derencio Oliveira MC, Almeida-Lopes L, Zanardi LM, Napolitano MA, Retto da Silva de Avó L, Araújo-Moreira FM, Parizotto NA. Photobiomodulation and bacterial cellulose membrane in the treatment of third-degree burns in rats. J Tissue Viability 2018; 27:249-256. [PMID: 30318397 DOI: 10.1016/j.jtv.2018.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 08/27/2018] [Accepted: 10/01/2018] [Indexed: 02/08/2023]
Abstract
Burns are injuries caused mainly by thermal trauma, which can progress to unsatisfactory results healing. This study aimed to evaluate the biomaterial (bacterial cellulose membrane) and photobiomodulation, exclusively and associated, in the treatment of third degree burns in rats. Forty male Wistar rats (±280 g) were randomly divided into four groups, with 10 animals each: control group (CG); bacterial cellulose membrane group (MG); laser group (LG) and bacterial cellulose membrane and laser group (MG + L). The burn was caused with a 1 cm2 aluminum plate heated to 150 °C and pressed on the animal's back for 10 s. The treatments were started immediately after induction of injury. For to laser irradiation (660 nm, 100 mW, 25 J/cm2 and energy of 1 J) on five distinct application points were used, on alternate days, a total of five sessions. After ten days of treatment the animals were euthanized for collected samples. One-way ANOVA and Tukey's tests (P < 0.05) were used. Histological analysis revealed differences regarding the healing process phase in each experimental group. MG showed the proliferative phase. The LG demonstrated greater amount of blood vessels and immune expression of VEGF. However, when the treatments were combined, the number of vessels and the immune expression of VEGF factor was lower than LG. Thus, it was concluded that both treatments proposed (biomaterial and LLLT) are good alternatives for third degree burns when applied isolated because they stimulate the healing process by acting on the modulation of the inflammatory phase and promote stimulation of angiogenesis.
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Affiliation(s)
- Patricia Brassolatti
- Department of Morphology and Pathology, Post-Graduate Program of Biotechnology, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil; Research and Education Center for Photo Therapy in Health Science (NUPEN), DMC Equipment Import and Export-Co. Ltda, São Carlos, SP, Brazil.
| | - Paulo Sérgio Bossini
- Research and Education Center for Photo Therapy in Health Science (NUPEN), DMC Equipment Import and Export-Co. Ltda, São Carlos, SP, Brazil
| | - Hueliton Wilian Kido
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, SP, Brazil
| | | | - Luciana Almeida-Lopes
- Research and Education Center for Photo Therapy in Health Science (NUPEN), DMC Equipment Import and Export-Co. Ltda, São Carlos, SP, Brazil
| | - Lisinéia Maria Zanardi
- Research and Education Center for Photo Therapy in Health Science (NUPEN), DMC Equipment Import and Export-Co. Ltda, São Carlos, SP, Brazil
| | - Marcos Aurélio Napolitano
- Research and Education Center for Photo Therapy in Health Science (NUPEN), DMC Equipment Import and Export-Co. Ltda, São Carlos, SP, Brazil
| | | | - Fernando M Araújo-Moreira
- Department of Physics, Post-Graduate Program of Biotechnology, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
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211
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Guebitz GM, Nyanhongo GS. Enzymes as Green Catalysts and Interactive Biomolecules in Wound Dressing Hydrogels. Trends Biotechnol 2018; 36:1040-1053. [DOI: 10.1016/j.tibtech.2018.05.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/16/2018] [Accepted: 05/21/2018] [Indexed: 02/08/2023]
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212
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Yap KK, Yeoh GC, Morrison WA, Mitchell GM. The Vascularised Chamber as an In Vivo Bioreactor. Trends Biotechnol 2018; 36:1011-1024. [DOI: 10.1016/j.tibtech.2018.05.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 05/25/2018] [Accepted: 05/29/2018] [Indexed: 02/06/2023]
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213
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Deshpande R, Kanitkar M, Kadam S, Dixit K, Chhabra H, Bellare J, Datar S, Kale VP. Matrix-entrapped cellular secretome rescues diabetes-induced EPC dysfunction and accelerates wound healing in diabetic mice. PLoS One 2018; 13:e0202510. [PMID: 30153276 PMCID: PMC6112628 DOI: 10.1371/journal.pone.0202510] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 08/03/2018] [Indexed: 11/18/2022] Open
Abstract
Cellular secretory products have infinite potential, which is only recently explored for research and therapeutic applications. The present study elaborated on the formation of a unique matrix-entrapped cellular secretome (MCS), a hydrogel-like secretome produced by bone marrow-derived mononuclear cells when cultured on a three-dimensional electrospun nanofiber matrix under specific conditions. These culture conditions support the growth of a mixed population predominantly comprising of endothelial precursor cells (EPCs), along with mesenchymal stromal cells and pericytes. Interestingly, such secretome is not formed in a pure culture of EPCs on the similarly formulated matrix, suggesting that a heterotypic cell-cell interaction is essential for the formation of MCS. In addition, the specific composition of the matrix was found to be a critical necessity for the formation of MCS. Furthermore, the application of the MCS as a substrate promotes the growth of EPCs in culture. It also rescues the diabetes-induced EPC dysfunction as assessed based on the parameters, such as viability, proliferation, colony formation, cellular adhesion, chemotactic migration, and tubule formation. MCS augments the levels of eNOS-specific mRNA (Nos3) and also promotes the restoration of the SDF1/CXCR4 axis in diabetic EPCs. Notably, a topical application of MCS on diabetic wounds leads to an accelerated wound closure. Thus, the current data showed that MCS forms an excellent cell-free biomaterial in the treatment of diabetic wounds and non-healing ulcers.
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Affiliation(s)
- Rucha Deshpande
- National Centre for Cell Science, NCCS Complex, University of Pune Campus, Ganeshkhind, Pune, Maharashtra, India
- Prof. Ramkrishna More Arts, Commerce and Science College, Akurdi, Pune, Maharashtra India
| | - Meghana Kanitkar
- National Centre for Cell Science, NCCS Complex, University of Pune Campus, Ganeshkhind, Pune, Maharashtra, India
| | - Sheetal Kadam
- National Centre for Cell Science, NCCS Complex, University of Pune Campus, Ganeshkhind, Pune, Maharashtra, India
| | - Kadambari Dixit
- National Centre for Cell Science, NCCS Complex, University of Pune Campus, Ganeshkhind, Pune, Maharashtra, India
| | - Hemlata Chhabra
- Department of Chemical Engineering, Indian Institute of Technology-Bombay, Powai, Mumbai, Maharashtra, India
| | - Jayesh Bellare
- Department of Chemical Engineering, Indian Institute of Technology-Bombay, Powai, Mumbai, Maharashtra, India
| | - Savita Datar
- Prof. Ramkrishna More Arts, Commerce and Science College, Akurdi, Pune, Maharashtra India
- Department of Zoology, S.P.College, Pune, Maharashtra India
| | - Vaijayanti P. Kale
- National Centre for Cell Science, NCCS Complex, University of Pune Campus, Ganeshkhind, Pune, Maharashtra, India
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214
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Li Z, Zhou F, Li Z, Lin S, Chen L, Liu L, Chen Y. Hydrogel Cross-Linked with Dynamic Covalent Bonding and Micellization for Promoting Burn Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2018; 10:25194-25202. [PMID: 29986126 DOI: 10.1021/acsami.8b08165] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A novel hydrogel (HA-az-F127 hydrogel) formed by reacting hydrazide modified hyaluronic acid (HAAD) and benzaldehyde terminated F127 triblock copolymers (BAF127) was developed in this work. The hydrogel with dynamic covalent chemically and micellar physically double-cross-linked networks exhibited rapid gelation and shear thinning properties. Besides, the hydrogel possessed functions, such as adaptable mechanical strength, self-healability, liquid-absorption, or drainage and tissue adhesion, which are important for wound treatment. Studies on cytocompatibility and histopathology by 3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyl tetrazolium bromide tests, live/death staining, and cell counting kit 8 assay demonstrated excellent biocompatibility of the hydrogels. After it was applied in the deep partial-thickness burn model, the hydrogel contributed effectively in promoting burn wound repair. Therefore, the HA-az-F127 hydrogel combined multiple functions in one system, demonstrating potential application in promoting burn wound healing.
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Affiliation(s)
- Ziyi Li
- School of Materials Science and Engineering, Center of Functional Biomaterials, Key Laboratory of Polymeric Composite Materials and Functional Materials of Ministry of Education, GD Research Center for Functional Biomaterials Engineering and Technology , Sun Yat-sen University , Guangzhou 510275 , China
| | - Fei Zhou
- Department of Burns , First Affiliated Hospital of Sun Yat-sen University , Guangzhou 510080 , China
| | - Zhiyong Li
- School of Materials Science and Engineering, Center of Functional Biomaterials, Key Laboratory of Polymeric Composite Materials and Functional Materials of Ministry of Education, GD Research Center for Functional Biomaterials Engineering and Technology , Sun Yat-sen University , Guangzhou 510275 , China
| | - Siyu Lin
- School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , China
| | - Lei Chen
- Department of Burns , First Affiliated Hospital of Sun Yat-sen University , Guangzhou 510080 , China
| | - Lixin Liu
- School of Materials Science and Engineering, Center of Functional Biomaterials, Key Laboratory of Polymeric Composite Materials and Functional Materials of Ministry of Education, GD Research Center for Functional Biomaterials Engineering and Technology , Sun Yat-sen University , Guangzhou 510275 , China
| | - Yongming Chen
- School of Materials Science and Engineering, Center of Functional Biomaterials, Key Laboratory of Polymeric Composite Materials and Functional Materials of Ministry of Education, GD Research Center for Functional Biomaterials Engineering and Technology , Sun Yat-sen University , Guangzhou 510275 , China
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Brassolatti P, Kido HW, Bossini PS, Gabbai-Armelin PR, Otterço AN, Almeida-Lopes L, Zanardi LM, Napolitano MA, de Avó LRDS, Forato LA, Araújo-Moreira FM, Parizotto NA. Bacterial cellulose membrane used as biological dressings on third-degree burns in rats. Biomed Mater Eng 2018; 29:29-42. [PMID: 29254071 DOI: 10.3233/bme-171710] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Burn injuries represent a high risk of morbidity and mortality. The wound healing process is complex and requires the participation of different types of cells. Therefore, new biomaterials, which innovate the wound healing process, are being investigated. OBJECTIVE The aim of this study was to investigate the use of bacterial cellulose both in its pure state and enriched with lidocaine in full-thickness burns in rats. METHODS Thirty rats (Wistar) (260 ± 20 gramas) divided into control group (CG), bacterial cellulose membrane group (MG) and bacterial cellulose membrane enriched with lidocaine group (MLG) were used. The burns were induced using a 150°C heated soldering iron, held on the animal neck for 10 seconds. The biomaterial was applied immediately after injury and skin samples were collected on the tenth day of the treatment. The level of significance of p⩽0.05 was used for the conclusion of the statistical analysis. RESULTS The groups treated with the biomaterials, a histological pattern compatible with a more advanced repair stage showing skin appendages, mild inflammatory infiltrate, better collagen fiber organization and mild immunostaining COX-2 and MMP-9 was observed, when compared to the control group that did not receive any type of treatment. CONCLUSION Thus, was concluded that the bacterial cellulose-based biomaterial both in its pure state and enriched with lidocaine optimizing the full-thickness burn wound healing in rats.
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Affiliation(s)
- Patricia Brassolatti
- Department of Physiotherapy, Post-Graduate Program in Biotechnology, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil. E-mail:
| | - Hueliton Wilian Kido
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, SP, Brazil
| | - Paulo Sérgio Bossini
- Research and Education Center for Photo Therapy in Health Science (NUPEN), DMC Equipment Import and Export-Co. Ltda, São Carlos, SP, Brazil
| | - Paulo R Gabbai-Armelin
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, SP, Brazil
| | - Albaiza Nicoletti Otterço
- Department of Physiotherapy, Post-Graduate Program in Biotechnology, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil. E-mail:
| | - Luciana Almeida-Lopes
- Research and Education Center for Photo Therapy in Health Science (NUPEN), DMC Equipment Import and Export-Co. Ltda, São Carlos, SP, Brazil
| | - Lisinéia Maria Zanardi
- Research and Education Center for Photo Therapy in Health Science (NUPEN), DMC Equipment Import and Export-Co. Ltda, São Carlos, SP, Brazil
| | - Marcos Aurélio Napolitano
- Research and Education Center for Photo Therapy in Health Science (NUPEN), DMC Equipment Import and Export-Co. Ltda, São Carlos, SP, Brazil
| | | | | | - Fernando M Araújo-Moreira
- Department of Physics, Post-Graduate Program of Biotechnology, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Nivaldo Antonio Parizotto
- Department of Physiotherapy, Post-Graduate Program in Biotechnology, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil. E-mail:
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216
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Ritz U, Eberhardt M, Klein A, Frank P, Götz H, Hofmann A, Rommens PM, Jonas U. Photocrosslinked Dextran-Based Hydrogels as Carrier System for the Cells and Cytokines Induce Bone Regeneration in Critical Size Defects in Mice. Gels 2018; 4:E63. [PMID: 30674839 PMCID: PMC6209263 DOI: 10.3390/gels4030063] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 06/30/2018] [Accepted: 07/03/2018] [Indexed: 01/07/2023] Open
Abstract
Modified biomaterials have for years been the focus of research into establishing new bone substitutes. In our preceding in vitro study employing different cell cultures, we developed chemically and mechanically characterized hydrogels based on photocrosslinkable dextran derivatives and demonstrated their cytocompatibility and their beneficial effects on the proliferation of osteoblasts and endothelial cells. In the present in vivo study, we investigate photocrosslinked dextran-based hydrogels in critical size defects in mice to evaluate their potential as carrier systems for cells or for a specific angiogenesis enhancing cytokine to induce bone formation. We could demonstrate that, with optimized laboratory practice, the endotoxin content of hydrogels could be reduced below the Food and Drug Administration (FDA)-limit. Dextran-based hydrogels were either loaded with a monoculture of endothelial cells or a co-culture of human osteoblasts with endothelial cells, or with stromal-derived-growth factor (SDF-1). Scaffolds were implanted into a calvarial defect of critical size in mice and their impact on bone formation was assessed by µCt-analyses, histology and immunohistology. Our study demonstrates that promotion of angiogenesis either by SDF-1 or a monoculture of endothelial cells induces bone regeneration at a physiological level. These in vivo results indicate the potential of dextran-based hydrogel composites in bone regeneration to deliver cells and cytokines to the defect site.
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Affiliation(s)
- Ulrike Ritz
- Biomatics Group, Department of Orthopaedics and Traumatology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany.
| | - Marc Eberhardt
- Biomatics Group, Department of Orthopaedics and Traumatology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany.
| | - Anja Klein
- Biomatics Group, Department of Orthopaedics and Traumatology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany.
| | - Petra Frank
- Macromolecular Chemistry, Department Chemistry Biology, University of Siegen, 57076 Siegen, Germany.
| | - Hermann Götz
- Biomatics Group, Platform Biomaterials, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany.
| | - Alexander Hofmann
- Biomatics Group, Department of Orthopaedics and Traumatology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany.
| | - Pol Maria Rommens
- Biomatics Group, Department of Orthopaedics and Traumatology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany.
| | - Ulrich Jonas
- Macromolecular Chemistry, Department Chemistry Biology, University of Siegen, 57076 Siegen, Germany.
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217
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Ali A, Ahmed S. Recent Advances in Edible Polymer Based Hydrogels as a Sustainable Alternative to Conventional Polymers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6940-6967. [PMID: 29878765 DOI: 10.1021/acs.jafc.8b01052] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The over increasing demand of eco-friendly materials to counter various problems, such as environmental issues, economics, sustainability, biodegradability, and biocompatibility, open up new fields of research highly focusing on nature-based products. Edible polymer based materials mainly consisting of polysaccharides, proteins, and lipids could be a prospective contender to handle such problems. Hydrogels based on edible polymer offer many valuable properties compared to their synthetic counterparts. Edible polymers can contribute to the reduction of environmental contamination, advance recyclability, provide sustainability, and thereby increase its applicability along with providing environmentally benign products. This review is highly emphasizing on toward the development of hydrogels from edible polymer, their classification, properties, chemical modification, and their potential applications. The application of edible polymer hydrogels covers many areas including the food industry, agricultural applications, drug delivery to tissue engineering in the biomedical field and provide more safe and attractive products in the pharmaceutical, agricultural, and environmental fields, etc.
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Affiliation(s)
- Akbar Ali
- Department of Chemistry , Jamia Millia Islamia , New Delhi , 110025 , India
| | - Shakeel Ahmed
- Department of Chemistry , Government Degree College Mendhar , Jammu , Jammu and Kashmir , 185211 , India
- Higher Education Department , Government of Jammu and Kashmir , Jammu , 180001 , India
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218
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Sun G, Shen YI, Harmon JW. Engineering Pro-Regenerative Hydrogels for Scarless Wound Healing. Adv Healthc Mater 2018; 7:e1800016. [PMID: 29663707 DOI: 10.1002/adhm.201800016] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 02/17/2018] [Indexed: 12/21/2022]
Abstract
Skin and skin appendages protect the body from harmful environment and prevent internal organs from dehydration. Superficial epidermal wounds usually heal without scarring, however, deep dermal wound healing commonly ends up with nonfunctioning scar formation with substantial loss of skin appendage. Wound healing is one of the most complex dynamic biological processes, during which a cascade of biomolecules combine with stem cell influx and matrix synthesis and synergistically contribute to wound healing at all levels. Although many approaches have been investigated to restore complete skin, the clinically effective therapy is still unavailable and the regeneration of perfect skin still remains a significant challenge. The complete mechanism behind scarless skin regeneration still requires further investigation. Fortunately, recent advancement in regenerative medicine empowers us more than ever to restore tissue in a regenerative manner. Many studies have elucidated and reviewed the contribution of stem cells and growth factors to scarless wound healing. This article focuses on recent advances in scarless wound healing, especially strategies to engineer pro-regenerative scaffolds to restore damaged skin in a regenerative manner.
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Affiliation(s)
- Guoming Sun
- Sunogel Biotechnologies Inc.; 9 W Ridgely Road Ste 270 Lutherville Timonium MD 21093 USA
| | - Yu-I Shen
- Sunogel Biotechnologies Inc.; 9 W Ridgely Road Ste 270 Lutherville Timonium MD 21093 USA
| | - John W. Harmon
- Department of Surgery and the Hendrix Burn Lab; Johns Hopkins University School of Medicine; Baltimore MD 21224 USA
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219
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Sousa MP, Neto AI, Correia TR, Miguel SP, Matsusaki M, Correia IJ, Mano JF. Bioinspired multilayer membranes as potential adhesive patches for skin wound healing. Biomater Sci 2018; 6:1962-1975. [PMID: 29850674 PMCID: PMC6420149 DOI: 10.1039/c8bm00319j] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Bioinspired and adhesive multilayer membranes are produced using the layer-by-layer (LbL) assembly of chitosan (CHT), alginate (ALG) and hyaluronic acid modified with dopamine (HA-DN). Freestanding multilayer membranes without DN are also produced as a control. The success of the synthesis of HA-DN was confirmed using UV-visible spectroscopy. Scanning electron microscopy images indicate that the surface of the DN-containing membranes is more porous than the control ones; they also present a higher average thickness value for the same number of CHT/ALG/CHT/HA(-DN) tetralayers (n = 100). Also, water uptake, mechanical strength and adhesion are enhanced with the introduction of DN moieties along the nano-layers. Besides, human dermal fibroblast viability, enhanced adhesion and proliferation were confirmed by immunofluorescence assays and by measuring both the metabolic activity and DNA content. Moreover, in vivo assays with such kinds of DN-containing multilayer membranes were performed; the application of these membranes in the treatment of dermal wounds induced in Wistar rats results in the highest decrease of inflammation of rat skin, compared with the control conditions. Overall, this investigation suggests that these mussel-inspired freestanding multilayer membranes may enhance either their mechanical performance or cellular adhesion and proliferation, leading to an improved wound healing process, being a promising material to restore the structural and functional properties of wounded skin.
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Affiliation(s)
- Maria P Sousa
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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220
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Le Thi P, Lee Y, Hoang Thi TT, Park KM, Park KD. Catechol-rich gelatin hydrogels in situ hybridizations with silver nanoparticle for enhanced antibacterial activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:52-60. [PMID: 30184778 DOI: 10.1016/j.msec.2018.06.037] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 04/18/2018] [Accepted: 06/16/2018] [Indexed: 01/07/2023]
Abstract
Recently, the interest in antimicrobial hydrogels with impregnated antibacterial agents has significantly increased because of their ability to combat infection in biomedical applications, including wound management, tissue engineering, and biomaterial surface coating. Among these antibacterial reagents, silver nanoparticles (AgNP) show good antibacterial activity against both gram-negative and gram-positive bacteria, including highly multi-resistant strains. However, the entrapment of AgNP within a hydrogel matrix is often associated with toxicity issues because of the use of chemical reductants (e.g., commonly sodium borohydride), burst leaching, or unwanted agglomeration of AgNP in the absence of surfactants or stabilizers. In this study, we present catechol-rich gelatin hydrogels with in situ hybridization of AgNP for enhanced antimicrobial activities. AgNP were formed through a redox reaction between silver ions and the catechol moieties of a gelatin derivative polymer, without the addition of any chemical reductants. The AgNP with an average size of 20 nm were entrapped within hydrogel matrices and showed sustained release from the hydrogel matrix (8.7% for 14 days). The resulting hydrogels could kill both gram-negative and gram-positive bacteria, depending on the amount of AgNP released from the hydrogels and did not have a significant influence on mammalian cell viability. We believe that our catechol-rich hydrogels in situ hybridizations with AgNP have great potential for biomedical applications, such as wound management and surface coating, because of their excellent antibacterial activities and biocompatibility.
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Affiliation(s)
- Phuong Le Thi
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea
| | - Yunki Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea
| | - Thai Thanh Hoang Thi
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea
| | - Kyung Min Park
- Department of Bioengineering and Nano-bioengineering, Incheon National University, Incheon 22012, Republic of Korea
| | - Ki Dong Park
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea.
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221
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Piaggesi A, Låuchli S, Bassetto F, Biedermann T, Marques A, Najafi B, Palla I, Scarpa C, Seimetz D, Triulzi I, Turchetti G, Vaggelas A. Advanced therapies in wound management: cell and tissue based therapies, physical and bio-physical therapies smart and IT based technologies. J Wound Care 2018; 27:S1-S137. [DOI: 10.12968/jowc.2018.27.sup6a.s1] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Alberto Piaggesi
- Prof, Director, EWMA Scientific Recorder (Editor), Diabetic Foot Section of the Pisa University Hospital, Department of Endocrinology and Metabolism, University of Pisa, Lungarno Pacinotti 43, 56126 Pisa, Italy
| | - Severin Låuchli
- Chief of Dermatosurgery and Woundcare, EWMA Immediate Past President (Co-editor), Department of Dermatology, University Hospital, Zurich, Råmistrasse 100, 8091 Zärich, Schwitzerland
| | - Franco Bassetto
- Prof, Head of Department, Clinic of Plastic and Reconstructive Surgery, University of Padova, Via Giustiniani, 35100 Padova
| | - Thomas Biedermann
- Tissue Biology Research Unit, Department of Surgery, University Children's Hospital Zurich, August Forel-Strasse 7, 8008 Zürich, Switzerland
| | - Alexandra Marques
- University of Minho, 3B's Research Group in Biomaterials, Biodegradables and Biomimetics, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
| | - Bijan Najafi
- Professor of Surgery, Director of Clinical Research, Division of Vascular Surgery and Endovascular Therapy, Director of Interdisciplinary Consortium on Advanced Motion Performance (iCAMP), Michael E. DeBakey Department of Surgery, Baylor College of Medicine, One Baylor Plaza, MS: BCM390, Houston, TX 77030-3411, US
| | - Ilaria Palla
- Institute of Management, Sant'Anna School of Advanced Studies, Piazza Martiri della Libertà, 33, 56127 Pisa, Italy
| | - Carlotta Scarpa
- Clinic of Plastic and Reconstructive Surgery, University of Padova, Via Giustiniani, 35100 Padova
| | - Diane Seimetz
- Founding Partner, Biopharma Excellence, c/o Munich Technology Center, Agnes-Pockels-Bogen 1, 80992 Munich, Germany
| | - Isotta Triulzi
- Institute of Management, Sant'Anna School of Advanced Studies, Piazza Martiri della Libertà, 33, 56127 Pisa, Italy
| | - Giuseppe Turchetti
- Fulbright Scholar, Institute of Management, Sant'Anna School of Advanced Studies, Piazza Martiri della Libertà, 33, 56127 Pisa, Italy
| | - Annegret Vaggelas
- Consultant, Biopharma Excellence, c/o Munich Technology Center, Agnes-Pockels-Bogen 1, 80992 Munich, Germany
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222
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Lee Y, Son JY, Kang JI, Park KM, Park KD. Hydrogen Peroxide-Releasing Hydrogels for Enhanced Endothelial Cell Activities and Neovascularization. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18372-18379. [PMID: 29722526 DOI: 10.1021/acsami.8b04522] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Reactive oxygen species (ROS) have been implicated as a critical modulator for various therapeutic applications such as treatment of vascular disorders, wound healing, and cancer treatment. Specifically, growing evidence has recently demonstrated that transient or low levels of hydrogen peroxide (H2O2) facilitates tissue regeneration and wound repair through acute oxidative stress that can evaluate intracellular ROS levels in cells or tissues. Herein, we report a gelatin-based H2O2-releasing hydrogel formed by dual enzyme-mediated reaction using horseradish peroxidase and glucose oxidase (GO x). The release behavior of H2O2 from the hydrogel matrices can be precisely controlled by varying the GO x concentrations. We demonstrate that H2O2-releasing hydrogels with the optimal condition increase transient upregulation of intracellular ROS levels in the endothelial cells (ECs), enhance proliferative activities of ECs in vitro, and facilitate neovascularization in ovo. We suggest that our H2O2-releasing hydrogels hold great potential as an injectable and dynamic matrix for the treatment of vascular disorders as well as in tissue regenerative medicine.
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Affiliation(s)
- Yunki Lee
- Department of Molecular Science and Technology , Ajou University , 5 Woncheon , Yeongtong, Suwon 16499 , Republic of Korea
| | - Joo Young Son
- Department of Molecular Science and Technology , Ajou University , 5 Woncheon , Yeongtong, Suwon 16499 , Republic of Korea
| | - Jeon Il Kang
- Department of Bioengineering and Nano-bioengineering, College of Life Sciences and Bioengineering , Incheon National University , 119 Academy-ro , Yeonsu-gu, Incheon 22012 , Republic of Korea
| | - Kyung Min Park
- Department of Bioengineering and Nano-bioengineering, College of Life Sciences and Bioengineering , Incheon National University , 119 Academy-ro , Yeonsu-gu, Incheon 22012 , Republic of Korea
| | - Ki Dong Park
- Department of Molecular Science and Technology , Ajou University , 5 Woncheon , Yeongtong, Suwon 16499 , Republic of Korea
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223
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Kaplani K, Koutsi S, Armenis V, Skondra FG, Karantzelis N, Champeris Tsaniras S, Taraviras S. Wound healing related agents: Ongoing research and perspectives. Adv Drug Deliv Rev 2018; 129:242-253. [PMID: 29501699 DOI: 10.1016/j.addr.2018.02.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 01/28/2018] [Accepted: 02/26/2018] [Indexed: 02/07/2023]
Abstract
Wound healing response plays a central part in chronic inflammation, affecting millions of people worldwide. It is a dynamic process that can lead to fibrosis, if tissue damage is irreversible and wound resolution is not attained. It is clear that there is a tight interconnection among wound healing, fibrosis and a variety of chronic disease conditions, demonstrating the heterogeneity of this pathology. Based on our further understanding of the cellular and molecular mechanisms underpinning tissue repair, new therapeutic approaches have recently been developed that target different aspects of the wound healing process and fibrosis. Nevertheless, several issues still need to be taken into consideration when designing modern wound healing drug delivery formulations. In this review, we highlight novel pharmacological agents that hold promise for targeting wound repair and fibrosis. We also focus on drug-delivery systems that may enhance current and future therapies.
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Affiliation(s)
- Konstantina Kaplani
- Division of Stem Cells and Regenerative Medicine, Biomedical Postgraduate Programme, School of Medicine, University of Patras, Patras 26504, Greece; Department of Physiology, School of Medicine, University of Patras, Patras 26504, Greece
| | - Stamatina Koutsi
- Division of Stem Cells and Regenerative Medicine, Biomedical Postgraduate Programme, School of Medicine, University of Patras, Patras 26504, Greece; Department of Physiology, School of Medicine, University of Patras, Patras 26504, Greece
| | - Vasileios Armenis
- Division of Stem Cells and Regenerative Medicine, Biomedical Postgraduate Programme, School of Medicine, University of Patras, Patras 26504, Greece
| | - Foteini G Skondra
- Division of Stem Cells and Regenerative Medicine, Biomedical Postgraduate Programme, School of Medicine, University of Patras, Patras 26504, Greece
| | - Nickolas Karantzelis
- Department of Physiology, School of Medicine, University of Patras, Patras 26504, Greece
| | | | - Stavros Taraviras
- Division of Stem Cells and Regenerative Medicine, Biomedical Postgraduate Programme, School of Medicine, University of Patras, Patras 26504, Greece; Department of Physiology, School of Medicine, University of Patras, Patras 26504, Greece.
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224
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Rajendran NK, Kumar SSD, Houreld NN, Abrahamse H. A review on nanoparticle based treatment for wound healing. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.01.009] [Citation(s) in RCA: 169] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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225
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Chantre CO, Campbell PH, Golecki HM, Buganza AT, Capulli AK, Deravi LF, Dauth S, Sheehy SP, Paten JA, Gledhill K, Doucet YS, Abaci HE, Ahn S, Pope BD, Ruberti JW, Hoerstrup SP, Christiano AM, Parker KK. Production-scale fibronectin nanofibers promote wound closure and tissue repair in a dermal mouse model. Biomaterials 2018; 166:96-108. [PMID: 29549768 DOI: 10.1016/j.biomaterials.2018.03.006] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 03/01/2018] [Accepted: 03/03/2018] [Indexed: 11/29/2022]
Abstract
Wounds in the fetus can heal without scarring. Consequently, biomaterials that attempt to recapitulate the biophysical and biochemical properties of fetal skin have emerged as promising pro-regenerative strategies. The extracellular matrix (ECM) protein fibronectin (Fn) in particular is believed to play a crucial role in directing this regenerative phenotype. Accordingly, Fn has been implicated in numerous wound healing studies, yet remains untested in its fibrillar conformation as found in fetal skin. Here, we show that high extensional (∼1.2 ×105 s-1) and shear (∼3 ×105 s-1) strain rates in rotary jet spinning (RJS) can drive high throughput Fn fibrillogenesis (∼10 mL/min), thus producing nanofiber scaffolds that are used to effectively enhance wound healing. When tested on a full-thickness wound mouse model, Fn nanofiber dressings not only accelerated wound closure, but also significantly improved tissue restoration, recovering dermal and epidermal structures as well as skin appendages and adipose tissue. Together, these results suggest that bioprotein nanofiber fabrication via RJS could set a new paradigm for enhancing wound healing and may thus find use in a variety of regenerative medicine applications.
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Affiliation(s)
- Christophe O Chantre
- Disease Biophysics Group, Wyss Institute for Biologically Inspired Engineering, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA; Institute for Regenerative Medicine, University of Zurich, ZH, Switzerland
| | - Patrick H Campbell
- Disease Biophysics Group, Wyss Institute for Biologically Inspired Engineering, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Holly M Golecki
- Disease Biophysics Group, Wyss Institute for Biologically Inspired Engineering, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Adrian T Buganza
- Disease Biophysics Group, Wyss Institute for Biologically Inspired Engineering, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA; Department of Mechanical Engineering, Purdue University, West Lafayette, IL, USA
| | - Andrew K Capulli
- Disease Biophysics Group, Wyss Institute for Biologically Inspired Engineering, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Leila F Deravi
- Disease Biophysics Group, Wyss Institute for Biologically Inspired Engineering, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA; Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, USA
| | - Stephanie Dauth
- Disease Biophysics Group, Wyss Institute for Biologically Inspired Engineering, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Sean P Sheehy
- Disease Biophysics Group, Wyss Institute for Biologically Inspired Engineering, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Jeffrey A Paten
- Department of Bioengineering, Northeastern University, Boston, MA, UK
| | - Karl Gledhill
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Yanne S Doucet
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Hasan E Abaci
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Seungkuk Ahn
- Disease Biophysics Group, Wyss Institute for Biologically Inspired Engineering, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Benjamin D Pope
- Disease Biophysics Group, Wyss Institute for Biologically Inspired Engineering, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA; Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Jeffrey W Ruberti
- Department of Bioengineering, Northeastern University, Boston, MA, UK
| | - Simon P Hoerstrup
- Institute for Regenerative Medicine, University of Zurich, ZH, Switzerland
| | | | - Kevin Kit Parker
- Disease Biophysics Group, Wyss Institute for Biologically Inspired Engineering, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
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226
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Sheikholeslam M, Wright MEE, Jeschke MG, Amini-Nik S. Biomaterials for Skin Substitutes. Adv Healthc Mater 2018; 7:10.1002/adhm.201700897. [PMID: 29271580 PMCID: PMC7863571 DOI: 10.1002/adhm.201700897] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/13/2017] [Indexed: 12/13/2022]
Abstract
Patients with extensive burns rely on the use of tissue engineered skin due to a lack of sufficient donor tissue, but it is a challenge to identify reliable and economical scaffold materials and donor cell sources for the generation of a functional skin substitute. The current review attempts to evaluate the performance of the wide range of biomaterials available for generating skin substitutes, including both natural biopolymers and synthetic polymers, in terms of tissue response and potential for use in the operating room. Natural biopolymers display an improved cell response, while synthetic polymers provide better control over chemical composition and mechanical properties. It is suggested that not one material meets all the requirements for a skin substitute. Rather, a composite scaffold fabricated from both natural and synthetic biomaterials may allow for the generation of skin substitutes that meet all clinical requirements including a tailored wound size and type, the degree of burn, the patient age, and the available preparation technique. This review aims to be a valuable directory for researchers in the field to find the optimal material or combination of materials based on their specific application.
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Affiliation(s)
- Mohammadali Sheikholeslam
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, ON, Canada
| | - Meghan E E Wright
- Institute of Biomaterials & Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Marc G Jeschke
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Saeid Amini-Nik
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
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227
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Saghazadeh S, Rinoldi C, Schot M, Kashaf SS, Sharifi F, Jalilian E, Nuutila K, Giatsidis G, Mostafalu P, Derakhshandeh H, Yue K, Swieszkowski W, Memic A, Tamayol A, Khademhosseini A. Drug delivery systems and materials for wound healing applications. Adv Drug Deliv Rev 2018; 127:138-166. [PMID: 29626550 PMCID: PMC6003879 DOI: 10.1016/j.addr.2018.04.008] [Citation(s) in RCA: 371] [Impact Index Per Article: 61.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/01/2018] [Accepted: 04/03/2018] [Indexed: 01/22/2023]
Abstract
Chronic, non-healing wounds place a significant burden on patients and healthcare systems, resulting in impaired mobility, limb amputation, or even death. Chronic wounds result from a disruption in the highly orchestrated cascade of events involved in wound closure. Significant advances in our understanding of the pathophysiology of chronic wounds have resulted in the development of drugs designed to target different aspects of the impaired processes. However, the hostility of the wound environment rich in degradative enzymes and its elevated pH, combined with differences in the time scales of different physiological processes involved in tissue regeneration require the use of effective drug delivery systems. In this review, we will first discuss the pathophysiology of chronic wounds and then the materials used for engineering drug delivery systems. Different passive and active drug delivery systems used in wound care will be reviewed. In addition, the architecture of the delivery platform and its ability to modulate drug delivery are discussed. Emerging technologies and the opportunities for engineering more effective wound care devices are also highlighted.
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Affiliation(s)
- Saghi Saghazadeh
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
| | - Chiara Rinoldi
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology. Warsaw 02-507, Poland
| | - Maik Schot
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- MIRA Institute of Biomedical Technology and Technical Medicine, Department of Developmental BioEngineering, University of Twente, Enschede, The Netherlands
| | - Sara Saheb Kashaf
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- The University of Chicago Medical Scientist Training Program, Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Fatemeh Sharifi
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran
| | - Elmira Jalilian
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
| | - Kristo Nuutila
- Division of Plastic Surgery, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Giorgio Giatsidis
- Division of Plastic Surgery, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Pooria Mostafalu
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
| | - Hossein Derakhshandeh
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE, 68508, USA
| | - Kan Yue
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
| | - Wojciech Swieszkowski
- Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology. Warsaw 02-507, Poland
| | - Adnan Memic
- Center of Nanotechnology, Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia
| | - Ali Tamayol
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE, 68508, USA
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- Center of Nanotechnology, Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia
- Department of Chemical and Biomolecular Engineering, Department of Bioengineering, Department of Radiology, California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, 90095, USA
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228
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Bakhshandeh B, Zarrintaj P, Oftadeh MO, Keramati F, Fouladiha H, Sohrabi-Jahromi S, Ziraksaz Z. Tissue engineering; strategies, tissues, and biomaterials. Biotechnol Genet Eng Rev 2018; 33:144-172. [PMID: 29385962 DOI: 10.1080/02648725.2018.1430464] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Current tissue regenerative strategies rely mainly on tissue repair by transplantation of the synthetic/natural implants. However, limitations of the existing strategies have increased the demand for tissue engineering approaches. Appropriate cell source, effective cell modification, and proper supportive matrices are three bases of tissue engineering. Selection of appropriate methods for cell stimulation, scaffold synthesis, and tissue transplantation play a definitive role in successful tissue engineering. Although the variety of the players are available, but proper combination and functional synergism determine the practical efficacy. Hence, in this review, a comprehensive view of tissue engineering and its different aspects are investigated.
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Affiliation(s)
- Behnaz Bakhshandeh
- a Department of Biotechnology, College of Science , University of Tehran , Tehran , Iran
| | - Payam Zarrintaj
- b School of Chemical Engineering, College of Engineering , University of Tehran , Tehran , Iran
| | - Mohammad Omid Oftadeh
- a Department of Biotechnology, College of Science , University of Tehran , Tehran , Iran.,c Stem Cell Technology Research Center , Tehran , Iran
| | - Farid Keramati
- a Department of Biotechnology, College of Science , University of Tehran , Tehran , Iran
| | - Hamideh Fouladiha
- a Department of Biotechnology, College of Science , University of Tehran , Tehran , Iran
| | - Salma Sohrabi-Jahromi
- d Gottingen Center for Molecular Biosciences , Georg August University , Göttingen , Germany
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229
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Hayati F, Ghamsari SM, Dehghan MM, Oryan A. Effects of carbomer 940 hydrogel on burn wounds: an in vitro and in vivo study. J DERMATOL TREAT 2018; 29:593-599. [DOI: 10.1080/09546634.2018.1426823] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Farzad Hayati
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Seyed Mehdi Ghamsari
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mohammad Mehdi Dehghan
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
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230
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Pereira RF, Barrias CC, Bártolo PJ, Granja PL. Cell-instructive pectin hydrogels crosslinked via thiol-norbornene photo-click chemistry for skin tissue engineering. Acta Biomater 2018; 66:282-293. [PMID: 29128530 DOI: 10.1016/j.actbio.2017.11.016] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Revised: 10/30/2017] [Accepted: 11/07/2017] [Indexed: 12/31/2022]
Abstract
Cell-instructive hydrogels are attractive for skin repair and regeneration, serving as interactive matrices to promote cell adhesion, cell-driven remodeling and de novo deposition of extracellular matrix components. This paper describes the synthesis and photocrosslinking of cell-instructive pectin hydrogels using cell-degradable peptide crosslinkers and integrin-specific adhesive ligands. Protease-degradable hydrogels obtained by photoinitiated thiol-norbornene click chemistry are rapidly formed in the presence of dermal fibroblasts, exhibit tunable properties and are capable of modulating the behavior of embedded cells, including the cell spreading, hydrogel contraction and secretion of matrix metalloproteases. Keratinocytes seeded on top of fibroblast-loaded hydrogels are able to adhere and form a compact and dense layer of epidermis, mimicking the architecture of the native skin. Thiol-ene photocrosslinkable pectin hydrogels support the in vitro formation of full-thickness skin and are thus a highly promising platform for skin tissue engineering applications, including wound healing and in vitro testing models. STATEMENT OF SIGNIFICANCE Photopolymerizable hydrogels are attractive for skin applications due to their unique spatiotemporal control over the hydrogel formation. This study reports the design of a promising photo-clickable pectin hydrogel which biophysical and biochemical properties can be independently tailored to control cell behavior. A fast method for the norbornene-functionalization of pectin was developed and hydrogels fabricated through UV photoinitiated thiol-norbornene chemistry. This one-pot click reaction was performed in the presence of cells using cell-adhesive and matrix metalloproteinase-sensitive peptides, yielding hydrogels that support extensive cell spreading. Keratinocytes seeded on top of the fibroblast-loaded hydrogel formed a compact epidermis with morphological resemblance to human skin. This work presents a new protease-degradable hydrogel that supports in vitro skin formation with potential for skin tissue engineering.
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231
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O'Connor NA, Jitianu M, Nunez G, Picard Q, Wong M, Akpatsu D, Negrin A, Gharbaran R, Lugo D, Shaker S, Jitianu A, Redenti S. Dextran hydrogels by crosslinking with amino acid diamines and their viscoelastic properties. Int J Biol Macromol 2018; 111:370-378. [PMID: 29325744 DOI: 10.1016/j.ijbiomac.2018.01.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 12/08/2017] [Accepted: 01/08/2018] [Indexed: 12/13/2022]
Abstract
Amine functionalized polysaccharide hydrogels such as those based on chitosan are widely examined as biomaterials. Here we set out to develop a facile procedure for developing such hydrogels by crosslinking dextran with amino acid diamines. The dextran-amino acid gels were formed by the addition of the amino acid diamines to a dextran and epichlorohydrin solution once it became homogeneous. This was demonstrated with three amino acid diamines, lysine, lysine methyl ester, and cystine dimethyl ester. Hydrogel networks with albumin entrapped were also demonstrated. These hydrogels were characterized by FTIR, SEM, rotational rheometry, swelling studies and cell biocompatibility analysis. These hydrogels showed the unexpected pH-responsive behavior of greater swelling at more basic pH, similar to that of an anionic hydrogel. This is uncharacteristic for amine functionalized gels as they typically exhibit cationic hydrogel behavior. All hydrogels showed similar biocompatibility to that of dextran crosslinked without amino acids.
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Affiliation(s)
- Naphtali A O'Connor
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468, United States; Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016, United States; Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York, NY 10016, United States.
| | - Mihaela Jitianu
- Department of Chemistry, William Paterson University, 300 Pompton Rd, Wayne, NJ 07470, United States
| | - Greisly Nunez
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468, United States
| | - Quentin Picard
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468, United States
| | - Madeline Wong
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468, United States; Department of Biology, Lehman College of the City University of New York, Bronx, NY 10468, United States
| | - David Akpatsu
- Department of Chemistry, William Paterson University, 300 Pompton Rd, Wayne, NJ 07470, United States
| | - Adam Negrin
- Department of Biology, Lehman College of the City University of New York, Bronx, NY 10468, United States
| | - Rajendra Gharbaran
- Department of Biology, Lehman College of the City University of New York, Bronx, NY 10468, United States; Biological Sciences Department, Bronx Community College of the City University of New York, Bronx, NY 10453, United States
| | - Daniel Lugo
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468, United States
| | - Sundus Shaker
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468, United States
| | - Andrei Jitianu
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468, United States; Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016, United States; Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York, NY 10016, United States
| | - Stephen Redenti
- Department of Biology, Lehman College of the City University of New York, Bronx, NY 10468, United States; Ph.D. Program in Biology, The Graduate Center of the City University of New York, New York, NY 10016, United States; Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York, NY 10016, United States
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232
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In vivo evaluation of bacterial cellulose/acrylic acid wound dressing hydrogel containing keratinocytes and fibroblasts for burn wounds. Drug Deliv Transl Res 2018; 9:444-452. [DOI: 10.1007/s13346-017-0475-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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233
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Ter Horst B, Chouhan G, Moiemen NS, Grover LM. Advances in keratinocyte delivery in burn wound care. Adv Drug Deliv Rev 2018; 123:18-32. [PMID: 28668483 PMCID: PMC5764224 DOI: 10.1016/j.addr.2017.06.012] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 06/14/2017] [Accepted: 06/23/2017] [Indexed: 12/19/2022]
Abstract
This review gives an updated overview on keratinocyte transplantation in burn wounds concentrating on application methods and future therapeutic cell delivery options with a special interest in hydrogels and spray devices for cell delivery. To achieve faster re-epithelialisation of burn wounds, the original autologous keratinocyte culture and transplantation technique was introduced over 3 decades ago. Application types of keratinocytes transplantation have improved from cell sheets to single-cell solutions delivered with a spray system. However, further enhancement of cell culture, cell viability and function in vivo, cell carrier and cell delivery systems remain themes of interest. Hydrogels such as chitosan, alginate, fibrin and collagen are frequently used in burn wound care and have advantageous characteristics as cell carriers. Future approaches of keratinocyte transplantation involve spray devices, but optimisation of application technique and carrier type is necessary.
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Affiliation(s)
- Britt Ter Horst
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, United Kingdom; University Hospital Birmingham Foundation Trust, Burns Centre, Mindelsohn Way, B15 2TH Birmingham, United Kingdom
| | - Gurpreet Chouhan
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, United Kingdom
| | - Naiem S Moiemen
- University Hospital Birmingham Foundation Trust, Burns Centre, Mindelsohn Way, B15 2TH Birmingham, United Kingdom
| | - Liam M Grover
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, United Kingdom.
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234
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Ponrasu T, Veerasubramanian PK, Kannan R, Gopika S, Suguna L, Muthuvijayan V. Morin incorporated polysaccharide–protein (psyllium–keratin) hydrogel scaffolds accelerate diabetic wound healing in Wistar rats. RSC Adv 2018; 8:2305-2314. [PMID: 35541447 PMCID: PMC9077386 DOI: 10.1039/c7ra10334d] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 12/31/2017] [Indexed: 11/21/2022] Open
Abstract
Morin loaded polysaccharide–protein composite scaffolds enhance diabetic wound healing.
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Affiliation(s)
- Thangavel Ponrasu
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | | | - Ramya Kannan
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Selvakumar Gopika
- Department of Biochemistry
- CSIR-Central Leather Research Institute
- Council of Scientific and Industrial Research
- Chennai 600020
- India
| | - Lonchin Suguna
- Department of Biochemistry
- CSIR-Central Leather Research Institute
- Council of Scientific and Industrial Research
- Chennai 600020
- India
| | - Vignesh Muthuvijayan
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology Madras
- Chennai 600036
- India
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235
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Szafulera K, Wach RA, Olejnik AK, Rosiak JM, Ulański P. Radiation synthesis of biocompatible hydrogels of dextran methacrylate. Radiat Phys Chem Oxf Engl 1993 2018. [DOI: 10.1016/j.radphyschem.2017.01.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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236
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Free-standing hydrogel-particle composite membrane with dynamically controlled permeability. Biointerphases 2017; 12:051002. [PMID: 29212329 DOI: 10.1116/1.4996952] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The preparation and investigation of a free-standing membrane made from a composite of thermoresponsive poly(N-isopropylacrylamide) (pNIPAAm) and polystyrene nanoparticles (PS NP) with temperature-controlled permeability is reported. The method exploits the light-induced crosslinking of the photo-reactive pNIPAAm-based polymer and mechanical reinforcement of the membrane structure by the polystyrene nanoparticles. About micrometer thick layers were either directly attached to a gold surface or prepared as free-standing layers spanning over arrays of microfluidic channels with a width of about hundred microns by using template stripping. Diffusion of liquid medium, low molecular weight molecules, and large molecular weight proteins contained in blood through the composite membrane was observed with combined surface plasmon resonance (SPR) and optical waveguide spectroscopy (OWS). The swelling ratio, permeability, and nonspecific sorption to these composite membranes were investigated by SPR and OWS as a function of molecular weight of analyte, loading of PS NP in the composite film, and temperature. The authors show successful preparation of a defect-free membrane structure that acts as a thermoresponsive filter with nanoscale pores spanning over an area of several square millimeters. This membrane can be reversibly switched to block or allow the diffusion of low mass molecules to the sensor surface by temperature-triggered swelling and collapsing of the hydrogel component. Blocking of diffusion and low unspecific sorption of proteins contained in blood serum is observed. These features make this platform interesting for potential future applications in continuous monitoring biosensors for the analysis of low molecular weight drug analytes or for advanced cell-on-chip microfluidic studies.
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237
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Sun G. Pro-Regenerative Hydrogel Restores Scarless Skin during Cutaneous Wound Healing. Adv Healthc Mater 2017; 6. [PMID: 28945013 DOI: 10.1002/adhm.201700659] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/09/2017] [Indexed: 11/06/2022]
Abstract
The transformation of fibrotic healing process to regenerative one has great potential to fully restore wounded skin. The M2 macrophage phenotype promotes constructive tissue remodeling and instructs tissue repair in a regenerative manner. It is hypothesized that hydrogels that can establish robustness of endogenous cells to regulate M2 phenotype will promote constructive dermal remodeling. Toward this end, a series of dextran-based bioabsorbable hydrogels are developed and self-crosslinkable dextran-isocyanatoethyl methacrylate-ethylamine (DexIEME) is identified as the potential scaffold. The initial screening study revealed that DexIEME has superior biocompatibility in varying concentrations. Although DexIEME brings about low proinflammatory responses, it promotes M2 macrophage phenotype. Then the optimized hydrogel formulation is tested for acute skin injuries using both murine and porcine models. Preliminary data demonstrated that the innovative DexIEME hydrogel promotes complete skin regeneration with hair regrowth on pre-existing scars, while untreated scars remain intact. Preclinical studies further demonstrated that the DexIEME hydrogel regenerated perfect skin during deep porcine wound healing. Overall, the approach to investigate immune-modulated hydrogels yields pro-regenerative DexIEME hydrogel, which may lead to greater clinical success in treating deep dermal injury and attenuating scar formation.
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Affiliation(s)
- Guoming Sun
- Sunogel Biotechnologies Inc.; 9 W Ridgely Road Ste 270 Lutherville Timonium MD 21093 USA
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238
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Jang HJ, Kim YM, Yoo BY, Seo YK. Wound-healing effects of human dermal components with gelatin dressing. J Biomater Appl 2017; 32:716-724. [PMID: 29130393 DOI: 10.1177/0885328217741758] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
There have been numerous investigations regarding various types of dressings and artificial dermis of solid form, yet limited research and development on paste types, such as hydrogels with dermal powder, have ensued. In this study, we compared the in vivo wound healing effects of gelatin paste containing dermal powder to a collagen type I/chondroitin 6-sulfate (coll/chondroitin) sponge and gelatin alone, after 48 days post grafting, in a skin wound rat model. In the dermis powder/gelatin paste-treated group, wound area contraction was minimized 50%, while in the gelatin and coll/chondroitin sponge groups, the initial area contracted 83-85% and 79-85%, respectively. Histological analysis revealed the wounds treated with dermal powder/gelatin were associated with many fibroblasts, which infiltrated the wound bed, as well as thick collagen bundles that were arranged in dendritic arrays, resembling normal skin. Furthermore, in contrast to the gelatin- and coll/chondroitin sponge-treated groups, the powder/gelatin paste-treated wounds exhibited an abundance of elastic fibers (Victoria blue staining) and extensive formation of blood vessels around the dermis (CD31 staining). Therefore, the dermis powder/gelatin paste not only renders convenience to users but also has prominent wound-healing effects on full-thickness wounds.
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Affiliation(s)
- Hyun-Jun Jang
- 1 Department of Medical Biotechnology (BK21 Plus team), Dongguk University, Seoul, Republic of Korea
| | - Yu-Mi Kim
- 1 Department of Medical Biotechnology (BK21 Plus team), Dongguk University, Seoul, Republic of Korea
| | - Bo-Young Yoo
- 2 Medical & Scientific Affairs Team, CGBIO Research Center, Seoul,Republic of Korea
| | - Young-Kwon Seo
- 1 Department of Medical Biotechnology (BK21 Plus team), Dongguk University, Seoul, Republic of Korea
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239
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Alibolandi M, Mohammadi M, Taghdisi SM, Abnous K, Ramezani M. Synthesis and preparation of biodegradable hybrid dextran hydrogel incorporated with biodegradable curcumin nanomicelles for full thickness wound healing. Int J Pharm 2017; 532:466-477. [DOI: 10.1016/j.ijpharm.2017.09.042] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 09/10/2017] [Accepted: 09/16/2017] [Indexed: 10/18/2022]
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240
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Characterisation of hyaluronic acid methylcellulose hydrogels for 3D bioprinting. J Mech Behav Biomed Mater 2017; 77:389-399. [PMID: 29017117 DOI: 10.1016/j.jmbbm.2017.09.031] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/23/2017] [Accepted: 09/25/2017] [Indexed: 01/05/2023]
Abstract
Hydrogels containing hyaluronic acid (HA) and methylcellulose (MC) have shown promising results for three dimensional (3D) bioprinting applications. However, several parameters influence the applicability bioprinting and there is scarce data in the literature characterising HAMC. We assessed eight concentrations of HAMC for printability, swelling and stability over time, rheological and structural behaviour, and viability of mesenchymal stem cells. We show that HAMC blends behave as viscous solutions at 4°C and have faster gelation times at higher temperatures, typically gelling upon reaching 37°C. We found the storage, loss and compressive moduli to be dependent on HAMC concentration and incubation time at 37°C, and show the compressive modulus to be strain-rate dependent. Swelling and stability was influenced by time, more so than pH environment. We demonstrated that mesenchymal stem cell viability was above 75% in bioprinted structures and cells remain viable for at least one week after 3D bioprinting. The mechanical properties of HAMC are highly tuneable and we show that higher concentrations of HAMC are particularly suited to cell-encapsulated 3D bioprinting applications that require scaffold structure and delivery of cells.
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Salehi H, Mehrasa M, Nasri-Nasrabadi B, Doostmohammadi M, Seyedebrahimi R, Davari N, Rafienia M, Hosseinabadi ME, Agheb M, Siavash M. Effects of nanozeolite/starch thermoplastic hydrogels on wound healing. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2017; 22:110. [PMID: 29026426 PMCID: PMC5629837 DOI: 10.4103/jrms.jrms_1037_16] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 04/26/2017] [Accepted: 07/04/2017] [Indexed: 11/04/2022]
Abstract
BACKGROUND Wound healing is a complex biological process. Some injuries lead to chronic nonhealing ulcers, and healing process is a challenge to both the patient and the medical team. We still look forward an appropriate wound dressing. MATERIALS AND METHODS In this study, starch-based nanocomposite hydrogel scaffolds reinforced by zeolite nanoparticles (nZ) were prepared for wound dressing. In addition, a herbal drug (chamomile extract) was added into the matrix to accelerate healing process. To estimate the cytocompatibility of hydrogel dressings, fibroblast mouse cells (L929) were cultured on scaffolds. Then, 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium-bromide assay test and interaction of cells and scaffolds were evaluated. For evaluating healing process, 48 male rats were randomly divided into four groups of four animals each (16 rats at each step). The ulcers of the first group were treated with the same size of pure hydrogels. The second group received a bandage with the same size of hydrogel/extract/4 wt% nZ (hydrogel NZE). The third group was treated with chamomile extract, and the fourth group was considered as control without taking any medicament. Finally, the dressings were applied on the chronic refractory ulcers of five patients. RESULTS After successful surface morphology and cytocompatibility tests, the animal study was carried out. There was a significant difference between starch/extract/4 wt% nZ and other groups on wound size decrement after day 7 (P < 0.05). At the clinical pilot study step, the refractory ulcers of all five patients were healed without any hypersensitivity reaction. CONCLUSION Starch-based hydrogel/zeolite dressings may be safe and effective for chronic refractory ulcers.
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Affiliation(s)
- Hossein Salehi
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Mehrasa
- Department of Biotechnology, Faculty of Advanced Sciences and Technologies, University of Isfahan, Isfahan, Iran
| | | | | | - Reihaneh Seyedebrahimi
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Navid Davari
- Department of Medical Sciences, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mohammad Rafienia
- Biosensor Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi E Hosseinabadi
- Department of Biomedical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
| | - Maria Agheb
- Research Centre of Faculty of Advanced Technologies, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mansour Siavash
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Visible Light-Cured Glycol Chitosan Hydrogel Containing a Beta-Cyclodextrin-Curcumin Inclusion Complex Improves Wound Healing In Vivo. Molecules 2017; 22:molecules22091513. [PMID: 28891961 PMCID: PMC6151484 DOI: 10.3390/molecules22091513] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/07/2017] [Accepted: 09/08/2017] [Indexed: 12/17/2022] Open
Abstract
Scarless wound healing is ideal for patients suffering from soft tissue defects. In this study, we prepared a novel wet dressing (β-CD-ic-CUR/GC) based on the visible light-cured glycol chitosan (GC) hydrogel and inclusion complex between beta-cyclodextrin (β-CD) and curcumin (CUR). We also evaluated its efficacy in the acceleration of wound healing as compared to that of CUR-loaded GC (CUR/GC). The conjugation of glycidyl methacrylate (GM) to GC for photo-curing was confirmed by 1H-NMR measurement, and the photo-cured GC hydrogel was characterized by the analyses of rheology, swelling ratio, SEM and degradation rate. After visible light irradiation, the surface/cross-sectional morphologies and storage (G′)/loss (G′′) moduli revealed the formation of hydrogel with interconnected porosity. The dressing β-CD-ic-CUR/GC exhibited a controlled release of 90% CUR in a sustained manner for 30 days. On the other hand, CUR/GC showed CUR release of 16%. β-CD acted as an excipient in improving the water-solubility of CUR and affected the release behavior of CUR. The in vivo animal tests including measurement of the remaining unhealed wound area and histological analyses showed that β-CD-ic-CUR/GC may have potential as a wet dressing agent to enhance soft tissue recovery in open fractures.
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Pereira RF, Sousa A, Barrias CC, Bayat A, Granja PL, Bártolo PJ. Advances in bioprinted cell-laden hydrogels for skin tissue engineering. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/s40898-017-0003-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Wei Z, Lewis DM, Xu Y, Gerecht S. Dual Cross-Linked Biofunctional and Self-Healing Networks to Generate User-Defined Modular Gradient Hydrogel Constructs. Adv Healthc Mater 2017; 6. [PMID: 28544647 DOI: 10.1002/adhm.201700523] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Indexed: 12/22/2022]
Abstract
Gradient hydrogels have been developed to mimic the spatiotemporal differences of multiple gradient cues in tissues. Current approaches used to generate such hydrogels are restricted to a single gradient shape and distribution. Here, a hydrogel is designed that includes two chemical cross-linking networks, biofunctional, and self-healing networks, enabling the customizable formation of modular gradient hydrogel construct with various gradient distributions and flexible shapes. The biofunctional networks are formed via Michael addition between the acrylates of oxidized acrylated hyaluronic acid (OAHA) and the dithiol of matrix metalloproteinase (MMP)-sensitive cross-linker and RGD peptides. The self-healing networks are formed via dynamic Schiff base reaction between N-carboxyethyl chitosan (CEC) and OAHA, which drives the modular gradient units to self-heal into an integral modular gradient hydrogel. The CEC-OAHA-MMP hydrogel exhibits excellent flowability at 37 °C under shear stress, enabling its injection to generate gradient distributions and shapes. Furthermore, encapsulated sarcoma cells respond to the gradient cues of RGD peptides and MMP-sensitive cross-linkers in the hydrogel. With these superior properties, the dual cross-linked CEC-OAHA-MMP hydrogel holds significant potential for generating customizable gradient hydrogel constructs, to study and guide cellular responses to their microenvironment such as in tumor mimicking, tissue engineering, and stem cell differentiation and morphogenesis.
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Affiliation(s)
- Zhao Wei
- Department of Chemical and Biomolecular Engineering; The Institute for NanoBioTechnology; Physical-Sciences Oncology Center; Johns Hopkins University; Baltimore MD 21218 USA
| | - Daniel M. Lewis
- Department of Chemical and Biomolecular Engineering; The Institute for NanoBioTechnology; Physical-Sciences Oncology Center; Johns Hopkins University; Baltimore MD 21218 USA
| | - Yu Xu
- Department of Chemical and Biomolecular Engineering; The Institute for NanoBioTechnology; Physical-Sciences Oncology Center; Johns Hopkins University; Baltimore MD 21218 USA
| | - Sharon Gerecht
- Department of Chemical and Biomolecular Engineering; The Institute for NanoBioTechnology; Physical-Sciences Oncology Center; Johns Hopkins University; Baltimore MD 21218 USA
- Department of Materials Science and Engineering; Johns Hopkins University; Baltimore MD 21218 USA
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Lectin-mediated reversible immobilization of human cells into a glycosylated macroporous protein hydrogel as a cell culture matrix. Sci Rep 2017; 7:6151. [PMID: 28733655 PMCID: PMC5522389 DOI: 10.1038/s41598-017-06240-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 06/12/2017] [Indexed: 12/19/2022] Open
Abstract
3D cell culture is a helpful approach to study cell-cell interaction in a native-like environment, but is often limited due the challenge of retrieving cells from the material. In this study, we present the use of recombinant lectin B, a sugar-binding protein with four binding cavities, to enable reversible cell integration into a macroporous protein hydrogel matrix. By functionalizing hydrogel precursors with saccharose, lectin B can both bind to sugar moieties on the cellular surface as well as to the modified hydrogel network. Confocal microscopy and flow cytometry analysis revealed cells to be integrated into the network and to adhere and proliferate. Furthermore, the specificity and reversibility was investigated by using a recombinantly produced yellow fluorescent - lectin B fusion protein and a variety of sugars with diverging affinities for lectin B at different concentrations and elution times. Cells could be eluted within minutes by addition of L-fucose to the cell-loaded hydrogels to make cells available for further analysis.
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247
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Heparin mimetic peptide nanofiber gel promotes regeneration of full thickness burn injury. Biomaterials 2017; 134:117-127. [DOI: 10.1016/j.biomaterials.2017.04.040] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/20/2017] [Accepted: 04/21/2017] [Indexed: 12/12/2022]
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A Gelatin-sulfonated Silk Composite Scaffold based on 3D Printing Technology Enhances Skin Regeneration by Stimulating Epidermal Growth and Dermal Neovascularization. Sci Rep 2017; 7:4288. [PMID: 28655891 PMCID: PMC5487355 DOI: 10.1038/s41598-017-04149-y] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 05/10/2017] [Indexed: 02/02/2023] Open
Abstract
One of the key problems hindering skin repair is the deficiency of dermal vascularization and difficulty of epidermis regeneration, which makes it challenging to fabricate scaffolds that can biologically fulfill the requirements for skin regeneration. To overcome this problem, three-dimensional printing was used to fabricate a gelatin-sulfonated silk composite scaffold that was incorporated with basic fibroblast growth factor 2 (FGF-2) through binding with a sulfonic acid group (SO3) (3DG-SF-SO3-FGF). The efficacy and mechanism by which the 3DG-SF-SO3-FGF scaffolds promote skin regeneration were investigated both within in vitro cell culture and in vivo with a full-thickness skin defect model. The histological results showed that the gelatin-sulfonated silk composite scaffolds promoted granulation, and that incorporation of FGF-2 significantly enhanced the regeneration of skin-like tissues after implantation in rat skin defects for 14 and 28 days. Further investigations demonstrated that 3DG-SF-SO3-FGF scaffolds might stimulate dermal vascularization. These findings thus suggest that incorporation of FGF-2 into the 3D printed scaffolds is a viable strategy for enhancing skin regeneration.
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Vagias A, Sergelen K, Koynov K, Košovan P, Dostalek J, Jonas U, Knoll W, Fytas G. Diffusion and Permeation of Labeled IgG in Grafted Hydrogels. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00514] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- A. Vagias
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
| | - K. Sergelen
- Biosensor
Technologies, AIT-Austrian Institute of Technology GmbH, Muthgasse
11, Wien 1190, Austria
- International
Graduate School on Bionanotechnology, University of Natural Resources
and Life Sciences, Nanyang Technological University, Singapore 639798
| | - K. Koynov
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
| | - P. Košovan
- Department
of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - J. Dostalek
- Biosensor
Technologies, AIT-Austrian Institute of Technology GmbH, Muthgasse
11, Wien 1190, Austria
| | - U. Jonas
- Macromolecular
Chemistry, Department Chemistry - Biology, University of Siegen, 57076 Siegen, Germany
| | - W. Knoll
- Biosensor
Technologies, AIT-Austrian Institute of Technology GmbH, Muthgasse
11, Wien 1190, Austria
| | - G. Fytas
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
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Controlled and sustained delivery of siRNA/NPs from hydrogels expedites bone fracture healing. Biomaterials 2017; 139:127-138. [PMID: 28601703 DOI: 10.1016/j.biomaterials.2017.06.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 05/16/2017] [Accepted: 06/02/2017] [Indexed: 01/01/2023]
Abstract
Despite great potential, delivery remains as the most significant barrier to the widespread use of siRNA therapeutics. siRNA has delivery limitations due to susceptibility to RNase degradation, low cellular uptake, and poor tissue-specific localization. Here, we report the development of a hybrid nanoparticle (NP)/hydrogel system that overcomes these challenges. Hydrogels provide localized and sustained delivery via controlled release of entrapped siRNA/NP complexes while NPs protect and enable efficient cytosolic accumulation of siRNA. To demonstrate therapeutic efficacy, regenerative siRNA against WW domain-containing E3 ubiquitin protein ligase 1 (Wwp1) complexed with NP were entrapped within poly(ethylene glycol) (PEG)-based hydrogels and implanted at sites of murine mid-diaphyseal femur fractures. Results showed localization of hydrogels and controlled release of siRNA/NPs at fractures for 28 days, a timeframe over which fracture healing occurs. siRNA/NP sustained delivery from hydrogels resulted in significant Wwp1 silencing at fracture callus compared to untreated controls. Fractures treated with siRNA/NP hydrogels exhibited accelerated bone formation and significantly increased biomechanical strength. This NP/hydrogel siRNA delivery system has outstanding therapeutic promise to augment fracture healing. Owing to the structural similarities of siRNA, the development of the hydrogel platform for in vivo siRNA delivery has myriad therapeutic possibilities in orthopaedics and beyond.
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